/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-NoLbe.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/ldv-races/race-4_2-thread_local_vars.i -------------------------------------------------------------------------------- This is Ultimate 0.2.1-9e34d99ae2c6837f487980c721c4b6acf9d9b15c-9e34d99 [2021-07-09 16:53:03,403 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-07-09 16:53:03,405 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-07-09 16:53:03,435 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2021-07-09 16:53:03,479 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-07-09 16:53:03,479 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-07-09 16:53:03,480 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-07-09 16:53:03,480 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-NoLbe.epf [2021-07-09 16:53:03,509 INFO L113 SettingsManager]: Loading preferences was successful [2021-07-09 16:53:03,509 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-07-09 16:53:03,509 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-07-09 16:53:03,510 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-07-09 16:53:03,511 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-07-09 16:53:03,512 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-07-09 16:53:03,512 INFO L138 SettingsManager]: * Use SBE=true [2021-07-09 16:53:03,512 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-07-09 16:53:03,512 INFO L138 SettingsManager]: * sizeof long=4 [2021-07-09 16:53:03,512 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-07-09 16:53:03,513 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-07-09 16:53:03,513 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-07-09 16:53:03,513 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-07-09 16:53:03,513 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-07-09 16:53:03,513 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-07-09 16:53:03,513 INFO L138 SettingsManager]: * sizeof long double=12 [2021-07-09 16:53:03,513 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-07-09 16:53:03,524 INFO L138 SettingsManager]: * Use constant arrays=true [2021-07-09 16:53:03,524 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-07-09 16:53:03,524 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-07-09 16:53:03,524 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-07-09 16:53:03,524 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-07-09 16:53:03,524 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-07-09 16:53:03,525 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-07-09 16:53:03,525 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-07-09 16:53:03,525 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-07-09 16:53:03,525 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-07-09 16:53:03,525 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-07-09 16:53:03,525 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-07-09 16:53:03,525 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-07-09 16:53:03,525 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-07-09 16:53:03,525 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-07-09 16:53:03,813 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-07-09 16:53:03,840 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-07-09 16:53:03,842 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-07-09 16:53:03,843 INFO L271 PluginConnector]: Initializing CDTParser... [2021-07-09 16:53:03,843 INFO L275 PluginConnector]: CDTParser initialized [2021-07-09 16:53:03,844 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-races/race-4_2-thread_local_vars.i [2021-07-09 16:53:03,905 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a90d9939f/ae2c50d934b34646810303c2195ef917/FLAGed9a44794 [2021-07-09 16:53:04,438 INFO L306 CDTParser]: Found 1 translation units. [2021-07-09 16:53:04,439 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/ldv-races/race-4_2-thread_local_vars.i [2021-07-09 16:53:04,453 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a90d9939f/ae2c50d934b34646810303c2195ef917/FLAGed9a44794 [2021-07-09 16:53:04,901 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a90d9939f/ae2c50d934b34646810303c2195ef917 [2021-07-09 16:53:04,903 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-07-09 16:53:04,905 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-07-09 16:53:04,921 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-07-09 16:53:04,921 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-07-09 16:53:04,924 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-07-09 16:53:04,925 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.07 04:53:04" (1/1) ... [2021-07-09 16:53:04,925 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@ed7539a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.07 04:53:04, skipping insertion in model container [2021-07-09 16:53:04,926 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.07 04:53:04" (1/1) ... [2021-07-09 16:53:04,930 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-07-09 16:53:05,007 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-07-09 16:53:05,431 WARN L224 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/ldv-races/race-4_2-thread_local_vars.i[76081,76094] [2021-07-09 16:53:05,446 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-07-09 16:53:05,454 INFO L203 MainTranslator]: Completed pre-run [2021-07-09 16:53:05,479 WARN L224 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/ldv-races/race-4_2-thread_local_vars.i[76081,76094] [2021-07-09 16:53:05,486 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-07-09 16:53:05,572 INFO L208 MainTranslator]: Completed translation [2021-07-09 16:53:05,573 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.07 04:53:05 WrapperNode [2021-07-09 16:53:05,573 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-07-09 16:53:05,574 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-07-09 16:53:05,574 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-07-09 16:53:05,574 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-07-09 16:53:05,578 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.07 04:53:05" (1/1) ... [2021-07-09 16:53:05,596 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.07 04:53:05" (1/1) ... [2021-07-09 16:53:05,616 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-07-09 16:53:05,617 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-07-09 16:53:05,617 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-07-09 16:53:05,617 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-07-09 16:53:05,622 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.07 04:53:05" (1/1) ... [2021-07-09 16:53:05,622 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.07 04:53:05" (1/1) ... [2021-07-09 16:53:05,625 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.07 04:53:05" (1/1) ... [2021-07-09 16:53:05,625 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.07 04:53:05" (1/1) ... [2021-07-09 16:53:05,632 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.07 04:53:05" (1/1) ... [2021-07-09 16:53:05,656 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.07 04:53:05" (1/1) ... [2021-07-09 16:53:05,659 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.07 04:53:05" (1/1) ... [2021-07-09 16:53:05,663 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-07-09 16:53:05,663 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-07-09 16:53:05,663 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-07-09 16:53:05,663 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-07-09 16:53:05,664 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.07 04:53:05" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-07-09 16:53:05,786 INFO L130 BoogieDeclarations]: Found specification of procedure thread_usb [2021-07-09 16:53:05,786 INFO L138 BoogieDeclarations]: Found implementation of procedure thread_usb [2021-07-09 16:53:05,786 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-07-09 16:53:05,787 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-07-09 16:53:05,787 INFO L130 BoogieDeclarations]: Found specification of procedure thread_ath9k [2021-07-09 16:53:05,788 INFO L138 BoogieDeclarations]: Found implementation of procedure thread_ath9k [2021-07-09 16:53:05,788 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2021-07-09 16:53:05,788 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-07-09 16:53:05,788 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-07-09 16:53:05,788 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-07-09 16:53:05,788 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-07-09 16:53:05,789 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-07-09 16:53:05,789 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-07-09 16:53:05,790 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-07-09 16:53:06,239 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-07-09 16:53:06,240 INFO L299 CfgBuilder]: Removed 34 assume(true) statements. [2021-07-09 16:53:06,242 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.07 04:53:06 BoogieIcfgContainer [2021-07-09 16:53:06,242 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-07-09 16:53:06,243 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-07-09 16:53:06,243 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-07-09 16:53:06,245 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-07-09 16:53:06,245 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.07 04:53:04" (1/3) ... [2021-07-09 16:53:06,246 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5514404c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.07 04:53:06, skipping insertion in model container [2021-07-09 16:53:06,246 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.07 04:53:05" (2/3) ... [2021-07-09 16:53:06,246 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5514404c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.07 04:53:06, skipping insertion in model container [2021-07-09 16:53:06,246 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.07 04:53:06" (3/3) ... [2021-07-09 16:53:06,248 INFO L111 eAbstractionObserver]: Analyzing ICFG race-4_2-thread_local_vars.i [2021-07-09 16:53:06,254 WARN L148 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-07-09 16:53:06,255 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-07-09 16:53:06,255 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 7 error locations. [2021-07-09 16:53:06,255 INFO L474 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-07-09 16:53:06,292 WARN L313 ript$VariableManager]: TermVariabe |thread_ath9kThread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:53:06,293 WARN L313 ript$VariableManager]: TermVariabe |thread_ath9kThread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:53:06,293 WARN L313 ript$VariableManager]: TermVariabe thread_ath9kThread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:53:06,293 WARN L313 ript$VariableManager]: TermVariabe thread_ath9kThread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:53:06,293 WARN L313 ript$VariableManager]: TermVariabe |thread_ath9kThread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:53:06,293 WARN L313 ript$VariableManager]: TermVariabe |thread_ath9kThread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:53:06,293 WARN L313 ript$VariableManager]: TermVariabe thread_ath9kThread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:53:06,293 WARN L313 ript$VariableManager]: TermVariabe thread_ath9kThread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:53:06,294 WARN L313 ript$VariableManager]: TermVariabe |thread_ath9kThread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:53:06,294 WARN L313 ript$VariableManager]: TermVariabe |thread_ath9kThread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:53:06,294 WARN L313 ript$VariableManager]: TermVariabe |thread_ath9kThread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:53:06,294 WARN L313 ript$VariableManager]: TermVariabe |thread_ath9kThread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:53:06,295 WARN L313 ript$VariableManager]: TermVariabe |thread_ath9kThread1of1ForFork1_#t~nondet34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:53:06,295 WARN L313 ript$VariableManager]: TermVariabe |thread_ath9kThread1of1ForFork1_#t~nondet34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:53:06,295 WARN L313 ript$VariableManager]: TermVariabe |thread_ath9kThread1of1ForFork1_#t~nondet34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:53:06,295 WARN L313 ript$VariableManager]: TermVariabe |thread_ath9kThread1of1ForFork1_#t~switch35| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:53:06,296 WARN L313 ript$VariableManager]: TermVariabe |thread_ath9kThread1of1ForFork1_#t~nondet34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:53:06,296 WARN L313 ript$VariableManager]: TermVariabe |thread_ath9kThread1of1ForFork1_#t~switch35| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:53:06,296 WARN L313 ript$VariableManager]: TermVariabe |thread_ath9kThread1of1ForFork1_#t~switch35| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:53:06,296 WARN L313 ript$VariableManager]: TermVariabe |thread_ath9kThread1of1ForFork1_#t~switch35| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:53:06,296 WARN L313 ript$VariableManager]: TermVariabe |thread_ath9kThread1of1ForFork1_#t~switch35| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:53:06,296 WARN L313 ript$VariableManager]: TermVariabe |thread_ath9kThread1of1ForFork1_#t~switch35| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:53:06,296 WARN L313 ript$VariableManager]: TermVariabe |thread_ath9kThread1of1ForFork1_ath9k_flush_#t~nondet33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:53:06,296 WARN L313 ript$VariableManager]: TermVariabe |thread_ath9kThread1of1ForFork1_ath9k_flush_#t~nondet33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:53:06,296 WARN L313 ript$VariableManager]: TermVariabe |thread_ath9kThread1of1ForFork1_#t~switch35| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:53:06,297 WARN L313 ript$VariableManager]: TermVariabe |thread_ath9kThread1of1ForFork1_#t~nondet34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:53:06,297 WARN L313 ript$VariableManager]: TermVariabe |thread_ath9kThread1of1ForFork1_#t~switch35| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:53:06,297 WARN L313 ript$VariableManager]: TermVariabe |thread_ath9kThread1of1ForFork1_#t~switch35| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:53:06,297 WARN L313 ript$VariableManager]: TermVariabe |thread_ath9kThread1of1ForFork1_#t~nondet34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:53:06,297 WARN L313 ript$VariableManager]: TermVariabe |thread_ath9kThread1of1ForFork1_#t~switch35| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:53:06,297 WARN L313 ript$VariableManager]: TermVariabe |thread_ath9kThread1of1ForFork1_ath9k_flush_#t~nondet33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:53:06,297 WARN L313 ript$VariableManager]: TermVariabe |thread_ath9kThread1of1ForFork1_ath9k_flush_#t~nondet33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:53:06,298 WARN L313 ript$VariableManager]: TermVariabe |thread_ath9kThread1of1ForFork1_#t~switch35| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:53:06,299 WARN L313 ript$VariableManager]: TermVariabe |thread_ath9kThread1of1ForFork1_#t~switch35| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:53:06,299 WARN L313 ript$VariableManager]: TermVariabe |thread_ath9kThread1of1ForFork1_#t~switch35| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:53:06,299 WARN L313 ript$VariableManager]: TermVariabe |thread_ath9kThread1of1ForFork1_#t~switch35| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:53:06,299 WARN L313 ript$VariableManager]: TermVariabe |thread_ath9kThread1of1ForFork1_ath9k_flush_#t~nondet33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:53:06,299 WARN L313 ript$VariableManager]: TermVariabe |thread_ath9kThread1of1ForFork1_ath9k_flush_#t~nondet33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:53:06,299 WARN L313 ript$VariableManager]: TermVariabe |thread_ath9kThread1of1ForFork1_#t~nondet34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:53:06,300 WARN L313 ript$VariableManager]: TermVariabe |thread_ath9kThread1of1ForFork1_#t~nondet34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:53:06,300 WARN L313 ript$VariableManager]: TermVariabe |thread_ath9kThread1of1ForFork1_#t~switch35| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:53:06,300 WARN L313 ript$VariableManager]: TermVariabe |thread_ath9kThread1of1ForFork1_#t~switch35| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:53:06,300 WARN L313 ript$VariableManager]: TermVariabe |thread_ath9kThread1of1ForFork1_ldv_assert_#in~expression| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:53:06,300 WARN L313 ript$VariableManager]: TermVariabe |thread_ath9kThread1of1ForFork1_ldv_assert_#in~expression| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:53:06,300 WARN L313 ript$VariableManager]: TermVariabe thread_ath9kThread1of1ForFork1_ldv_assert_~expression not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:53:06,300 WARN L313 ript$VariableManager]: TermVariabe thread_ath9kThread1of1ForFork1_ldv_assert_~expression not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:53:06,300 WARN L313 ript$VariableManager]: TermVariabe |thread_ath9kThread1of1ForFork1_ldv_assert_#in~expression| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:53:06,300 WARN L313 ript$VariableManager]: TermVariabe thread_ath9kThread1of1ForFork1_ldv_assert_~expression not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:53:06,301 WARN L313 ript$VariableManager]: TermVariabe |thread_ath9kThread1of1ForFork1_ldv_assert_#in~expression| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:53:06,301 WARN L313 ript$VariableManager]: TermVariabe thread_ath9kThread1of1ForFork1_ldv_assert_~expression not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:53:06,301 WARN L313 ript$VariableManager]: TermVariabe thread_ath9kThread1of1ForFork1_ldv_assert_~expression not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:53:06,301 WARN L313 ript$VariableManager]: TermVariabe thread_ath9kThread1of1ForFork1_ldv_assert_~expression not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:53:06,301 WARN L313 ript$VariableManager]: TermVariabe thread_ath9kThread1of1ForFork1_ldv_assert_~expression not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:53:06,301 WARN L313 ript$VariableManager]: TermVariabe thread_ath9kThread1of1ForFork1_ldv_assert_~expression not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:53:06,305 WARN L313 ript$VariableManager]: TermVariabe |thread_usbThread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:53:06,305 WARN L313 ript$VariableManager]: TermVariabe |thread_usbThread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:53:06,305 WARN L313 ript$VariableManager]: TermVariabe thread_usbThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:53:06,305 WARN L313 ript$VariableManager]: TermVariabe thread_usbThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:53:06,306 WARN L313 ript$VariableManager]: TermVariabe |thread_usbThread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:53:06,306 WARN L313 ript$VariableManager]: TermVariabe |thread_usbThread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:53:06,306 WARN L313 ript$VariableManager]: TermVariabe thread_usbThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:53:06,306 WARN L313 ript$VariableManager]: TermVariabe thread_usbThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:53:06,306 WARN L313 ript$VariableManager]: TermVariabe thread_usbThread1of1ForFork0_~probe_ret~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:53:06,306 WARN L313 ript$VariableManager]: TermVariabe thread_usbThread1of1ForFork0_~probe_ret~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:53:06,306 WARN L313 ript$VariableManager]: TermVariabe |thread_usbThread1of1ForFork0_#t~nondet42| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:53:06,306 WARN L313 ript$VariableManager]: TermVariabe |thread_usbThread1of1ForFork0_#t~nondet42| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:53:06,306 WARN L313 ript$VariableManager]: TermVariabe |thread_usbThread1of1ForFork0_ldv_assert_#in~expression| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:53:06,307 WARN L313 ript$VariableManager]: TermVariabe |thread_usbThread1of1ForFork0_ldv_assert_#in~expression| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:53:06,307 WARN L313 ript$VariableManager]: TermVariabe |thread_usbThread1of1ForFork0_#t~nondet42| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:53:06,307 WARN L313 ript$VariableManager]: TermVariabe |thread_usbThread1of1ForFork0_#t~switch43| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:53:06,307 WARN L313 ript$VariableManager]: TermVariabe |thread_usbThread1of1ForFork0_#t~nondet42| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:53:06,307 WARN L313 ript$VariableManager]: TermVariabe |thread_usbThread1of1ForFork0_#t~switch43| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:53:06,307 WARN L313 ript$VariableManager]: TermVariabe thread_usbThread1of1ForFork0_ldv_assert_~expression not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:53:06,307 WARN L313 ript$VariableManager]: TermVariabe thread_usbThread1of1ForFork0_ldv_assert_~expression not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:53:06,307 WARN L313 ript$VariableManager]: TermVariabe |thread_usbThread1of1ForFork0_#t~switch43| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:53:06,307 WARN L313 ript$VariableManager]: TermVariabe |thread_usbThread1of1ForFork0_#t~switch43| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:53:06,308 WARN L313 ript$VariableManager]: TermVariabe |thread_usbThread1of1ForFork0_#t~switch43| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:53:06,308 WARN L313 ript$VariableManager]: TermVariabe |thread_usbThread1of1ForFork0_#t~switch43| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:53:06,308 WARN L313 ript$VariableManager]: TermVariabe |thread_usbThread1of1ForFork0_ldv_assert_#in~expression| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:53:06,308 WARN L313 ript$VariableManager]: TermVariabe thread_usbThread1of1ForFork0_ldv_assert_~expression not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:53:06,308 WARN L313 ript$VariableManager]: TermVariabe |thread_usbThread1of1ForFork0_ldv_assert_#in~expression| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:53:06,308 WARN L313 ript$VariableManager]: TermVariabe thread_usbThread1of1ForFork0_ldv_assert_~expression not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:53:06,309 WARN L313 ript$VariableManager]: TermVariabe |thread_usbThread1of1ForFork0_#t~switch43| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:53:06,309 WARN L313 ript$VariableManager]: TermVariabe |thread_usbThread1of1ForFork0_#t~nondet42| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:53:06,309 WARN L313 ript$VariableManager]: TermVariabe |thread_usbThread1of1ForFork0_#t~switch43| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:53:06,309 WARN L313 ript$VariableManager]: TermVariabe |thread_usbThread1of1ForFork0_#t~switch43| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:53:06,309 WARN L313 ript$VariableManager]: TermVariabe |thread_usbThread1of1ForFork0_#t~nondet42| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:53:06,309 WARN L313 ript$VariableManager]: TermVariabe |thread_usbThread1of1ForFork0_#t~switch43| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:53:06,309 WARN L313 ript$VariableManager]: TermVariabe thread_usbThread1of1ForFork0_ldv_assert_~expression not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:53:06,309 WARN L313 ript$VariableManager]: TermVariabe thread_usbThread1of1ForFork0_ldv_assert_~expression not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:53:06,310 WARN L313 ript$VariableManager]: TermVariabe thread_usbThread1of1ForFork0_ldv_assert_~expression not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:53:06,310 WARN L313 ript$VariableManager]: TermVariabe thread_usbThread1of1ForFork0_ldv_assert_~expression not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:53:06,310 WARN L313 ript$VariableManager]: TermVariabe |thread_usbThread1of1ForFork0_ath_ahb_probe_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:53:06,310 WARN L313 ript$VariableManager]: TermVariabe |thread_usbThread1of1ForFork0_ath_ahb_probe_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:53:06,310 WARN L313 ript$VariableManager]: TermVariabe |thread_usbThread1of1ForFork0_#t~switch43| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:53:06,311 WARN L313 ript$VariableManager]: TermVariabe |thread_usbThread1of1ForFork0_#t~switch43| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:53:06,311 WARN L313 ript$VariableManager]: TermVariabe |thread_usbThread1of1ForFork0_#t~switch43| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:53:06,312 WARN L313 ript$VariableManager]: TermVariabe |thread_usbThread1of1ForFork0_#t~switch43| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:53:06,314 WARN L313 ript$VariableManager]: TermVariabe |thread_usbThread1of1ForFork0_#t~switch43| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:53:06,315 WARN L313 ript$VariableManager]: TermVariabe |thread_usbThread1of1ForFork0_#t~switch43| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:53:06,315 WARN L313 ript$VariableManager]: TermVariabe |thread_usbThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:53:06,315 WARN L313 ript$VariableManager]: TermVariabe |thread_usbThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:53:06,320 WARN L313 ript$VariableManager]: TermVariabe |thread_usbThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:53:06,320 WARN L313 ript$VariableManager]: TermVariabe |thread_usbThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:53:06,320 WARN L313 ript$VariableManager]: TermVariabe thread_usbThread1of1ForFork0_ath_ahb_probe_~error~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:53:06,321 WARN L313 ript$VariableManager]: TermVariabe |thread_usbThread1of1ForFork0_ath_ahb_probe_#t~ret41| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:53:06,321 WARN L313 ript$VariableManager]: TermVariabe thread_usbThread1of1ForFork0_ath_ahb_probe_~error~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:53:06,321 WARN L313 ript$VariableManager]: TermVariabe |thread_usbThread1of1ForFork0_ath_ahb_probe_#t~ret41| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:53:06,321 WARN L313 ript$VariableManager]: TermVariabe |thread_usbThread1of1ForFork0_#t~nondet42| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:53:06,321 WARN L313 ript$VariableManager]: TermVariabe |thread_usbThread1of1ForFork0_#t~nondet42| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:53:06,321 WARN L313 ript$VariableManager]: TermVariabe |thread_usbThread1of1ForFork0_#t~switch43| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:53:06,321 WARN L313 ript$VariableManager]: TermVariabe |thread_usbThread1of1ForFork0_#t~nondet42| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:53:06,321 WARN L313 ript$VariableManager]: TermVariabe |thread_usbThread1of1ForFork0_#t~switch43| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:53:06,322 WARN L313 ript$VariableManager]: TermVariabe |thread_usbThread1of1ForFork0_#t~switch43| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:53:06,322 WARN L313 ript$VariableManager]: TermVariabe |thread_usbThread1of1ForFork0_#t~nondet42| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:53:06,322 WARN L313 ript$VariableManager]: TermVariabe |thread_usbThread1of1ForFork0_#t~switch43| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:53:06,322 WARN L313 ript$VariableManager]: TermVariabe thread_usbThread1of1ForFork0_ath_ahb_probe_~error~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:53:06,322 WARN L313 ript$VariableManager]: TermVariabe thread_usbThread1of1ForFork0_ath_ahb_probe_~error~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:53:06,322 WARN L313 ript$VariableManager]: TermVariabe |thread_usbThread1of1ForFork0_ieee80211_deregister_hw_#t~nondet40.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:53:06,322 WARN L313 ript$VariableManager]: TermVariabe |thread_usbThread1of1ForFork0_ieee80211_deregister_hw_~#status~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:53:06,322 WARN L313 ript$VariableManager]: TermVariabe |thread_usbThread1of1ForFork0_ieee80211_deregister_hw_~#status~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:53:06,322 WARN L313 ript$VariableManager]: TermVariabe |thread_usbThread1of1ForFork0_ieee80211_deregister_hw_#t~mem39| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:53:06,322 WARN L313 ript$VariableManager]: TermVariabe |thread_usbThread1of1ForFork0_ieee80211_deregister_hw_#t~nondet40.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:53:06,322 WARN L313 ript$VariableManager]: TermVariabe |thread_usbThread1of1ForFork0_ieee80211_deregister_hw_#t~nondet40.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:53:06,323 WARN L313 ript$VariableManager]: TermVariabe |thread_usbThread1of1ForFork0_ieee80211_deregister_hw_~#status~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:53:06,323 WARN L313 ript$VariableManager]: TermVariabe |thread_usbThread1of1ForFork0_ieee80211_deregister_hw_~#status~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:53:06,323 WARN L313 ript$VariableManager]: TermVariabe |thread_usbThread1of1ForFork0_ieee80211_deregister_hw_#t~mem39| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:53:06,323 WARN L313 ript$VariableManager]: TermVariabe |thread_usbThread1of1ForFork0_ieee80211_deregister_hw_#t~nondet40.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:53:06,323 WARN L313 ript$VariableManager]: TermVariabe |thread_usbThread1of1ForFork0_#t~switch43| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:53:06,323 WARN L313 ript$VariableManager]: TermVariabe |thread_usbThread1of1ForFork0_#t~switch43| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:53:06,323 WARN L313 ript$VariableManager]: TermVariabe |thread_usbThread1of1ForFork0_#t~switch43| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:53:06,323 WARN L313 ript$VariableManager]: TermVariabe |thread_usbThread1of1ForFork0_#t~switch43| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:53:06,323 WARN L313 ript$VariableManager]: TermVariabe |thread_usbThread1of1ForFork0_ieee80211_register_hw_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:53:06,323 WARN L313 ript$VariableManager]: TermVariabe |thread_usbThread1of1ForFork0_ieee80211_register_hw_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:53:06,324 WARN L313 ript$VariableManager]: TermVariabe |thread_usbThread1of1ForFork0_ieee80211_deregister_hw_~#status~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:53:06,324 WARN L313 ript$VariableManager]: TermVariabe |thread_usbThread1of1ForFork0_ieee80211_deregister_hw_~#status~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:53:06,324 WARN L313 ript$VariableManager]: TermVariabe |thread_usbThread1of1ForFork0_ieee80211_deregister_hw_~#status~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:53:06,324 WARN L313 ript$VariableManager]: TermVariabe |thread_usbThread1of1ForFork0_ieee80211_deregister_hw_~#status~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:53:06,324 WARN L313 ript$VariableManager]: TermVariabe |thread_usbThread1of1ForFork0_ieee80211_register_hw_#t~nondet38| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:53:06,324 WARN L313 ript$VariableManager]: TermVariabe |thread_usbThread1of1ForFork0_ieee80211_register_hw_#t~pre37| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:53:06,324 WARN L313 ript$VariableManager]: TermVariabe |thread_usbThread1of1ForFork0_ieee80211_register_hw_#t~nondet36| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:53:06,324 WARN L313 ript$VariableManager]: TermVariabe |thread_usbThread1of1ForFork0_ieee80211_register_hw_#t~nondet38| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:53:06,324 WARN L313 ript$VariableManager]: TermVariabe |thread_usbThread1of1ForFork0_ieee80211_register_hw_#t~pre37| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:53:06,324 WARN L313 ript$VariableManager]: TermVariabe |thread_usbThread1of1ForFork0_ieee80211_register_hw_#t~nondet36| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:53:06,324 WARN L313 ript$VariableManager]: TermVariabe |thread_usbThread1of1ForFork0_ieee80211_deregister_hw_#t~mem39| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:53:06,324 WARN L313 ript$VariableManager]: TermVariabe |thread_usbThread1of1ForFork0_ieee80211_deregister_hw_#t~mem39| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:53:06,325 WARN L313 ript$VariableManager]: TermVariabe |thread_usbThread1of1ForFork0_ieee80211_register_hw_#t~nondet36| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:53:06,325 WARN L313 ript$VariableManager]: TermVariabe |thread_usbThread1of1ForFork0_ieee80211_register_hw_#t~nondet36| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:53:06,325 WARN L313 ript$VariableManager]: TermVariabe |thread_usbThread1of1ForFork0_ieee80211_register_hw_#t~nondet36| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:53:06,325 WARN L313 ript$VariableManager]: TermVariabe |thread_usbThread1of1ForFork0_ieee80211_register_hw_#t~nondet36| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:53:06,325 WARN L313 ript$VariableManager]: TermVariabe |thread_usbThread1of1ForFork0_ieee80211_register_hw_#t~nondet36| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:53:06,325 WARN L313 ript$VariableManager]: TermVariabe |thread_usbThread1of1ForFork0_ieee80211_register_hw_#t~nondet36| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:53:06,326 WARN L313 ript$VariableManager]: TermVariabe |thread_usbThread1of1ForFork0_ieee80211_deregister_hw_#t~nondet40.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:53:06,326 WARN L313 ript$VariableManager]: TermVariabe |thread_usbThread1of1ForFork0_ieee80211_deregister_hw_~#status~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:53:06,326 WARN L313 ript$VariableManager]: TermVariabe |thread_usbThread1of1ForFork0_ieee80211_deregister_hw_~#status~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:53:06,326 WARN L313 ript$VariableManager]: TermVariabe |thread_usbThread1of1ForFork0_ieee80211_deregister_hw_#t~nondet40.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:53:06,326 WARN L313 ript$VariableManager]: TermVariabe |thread_usbThread1of1ForFork0_ieee80211_deregister_hw_#t~nondet40.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:53:06,326 WARN L313 ript$VariableManager]: TermVariabe |thread_usbThread1of1ForFork0_ieee80211_deregister_hw_~#status~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:53:06,326 WARN L313 ript$VariableManager]: TermVariabe |thread_usbThread1of1ForFork0_ieee80211_deregister_hw_~#status~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:53:06,326 WARN L313 ript$VariableManager]: TermVariabe |thread_usbThread1of1ForFork0_ieee80211_deregister_hw_#t~nondet40.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:53:06,326 WARN L313 ript$VariableManager]: TermVariabe |thread_usbThread1of1ForFork0_ieee80211_register_hw_#t~nondet36| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:53:06,326 WARN L313 ript$VariableManager]: TermVariabe |thread_usbThread1of1ForFork0_ieee80211_register_hw_#t~nondet36| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:53:06,326 WARN L313 ript$VariableManager]: TermVariabe |thread_usbThread1of1ForFork0_ieee80211_register_hw_#t~nondet36| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:53:06,326 WARN L313 ript$VariableManager]: TermVariabe |thread_usbThread1of1ForFork0_ieee80211_register_hw_#t~nondet36| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:53:06,327 WARN L313 ript$VariableManager]: TermVariabe |thread_usbThread1of1ForFork0_ieee80211_deregister_hw_#t~nondet40.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:53:06,327 WARN L313 ript$VariableManager]: TermVariabe |thread_usbThread1of1ForFork0_ieee80211_deregister_hw_#t~nondet40.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:53:06,327 WARN L313 ript$VariableManager]: TermVariabe |thread_usbThread1of1ForFork0_ieee80211_deregister_hw_#t~nondet40.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:53:06,327 WARN L313 ript$VariableManager]: TermVariabe |thread_usbThread1of1ForFork0_ieee80211_deregister_hw_#t~nondet40.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:53:06,327 WARN L313 ript$VariableManager]: TermVariabe |thread_usbThread1of1ForFork0_ieee80211_register_hw_#t~pre37| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:53:06,327 WARN L313 ript$VariableManager]: TermVariabe |thread_usbThread1of1ForFork0_ieee80211_register_hw_#t~pre37| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:53:06,327 WARN L313 ript$VariableManager]: TermVariabe |thread_usbThread1of1ForFork0_ieee80211_register_hw_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:53:06,327 WARN L313 ript$VariableManager]: TermVariabe |thread_usbThread1of1ForFork0_ieee80211_register_hw_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:53:06,327 WARN L313 ript$VariableManager]: TermVariabe |thread_usbThread1of1ForFork0_ieee80211_deregister_hw_#t~mem39| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:53:06,327 WARN L313 ript$VariableManager]: TermVariabe |thread_usbThread1of1ForFork0_ieee80211_deregister_hw_#t~mem39| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:53:06,327 WARN L313 ript$VariableManager]: TermVariabe |thread_usbThread1of1ForFork0_ieee80211_register_hw_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:53:06,327 WARN L313 ript$VariableManager]: TermVariabe |thread_usbThread1of1ForFork0_ath_ahb_probe_#t~ret41| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:53:06,328 WARN L313 ript$VariableManager]: TermVariabe |thread_usbThread1of1ForFork0_ieee80211_register_hw_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:53:06,328 WARN L313 ript$VariableManager]: TermVariabe |thread_usbThread1of1ForFork0_ath_ahb_probe_#t~ret41| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:53:06,328 WARN L313 ript$VariableManager]: TermVariabe |thread_usbThread1of1ForFork0_ieee80211_deregister_hw_~#status~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:53:06,328 WARN L313 ript$VariableManager]: TermVariabe |thread_usbThread1of1ForFork0_ieee80211_deregister_hw_~#status~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:53:06,328 WARN L313 ript$VariableManager]: TermVariabe |thread_usbThread1of1ForFork0_ieee80211_register_hw_#t~pre37| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:53:06,328 WARN L313 ript$VariableManager]: TermVariabe |thread_usbThread1of1ForFork0_ieee80211_register_hw_#t~pre37| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:53:06,328 WARN L313 ript$VariableManager]: TermVariabe |thread_usbThread1of1ForFork0_ath_ahb_probe_#t~ret41| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:53:06,328 WARN L313 ript$VariableManager]: TermVariabe |thread_usbThread1of1ForFork0_ath_ahb_probe_#t~ret41| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:53:06,328 WARN L313 ript$VariableManager]: TermVariabe |thread_usbThread1of1ForFork0_ieee80211_deregister_hw_~#status~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:53:06,328 WARN L313 ript$VariableManager]: TermVariabe |thread_usbThread1of1ForFork0_ieee80211_deregister_hw_~#status~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:53:06,328 WARN L313 ript$VariableManager]: TermVariabe |thread_usbThread1of1ForFork0_ieee80211_deregister_hw_~#status~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:53:06,329 WARN L313 ript$VariableManager]: TermVariabe |thread_usbThread1of1ForFork0_ieee80211_deregister_hw_~#status~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:53:06,329 WARN L313 ript$VariableManager]: TermVariabe |thread_usbThread1of1ForFork0_ath_ahb_probe_#t~ret41| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:53:06,329 WARN L313 ript$VariableManager]: TermVariabe thread_usbThread1of1ForFork0_ath_ahb_probe_~error~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:53:06,329 WARN L313 ript$VariableManager]: TermVariabe |thread_usbThread1of1ForFork0_ath_ahb_probe_#t~ret41| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:53:06,329 WARN L313 ript$VariableManager]: TermVariabe thread_usbThread1of1ForFork0_ath_ahb_probe_~error~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:53:06,329 WARN L313 ript$VariableManager]: TermVariabe |thread_usbThread1of1ForFork0_ieee80211_register_hw_#t~pre37| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:53:06,329 WARN L313 ript$VariableManager]: TermVariabe |thread_usbThread1of1ForFork0_ieee80211_register_hw_#t~pre37| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:53:06,329 WARN L313 ript$VariableManager]: TermVariabe |thread_usbThread1of1ForFork0_ath_ahb_probe_#t~ret41| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:53:06,329 WARN L313 ript$VariableManager]: TermVariabe |thread_usbThread1of1ForFork0_ath_ahb_probe_#t~ret41| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:53:06,329 WARN L313 ript$VariableManager]: TermVariabe |thread_usbThread1of1ForFork0_ieee80211_register_hw_#t~nondet38| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:53:06,329 WARN L313 ript$VariableManager]: TermVariabe |thread_usbThread1of1ForFork0_ieee80211_register_hw_#t~nondet38| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:53:06,330 WARN L313 ript$VariableManager]: TermVariabe thread_usbThread1of1ForFork0_ath_ahb_probe_~error~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:53:06,330 WARN L313 ript$VariableManager]: TermVariabe thread_usbThread1of1ForFork0_ath_ahb_probe_~error~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:53:06,330 WARN L313 ript$VariableManager]: TermVariabe thread_usbThread1of1ForFork0_ath_ahb_probe_~error~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:53:06,330 WARN L313 ript$VariableManager]: TermVariabe thread_usbThread1of1ForFork0_ath_ahb_probe_~error~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:53:06,330 WARN L313 ript$VariableManager]: TermVariabe |thread_usbThread1of1ForFork0_ldv_assert_#in~expression| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:53:06,330 WARN L313 ript$VariableManager]: TermVariabe |thread_usbThread1of1ForFork0_ldv_assert_#in~expression| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:53:06,330 WARN L313 ript$VariableManager]: TermVariabe |thread_usbThread1of1ForFork0_ieee80211_register_hw_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:53:06,330 WARN L313 ript$VariableManager]: TermVariabe |thread_usbThread1of1ForFork0_ieee80211_register_hw_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:53:06,330 WARN L313 ript$VariableManager]: TermVariabe |thread_usbThread1of1ForFork0_ath_ahb_probe_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:53:06,330 WARN L313 ript$VariableManager]: TermVariabe |thread_usbThread1of1ForFork0_ath_ahb_probe_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:53:06,330 WARN L313 ript$VariableManager]: TermVariabe |thread_usbThread1of1ForFork0_ath_ahb_probe_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:53:06,330 WARN L313 ript$VariableManager]: TermVariabe |thread_usbThread1of1ForFork0_ath_ahb_probe_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:53:06,331 WARN L313 ript$VariableManager]: TermVariabe thread_usbThread1of1ForFork0_ldv_assert_~expression not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:53:06,331 WARN L313 ript$VariableManager]: TermVariabe thread_usbThread1of1ForFork0_ldv_assert_~expression not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:53:06,331 WARN L313 ript$VariableManager]: TermVariabe |thread_usbThread1of1ForFork0_ath_ahb_probe_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:53:06,331 WARN L313 ript$VariableManager]: TermVariabe |thread_usbThread1of1ForFork0_#t~ret44| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:53:06,331 WARN L313 ript$VariableManager]: TermVariabe |thread_usbThread1of1ForFork0_ath_ahb_probe_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:53:06,331 WARN L313 ript$VariableManager]: TermVariabe |thread_usbThread1of1ForFork0_#t~ret44| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:53:06,331 WARN L313 ript$VariableManager]: TermVariabe |thread_usbThread1of1ForFork0_ldv_assert_#in~expression| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:53:06,331 WARN L313 ript$VariableManager]: TermVariabe thread_usbThread1of1ForFork0_ldv_assert_~expression not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:53:06,336 WARN L313 ript$VariableManager]: TermVariabe |thread_usbThread1of1ForFork0_ldv_assert_#in~expression| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:53:06,336 WARN L313 ript$VariableManager]: TermVariabe thread_usbThread1of1ForFork0_ldv_assert_~expression not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:53:06,336 WARN L313 ript$VariableManager]: TermVariabe |thread_usbThread1of1ForFork0_#t~ret44| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:53:06,336 WARN L313 ript$VariableManager]: TermVariabe |thread_usbThread1of1ForFork0_#t~ret44| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:53:06,337 WARN L313 ript$VariableManager]: TermVariabe thread_usbThread1of1ForFork0_ldv_assert_~expression not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:53:06,337 WARN L313 ript$VariableManager]: TermVariabe thread_usbThread1of1ForFork0_ldv_assert_~expression not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:53:06,337 WARN L313 ript$VariableManager]: TermVariabe thread_usbThread1of1ForFork0_ldv_assert_~expression not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:53:06,340 WARN L313 ript$VariableManager]: TermVariabe thread_usbThread1of1ForFork0_ldv_assert_~expression not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:53:06,340 WARN L313 ript$VariableManager]: TermVariabe |thread_usbThread1of1ForFork0_#t~ret44| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:53:06,340 WARN L313 ript$VariableManager]: TermVariabe thread_usbThread1of1ForFork0_~probe_ret~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:53:06,340 WARN L313 ript$VariableManager]: TermVariabe |thread_usbThread1of1ForFork0_#t~ret44| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:53:06,341 WARN L313 ript$VariableManager]: TermVariabe thread_usbThread1of1ForFork0_~probe_ret~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:53:06,341 WARN L313 ript$VariableManager]: TermVariabe |thread_usbThread1of1ForFork0_#t~ret44| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:53:06,341 WARN L313 ript$VariableManager]: TermVariabe |thread_usbThread1of1ForFork0_#t~ret44| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:53:06,341 WARN L313 ript$VariableManager]: TermVariabe thread_usbThread1of1ForFork0_~probe_ret~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:53:06,341 WARN L313 ript$VariableManager]: TermVariabe thread_usbThread1of1ForFork0_~probe_ret~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:53:06,341 WARN L313 ript$VariableManager]: TermVariabe thread_usbThread1of1ForFork0_~probe_ret~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:53:06,341 WARN L313 ript$VariableManager]: TermVariabe thread_usbThread1of1ForFork0_~probe_ret~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:53:06,342 WARN L313 ript$VariableManager]: TermVariabe |thread_usbThread1of1ForFork0_ldv_assert_#in~expression| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:53:06,342 WARN L313 ript$VariableManager]: TermVariabe |thread_usbThread1of1ForFork0_ldv_assert_#in~expression| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:53:06,342 WARN L313 ript$VariableManager]: TermVariabe thread_usbThread1of1ForFork0_ldv_assert_~expression not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:53:06,342 WARN L313 ript$VariableManager]: TermVariabe thread_usbThread1of1ForFork0_ldv_assert_~expression not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:53:06,342 WARN L313 ript$VariableManager]: TermVariabe |thread_usbThread1of1ForFork0_ldv_assert_#in~expression| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:53:06,342 WARN L313 ript$VariableManager]: TermVariabe thread_usbThread1of1ForFork0_ldv_assert_~expression not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:53:06,342 WARN L313 ript$VariableManager]: TermVariabe |thread_usbThread1of1ForFork0_ldv_assert_#in~expression| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:53:06,342 WARN L313 ript$VariableManager]: TermVariabe thread_usbThread1of1ForFork0_ldv_assert_~expression not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:53:06,342 WARN L313 ript$VariableManager]: TermVariabe thread_usbThread1of1ForFork0_ldv_assert_~expression not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:53:06,342 WARN L313 ript$VariableManager]: TermVariabe thread_usbThread1of1ForFork0_ldv_assert_~expression not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:53:06,342 WARN L313 ript$VariableManager]: TermVariabe thread_usbThread1of1ForFork0_ldv_assert_~expression not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:53:06,343 WARN L313 ript$VariableManager]: TermVariabe thread_usbThread1of1ForFork0_ldv_assert_~expression not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:53:06,344 WARN L313 ript$VariableManager]: TermVariabe |thread_usbThread1of1ForFork0_#t~nondet42| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:53:06,344 WARN L313 ript$VariableManager]: TermVariabe |thread_usbThread1of1ForFork0_ieee80211_deregister_hw_#t~nondet40.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:53:06,345 WARN L313 ript$VariableManager]: TermVariabe |thread_usbThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:53:06,345 WARN L313 ript$VariableManager]: TermVariabe |thread_usbThread1of1ForFork0_ieee80211_deregister_hw_#t~mem39| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:53:06,345 WARN L313 ript$VariableManager]: TermVariabe |thread_usbThread1of1ForFork0_#t~ret44| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:53:06,345 WARN L313 ript$VariableManager]: TermVariabe thread_usbThread1of1ForFork0_~probe_ret~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:53:06,345 WARN L313 ript$VariableManager]: TermVariabe |thread_usbThread1of1ForFork0_ieee80211_deregister_hw_~#status~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:53:06,345 WARN L313 ript$VariableManager]: TermVariabe thread_usbThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:53:06,345 WARN L313 ript$VariableManager]: TermVariabe thread_usbThread1of1ForFork0_ath_ahb_probe_~error~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:53:06,346 WARN L313 ript$VariableManager]: TermVariabe |thread_usbThread1of1ForFork0_ieee80211_register_hw_#t~pre37| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:53:06,346 WARN L313 ript$VariableManager]: TermVariabe |thread_usbThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:53:06,346 WARN L313 ript$VariableManager]: TermVariabe |thread_usbThread1of1ForFork0_#t~switch43| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:53:06,346 WARN L313 ript$VariableManager]: TermVariabe |thread_usbThread1of1ForFork0_ldv_assert_#in~expression| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:53:06,346 WARN L313 ript$VariableManager]: TermVariabe |thread_usbThread1of1ForFork0_ath_ahb_probe_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:53:06,346 WARN L313 ript$VariableManager]: TermVariabe |thread_usbThread1of1ForFork0_ieee80211_deregister_hw_~#status~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:53:06,346 WARN L313 ript$VariableManager]: TermVariabe |thread_usbThread1of1ForFork0_ath_ahb_probe_#t~ret41| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:53:06,346 WARN L313 ript$VariableManager]: TermVariabe |thread_usbThread1of1ForFork0_ieee80211_register_hw_#t~nondet36| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:53:06,346 WARN L313 ript$VariableManager]: TermVariabe thread_usbThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:53:06,346 WARN L313 ript$VariableManager]: TermVariabe |thread_usbThread1of1ForFork0_ieee80211_register_hw_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:53:06,346 WARN L313 ript$VariableManager]: TermVariabe |thread_usbThread1of1ForFork0_ieee80211_deregister_hw_#t~nondet40.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:53:06,346 WARN L313 ript$VariableManager]: TermVariabe |thread_usbThread1of1ForFork0_ieee80211_register_hw_#t~nondet38| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:53:06,346 WARN L313 ript$VariableManager]: TermVariabe thread_usbThread1of1ForFork0_ldv_assert_~expression not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:53:06,350 WARN L313 ript$VariableManager]: TermVariabe |thread_ath9kThread1of1ForFork1_#t~switch35| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:53:06,350 WARN L313 ript$VariableManager]: TermVariabe |thread_ath9kThread1of1ForFork1_#t~nondet34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:53:06,350 WARN L313 ript$VariableManager]: TermVariabe |thread_ath9kThread1of1ForFork1_ath9k_flush_#t~nondet33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:53:06,350 WARN L313 ript$VariableManager]: TermVariabe |thread_ath9kThread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:53:06,351 WARN L313 ript$VariableManager]: TermVariabe thread_ath9kThread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:53:06,351 WARN L313 ript$VariableManager]: TermVariabe |thread_ath9kThread1of1ForFork1_ldv_assert_#in~expression| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:53:06,351 WARN L313 ript$VariableManager]: TermVariabe |thread_ath9kThread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:53:06,351 WARN L313 ript$VariableManager]: TermVariabe thread_ath9kThread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:53:06,351 WARN L313 ript$VariableManager]: TermVariabe thread_ath9kThread1of1ForFork1_ldv_assert_~expression not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:53:06,352 WARN L313 ript$VariableManager]: TermVariabe |thread_ath9kThread1of1ForFork1_#t~switch35| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:53:06,352 WARN L313 ript$VariableManager]: TermVariabe |thread_ath9kThread1of1ForFork1_#t~nondet34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:53:06,352 WARN L313 ript$VariableManager]: TermVariabe |thread_ath9kThread1of1ForFork1_ath9k_flush_#t~nondet33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:53:06,352 WARN L313 ript$VariableManager]: TermVariabe |thread_ath9kThread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:53:06,352 WARN L313 ript$VariableManager]: TermVariabe thread_ath9kThread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:53:06,353 WARN L313 ript$VariableManager]: TermVariabe |thread_ath9kThread1of1ForFork1_ldv_assert_#in~expression| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:53:06,353 WARN L313 ript$VariableManager]: TermVariabe |thread_ath9kThread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:53:06,353 WARN L313 ript$VariableManager]: TermVariabe thread_ath9kThread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:53:06,353 WARN L313 ript$VariableManager]: TermVariabe thread_ath9kThread1of1ForFork1_ldv_assert_~expression not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:53:06,370 INFO L149 ThreadInstanceAdder]: Constructed 9 joinOtherThreadTransitions. [2021-07-09 16:53:06,388 INFO L255 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2021-07-09 16:53:06,408 INFO L378 AbstractCegarLoop]: Interprodecural is true [2021-07-09 16:53:06,408 INFO L379 AbstractCegarLoop]: Hoare is false [2021-07-09 16:53:06,408 INFO L380 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-07-09 16:53:06,408 INFO L381 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-07-09 16:53:06,408 INFO L382 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-07-09 16:53:06,408 INFO L383 AbstractCegarLoop]: Difference is false [2021-07-09 16:53:06,408 INFO L384 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-07-09 16:53:06,408 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == ULTIMATE.start======== [2021-07-09 16:53:06,423 INFO L110 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 272 places, 308 transitions, 658 flow [2021-07-09 16:53:07,844 INFO L132 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 49363 states, 49324 states have (on average 3.254886059524775) internal successors, (160544), 49362 states have internal predecessors, (160544), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:53:07,913 INFO L276 IsEmpty]: Start isEmpty. Operand has 49363 states, 49324 states have (on average 3.254886059524775) internal successors, (160544), 49362 states have internal predecessors, (160544), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:53:07,918 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2021-07-09 16:53:07,918 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 16:53:07,918 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-09 16:53:07,919 INFO L430 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-09 16:53:07,922 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 16:53:07,922 INFO L82 PathProgramCache]: Analyzing trace with hash 1534712366, now seen corresponding path program 1 times [2021-07-09 16:53:07,927 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 16:53:07,927 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [241827247] [2021-07-09 16:53:07,928 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 16:53:08,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 16:53:08,268 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-09 16:53:08,269 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 16:53:08,269 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [241827247] [2021-07-09 16:53:08,270 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [241827247] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-09 16:53:08,270 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-09 16:53:08,270 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-07-09 16:53:08,271 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [17008221] [2021-07-09 16:53:08,274 INFO L462 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-07-09 16:53:08,274 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 16:53:08,283 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-07-09 16:53:08,284 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-07-09 16:53:08,369 INFO L87 Difference]: Start difference. First operand has 49363 states, 49324 states have (on average 3.254886059524775) internal successors, (160544), 49362 states have internal predecessors, (160544), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 5 states, 5 states have (on average 6.0) internal successors, (30), 5 states have internal predecessors, (30), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:53:09,284 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 16:53:09,284 INFO L93 Difference]: Finished difference Result 56050 states and 168832 transitions. [2021-07-09 16:53:09,285 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-07-09 16:53:09,286 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 6.0) internal successors, (30), 5 states have internal predecessors, (30), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 30 [2021-07-09 16:53:09,286 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 16:53:09,486 INFO L225 Difference]: With dead ends: 56050 [2021-07-09 16:53:09,486 INFO L226 Difference]: Without dead ends: 36590 [2021-07-09 16:53:09,487 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 35.5ms TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-07-09 16:53:09,851 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36590 states. [2021-07-09 16:53:10,806 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36590 to 32888. [2021-07-09 16:53:10,893 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 32888 states, 32869 states have (on average 2.9901731114423926) internal successors, (98284), 32887 states have internal predecessors, (98284), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:53:11,183 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32888 states to 32888 states and 98284 transitions. [2021-07-09 16:53:11,197 INFO L78 Accepts]: Start accepts. Automaton has 32888 states and 98284 transitions. Word has length 30 [2021-07-09 16:53:11,198 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 16:53:11,198 INFO L482 AbstractCegarLoop]: Abstraction has 32888 states and 98284 transitions. [2021-07-09 16:53:11,198 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 6.0) internal successors, (30), 5 states have internal predecessors, (30), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:53:11,198 INFO L276 IsEmpty]: Start isEmpty. Operand 32888 states and 98284 transitions. [2021-07-09 16:53:11,199 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2021-07-09 16:53:11,199 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 16:53:11,199 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-09 16:53:11,199 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-07-09 16:53:11,199 INFO L430 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-09 16:53:11,202 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 16:53:11,202 INFO L82 PathProgramCache]: Analyzing trace with hash -883186529, now seen corresponding path program 1 times [2021-07-09 16:53:11,202 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 16:53:11,202 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1759094332] [2021-07-09 16:53:11,202 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 16:53:11,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 16:53:11,491 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-09 16:53:11,491 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 16:53:11,491 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1759094332] [2021-07-09 16:53:11,491 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1759094332] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-09 16:53:11,492 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-09 16:53:11,492 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-07-09 16:53:11,492 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [91528033] [2021-07-09 16:53:11,493 INFO L462 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-07-09 16:53:11,493 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 16:53:11,493 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-07-09 16:53:11,493 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-07-09 16:53:11,493 INFO L87 Difference]: Start difference. First operand 32888 states and 98284 transitions. Second operand has 5 states, 5 states have (on average 7.6) internal successors, (38), 5 states have internal predecessors, (38), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:53:11,744 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 16:53:11,744 INFO L93 Difference]: Finished difference Result 32886 states and 98282 transitions. [2021-07-09 16:53:11,744 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-07-09 16:53:11,744 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 7.6) internal successors, (38), 5 states have internal predecessors, (38), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 38 [2021-07-09 16:53:11,745 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 16:53:11,839 INFO L225 Difference]: With dead ends: 32886 [2021-07-09 16:53:11,840 INFO L226 Difference]: Without dead ends: 32880 [2021-07-09 16:53:11,840 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 28.1ms TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-07-09 16:53:12,192 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32880 states. [2021-07-09 16:53:12,679 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32880 to 32880. [2021-07-09 16:53:12,721 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 32880 states, 32862 states have (on average 2.990566611892155) internal successors, (98276), 32879 states have internal predecessors, (98276), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:53:12,803 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32880 states to 32880 states and 98276 transitions. [2021-07-09 16:53:12,803 INFO L78 Accepts]: Start accepts. Automaton has 32880 states and 98276 transitions. Word has length 38 [2021-07-09 16:53:12,803 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 16:53:12,803 INFO L482 AbstractCegarLoop]: Abstraction has 32880 states and 98276 transitions. [2021-07-09 16:53:12,803 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 7.6) internal successors, (38), 5 states have internal predecessors, (38), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:53:12,803 INFO L276 IsEmpty]: Start isEmpty. Operand 32880 states and 98276 transitions. [2021-07-09 16:53:12,813 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2021-07-09 16:53:12,813 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 16:53:12,813 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-09 16:53:12,813 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-07-09 16:53:12,813 INFO L430 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-09 16:53:12,813 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 16:53:12,814 INFO L82 PathProgramCache]: Analyzing trace with hash -1524685272, now seen corresponding path program 1 times [2021-07-09 16:53:12,814 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 16:53:12,814 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1363720711] [2021-07-09 16:53:12,814 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 16:53:12,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 16:53:12,873 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-09 16:53:12,874 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 16:53:12,874 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1363720711] [2021-07-09 16:53:12,874 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1363720711] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-09 16:53:12,874 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-09 16:53:12,874 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-07-09 16:53:12,874 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [82504310] [2021-07-09 16:53:12,874 INFO L462 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-07-09 16:53:12,874 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 16:53:12,875 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-07-09 16:53:12,875 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-07-09 16:53:12,875 INFO L87 Difference]: Start difference. First operand 32880 states and 98276 transitions. Second operand has 5 states, 5 states have (on average 15.0) internal successors, (75), 5 states have internal predecessors, (75), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:53:13,351 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 16:53:13,352 INFO L93 Difference]: Finished difference Result 44005 states and 129304 transitions. [2021-07-09 16:53:13,352 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-07-09 16:53:13,352 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 15.0) internal successors, (75), 5 states have internal predecessors, (75), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 75 [2021-07-09 16:53:13,352 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 16:53:13,450 INFO L225 Difference]: With dead ends: 44005 [2021-07-09 16:53:13,450 INFO L226 Difference]: Without dead ends: 31260 [2021-07-09 16:53:13,450 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 29.7ms TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2021-07-09 16:53:13,615 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31260 states. [2021-07-09 16:53:14,287 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31260 to 31260. [2021-07-09 16:53:14,343 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 31260 states, 31244 states have (on average 2.9549033414415566) internal successors, (92323), 31259 states have internal predecessors, (92323), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:53:14,431 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31260 states to 31260 states and 92323 transitions. [2021-07-09 16:53:14,432 INFO L78 Accepts]: Start accepts. Automaton has 31260 states and 92323 transitions. Word has length 75 [2021-07-09 16:53:14,432 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 16:53:14,432 INFO L482 AbstractCegarLoop]: Abstraction has 31260 states and 92323 transitions. [2021-07-09 16:53:14,432 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 15.0) internal successors, (75), 5 states have internal predecessors, (75), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:53:14,432 INFO L276 IsEmpty]: Start isEmpty. Operand 31260 states and 92323 transitions. [2021-07-09 16:53:14,462 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2021-07-09 16:53:14,462 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 16:53:14,462 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-09 16:53:14,463 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-07-09 16:53:14,463 INFO L430 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-09 16:53:14,463 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 16:53:14,463 INFO L82 PathProgramCache]: Analyzing trace with hash 971792201, now seen corresponding path program 1 times [2021-07-09 16:53:14,463 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 16:53:14,463 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [499643849] [2021-07-09 16:53:14,464 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 16:53:14,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 16:53:14,539 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-09 16:53:14,539 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 16:53:14,539 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [499643849] [2021-07-09 16:53:14,539 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [499643849] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-09 16:53:14,539 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-09 16:53:14,539 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-07-09 16:53:14,540 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1874907187] [2021-07-09 16:53:14,540 INFO L462 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-07-09 16:53:14,540 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 16:53:14,541 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-07-09 16:53:14,541 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-07-09 16:53:14,541 INFO L87 Difference]: Start difference. First operand 31260 states and 92323 transitions. Second operand has 5 states, 5 states have (on average 20.0) internal successors, (100), 5 states have internal predecessors, (100), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:53:15,134 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 16:53:15,134 INFO L93 Difference]: Finished difference Result 75057 states and 222593 transitions. [2021-07-09 16:53:15,135 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-07-09 16:53:15,135 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 20.0) internal successors, (100), 5 states have internal predecessors, (100), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 100 [2021-07-09 16:53:15,135 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 16:53:15,376 INFO L225 Difference]: With dead ends: 75057 [2021-07-09 16:53:15,376 INFO L226 Difference]: Without dead ends: 75057 [2021-07-09 16:53:15,376 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 24.9ms TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-07-09 16:53:15,658 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 75057 states. [2021-07-09 16:53:16,582 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 75057 to 33705. [2021-07-09 16:53:16,627 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 33705 states, 33689 states have (on average 2.950903855857995) internal successors, (99413), 33704 states have internal predecessors, (99413), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:53:16,705 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33705 states to 33705 states and 99413 transitions. [2021-07-09 16:53:16,706 INFO L78 Accepts]: Start accepts. Automaton has 33705 states and 99413 transitions. Word has length 100 [2021-07-09 16:53:16,706 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 16:53:16,706 INFO L482 AbstractCegarLoop]: Abstraction has 33705 states and 99413 transitions. [2021-07-09 16:53:16,706 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 20.0) internal successors, (100), 5 states have internal predecessors, (100), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:53:16,706 INFO L276 IsEmpty]: Start isEmpty. Operand 33705 states and 99413 transitions. [2021-07-09 16:53:16,727 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2021-07-09 16:53:16,727 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 16:53:16,727 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-09 16:53:16,727 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-07-09 16:53:16,727 INFO L430 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-09 16:53:16,728 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 16:53:16,728 INFO L82 PathProgramCache]: Analyzing trace with hash 1964426025, now seen corresponding path program 1 times [2021-07-09 16:53:16,728 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 16:53:16,728 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1647875966] [2021-07-09 16:53:16,728 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 16:53:16,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 16:53:16,780 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-09 16:53:16,781 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 16:53:16,781 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1647875966] [2021-07-09 16:53:16,781 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1647875966] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-09 16:53:16,781 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-09 16:53:16,781 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-07-09 16:53:16,781 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1294238566] [2021-07-09 16:53:16,781 INFO L462 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-07-09 16:53:16,781 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 16:53:16,782 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-07-09 16:53:16,782 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-07-09 16:53:16,782 INFO L87 Difference]: Start difference. First operand 33705 states and 99413 transitions. Second operand has 5 states, 5 states have (on average 20.0) internal successors, (100), 5 states have internal predecessors, (100), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:53:17,272 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 16:53:17,273 INFO L93 Difference]: Finished difference Result 60687 states and 177757 transitions. [2021-07-09 16:53:17,281 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-07-09 16:53:17,281 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 20.0) internal successors, (100), 5 states have internal predecessors, (100), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 100 [2021-07-09 16:53:17,282 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 16:53:17,529 INFO L225 Difference]: With dead ends: 60687 [2021-07-09 16:53:17,529 INFO L226 Difference]: Without dead ends: 60687 [2021-07-09 16:53:17,530 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 22.3ms TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-07-09 16:53:17,849 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 60687 states. [2021-07-09 16:53:18,866 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 60687 to 36180. [2021-07-09 16:53:18,921 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 36180 states, 36164 states have (on average 2.9465214024997235) internal successors, (106558), 36179 states have internal predecessors, (106558), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:53:19,002 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36180 states to 36180 states and 106558 transitions. [2021-07-09 16:53:19,003 INFO L78 Accepts]: Start accepts. Automaton has 36180 states and 106558 transitions. Word has length 100 [2021-07-09 16:53:19,003 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 16:53:19,003 INFO L482 AbstractCegarLoop]: Abstraction has 36180 states and 106558 transitions. [2021-07-09 16:53:19,003 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 20.0) internal successors, (100), 5 states have internal predecessors, (100), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:53:19,003 INFO L276 IsEmpty]: Start isEmpty. Operand 36180 states and 106558 transitions. [2021-07-09 16:53:19,022 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2021-07-09 16:53:19,023 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 16:53:19,023 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-09 16:53:19,023 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-07-09 16:53:19,023 INFO L430 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-09 16:53:19,023 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 16:53:19,023 INFO L82 PathProgramCache]: Analyzing trace with hash -2004712147, now seen corresponding path program 1 times [2021-07-09 16:53:19,024 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 16:53:19,024 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2081903627] [2021-07-09 16:53:19,024 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 16:53:19,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 16:53:19,475 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-09 16:53:19,475 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 16:53:19,476 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2081903627] [2021-07-09 16:53:19,476 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2081903627] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-09 16:53:19,476 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-09 16:53:19,476 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-07-09 16:53:19,476 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1805112474] [2021-07-09 16:53:19,477 INFO L462 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-07-09 16:53:19,477 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 16:53:19,477 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-07-09 16:53:19,477 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=86, Unknown=0, NotChecked=0, Total=110 [2021-07-09 16:53:19,478 INFO L87 Difference]: Start difference. First operand 36180 states and 106558 transitions. Second operand has 11 states, 11 states have (on average 9.181818181818182) internal successors, (101), 11 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:53:20,525 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 16:53:20,525 INFO L93 Difference]: Finished difference Result 73692 states and 216010 transitions. [2021-07-09 16:53:20,526 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-07-09 16:53:20,526 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 9.181818181818182) internal successors, (101), 11 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 101 [2021-07-09 16:53:20,526 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 16:53:20,707 INFO L225 Difference]: With dead ends: 73692 [2021-07-09 16:53:20,707 INFO L226 Difference]: Without dead ends: 73584 [2021-07-09 16:53:20,708 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 83 ImplicationChecksByTransitivity, 414.6ms TimeCoverageRelationStatistics Valid=141, Invalid=459, Unknown=0, NotChecked=0, Total=600 [2021-07-09 16:53:21,395 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 73584 states. [2021-07-09 16:53:22,242 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 73584 to 37749. [2021-07-09 16:53:22,292 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 37749 states, 37733 states have (on average 2.9145310470940555) internal successors, (109974), 37748 states have internal predecessors, (109974), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:53:22,387 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37749 states to 37749 states and 109974 transitions. [2021-07-09 16:53:22,387 INFO L78 Accepts]: Start accepts. Automaton has 37749 states and 109974 transitions. Word has length 101 [2021-07-09 16:53:22,387 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 16:53:22,387 INFO L482 AbstractCegarLoop]: Abstraction has 37749 states and 109974 transitions. [2021-07-09 16:53:22,388 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 11 states, 11 states have (on average 9.181818181818182) internal successors, (101), 11 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:53:22,388 INFO L276 IsEmpty]: Start isEmpty. Operand 37749 states and 109974 transitions. [2021-07-09 16:53:22,413 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2021-07-09 16:53:22,413 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 16:53:22,414 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-09 16:53:22,414 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-07-09 16:53:22,414 INFO L430 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-09 16:53:22,414 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 16:53:22,414 INFO L82 PathProgramCache]: Analyzing trace with hash -192376311, now seen corresponding path program 2 times [2021-07-09 16:53:22,414 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 16:53:22,415 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [394219115] [2021-07-09 16:53:22,415 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 16:53:22,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 16:53:22,860 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-09 16:53:22,861 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 16:53:22,861 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [394219115] [2021-07-09 16:53:22,861 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [394219115] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-09 16:53:22,861 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-09 16:53:22,861 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-07-09 16:53:22,861 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [103006038] [2021-07-09 16:53:22,862 INFO L462 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-07-09 16:53:22,862 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 16:53:22,862 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-07-09 16:53:22,862 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=86, Unknown=0, NotChecked=0, Total=110 [2021-07-09 16:53:22,863 INFO L87 Difference]: Start difference. First operand 37749 states and 109974 transitions. Second operand has 11 states, 11 states have (on average 9.181818181818182) internal successors, (101), 11 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:53:23,683 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 16:53:23,683 INFO L93 Difference]: Finished difference Result 74785 states and 218414 transitions. [2021-07-09 16:53:23,683 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-07-09 16:53:23,684 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 9.181818181818182) internal successors, (101), 11 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 101 [2021-07-09 16:53:23,684 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 16:53:24,043 INFO L225 Difference]: With dead ends: 74785 [2021-07-09 16:53:24,043 INFO L226 Difference]: Without dead ends: 73597 [2021-07-09 16:53:24,043 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 84 ImplicationChecksByTransitivity, 332.6ms TimeCoverageRelationStatistics Valid=138, Invalid=462, Unknown=0, NotChecked=0, Total=600 [2021-07-09 16:53:24,322 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 73597 states. [2021-07-09 16:53:25,471 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 73597 to 48909. [2021-07-09 16:53:25,538 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 48909 states, 48893 states have (on average 2.9792403820587814) internal successors, (145664), 48908 states have internal predecessors, (145664), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:53:25,656 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48909 states to 48909 states and 145664 transitions. [2021-07-09 16:53:25,657 INFO L78 Accepts]: Start accepts. Automaton has 48909 states and 145664 transitions. Word has length 101 [2021-07-09 16:53:25,657 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 16:53:25,657 INFO L482 AbstractCegarLoop]: Abstraction has 48909 states and 145664 transitions. [2021-07-09 16:53:25,657 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 11 states, 11 states have (on average 9.181818181818182) internal successors, (101), 11 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:53:25,657 INFO L276 IsEmpty]: Start isEmpty. Operand 48909 states and 145664 transitions. [2021-07-09 16:53:25,680 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2021-07-09 16:53:25,681 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 16:53:25,681 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-09 16:53:25,681 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-07-09 16:53:25,681 INFO L430 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-09 16:53:25,681 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 16:53:25,681 INFO L82 PathProgramCache]: Analyzing trace with hash 259331575, now seen corresponding path program 3 times [2021-07-09 16:53:25,682 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 16:53:25,682 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1068986560] [2021-07-09 16:53:25,682 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 16:53:25,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 16:53:25,890 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-09 16:53:25,891 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 16:53:25,891 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1068986560] [2021-07-09 16:53:25,891 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1068986560] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-09 16:53:25,891 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-09 16:53:25,891 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-07-09 16:53:25,891 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [693252728] [2021-07-09 16:53:25,891 INFO L462 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-07-09 16:53:25,891 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 16:53:25,892 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-07-09 16:53:25,892 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2021-07-09 16:53:25,892 INFO L87 Difference]: Start difference. First operand 48909 states and 145664 transitions. Second operand has 8 states, 8 states have (on average 12.625) internal successors, (101), 8 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:53:26,527 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 16:53:26,527 INFO L93 Difference]: Finished difference Result 50495 states and 148965 transitions. [2021-07-09 16:53:26,528 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-07-09 16:53:26,528 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 12.625) internal successors, (101), 8 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 101 [2021-07-09 16:53:26,528 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 16:53:26,645 INFO L225 Difference]: With dead ends: 50495 [2021-07-09 16:53:26,645 INFO L226 Difference]: Without dead ends: 50387 [2021-07-09 16:53:26,646 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 199.5ms TimeCoverageRelationStatistics Valid=31, Invalid=101, Unknown=0, NotChecked=0, Total=132 [2021-07-09 16:53:26,872 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 50387 states. [2021-07-09 16:53:27,595 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 50387 to 48951. [2021-07-09 16:53:27,661 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 48951 states, 48935 states have (on average 2.9776642484928986) internal successors, (145712), 48950 states have internal predecessors, (145712), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:53:28,153 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48951 states to 48951 states and 145712 transitions. [2021-07-09 16:53:28,153 INFO L78 Accepts]: Start accepts. Automaton has 48951 states and 145712 transitions. Word has length 101 [2021-07-09 16:53:28,153 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 16:53:28,153 INFO L482 AbstractCegarLoop]: Abstraction has 48951 states and 145712 transitions. [2021-07-09 16:53:28,154 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 12.625) internal successors, (101), 8 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:53:28,154 INFO L276 IsEmpty]: Start isEmpty. Operand 48951 states and 145712 transitions. [2021-07-09 16:53:28,192 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 124 [2021-07-09 16:53:28,192 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 16:53:28,192 INFO L508 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-09 16:53:28,192 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-07-09 16:53:28,192 INFO L430 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-09 16:53:28,193 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 16:53:28,193 INFO L82 PathProgramCache]: Analyzing trace with hash 939732744, now seen corresponding path program 1 times [2021-07-09 16:53:28,193 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 16:53:28,193 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1045508880] [2021-07-09 16:53:28,208 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 16:53:28,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 16:53:28,313 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-09 16:53:28,313 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 16:53:28,313 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1045508880] [2021-07-09 16:53:28,314 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1045508880] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-09 16:53:28,314 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-09 16:53:28,314 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-07-09 16:53:28,314 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [969277110] [2021-07-09 16:53:28,314 INFO L462 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-07-09 16:53:28,314 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 16:53:28,314 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-07-09 16:53:28,314 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-07-09 16:53:28,315 INFO L87 Difference]: Start difference. First operand 48951 states and 145712 transitions. Second operand has 3 states, 3 states have (on average 41.0) internal successors, (123), 3 states have internal predecessors, (123), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:53:28,385 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 16:53:28,385 INFO L93 Difference]: Finished difference Result 17939 states and 52567 transitions. [2021-07-09 16:53:28,386 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-07-09 16:53:28,386 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 41.0) internal successors, (123), 3 states have internal predecessors, (123), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 123 [2021-07-09 16:53:28,386 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 16:53:28,419 INFO L225 Difference]: With dead ends: 17939 [2021-07-09 16:53:28,419 INFO L226 Difference]: Without dead ends: 17128 [2021-07-09 16:53:28,420 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.9ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-07-09 16:53:28,471 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17128 states. [2021-07-09 16:53:28,650 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17128 to 13201. [2021-07-09 16:53:28,666 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13201 states, 13199 states have (on average 2.923554814758694) internal successors, (38588), 13200 states have internal predecessors, (38588), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:53:28,693 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13201 states to 13201 states and 38588 transitions. [2021-07-09 16:53:28,694 INFO L78 Accepts]: Start accepts. Automaton has 13201 states and 38588 transitions. Word has length 123 [2021-07-09 16:53:28,694 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 16:53:28,694 INFO L482 AbstractCegarLoop]: Abstraction has 13201 states and 38588 transitions. [2021-07-09 16:53:28,694 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 41.0) internal successors, (123), 3 states have internal predecessors, (123), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:53:28,694 INFO L276 IsEmpty]: Start isEmpty. Operand 13201 states and 38588 transitions. [2021-07-09 16:53:28,714 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 174 [2021-07-09 16:53:28,714 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 16:53:28,714 INFO L508 BasicCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-09 16:53:28,714 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-07-09 16:53:28,714 INFO L430 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-09 16:53:28,714 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 16:53:28,715 INFO L82 PathProgramCache]: Analyzing trace with hash -298398024, now seen corresponding path program 1 times [2021-07-09 16:53:28,715 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 16:53:28,715 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1041942131] [2021-07-09 16:53:28,715 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 16:53:28,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 16:53:29,588 INFO L134 CoverageAnalysis]: Checked inductivity of 53 backedges. 3 proven. 44 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2021-07-09 16:53:29,589 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 16:53:29,589 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1041942131] [2021-07-09 16:53:29,589 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1041942131] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-09 16:53:29,589 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1455145190] [2021-07-09 16:53:29,589 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-09 16:53:29,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 16:53:29,749 INFO L263 TraceCheckSpWp]: Trace formula consists of 349 conjuncts, 19 conjunts are in the unsatisfiable core [2021-07-09 16:53:29,755 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-09 16:53:29,843 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2021-07-09 16:53:29,844 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 16:53:29,846 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 16:53:29,846 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-07-09 16:53:29,846 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:6, output treesize:5 [2021-07-09 16:53:29,882 INFO L354 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2021-07-09 16:53:29,882 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 11 treesize of output 11 [2021-07-09 16:53:29,884 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 16:53:29,900 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 16:53:29,900 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-07-09 16:53:29,900 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:11, output treesize:4 [2021-07-09 16:53:29,991 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2021-07-09 16:53:29,992 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 16:53:29,998 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 16:53:29,999 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-07-09 16:53:29,999 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:26, output treesize:23 [2021-07-09 16:53:30,100 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 16:53:30,113 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 25 [2021-07-09 16:53:30,115 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 16:53:30,121 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 16:53:30,122 INFO L550 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-07-09 16:53:30,122 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 4 variables, input treesize:50, output treesize:19 [2021-07-09 16:53:30,171 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 14 [2021-07-09 16:53:30,173 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 16:53:30,190 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 16:53:30,191 INFO L550 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-07-09 16:53:30,191 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:26, output treesize:11 [2021-07-09 16:53:30,427 INFO L134 CoverageAnalysis]: Checked inductivity of 53 backedges. 3 proven. 44 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2021-07-09 16:53:30,428 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1455145190] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-09 16:53:30,428 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-07-09 16:53:30,428 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 12] total 15 [2021-07-09 16:53:30,428 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1846390466] [2021-07-09 16:53:30,429 INFO L462 AbstractCegarLoop]: Interpolant automaton has 15 states [2021-07-09 16:53:30,429 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 16:53:30,429 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2021-07-09 16:53:30,429 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=175, Unknown=0, NotChecked=0, Total=210 [2021-07-09 16:53:30,429 INFO L87 Difference]: Start difference. First operand 13201 states and 38588 transitions. Second operand has 15 states, 15 states have (on average 18.0) internal successors, (270), 15 states have internal predecessors, (270), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:53:31,059 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 16:53:31,059 INFO L93 Difference]: Finished difference Result 19724 states and 56851 transitions. [2021-07-09 16:53:31,060 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-07-09 16:53:31,060 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 18.0) internal successors, (270), 15 states have internal predecessors, (270), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 173 [2021-07-09 16:53:31,060 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 16:53:31,103 INFO L225 Difference]: With dead ends: 19724 [2021-07-09 16:53:31,103 INFO L226 Difference]: Without dead ends: 19724 [2021-07-09 16:53:31,104 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 198 GetRequests, 168 SyntacticMatches, 4 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 131 ImplicationChecksByTransitivity, 391.8ms TimeCoverageRelationStatistics Valid=126, Invalid=630, Unknown=0, NotChecked=0, Total=756 [2021-07-09 16:53:31,165 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19724 states. [2021-07-09 16:53:31,459 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19724 to 18411. [2021-07-09 16:53:31,483 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18411 states, 18409 states have (on average 2.9407355098049868) internal successors, (54136), 18410 states have internal predecessors, (54136), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:53:31,600 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18411 states to 18411 states and 54136 transitions. [2021-07-09 16:53:31,600 INFO L78 Accepts]: Start accepts. Automaton has 18411 states and 54136 transitions. Word has length 173 [2021-07-09 16:53:31,601 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 16:53:31,601 INFO L482 AbstractCegarLoop]: Abstraction has 18411 states and 54136 transitions. [2021-07-09 16:53:31,601 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 15 states, 15 states have (on average 18.0) internal successors, (270), 15 states have internal predecessors, (270), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:53:31,601 INFO L276 IsEmpty]: Start isEmpty. Operand 18411 states and 54136 transitions. [2021-07-09 16:53:31,644 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 174 [2021-07-09 16:53:31,644 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 16:53:31,644 INFO L508 BasicCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-09 16:53:31,863 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2021-07-09 16:53:31,863 INFO L430 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-09 16:53:31,864 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 16:53:31,864 INFO L82 PathProgramCache]: Analyzing trace with hash 778792456, now seen corresponding path program 2 times [2021-07-09 16:53:31,864 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 16:53:31,864 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1271244377] [2021-07-09 16:53:31,864 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 16:53:31,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 16:53:32,405 INFO L134 CoverageAnalysis]: Checked inductivity of 53 backedges. 3 proven. 50 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-09 16:53:32,405 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 16:53:32,405 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1271244377] [2021-07-09 16:53:32,405 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1271244377] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-09 16:53:32,405 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1013259464] [2021-07-09 16:53:32,406 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-09 16:53:32,571 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-07-09 16:53:32,572 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-07-09 16:53:32,573 INFO L263 TraceCheckSpWp]: Trace formula consists of 349 conjuncts, 27 conjunts are in the unsatisfiable core [2021-07-09 16:53:32,587 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-09 16:53:32,603 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2021-07-09 16:53:32,604 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 16:53:32,605 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 16:53:32,606 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-07-09 16:53:32,606 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:6, output treesize:5 [2021-07-09 16:53:32,624 INFO L354 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2021-07-09 16:53:32,624 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 17 treesize of output 21 [2021-07-09 16:53:32,626 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 16:53:32,629 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 16:53:32,630 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-07-09 16:53:32,630 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:17, output treesize:15 [2021-07-09 16:53:32,670 INFO L354 Elim1Store]: treesize reduction 28, result has 28.2 percent of original size [2021-07-09 16:53:32,670 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 17 treesize of output 22 [2021-07-09 16:53:32,672 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 16:53:32,677 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 16:53:32,678 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2021-07-09 16:53:32,678 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:21, output treesize:20 [2021-07-09 16:53:32,790 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2021-07-09 16:53:32,791 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 16:53:32,797 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 16:53:32,797 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-07-09 16:53:32,797 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:28, output treesize:24 [2021-07-09 16:53:32,921 WARN L205 SmtUtils]: Spent 122.00 ms on a formula simplification that was a NOOP. DAG size: 18 [2021-07-09 16:53:33,063 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 20 [2021-07-09 16:53:33,065 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 16:53:33,072 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 16:53:33,075 INFO L550 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2021-07-09 16:53:33,075 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 4 variables, input treesize:35, output treesize:24 [2021-07-09 16:53:33,237 INFO L354 Elim1Store]: treesize reduction 36, result has 34.5 percent of original size [2021-07-09 16:53:33,238 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 22 treesize of output 33 [2021-07-09 16:53:33,246 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 16:53:33,256 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 16:53:33,261 INFO L550 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-1 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2021-07-09 16:53:33,262 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:35, output treesize:37 [2021-07-09 16:53:33,808 INFO L354 Elim1Store]: treesize reduction 12, result has 52.0 percent of original size [2021-07-09 16:53:33,809 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 21 treesize of output 25 [2021-07-09 16:53:33,811 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 16:53:33,820 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 16:53:33,822 INFO L550 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-07-09 16:53:33,822 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:42, output treesize:14 [2021-07-09 16:53:33,851 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 13 [2021-07-09 16:53:33,852 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 16:53:33,855 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 16:53:33,857 INFO L550 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-07-09 16:53:33,857 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:29, output treesize:9 [2021-07-09 16:53:33,875 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 9 [2021-07-09 16:53:33,876 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 16:53:33,877 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 16:53:33,877 INFO L550 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-07-09 16:53:33,878 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:17, output treesize:5 [2021-07-09 16:53:33,988 INFO L134 CoverageAnalysis]: Checked inductivity of 53 backedges. 3 proven. 50 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-09 16:53:33,988 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1013259464] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-09 16:53:33,988 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-07-09 16:53:33,988 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 15] total 25 [2021-07-09 16:53:33,988 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [160432230] [2021-07-09 16:53:33,989 INFO L462 AbstractCegarLoop]: Interpolant automaton has 25 states [2021-07-09 16:53:33,989 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 16:53:33,989 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-07-09 16:53:33,989 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=90, Invalid=510, Unknown=0, NotChecked=0, Total=600 [2021-07-09 16:53:33,989 INFO L87 Difference]: Start difference. First operand 18411 states and 54136 transitions. Second operand has 25 states, 25 states have (on average 13.0) internal successors, (325), 25 states have internal predecessors, (325), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:53:35,688 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 16:53:35,688 INFO L93 Difference]: Finished difference Result 30792 states and 88547 transitions. [2021-07-09 16:53:35,689 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2021-07-09 16:53:35,689 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 13.0) internal successors, (325), 25 states have internal predecessors, (325), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 173 [2021-07-09 16:53:35,689 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 16:53:35,754 INFO L225 Difference]: With dead ends: 30792 [2021-07-09 16:53:35,755 INFO L226 Difference]: Without dead ends: 30792 [2021-07-09 16:53:35,755 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 214 GetRequests, 163 SyntacticMatches, 4 SemanticMatches, 47 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 532 ImplicationChecksByTransitivity, 1279.1ms TimeCoverageRelationStatistics Valid=411, Invalid=1941, Unknown=0, NotChecked=0, Total=2352 [2021-07-09 16:53:35,838 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30792 states. [2021-07-09 16:53:36,289 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30792 to 18731. [2021-07-09 16:53:36,313 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18731 states, 18729 states have (on average 2.9267980137754286) internal successors, (54816), 18730 states have internal predecessors, (54816), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:53:36,355 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18731 states to 18731 states and 54816 transitions. [2021-07-09 16:53:36,355 INFO L78 Accepts]: Start accepts. Automaton has 18731 states and 54816 transitions. Word has length 173 [2021-07-09 16:53:36,356 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 16:53:36,356 INFO L482 AbstractCegarLoop]: Abstraction has 18731 states and 54816 transitions. [2021-07-09 16:53:36,356 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 25 states, 25 states have (on average 13.0) internal successors, (325), 25 states have internal predecessors, (325), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:53:36,356 INFO L276 IsEmpty]: Start isEmpty. Operand 18731 states and 54816 transitions. [2021-07-09 16:53:36,385 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 174 [2021-07-09 16:53:36,385 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 16:53:36,385 INFO L508 BasicCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-09 16:53:36,590 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-09 16:53:36,590 INFO L430 AbstractCegarLoop]: === Iteration 12 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-09 16:53:36,590 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 16:53:36,590 INFO L82 PathProgramCache]: Analyzing trace with hash -2017169274, now seen corresponding path program 3 times [2021-07-09 16:53:36,591 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 16:53:36,591 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1248676035] [2021-07-09 16:53:36,591 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 16:53:36,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 16:53:37,208 INFO L134 CoverageAnalysis]: Checked inductivity of 53 backedges. 3 proven. 50 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-09 16:53:37,208 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 16:53:37,209 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1248676035] [2021-07-09 16:53:37,209 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1248676035] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-09 16:53:37,209 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1398816653] [2021-07-09 16:53:37,209 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-09 16:53:37,354 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2021-07-09 16:53:37,354 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-07-09 16:53:37,356 INFO L263 TraceCheckSpWp]: Trace formula consists of 349 conjuncts, 29 conjunts are in the unsatisfiable core [2021-07-09 16:53:37,358 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-09 16:53:37,373 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2021-07-09 16:53:37,374 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 16:53:37,375 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 16:53:37,376 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-07-09 16:53:37,376 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:6, output treesize:5 [2021-07-09 16:53:37,392 INFO L354 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2021-07-09 16:53:37,392 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 17 treesize of output 21 [2021-07-09 16:53:37,393 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 16:53:37,397 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 16:53:37,398 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-07-09 16:53:37,398 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:17, output treesize:15 [2021-07-09 16:53:37,453 INFO L354 Elim1Store]: treesize reduction 28, result has 28.2 percent of original size [2021-07-09 16:53:37,453 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 17 treesize of output 22 [2021-07-09 16:53:37,455 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 16:53:37,461 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 16:53:37,462 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2021-07-09 16:53:37,462 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:28, output treesize:27 [2021-07-09 16:53:37,599 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 20 [2021-07-09 16:53:37,600 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 16:53:37,607 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 16:53:37,607 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-07-09 16:53:37,607 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:35, output treesize:31 [2021-07-09 16:53:37,707 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 23 [2021-07-09 16:53:37,709 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 16:53:37,715 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 16:53:37,717 INFO L550 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2021-07-09 16:53:37,717 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 4 variables, input treesize:42, output treesize:24 [2021-07-09 16:53:37,839 INFO L354 Elim1Store]: treesize reduction 36, result has 34.5 percent of original size [2021-07-09 16:53:37,839 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 22 treesize of output 33 [2021-07-09 16:53:37,841 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 16:53:37,850 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 16:53:37,853 INFO L550 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-1 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2021-07-09 16:53:37,853 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:35, output treesize:37 [2021-07-09 16:53:38,521 INFO L354 Elim1Store]: treesize reduction 12, result has 52.0 percent of original size [2021-07-09 16:53:38,521 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 21 treesize of output 25 [2021-07-09 16:53:38,523 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 16:53:38,532 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 16:53:38,533 INFO L550 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-07-09 16:53:38,533 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:42, output treesize:14 [2021-07-09 16:53:38,565 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 13 [2021-07-09 16:53:38,566 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 16:53:38,569 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 16:53:38,570 INFO L550 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-07-09 16:53:38,570 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:29, output treesize:9 [2021-07-09 16:53:38,638 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 9 [2021-07-09 16:53:38,639 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 16:53:38,640 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 16:53:38,640 INFO L550 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-07-09 16:53:38,641 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:17, output treesize:5 [2021-07-09 16:53:38,723 INFO L134 CoverageAnalysis]: Checked inductivity of 53 backedges. 3 proven. 50 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-09 16:53:38,724 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1398816653] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-09 16:53:38,724 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-07-09 16:53:38,724 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 16] total 27 [2021-07-09 16:53:38,724 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1648029509] [2021-07-09 16:53:38,724 INFO L462 AbstractCegarLoop]: Interpolant automaton has 27 states [2021-07-09 16:53:38,724 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 16:53:38,725 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2021-07-09 16:53:38,725 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=105, Invalid=597, Unknown=0, NotChecked=0, Total=702 [2021-07-09 16:53:38,725 INFO L87 Difference]: Start difference. First operand 18731 states and 54816 transitions. Second operand has 27 states, 27 states have (on average 12.037037037037036) internal successors, (325), 27 states have internal predecessors, (325), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:53:40,493 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 16:53:40,493 INFO L93 Difference]: Finished difference Result 30782 states and 88559 transitions. [2021-07-09 16:53:40,494 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2021-07-09 16:53:40,494 INFO L78 Accepts]: Start accepts. Automaton has has 27 states, 27 states have (on average 12.037037037037036) internal successors, (325), 27 states have internal predecessors, (325), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 173 [2021-07-09 16:53:40,494 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 16:53:40,559 INFO L225 Difference]: With dead ends: 30782 [2021-07-09 16:53:40,559 INFO L226 Difference]: Without dead ends: 30782 [2021-07-09 16:53:40,560 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 214 GetRequests, 162 SyntacticMatches, 4 SemanticMatches, 48 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 541 ImplicationChecksByTransitivity, 1382.4ms TimeCoverageRelationStatistics Valid=397, Invalid=2053, Unknown=0, NotChecked=0, Total=2450 [2021-07-09 16:53:40,641 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30782 states. [2021-07-09 16:53:40,953 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30782 to 18761. [2021-07-09 16:53:40,980 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18761 states, 18759 states have (on average 2.9253158483927715) internal successors, (54876), 18760 states have internal predecessors, (54876), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:53:41,024 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18761 states to 18761 states and 54876 transitions. [2021-07-09 16:53:41,024 INFO L78 Accepts]: Start accepts. Automaton has 18761 states and 54876 transitions. Word has length 173 [2021-07-09 16:53:41,024 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 16:53:41,025 INFO L482 AbstractCegarLoop]: Abstraction has 18761 states and 54876 transitions. [2021-07-09 16:53:41,025 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 27 states, 27 states have (on average 12.037037037037036) internal successors, (325), 27 states have internal predecessors, (325), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:53:41,025 INFO L276 IsEmpty]: Start isEmpty. Operand 18761 states and 54876 transitions. [2021-07-09 16:53:41,054 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 174 [2021-07-09 16:53:41,054 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 16:53:41,054 INFO L508 BasicCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-09 16:53:41,268 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2021-07-09 16:53:41,269 INFO L430 AbstractCegarLoop]: === Iteration 13 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-09 16:53:41,269 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 16:53:41,269 INFO L82 PathProgramCache]: Analyzing trace with hash -1356104994, now seen corresponding path program 4 times [2021-07-09 16:53:41,269 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 16:53:41,270 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1434120388] [2021-07-09 16:53:41,270 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 16:53:41,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 16:53:41,691 INFO L134 CoverageAnalysis]: Checked inductivity of 53 backedges. 3 proven. 50 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-09 16:53:41,691 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 16:53:41,692 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1434120388] [2021-07-09 16:53:41,692 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1434120388] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-09 16:53:41,692 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [604123658] [2021-07-09 16:53:41,692 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-09 16:53:41,824 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-07-09 16:53:41,824 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-07-09 16:53:41,826 INFO L263 TraceCheckSpWp]: Trace formula consists of 349 conjuncts, 30 conjunts are in the unsatisfiable core [2021-07-09 16:53:41,828 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-09 16:53:41,841 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2021-07-09 16:53:41,842 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 16:53:41,843 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 16:53:41,844 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-07-09 16:53:41,844 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:6, output treesize:5 [2021-07-09 16:53:41,859 INFO L354 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2021-07-09 16:53:41,860 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 17 treesize of output 21 [2021-07-09 16:53:41,862 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 16:53:41,866 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 16:53:41,866 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-07-09 16:53:41,867 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:17, output treesize:15 [2021-07-09 16:53:41,910 INFO L354 Elim1Store]: treesize reduction 36, result has 34.5 percent of original size [2021-07-09 16:53:41,911 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 22 treesize of output 33 [2021-07-09 16:53:41,912 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 16:53:41,919 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 16:53:41,921 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2021-07-09 16:53:41,921 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:26, output treesize:28 [2021-07-09 16:53:42,151 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2021-07-09 16:53:42,152 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 16:53:42,161 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 16:53:42,162 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2021-07-09 16:53:42,162 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:41, output treesize:37 [2021-07-09 16:53:42,347 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 20 [2021-07-09 16:53:42,348 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 16:53:42,360 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 16:53:42,362 INFO L550 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2021-07-09 16:53:42,362 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:48, output treesize:37 [2021-07-09 16:53:42,447 INFO L354 Elim1Store]: treesize reduction 54, result has 34.1 percent of original size [2021-07-09 16:53:42,447 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 27 treesize of output 45 [2021-07-09 16:53:42,449 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 16:53:42,464 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 16:53:42,468 INFO L550 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-1 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2021-07-09 16:53:42,468 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:48, output treesize:54 [2021-07-09 16:53:43,003 INFO L354 Elim1Store]: treesize reduction 16, result has 51.5 percent of original size [2021-07-09 16:53:43,004 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 6 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 4 case distinctions, treesize of input 26 treesize of output 32 [2021-07-09 16:53:43,008 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 16:53:43,024 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 16:53:43,025 INFO L550 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-07-09 16:53:43,026 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:59, output treesize:22 [2021-07-09 16:53:43,061 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 13 [2021-07-09 16:53:43,062 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 16:53:43,067 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 16:53:43,070 INFO L550 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-07-09 16:53:43,070 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:37, output treesize:14 [2021-07-09 16:53:43,133 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 16:53:43,135 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 25 [2021-07-09 16:53:43,136 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 16:53:43,142 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 16:53:43,144 INFO L550 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2021-07-09 16:53:43,144 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:50, output treesize:30 [2021-07-09 16:53:43,249 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 17 [2021-07-09 16:53:43,250 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 16:53:43,254 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 16:53:43,255 INFO L550 ElimStorePlain]: Start of recursive call 1: 4 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-07-09 16:53:43,255 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 5 variables, input treesize:45, output treesize:11 [2021-07-09 16:53:43,321 INFO L134 CoverageAnalysis]: Checked inductivity of 53 backedges. 3 proven. 50 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-09 16:53:43,321 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [604123658] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-09 16:53:43,321 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-07-09 16:53:43,321 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 16] total 26 [2021-07-09 16:53:43,323 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [329293237] [2021-07-09 16:53:43,324 INFO L462 AbstractCegarLoop]: Interpolant automaton has 26 states [2021-07-09 16:53:43,324 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 16:53:43,324 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2021-07-09 16:53:43,325 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=101, Invalid=549, Unknown=0, NotChecked=0, Total=650 [2021-07-09 16:53:43,325 INFO L87 Difference]: Start difference. First operand 18761 states and 54876 transitions. Second operand has 26 states, 26 states have (on average 11.576923076923077) internal successors, (301), 26 states have internal predecessors, (301), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:53:44,771 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 16:53:44,771 INFO L93 Difference]: Finished difference Result 30755 states and 88506 transitions. [2021-07-09 16:53:44,771 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2021-07-09 16:53:44,772 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 11.576923076923077) internal successors, (301), 26 states have internal predecessors, (301), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 173 [2021-07-09 16:53:44,772 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 16:53:44,842 INFO L225 Difference]: With dead ends: 30755 [2021-07-09 16:53:44,842 INFO L226 Difference]: Without dead ends: 30755 [2021-07-09 16:53:44,843 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 210 GetRequests, 163 SyntacticMatches, 5 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 417 ImplicationChecksByTransitivity, 1094.1ms TimeCoverageRelationStatistics Valid=333, Invalid=1559, Unknown=0, NotChecked=0, Total=1892 [2021-07-09 16:53:44,931 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30755 states. [2021-07-09 16:53:45,305 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30755 to 22121. [2021-07-09 16:53:45,336 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22121 states, 22119 states have (on average 2.943894389438944) internal successors, (65116), 22120 states have internal predecessors, (65116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:53:45,389 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22121 states to 22121 states and 65116 transitions. [2021-07-09 16:53:45,390 INFO L78 Accepts]: Start accepts. Automaton has 22121 states and 65116 transitions. Word has length 173 [2021-07-09 16:53:45,390 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 16:53:45,390 INFO L482 AbstractCegarLoop]: Abstraction has 22121 states and 65116 transitions. [2021-07-09 16:53:45,390 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 26 states, 26 states have (on average 11.576923076923077) internal successors, (301), 26 states have internal predecessors, (301), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:53:45,390 INFO L276 IsEmpty]: Start isEmpty. Operand 22121 states and 65116 transitions. [2021-07-09 16:53:45,420 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 174 [2021-07-09 16:53:45,420 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 16:53:45,420 INFO L508 BasicCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-09 16:53:45,639 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12,5 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-09 16:53:45,639 INFO L430 AbstractCegarLoop]: === Iteration 14 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-09 16:53:45,639 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 16:53:45,639 INFO L82 PathProgramCache]: Analyzing trace with hash -2055858248, now seen corresponding path program 5 times [2021-07-09 16:53:45,639 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 16:53:45,639 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1343483923] [2021-07-09 16:53:45,640 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 16:53:45,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 16:53:46,218 INFO L134 CoverageAnalysis]: Checked inductivity of 53 backedges. 3 proven. 44 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2021-07-09 16:53:46,218 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 16:53:46,218 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1343483923] [2021-07-09 16:53:46,218 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1343483923] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-09 16:53:46,218 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2023824646] [2021-07-09 16:53:46,218 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-09 16:53:46,362 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 3 check-sat command(s) [2021-07-09 16:53:46,362 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-07-09 16:53:46,364 INFO L263 TraceCheckSpWp]: Trace formula consists of 349 conjuncts, 15 conjunts are in the unsatisfiable core [2021-07-09 16:53:46,366 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-09 16:53:46,415 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2021-07-09 16:53:46,416 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 16:53:46,420 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 16:53:46,420 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-07-09 16:53:46,421 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:22, output treesize:19 [2021-07-09 16:53:46,463 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 14 [2021-07-09 16:53:46,464 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 16:53:46,467 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 16:53:46,468 INFO L550 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-07-09 16:53:46,468 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:26, output treesize:11 [2021-07-09 16:53:46,660 INFO L134 CoverageAnalysis]: Checked inductivity of 53 backedges. 3 proven. 44 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2021-07-09 16:53:46,660 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2023824646] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-09 16:53:46,660 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-07-09 16:53:46,660 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 13 [2021-07-09 16:53:46,660 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1624971693] [2021-07-09 16:53:46,661 INFO L462 AbstractCegarLoop]: Interpolant automaton has 13 states [2021-07-09 16:53:46,661 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 16:53:46,661 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-07-09 16:53:46,661 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=129, Unknown=0, NotChecked=0, Total=156 [2021-07-09 16:53:46,662 INFO L87 Difference]: Start difference. First operand 22121 states and 65116 transitions. Second operand has 13 states, 13 states have (on average 20.153846153846153) internal successors, (262), 13 states have internal predecessors, (262), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:53:47,183 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 16:53:47,183 INFO L93 Difference]: Finished difference Result 24588 states and 70173 transitions. [2021-07-09 16:53:47,183 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-07-09 16:53:47,184 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 20.153846153846153) internal successors, (262), 13 states have internal predecessors, (262), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 173 [2021-07-09 16:53:47,184 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 16:53:47,233 INFO L225 Difference]: With dead ends: 24588 [2021-07-09 16:53:47,234 INFO L226 Difference]: Without dead ends: 24588 [2021-07-09 16:53:47,234 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 191 GetRequests, 169 SyntacticMatches, 1 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 65 ImplicationChecksByTransitivity, 435.4ms TimeCoverageRelationStatistics Valid=92, Invalid=414, Unknown=0, NotChecked=0, Total=506 [2021-07-09 16:53:47,443 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24588 states. [2021-07-09 16:53:47,687 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24588 to 22144. [2021-07-09 16:53:47,718 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22144 states, 22142 states have (on average 2.9420558215156714) internal successors, (65143), 22143 states have internal predecessors, (65143), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:53:47,771 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22144 states to 22144 states and 65143 transitions. [2021-07-09 16:53:47,771 INFO L78 Accepts]: Start accepts. Automaton has 22144 states and 65143 transitions. Word has length 173 [2021-07-09 16:53:47,772 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 16:53:47,772 INFO L482 AbstractCegarLoop]: Abstraction has 22144 states and 65143 transitions. [2021-07-09 16:53:47,772 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 13 states, 13 states have (on average 20.153846153846153) internal successors, (262), 13 states have internal predecessors, (262), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:53:47,772 INFO L276 IsEmpty]: Start isEmpty. Operand 22144 states and 65143 transitions. [2021-07-09 16:53:47,808 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 246 [2021-07-09 16:53:47,808 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 16:53:47,808 INFO L508 BasicCegarLoop]: trace histogram [5, 5, 5, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-09 16:53:48,025 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2021-07-09 16:53:48,026 INFO L430 AbstractCegarLoop]: === Iteration 15 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-09 16:53:48,026 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 16:53:48,026 INFO L82 PathProgramCache]: Analyzing trace with hash 943752515, now seen corresponding path program 6 times [2021-07-09 16:53:48,027 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 16:53:48,027 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1106001616] [2021-07-09 16:53:48,027 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 16:53:48,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 16:53:48,512 INFO L134 CoverageAnalysis]: Checked inductivity of 190 backedges. 6 proven. 172 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2021-07-09 16:53:48,513 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 16:53:48,513 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1106001616] [2021-07-09 16:53:48,513 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1106001616] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-09 16:53:48,513 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1537660373] [2021-07-09 16:53:48,513 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-09 16:53:48,921 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 5 check-sat command(s) [2021-07-09 16:53:48,921 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-07-09 16:53:48,923 INFO L263 TraceCheckSpWp]: Trace formula consists of 475 conjuncts, 21 conjunts are in the unsatisfiable core [2021-07-09 16:53:48,925 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-09 16:53:48,937 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2021-07-09 16:53:48,937 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 16:53:48,939 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 16:53:48,939 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-07-09 16:53:48,939 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:6, output treesize:5 [2021-07-09 16:53:48,948 INFO L354 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2021-07-09 16:53:48,948 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 11 treesize of output 11 [2021-07-09 16:53:48,950 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 16:53:48,951 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 16:53:48,951 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-07-09 16:53:48,951 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:11, output treesize:4 [2021-07-09 16:53:48,989 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2021-07-09 16:53:48,990 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 16:53:48,995 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 16:53:48,996 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-07-09 16:53:48,996 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:26, output treesize:23 [2021-07-09 16:53:49,038 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 16:53:49,040 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 25 [2021-07-09 16:53:49,041 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 16:53:49,046 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 16:53:49,047 INFO L550 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-07-09 16:53:49,047 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 4 variables, input treesize:50, output treesize:19 [2021-07-09 16:53:49,078 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 14 [2021-07-09 16:53:49,079 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 16:53:49,082 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 16:53:49,082 INFO L550 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-07-09 16:53:49,082 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:26, output treesize:11 [2021-07-09 16:53:49,375 INFO L134 CoverageAnalysis]: Checked inductivity of 190 backedges. 6 proven. 172 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2021-07-09 16:53:49,375 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1537660373] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-09 16:53:49,375 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-07-09 16:53:49,375 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 13] total 17 [2021-07-09 16:53:49,375 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [830474518] [2021-07-09 16:53:49,376 INFO L462 AbstractCegarLoop]: Interpolant automaton has 17 states [2021-07-09 16:53:49,376 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 16:53:49,376 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2021-07-09 16:53:49,376 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=232, Unknown=0, NotChecked=0, Total=272 [2021-07-09 16:53:49,377 INFO L87 Difference]: Start difference. First operand 22144 states and 65143 transitions. Second operand has 17 states, 17 states have (on average 23.764705882352942) internal successors, (404), 17 states have internal predecessors, (404), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:53:50,323 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 16:53:50,323 INFO L93 Difference]: Finished difference Result 24585 states and 70170 transitions. [2021-07-09 16:53:50,323 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-07-09 16:53:50,323 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 23.764705882352942) internal successors, (404), 17 states have internal predecessors, (404), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 245 [2021-07-09 16:53:50,324 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 16:53:50,372 INFO L225 Difference]: With dead ends: 24585 [2021-07-09 16:53:50,372 INFO L226 Difference]: Without dead ends: 24585 [2021-07-09 16:53:50,373 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 276 GetRequests, 240 SyntacticMatches, 4 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 216 ImplicationChecksByTransitivity, 612.5ms TimeCoverageRelationStatistics Valid=163, Invalid=959, Unknown=0, NotChecked=0, Total=1122 [2021-07-09 16:53:50,438 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24585 states. [2021-07-09 16:53:50,694 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24585 to 22934. [2021-07-09 16:53:50,725 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22934 states, 22932 states have (on average 2.9125675911390196) internal successors, (66791), 22933 states have internal predecessors, (66791), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:53:50,776 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22934 states to 22934 states and 66791 transitions. [2021-07-09 16:53:50,776 INFO L78 Accepts]: Start accepts. Automaton has 22934 states and 66791 transitions. Word has length 245 [2021-07-09 16:53:50,777 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 16:53:50,777 INFO L482 AbstractCegarLoop]: Abstraction has 22934 states and 66791 transitions. [2021-07-09 16:53:50,777 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 17 states, 17 states have (on average 23.764705882352942) internal successors, (404), 17 states have internal predecessors, (404), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:53:50,777 INFO L276 IsEmpty]: Start isEmpty. Operand 22934 states and 66791 transitions. [2021-07-09 16:53:50,812 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 246 [2021-07-09 16:53:50,812 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 16:53:50,812 INFO L508 BasicCegarLoop]: trace histogram [5, 5, 5, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-09 16:53:51,029 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14,7 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-09 16:53:51,029 INFO L430 AbstractCegarLoop]: === Iteration 16 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-09 16:53:51,029 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 16:53:51,029 INFO L82 PathProgramCache]: Analyzing trace with hash -56208237, now seen corresponding path program 7 times [2021-07-09 16:53:51,029 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 16:53:51,030 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [87094424] [2021-07-09 16:53:51,030 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 16:53:51,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 16:53:51,706 INFO L134 CoverageAnalysis]: Checked inductivity of 190 backedges. 6 proven. 178 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2021-07-09 16:53:51,707 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 16:53:51,707 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [87094424] [2021-07-09 16:53:51,707 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [87094424] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-09 16:53:51,707 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [633566662] [2021-07-09 16:53:51,707 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 8 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-09 16:53:51,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 16:53:51,854 INFO L263 TraceCheckSpWp]: Trace formula consists of 475 conjuncts, 35 conjunts are in the unsatisfiable core [2021-07-09 16:53:51,857 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-09 16:53:51,868 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2021-07-09 16:53:51,869 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 16:53:51,870 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 16:53:51,871 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-07-09 16:53:51,871 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:6, output treesize:5 [2021-07-09 16:53:51,886 INFO L354 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2021-07-09 16:53:51,886 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 17 treesize of output 21 [2021-07-09 16:53:51,888 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 16:53:51,891 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 16:53:51,892 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-07-09 16:53:51,892 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:17, output treesize:15 [2021-07-09 16:53:51,934 INFO L354 Elim1Store]: treesize reduction 36, result has 34.5 percent of original size [2021-07-09 16:53:51,934 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 22 treesize of output 33 [2021-07-09 16:53:51,935 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 16:53:51,942 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 16:53:51,944 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2021-07-09 16:53:51,944 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:26, output treesize:28 [2021-07-09 16:53:52,171 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2021-07-09 16:53:52,173 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 16:53:52,182 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 16:53:52,184 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2021-07-09 16:53:52,184 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:41, output treesize:37 [2021-07-09 16:53:52,374 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 20 [2021-07-09 16:53:52,452 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 16:53:52,463 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 16:53:52,467 INFO L550 ElimStorePlain]: Start of recursive call 1: 4 dim-0 vars, 1 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2021-07-09 16:53:52,467 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 5 variables, input treesize:48, output treesize:37 [2021-07-09 16:53:52,619 INFO L354 Elim1Store]: treesize reduction 54, result has 34.1 percent of original size [2021-07-09 16:53:52,619 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 27 treesize of output 45 [2021-07-09 16:53:52,623 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 16:53:52,638 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 16:53:52,643 INFO L550 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-1 vars, End of recursive call: 3 dim-0 vars, and 1 xjuncts. [2021-07-09 16:53:52,643 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 4 variables, input treesize:48, output treesize:54 [2021-07-09 16:53:53,362 INFO L354 Elim1Store]: treesize reduction 16, result has 51.5 percent of original size [2021-07-09 16:53:53,362 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 6 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 4 case distinctions, treesize of input 26 treesize of output 32 [2021-07-09 16:53:53,364 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 16:53:53,378 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 16:53:53,380 INFO L550 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-07-09 16:53:53,380 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 4 variables, input treesize:59, output treesize:14 [2021-07-09 16:53:53,415 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 13 [2021-07-09 16:53:53,416 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 16:53:53,419 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 16:53:53,420 INFO L550 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-07-09 16:53:53,420 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:29, output treesize:9 [2021-07-09 16:53:53,442 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 9 [2021-07-09 16:53:53,443 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 16:53:53,444 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 16:53:53,444 INFO L550 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-07-09 16:53:53,444 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:17, output treesize:5 [2021-07-09 16:53:53,670 INFO L134 CoverageAnalysis]: Checked inductivity of 190 backedges. 6 proven. 178 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2021-07-09 16:53:53,671 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [633566662] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-09 16:53:53,671 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-07-09 16:53:53,671 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 19] total 31 [2021-07-09 16:53:53,671 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1217326428] [2021-07-09 16:53:53,671 INFO L462 AbstractCegarLoop]: Interpolant automaton has 31 states [2021-07-09 16:53:53,671 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 16:53:53,672 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 31 interpolants. [2021-07-09 16:53:53,672 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=123, Invalid=807, Unknown=0, NotChecked=0, Total=930 [2021-07-09 16:53:53,672 INFO L87 Difference]: Start difference. First operand 22934 states and 66791 transitions. Second operand has 31 states, 31 states have (on average 14.806451612903226) internal successors, (459), 31 states have internal predecessors, (459), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:53:55,865 WARN L205 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 46 [2021-07-09 16:53:56,067 WARN L205 SmtUtils]: Spent 178.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 49 [2021-07-09 16:53:57,130 WARN L205 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 49 [2021-07-09 16:53:57,520 WARN L205 SmtUtils]: Spent 128.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 65 [2021-07-09 16:53:58,082 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 16:53:58,082 INFO L93 Difference]: Finished difference Result 33212 states and 93654 transitions. [2021-07-09 16:53:58,082 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 47 states. [2021-07-09 16:53:58,082 INFO L78 Accepts]: Start accepts. Automaton has has 31 states, 31 states have (on average 14.806451612903226) internal successors, (459), 31 states have internal predecessors, (459), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 245 [2021-07-09 16:53:58,083 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 16:53:58,156 INFO L225 Difference]: With dead ends: 33212 [2021-07-09 16:53:58,157 INFO L226 Difference]: Without dead ends: 33212 [2021-07-09 16:53:58,158 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 302 GetRequests, 231 SyntacticMatches, 3 SemanticMatches, 68 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1304 ImplicationChecksByTransitivity, 2804.4ms TimeCoverageRelationStatistics Valid=707, Invalid=4123, Unknown=0, NotChecked=0, Total=4830 [2021-07-09 16:53:58,253 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33212 states. [2021-07-09 16:53:58,598 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33212 to 22934. [2021-07-09 16:53:58,630 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22934 states, 22932 states have (on average 2.9125675911390196) internal successors, (66791), 22933 states have internal predecessors, (66791), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:53:58,684 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22934 states to 22934 states and 66791 transitions. [2021-07-09 16:53:58,684 INFO L78 Accepts]: Start accepts. Automaton has 22934 states and 66791 transitions. Word has length 245 [2021-07-09 16:53:58,685 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 16:53:58,685 INFO L482 AbstractCegarLoop]: Abstraction has 22934 states and 66791 transitions. [2021-07-09 16:53:58,685 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 31 states, 31 states have (on average 14.806451612903226) internal successors, (459), 31 states have internal predecessors, (459), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:53:58,685 INFO L276 IsEmpty]: Start isEmpty. Operand 22934 states and 66791 transitions. [2021-07-09 16:53:58,721 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 246 [2021-07-09 16:53:58,721 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 16:53:58,721 INFO L508 BasicCegarLoop]: trace histogram [5, 5, 5, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-09 16:53:58,939 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2021-07-09 16:53:58,939 INFO L430 AbstractCegarLoop]: === Iteration 17 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-09 16:53:58,940 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 16:53:58,940 INFO L82 PathProgramCache]: Analyzing trace with hash -1263990511, now seen corresponding path program 8 times [2021-07-09 16:53:58,940 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 16:53:58,940 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1016254975] [2021-07-09 16:53:58,940 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 16:53:58,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 16:53:59,836 INFO L134 CoverageAnalysis]: Checked inductivity of 190 backedges. 6 proven. 178 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2021-07-09 16:53:59,837 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 16:53:59,837 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1016254975] [2021-07-09 16:53:59,837 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1016254975] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-09 16:53:59,837 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1217994416] [2021-07-09 16:53:59,837 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 9 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 9 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-09 16:53:59,985 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-07-09 16:53:59,986 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-07-09 16:53:59,987 INFO L263 TraceCheckSpWp]: Trace formula consists of 475 conjuncts, 35 conjunts are in the unsatisfiable core [2021-07-09 16:53:59,990 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-09 16:54:00,004 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2021-07-09 16:54:00,005 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 16:54:00,006 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 16:54:00,006 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-07-09 16:54:00,006 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:6, output treesize:5 [2021-07-09 16:54:00,021 INFO L354 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2021-07-09 16:54:00,022 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 17 treesize of output 21 [2021-07-09 16:54:00,023 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 16:54:00,026 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 16:54:00,027 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-07-09 16:54:00,027 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:17, output treesize:15 [2021-07-09 16:54:00,071 INFO L354 Elim1Store]: treesize reduction 36, result has 34.5 percent of original size [2021-07-09 16:54:00,071 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 22 treesize of output 33 [2021-07-09 16:54:00,072 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 16:54:00,092 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 16:54:00,094 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2021-07-09 16:54:00,094 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:26, output treesize:28 [2021-07-09 16:54:00,335 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2021-07-09 16:54:00,336 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 16:54:00,346 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 16:54:00,353 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2021-07-09 16:54:00,354 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:41, output treesize:37 [2021-07-09 16:54:00,641 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 20 [2021-07-09 16:54:00,642 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 16:54:00,653 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 16:54:00,675 INFO L550 ElimStorePlain]: Start of recursive call 1: 4 dim-0 vars, 1 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2021-07-09 16:54:00,675 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 5 variables, input treesize:48, output treesize:37 [2021-07-09 16:54:00,879 INFO L354 Elim1Store]: treesize reduction 54, result has 34.1 percent of original size [2021-07-09 16:54:00,880 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 27 treesize of output 45 [2021-07-09 16:54:00,881 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 16:54:00,897 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 16:54:00,901 INFO L550 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-1 vars, End of recursive call: 3 dim-0 vars, and 1 xjuncts. [2021-07-09 16:54:00,902 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 4 variables, input treesize:48, output treesize:54 [2021-07-09 16:54:01,064 WARN L205 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 36 DAG size of output: 36 [2021-07-09 16:54:01,745 INFO L354 Elim1Store]: treesize reduction 16, result has 51.5 percent of original size [2021-07-09 16:54:01,745 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 6 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 4 case distinctions, treesize of input 26 treesize of output 32 [2021-07-09 16:54:01,747 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 16:54:01,761 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 16:54:01,763 INFO L550 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-07-09 16:54:01,763 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 4 variables, input treesize:59, output treesize:14 [2021-07-09 16:54:01,795 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 13 [2021-07-09 16:54:01,796 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 16:54:01,799 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 16:54:01,800 INFO L550 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-07-09 16:54:01,800 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:29, output treesize:9 [2021-07-09 16:54:01,869 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 9 [2021-07-09 16:54:01,870 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 16:54:01,871 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 16:54:01,872 INFO L550 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-07-09 16:54:01,872 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:17, output treesize:5 [2021-07-09 16:54:02,051 INFO L134 CoverageAnalysis]: Checked inductivity of 190 backedges. 6 proven. 178 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2021-07-09 16:54:02,052 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1217994416] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-09 16:54:02,052 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-07-09 16:54:02,052 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 19] total 31 [2021-07-09 16:54:02,052 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2026323855] [2021-07-09 16:54:02,052 INFO L462 AbstractCegarLoop]: Interpolant automaton has 31 states [2021-07-09 16:54:02,053 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 16:54:02,053 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 31 interpolants. [2021-07-09 16:54:02,053 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=123, Invalid=807, Unknown=0, NotChecked=0, Total=930 [2021-07-09 16:54:02,053 INFO L87 Difference]: Start difference. First operand 22934 states and 66791 transitions. Second operand has 31 states, 31 states have (on average 14.806451612903226) internal successors, (459), 31 states have internal predecessors, (459), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:54:02,786 WARN L205 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 46 [2021-07-09 16:54:03,779 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 16:54:03,779 INFO L93 Difference]: Finished difference Result 32361 states and 91937 transitions. [2021-07-09 16:54:03,779 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2021-07-09 16:54:03,779 INFO L78 Accepts]: Start accepts. Automaton has has 31 states, 31 states have (on average 14.806451612903226) internal successors, (459), 31 states have internal predecessors, (459), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 245 [2021-07-09 16:54:03,780 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 16:54:03,844 INFO L225 Difference]: With dead ends: 32361 [2021-07-09 16:54:03,845 INFO L226 Difference]: Without dead ends: 32361 [2021-07-09 16:54:03,845 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 286 GetRequests, 233 SyntacticMatches, 3 SemanticMatches, 50 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 618 ImplicationChecksByTransitivity, 1813.9ms TimeCoverageRelationStatistics Valid=382, Invalid=2270, Unknown=0, NotChecked=0, Total=2652 [2021-07-09 16:54:03,934 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32361 states. [2021-07-09 16:54:04,317 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32361 to 27354. [2021-07-09 16:54:04,353 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27354 states, 27352 states have (on average 2.9500950570342206) internal successors, (80691), 27353 states have internal predecessors, (80691), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:54:04,427 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27354 states to 27354 states and 80691 transitions. [2021-07-09 16:54:04,427 INFO L78 Accepts]: Start accepts. Automaton has 27354 states and 80691 transitions. Word has length 245 [2021-07-09 16:54:04,428 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 16:54:04,428 INFO L482 AbstractCegarLoop]: Abstraction has 27354 states and 80691 transitions. [2021-07-09 16:54:04,428 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 31 states, 31 states have (on average 14.806451612903226) internal successors, (459), 31 states have internal predecessors, (459), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:54:04,428 INFO L276 IsEmpty]: Start isEmpty. Operand 27354 states and 80691 transitions. [2021-07-09 16:54:04,657 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 246 [2021-07-09 16:54:04,657 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 16:54:04,657 INFO L508 BasicCegarLoop]: trace histogram [5, 5, 5, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-09 16:54:04,873 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2021-07-09 16:54:04,873 INFO L430 AbstractCegarLoop]: === Iteration 18 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-09 16:54:04,873 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 16:54:04,874 INFO L82 PathProgramCache]: Analyzing trace with hash 2102233565, now seen corresponding path program 9 times [2021-07-09 16:54:04,874 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 16:54:04,874 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1650870994] [2021-07-09 16:54:04,874 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 16:54:04,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 16:54:05,593 INFO L134 CoverageAnalysis]: Checked inductivity of 190 backedges. 6 proven. 184 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-09 16:54:05,594 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 16:54:05,594 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1650870994] [2021-07-09 16:54:05,594 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1650870994] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-09 16:54:05,594 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [867557809] [2021-07-09 16:54:05,594 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 10 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 10 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-09 16:54:05,912 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 5 check-sat command(s) [2021-07-09 16:54:05,913 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-07-09 16:54:05,915 INFO L263 TraceCheckSpWp]: Trace formula consists of 475 conjuncts, 37 conjunts are in the unsatisfiable core [2021-07-09 16:54:05,917 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-09 16:54:05,929 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2021-07-09 16:54:05,930 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 16:54:05,931 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 16:54:05,931 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-07-09 16:54:05,931 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:6, output treesize:5 [2021-07-09 16:54:05,946 INFO L354 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2021-07-09 16:54:05,947 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 17 treesize of output 21 [2021-07-09 16:54:05,948 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 16:54:05,952 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 16:54:05,952 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-07-09 16:54:05,952 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:17, output treesize:15 [2021-07-09 16:54:05,996 INFO L354 Elim1Store]: treesize reduction 36, result has 34.5 percent of original size [2021-07-09 16:54:05,997 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 22 treesize of output 33 [2021-07-09 16:54:05,998 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 16:54:06,005 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 16:54:06,006 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2021-07-09 16:54:06,006 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:26, output treesize:28 [2021-07-09 16:54:06,238 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2021-07-09 16:54:06,239 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 16:54:06,249 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 16:54:06,250 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2021-07-09 16:54:06,251 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:41, output treesize:37 [2021-07-09 16:54:06,508 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 20 [2021-07-09 16:54:06,509 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 16:54:06,520 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 16:54:06,522 INFO L550 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2021-07-09 16:54:06,522 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:48, output treesize:37 [2021-07-09 16:54:06,598 INFO L354 Elim1Store]: treesize reduction 54, result has 34.1 percent of original size [2021-07-09 16:54:06,599 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 27 treesize of output 45 [2021-07-09 16:54:06,600 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 16:54:06,616 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 16:54:06,619 INFO L550 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-1 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2021-07-09 16:54:06,619 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:48, output treesize:54 [2021-07-09 16:54:07,146 INFO L354 Elim1Store]: treesize reduction 72, result has 33.9 percent of original size [2021-07-09 16:54:07,146 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 6 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 8 case distinctions, treesize of input 32 treesize of output 57 [2021-07-09 16:54:07,148 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 16:54:07,171 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 16:54:07,175 INFO L550 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-1 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2021-07-09 16:54:07,176 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:65, output treesize:75 [2021-07-09 16:54:07,282 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 7 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 13 [2021-07-09 16:54:07,283 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 16:54:07,306 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 16:54:07,310 INFO L550 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2021-07-09 16:54:07,310 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 4 variables, input treesize:90, output treesize:75 [2021-07-09 16:54:07,349 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 10 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 41 [2021-07-09 16:54:07,350 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 16:54:07,388 INFO L628 ElimStorePlain]: treesize reduction 16, result has 78.7 percent of original size [2021-07-09 16:54:07,392 INFO L550 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-1 vars, End of recursive call: 3 dim-0 vars, and 1 xjuncts. [2021-07-09 16:54:07,392 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 4 variables, input treesize:81, output treesize:59 [2021-07-09 16:54:07,847 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 5 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 20 [2021-07-09 16:54:07,848 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 16:54:07,865 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 16:54:07,869 INFO L550 ElimStorePlain]: Start of recursive call 1: 6 dim-0 vars, 1 dim-2 vars, End of recursive call: 4 dim-0 vars, and 1 xjuncts. [2021-07-09 16:54:07,869 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 7 variables, input treesize:70, output treesize:59 [2021-07-09 16:54:08,460 WARN L313 ript$VariableManager]: TermVariabe |thread_usbThread1of1ForFork0_ieee80211_deregister_hw_~#status~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:54:08,505 INFO L354 Elim1Store]: treesize reduction 40, result has 45.2 percent of original size [2021-07-09 16:54:08,506 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 6 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 9 case distinctions, treesize of input 31 treesize of output 51 [2021-07-09 16:54:08,509 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 16:54:08,530 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 16:54:08,532 INFO L550 ElimStorePlain]: Start of recursive call 1: 4 dim-0 vars, 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-07-09 16:54:08,532 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 5 variables, input treesize:64, output treesize:14 [2021-07-09 16:54:08,568 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 13 [2021-07-09 16:54:08,569 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 16:54:08,572 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 16:54:08,573 INFO L550 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-07-09 16:54:08,573 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:29, output treesize:9 [2021-07-09 16:54:08,600 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 9 [2021-07-09 16:54:08,601 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 16:54:08,602 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 16:54:08,602 INFO L550 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-07-09 16:54:08,602 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:17, output treesize:5 [2021-07-09 16:54:08,747 INFO L134 CoverageAnalysis]: Checked inductivity of 190 backedges. 12 proven. 178 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-09 16:54:08,748 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [867557809] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-09 16:54:08,748 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-07-09 16:54:08,748 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [18, 19] total 34 [2021-07-09 16:54:08,748 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [184720116] [2021-07-09 16:54:08,748 INFO L462 AbstractCegarLoop]: Interpolant automaton has 34 states [2021-07-09 16:54:08,748 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 16:54:08,749 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 34 interpolants. [2021-07-09 16:54:08,749 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=145, Invalid=977, Unknown=0, NotChecked=0, Total=1122 [2021-07-09 16:54:08,749 INFO L87 Difference]: Start difference. First operand 27354 states and 80691 transitions. Second operand has 34 states, 34 states have (on average 13.794117647058824) internal successors, (469), 34 states have internal predecessors, (469), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:54:10,998 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 16:54:10,998 INFO L93 Difference]: Finished difference Result 35620 states and 100136 transitions. [2021-07-09 16:54:10,999 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2021-07-09 16:54:10,999 INFO L78 Accepts]: Start accepts. Automaton has has 34 states, 34 states have (on average 13.794117647058824) internal successors, (469), 34 states have internal predecessors, (469), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 245 [2021-07-09 16:54:10,999 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 16:54:11,076 INFO L225 Difference]: With dead ends: 35620 [2021-07-09 16:54:11,076 INFO L226 Difference]: Without dead ends: 35620 [2021-07-09 16:54:11,078 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 291 GetRequests, 232 SyntacticMatches, 4 SemanticMatches, 55 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 723 ImplicationChecksByTransitivity, 1993.6ms TimeCoverageRelationStatistics Valid=439, Invalid=2753, Unknown=0, NotChecked=0, Total=3192 [2021-07-09 16:54:11,168 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35620 states. [2021-07-09 16:54:11,733 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35620 to 28979. [2021-07-09 16:54:11,777 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28979 states, 28977 states have (on average 2.9563101770369604) internal successors, (85665), 28978 states have internal predecessors, (85665), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:54:11,844 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28979 states to 28979 states and 85665 transitions. [2021-07-09 16:54:11,845 INFO L78 Accepts]: Start accepts. Automaton has 28979 states and 85665 transitions. Word has length 245 [2021-07-09 16:54:11,845 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 16:54:11,845 INFO L482 AbstractCegarLoop]: Abstraction has 28979 states and 85665 transitions. [2021-07-09 16:54:11,845 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 34 states, 34 states have (on average 13.794117647058824) internal successors, (469), 34 states have internal predecessors, (469), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:54:11,845 INFO L276 IsEmpty]: Start isEmpty. Operand 28979 states and 85665 transitions. [2021-07-09 16:54:11,893 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 246 [2021-07-09 16:54:11,893 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 16:54:11,894 INFO L508 BasicCegarLoop]: trace histogram [5, 5, 5, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-09 16:54:12,112 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,10 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-09 16:54:12,113 INFO L430 AbstractCegarLoop]: === Iteration 19 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-09 16:54:12,114 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 16:54:12,114 INFO L82 PathProgramCache]: Analyzing trace with hash -693728165, now seen corresponding path program 10 times [2021-07-09 16:54:12,114 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 16:54:12,114 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [97729975] [2021-07-09 16:54:12,115 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 16:54:12,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 16:54:12,982 INFO L134 CoverageAnalysis]: Checked inductivity of 190 backedges. 6 proven. 178 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2021-07-09 16:54:12,982 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 16:54:12,982 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [97729975] [2021-07-09 16:54:12,982 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [97729975] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-09 16:54:12,982 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [525793636] [2021-07-09 16:54:12,983 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 11 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 11 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-09 16:54:13,161 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-07-09 16:54:13,161 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-07-09 16:54:13,163 INFO L263 TraceCheckSpWp]: Trace formula consists of 475 conjuncts, 37 conjunts are in the unsatisfiable core [2021-07-09 16:54:13,165 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-09 16:54:13,177 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2021-07-09 16:54:13,178 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 16:54:13,179 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 16:54:13,179 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-07-09 16:54:13,179 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:6, output treesize:5 [2021-07-09 16:54:13,194 INFO L354 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2021-07-09 16:54:13,194 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 17 treesize of output 21 [2021-07-09 16:54:13,196 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 16:54:13,199 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 16:54:13,200 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-07-09 16:54:13,200 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:17, output treesize:15 [2021-07-09 16:54:13,244 INFO L354 Elim1Store]: treesize reduction 36, result has 34.5 percent of original size [2021-07-09 16:54:13,244 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 22 treesize of output 33 [2021-07-09 16:54:13,246 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 16:54:13,253 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 16:54:13,254 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2021-07-09 16:54:13,254 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:26, output treesize:28 [2021-07-09 16:54:13,470 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2021-07-09 16:54:13,471 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 16:54:13,480 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 16:54:13,486 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2021-07-09 16:54:13,486 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:41, output treesize:37 [2021-07-09 16:54:13,707 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 20 [2021-07-09 16:54:13,708 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 16:54:13,716 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 16:54:13,717 INFO L550 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2021-07-09 16:54:13,717 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:48, output treesize:37 [2021-07-09 16:54:13,873 INFO L354 Elim1Store]: treesize reduction 54, result has 34.1 percent of original size [2021-07-09 16:54:13,874 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 27 treesize of output 45 [2021-07-09 16:54:13,875 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 16:54:13,885 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 16:54:13,888 INFO L550 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-1 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2021-07-09 16:54:13,888 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:48, output treesize:54 [2021-07-09 16:54:14,267 INFO L354 Elim1Store]: treesize reduction 72, result has 33.9 percent of original size [2021-07-09 16:54:14,267 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 6 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 8 case distinctions, treesize of input 32 treesize of output 57 [2021-07-09 16:54:14,269 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 16:54:14,288 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 16:54:14,291 INFO L550 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-1 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2021-07-09 16:54:14,291 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:65, output treesize:75 [2021-07-09 16:54:14,388 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 7 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 13 [2021-07-09 16:54:14,388 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 16:54:14,405 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 16:54:14,408 INFO L550 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2021-07-09 16:54:14,408 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 4 variables, input treesize:90, output treesize:75 [2021-07-09 16:54:14,461 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 10 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 41 [2021-07-09 16:54:14,462 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 16:54:14,488 INFO L628 ElimStorePlain]: treesize reduction 16, result has 78.7 percent of original size [2021-07-09 16:54:14,491 INFO L550 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-1 vars, End of recursive call: 3 dim-0 vars, and 1 xjuncts. [2021-07-09 16:54:14,491 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 4 variables, input treesize:81, output treesize:59 [2021-07-09 16:54:14,913 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 5 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 20 [2021-07-09 16:54:14,914 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 16:54:14,931 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 16:54:14,936 INFO L550 ElimStorePlain]: Start of recursive call 1: 6 dim-0 vars, 1 dim-2 vars, End of recursive call: 4 dim-0 vars, and 1 xjuncts. [2021-07-09 16:54:14,936 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 7 variables, input treesize:70, output treesize:59 [2021-07-09 16:54:15,478 WARN L313 ript$VariableManager]: TermVariabe |thread_usbThread1of1ForFork0_ieee80211_deregister_hw_~#status~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:54:15,522 INFO L354 Elim1Store]: treesize reduction 40, result has 45.2 percent of original size [2021-07-09 16:54:15,522 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 6 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 9 case distinctions, treesize of input 31 treesize of output 51 [2021-07-09 16:54:15,525 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 16:54:15,546 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 16:54:15,548 INFO L550 ElimStorePlain]: Start of recursive call 1: 4 dim-0 vars, 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-07-09 16:54:15,548 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 5 variables, input treesize:64, output treesize:14 [2021-07-09 16:54:15,582 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 13 [2021-07-09 16:54:15,583 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 16:54:15,586 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 16:54:15,587 INFO L550 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-07-09 16:54:15,587 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:29, output treesize:9 [2021-07-09 16:54:15,658 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 9 [2021-07-09 16:54:15,659 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 16:54:15,660 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 16:54:15,660 INFO L550 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-07-09 16:54:15,661 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:17, output treesize:5 [2021-07-09 16:54:15,747 INFO L134 CoverageAnalysis]: Checked inductivity of 190 backedges. 12 proven. 178 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-09 16:54:15,747 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [525793636] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-09 16:54:15,747 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-07-09 16:54:15,747 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 19] total 32 [2021-07-09 16:54:15,747 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2058029322] [2021-07-09 16:54:15,748 INFO L462 AbstractCegarLoop]: Interpolant automaton has 32 states [2021-07-09 16:54:15,748 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 16:54:15,748 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 32 interpolants. [2021-07-09 16:54:15,748 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=143, Invalid=849, Unknown=0, NotChecked=0, Total=992 [2021-07-09 16:54:15,748 INFO L87 Difference]: Start difference. First operand 28979 states and 85665 transitions. Second operand has 32 states, 32 states have (on average 14.5) internal successors, (464), 32 states have internal predecessors, (464), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:54:18,075 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 16:54:18,075 INFO L93 Difference]: Finished difference Result 42224 states and 121103 transitions. [2021-07-09 16:54:18,076 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2021-07-09 16:54:18,076 INFO L78 Accepts]: Start accepts. Automaton has has 32 states, 32 states have (on average 14.5) internal successors, (464), 32 states have internal predecessors, (464), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 245 [2021-07-09 16:54:18,076 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 16:54:18,160 INFO L225 Difference]: With dead ends: 42224 [2021-07-09 16:54:18,160 INFO L226 Difference]: Without dead ends: 42224 [2021-07-09 16:54:18,161 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 293 GetRequests, 233 SyntacticMatches, 6 SemanticMatches, 54 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 699 ImplicationChecksByTransitivity, 1626.6ms TimeCoverageRelationStatistics Valid=424, Invalid=2656, Unknown=0, NotChecked=0, Total=3080 [2021-07-09 16:54:18,266 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42224 states. [2021-07-09 16:54:18,790 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42224 to 29329. [2021-07-09 16:54:18,831 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 29329 states, 29327 states have (on average 2.946261124560985) internal successors, (86405), 29328 states have internal predecessors, (86405), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:54:18,906 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29329 states to 29329 states and 86405 transitions. [2021-07-09 16:54:18,906 INFO L78 Accepts]: Start accepts. Automaton has 29329 states and 86405 transitions. Word has length 245 [2021-07-09 16:54:18,924 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 16:54:18,925 INFO L482 AbstractCegarLoop]: Abstraction has 29329 states and 86405 transitions. [2021-07-09 16:54:18,925 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 32 states, 32 states have (on average 14.5) internal successors, (464), 32 states have internal predecessors, (464), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:54:18,925 INFO L276 IsEmpty]: Start isEmpty. Operand 29329 states and 86405 transitions. [2021-07-09 16:54:19,026 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 246 [2021-07-09 16:54:19,027 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 16:54:19,027 INFO L508 BasicCegarLoop]: trace histogram [5, 5, 5, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-09 16:54:19,261 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20,11 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-09 16:54:19,262 INFO L430 AbstractCegarLoop]: === Iteration 20 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-09 16:54:19,263 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 16:54:19,263 INFO L82 PathProgramCache]: Analyzing trace with hash -32663885, now seen corresponding path program 11 times [2021-07-09 16:54:19,263 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 16:54:19,263 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1987240626] [2021-07-09 16:54:19,263 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 16:54:19,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 16:54:19,930 INFO L134 CoverageAnalysis]: Checked inductivity of 190 backedges. 6 proven. 178 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2021-07-09 16:54:19,930 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 16:54:19,930 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1987240626] [2021-07-09 16:54:19,931 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1987240626] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-09 16:54:19,931 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [748492881] [2021-07-09 16:54:19,931 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 12 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 12 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-09 16:54:20,076 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 5 check-sat command(s) [2021-07-09 16:54:20,077 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-07-09 16:54:20,078 INFO L263 TraceCheckSpWp]: Trace formula consists of 475 conjuncts, 38 conjunts are in the unsatisfiable core [2021-07-09 16:54:20,081 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-09 16:54:20,093 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2021-07-09 16:54:20,093 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 16:54:20,094 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 16:54:20,095 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-07-09 16:54:20,095 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:6, output treesize:5 [2021-07-09 16:54:20,113 INFO L354 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2021-07-09 16:54:20,113 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 17 treesize of output 21 [2021-07-09 16:54:20,117 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 16:54:20,120 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 16:54:20,121 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-07-09 16:54:20,121 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:17, output treesize:15 [2021-07-09 16:54:20,167 INFO L354 Elim1Store]: treesize reduction 36, result has 34.5 percent of original size [2021-07-09 16:54:20,167 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 22 treesize of output 33 [2021-07-09 16:54:20,169 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 16:54:20,176 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 16:54:20,177 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2021-07-09 16:54:20,177 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:26, output treesize:28 [2021-07-09 16:54:20,418 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2021-07-09 16:54:20,419 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 16:54:20,427 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 16:54:20,428 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2021-07-09 16:54:20,429 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:41, output treesize:37 [2021-07-09 16:54:20,627 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 20 [2021-07-09 16:54:20,628 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 16:54:20,639 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 16:54:20,640 INFO L550 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2021-07-09 16:54:20,640 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:48, output treesize:37 [2021-07-09 16:54:20,727 INFO L354 Elim1Store]: treesize reduction 54, result has 34.1 percent of original size [2021-07-09 16:54:20,727 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 27 treesize of output 45 [2021-07-09 16:54:20,729 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 16:54:20,744 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 16:54:20,747 INFO L550 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-1 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2021-07-09 16:54:20,748 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:48, output treesize:54 [2021-07-09 16:54:21,329 WARN L205 SmtUtils]: Spent 140.00 ms on a formula simplification that was a NOOP. DAG size: 21 [2021-07-09 16:54:21,387 INFO L354 Elim1Store]: treesize reduction 72, result has 33.9 percent of original size [2021-07-09 16:54:21,388 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 6 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 8 case distinctions, treesize of input 32 treesize of output 57 [2021-07-09 16:54:21,389 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 16:54:21,412 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 16:54:21,415 INFO L550 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-1 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2021-07-09 16:54:21,415 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:65, output treesize:75 [2021-07-09 16:54:21,516 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 7 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 13 [2021-07-09 16:54:21,517 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 16:54:21,542 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 16:54:21,546 INFO L550 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2021-07-09 16:54:21,546 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 4 variables, input treesize:90, output treesize:75 [2021-07-09 16:54:21,584 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 10 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 41 [2021-07-09 16:54:21,586 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 16:54:21,623 INFO L628 ElimStorePlain]: treesize reduction 16, result has 78.7 percent of original size [2021-07-09 16:54:21,627 INFO L550 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-1 vars, End of recursive call: 3 dim-0 vars, and 1 xjuncts. [2021-07-09 16:54:21,627 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 4 variables, input treesize:81, output treesize:59 [2021-07-09 16:54:22,027 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 5 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 20 [2021-07-09 16:54:22,028 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 16:54:22,048 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 16:54:22,052 INFO L550 ElimStorePlain]: Start of recursive call 1: 4 dim-0 vars, 1 dim-2 vars, End of recursive call: 3 dim-0 vars, and 1 xjuncts. [2021-07-09 16:54:22,052 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 5 variables, input treesize:70, output treesize:59 [2021-07-09 16:54:22,463 WARN L313 ript$VariableManager]: TermVariabe |thread_usbThread1of1ForFork0_ieee80211_deregister_hw_~#status~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:54:22,506 INFO L354 Elim1Store]: treesize reduction 40, result has 45.2 percent of original size [2021-07-09 16:54:22,506 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 6 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 9 case distinctions, treesize of input 31 treesize of output 51 [2021-07-09 16:54:22,509 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 16:54:22,530 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 16:54:22,532 INFO L550 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-07-09 16:54:22,532 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 4 variables, input treesize:64, output treesize:22 [2021-07-09 16:54:22,569 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 13 [2021-07-09 16:54:22,570 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 16:54:22,575 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 16:54:22,577 INFO L550 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-07-09 16:54:22,577 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:37, output treesize:14 [2021-07-09 16:54:22,667 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 20 [2021-07-09 16:54:22,669 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 16:54:22,673 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 16:54:22,675 INFO L550 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2021-07-09 16:54:22,675 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:25, output treesize:21 [2021-07-09 16:54:22,797 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 14 [2021-07-09 16:54:22,798 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 16:54:22,801 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 16:54:22,802 INFO L550 ElimStorePlain]: Start of recursive call 1: 4 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-07-09 16:54:22,802 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 5 variables, input treesize:34, output treesize:5 [2021-07-09 16:54:22,871 INFO L134 CoverageAnalysis]: Checked inductivity of 190 backedges. 12 proven. 178 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-09 16:54:22,871 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [748492881] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-09 16:54:22,871 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-07-09 16:54:22,871 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [18, 19] total 34 [2021-07-09 16:54:22,871 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1650190722] [2021-07-09 16:54:22,872 INFO L462 AbstractCegarLoop]: Interpolant automaton has 34 states [2021-07-09 16:54:22,872 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 16:54:22,872 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 34 interpolants. [2021-07-09 16:54:22,872 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=147, Invalid=975, Unknown=0, NotChecked=0, Total=1122 [2021-07-09 16:54:22,873 INFO L87 Difference]: Start difference. First operand 29329 states and 86405 transitions. Second operand has 34 states, 34 states have (on average 13.647058823529411) internal successors, (464), 34 states have internal predecessors, (464), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:54:25,105 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 16:54:25,105 INFO L93 Difference]: Finished difference Result 34227 states and 97344 transitions. [2021-07-09 16:54:25,106 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2021-07-09 16:54:25,106 INFO L78 Accepts]: Start accepts. Automaton has has 34 states, 34 states have (on average 13.647058823529411) internal successors, (464), 34 states have internal predecessors, (464), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 245 [2021-07-09 16:54:25,106 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 16:54:25,179 INFO L225 Difference]: With dead ends: 34227 [2021-07-09 16:54:25,179 INFO L226 Difference]: Without dead ends: 34227 [2021-07-09 16:54:25,180 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 295 GetRequests, 234 SyntacticMatches, 4 SemanticMatches, 57 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 801 ImplicationChecksByTransitivity, 1941.9ms TimeCoverageRelationStatistics Valid=458, Invalid=2964, Unknown=0, NotChecked=0, Total=3422 [2021-07-09 16:54:25,266 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34227 states. [2021-07-09 16:54:25,648 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34227 to 29668. [2021-07-09 16:54:25,689 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 29668 states, 29666 states have (on average 2.9473134227735454) internal successors, (87435), 29667 states have internal predecessors, (87435), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:54:25,898 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29668 states to 29668 states and 87435 transitions. [2021-07-09 16:54:25,898 INFO L78 Accepts]: Start accepts. Automaton has 29668 states and 87435 transitions. Word has length 245 [2021-07-09 16:54:25,899 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 16:54:25,899 INFO L482 AbstractCegarLoop]: Abstraction has 29668 states and 87435 transitions. [2021-07-09 16:54:25,899 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 34 states, 34 states have (on average 13.647058823529411) internal successors, (464), 34 states have internal predecessors, (464), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:54:25,899 INFO L276 IsEmpty]: Start isEmpty. Operand 29668 states and 87435 transitions. [2021-07-09 16:54:25,945 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 246 [2021-07-09 16:54:25,945 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 16:54:25,945 INFO L508 BasicCegarLoop]: trace histogram [5, 5, 5, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-09 16:54:26,163 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable21 [2021-07-09 16:54:26,164 INFO L430 AbstractCegarLoop]: === Iteration 21 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-09 16:54:26,164 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 16:54:26,164 INFO L82 PathProgramCache]: Analyzing trace with hash 761432139, now seen corresponding path program 12 times [2021-07-09 16:54:26,164 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 16:54:26,164 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1933694750] [2021-07-09 16:54:26,164 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 16:54:26,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 16:54:26,691 INFO L134 CoverageAnalysis]: Checked inductivity of 190 backedges. 12 proven. 178 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-09 16:54:26,691 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 16:54:26,691 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1933694750] [2021-07-09 16:54:26,691 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1933694750] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-09 16:54:26,692 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [204545257] [2021-07-09 16:54:26,692 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 13 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 13 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-09 16:54:27,060 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 5 check-sat command(s) [2021-07-09 16:54:27,060 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-07-09 16:54:27,063 INFO L263 TraceCheckSpWp]: Trace formula consists of 475 conjuncts, 37 conjunts are in the unsatisfiable core [2021-07-09 16:54:27,066 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-09 16:54:27,077 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2021-07-09 16:54:27,078 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 16:54:27,079 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 16:54:27,079 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-07-09 16:54:27,079 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:6, output treesize:5 [2021-07-09 16:54:27,094 INFO L354 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2021-07-09 16:54:27,095 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 17 treesize of output 21 [2021-07-09 16:54:27,096 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 16:54:27,100 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 16:54:27,100 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-07-09 16:54:27,101 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:17, output treesize:15 [2021-07-09 16:54:27,144 INFO L354 Elim1Store]: treesize reduction 36, result has 34.5 percent of original size [2021-07-09 16:54:27,144 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 22 treesize of output 33 [2021-07-09 16:54:27,145 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 16:54:27,152 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 16:54:27,154 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2021-07-09 16:54:27,154 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:26, output treesize:28 [2021-07-09 16:54:27,370 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2021-07-09 16:54:27,371 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 16:54:27,381 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 16:54:27,382 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2021-07-09 16:54:27,382 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:41, output treesize:37 [2021-07-09 16:54:27,560 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 20 [2021-07-09 16:54:27,561 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 16:54:27,572 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 16:54:27,574 INFO L550 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2021-07-09 16:54:27,574 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:48, output treesize:37 [2021-07-09 16:54:27,808 INFO L354 Elim1Store]: treesize reduction 54, result has 34.1 percent of original size [2021-07-09 16:54:27,808 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 27 treesize of output 45 [2021-07-09 16:54:27,810 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 16:54:27,824 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 16:54:27,825 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2021-07-09 16:54:27,825 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:48, output treesize:54 [2021-07-09 16:54:27,952 INFO L354 Elim1Store]: treesize reduction 72, result has 33.9 percent of original size [2021-07-09 16:54:27,952 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 6 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 8 case distinctions, treesize of input 32 treesize of output 57 [2021-07-09 16:54:27,954 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 16:54:27,980 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 16:54:27,983 INFO L550 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-1 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2021-07-09 16:54:27,983 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:65, output treesize:75 [2021-07-09 16:54:28,166 WARN L205 SmtUtils]: Spent 127.00 ms on a formula simplification that was a NOOP. DAG size: 48 [2021-07-09 16:54:28,178 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 7 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 13 [2021-07-09 16:54:28,179 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 16:54:28,204 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 16:54:28,207 INFO L550 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2021-07-09 16:54:28,207 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 4 variables, input treesize:90, output treesize:75 [2021-07-09 16:54:28,243 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 10 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 41 [2021-07-09 16:54:28,245 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 16:54:28,281 INFO L628 ElimStorePlain]: treesize reduction 16, result has 78.7 percent of original size [2021-07-09 16:54:28,284 INFO L550 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-1 vars, End of recursive call: 3 dim-0 vars, and 1 xjuncts. [2021-07-09 16:54:28,284 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 4 variables, input treesize:81, output treesize:59 [2021-07-09 16:54:28,666 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 5 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 20 [2021-07-09 16:54:28,667 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 16:54:28,686 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 16:54:28,691 INFO L550 ElimStorePlain]: Start of recursive call 1: 6 dim-0 vars, 1 dim-2 vars, End of recursive call: 4 dim-0 vars, and 1 xjuncts. [2021-07-09 16:54:28,691 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 7 variables, input treesize:70, output treesize:59 [2021-07-09 16:54:29,239 WARN L313 ript$VariableManager]: TermVariabe |thread_usbThread1of1ForFork0_ieee80211_deregister_hw_~#status~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:54:29,282 INFO L354 Elim1Store]: treesize reduction 40, result has 45.2 percent of original size [2021-07-09 16:54:29,282 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 6 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 9 case distinctions, treesize of input 31 treesize of output 51 [2021-07-09 16:54:29,285 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 16:54:29,305 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 16:54:29,306 INFO L550 ElimStorePlain]: Start of recursive call 1: 4 dim-0 vars, 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-07-09 16:54:29,306 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 5 variables, input treesize:64, output treesize:14 [2021-07-09 16:54:29,338 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 13 [2021-07-09 16:54:29,339 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 16:54:29,342 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 16:54:29,342 INFO L550 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-07-09 16:54:29,343 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:29, output treesize:9 [2021-07-09 16:54:29,365 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 9 [2021-07-09 16:54:29,366 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 16:54:29,367 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 16:54:29,368 INFO L550 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-07-09 16:54:29,368 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:17, output treesize:5 [2021-07-09 16:54:29,495 INFO L134 CoverageAnalysis]: Checked inductivity of 190 backedges. 12 proven. 178 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-09 16:54:29,495 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [204545257] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-09 16:54:29,495 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-07-09 16:54:29,495 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 19] total 33 [2021-07-09 16:54:29,495 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [966915177] [2021-07-09 16:54:29,496 INFO L462 AbstractCegarLoop]: Interpolant automaton has 33 states [2021-07-09 16:54:29,496 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 16:54:29,496 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 33 interpolants. [2021-07-09 16:54:29,497 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=148, Invalid=908, Unknown=0, NotChecked=0, Total=1056 [2021-07-09 16:54:29,497 INFO L87 Difference]: Start difference. First operand 29668 states and 87435 transitions. Second operand has 33 states, 33 states have (on average 14.212121212121213) internal successors, (469), 33 states have internal predecessors, (469), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:54:32,102 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 16:54:32,102 INFO L93 Difference]: Finished difference Result 47807 states and 134518 transitions. [2021-07-09 16:54:32,103 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 43 states. [2021-07-09 16:54:32,103 INFO L78 Accepts]: Start accepts. Automaton has has 33 states, 33 states have (on average 14.212121212121213) internal successors, (469), 33 states have internal predecessors, (469), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 245 [2021-07-09 16:54:32,103 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 16:54:32,209 INFO L225 Difference]: With dead ends: 47807 [2021-07-09 16:54:32,210 INFO L226 Difference]: Without dead ends: 47807 [2021-07-09 16:54:32,212 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 305 GetRequests, 233 SyntacticMatches, 4 SemanticMatches, 68 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1300 ImplicationChecksByTransitivity, 2254.4ms TimeCoverageRelationStatistics Valid=651, Invalid=4179, Unknown=0, NotChecked=0, Total=4830 [2021-07-09 16:54:32,330 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47807 states. [2021-07-09 16:54:32,920 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 47807 to 29668. [2021-07-09 16:54:32,960 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 29668 states, 29666 states have (on average 2.9473134227735454) internal successors, (87435), 29667 states have internal predecessors, (87435), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:54:33,027 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29668 states to 29668 states and 87435 transitions. [2021-07-09 16:54:33,028 INFO L78 Accepts]: Start accepts. Automaton has 29668 states and 87435 transitions. Word has length 245 [2021-07-09 16:54:33,028 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 16:54:33,028 INFO L482 AbstractCegarLoop]: Abstraction has 29668 states and 87435 transitions. [2021-07-09 16:54:33,028 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 33 states, 33 states have (on average 14.212121212121213) internal successors, (469), 33 states have internal predecessors, (469), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:54:33,028 INFO L276 IsEmpty]: Start isEmpty. Operand 29668 states and 87435 transitions. [2021-07-09 16:54:33,071 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 246 [2021-07-09 16:54:33,071 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 16:54:33,071 INFO L508 BasicCegarLoop]: trace histogram [5, 5, 5, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-09 16:54:33,288 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22,13 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-09 16:54:33,289 INFO L430 AbstractCegarLoop]: === Iteration 22 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-09 16:54:33,289 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 16:54:33,289 INFO L82 PathProgramCache]: Analyzing trace with hash -1373465311, now seen corresponding path program 13 times [2021-07-09 16:54:33,289 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 16:54:33,289 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [181520288] [2021-07-09 16:54:33,289 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 16:54:33,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 16:54:33,782 INFO L134 CoverageAnalysis]: Checked inductivity of 190 backedges. 6 proven. 184 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-09 16:54:33,783 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 16:54:33,783 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [181520288] [2021-07-09 16:54:33,783 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [181520288] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-09 16:54:33,783 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1533347172] [2021-07-09 16:54:33,783 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 14 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 14 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-09 16:54:33,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 16:54:33,938 INFO L263 TraceCheckSpWp]: Trace formula consists of 475 conjuncts, 45 conjunts are in the unsatisfiable core [2021-07-09 16:54:33,941 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-09 16:54:33,952 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2021-07-09 16:54:33,952 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 16:54:33,953 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 16:54:33,954 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-07-09 16:54:33,954 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:6, output treesize:5 [2021-07-09 16:54:33,969 INFO L354 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2021-07-09 16:54:33,969 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 17 treesize of output 21 [2021-07-09 16:54:33,971 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 16:54:33,974 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 16:54:33,975 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-07-09 16:54:33,975 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:17, output treesize:15 [2021-07-09 16:54:34,020 INFO L354 Elim1Store]: treesize reduction 36, result has 34.5 percent of original size [2021-07-09 16:54:34,020 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 22 treesize of output 33 [2021-07-09 16:54:34,022 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 16:54:34,029 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 16:54:34,030 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2021-07-09 16:54:34,030 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:26, output treesize:28 [2021-07-09 16:54:34,232 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2021-07-09 16:54:34,233 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 16:54:34,241 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 16:54:34,242 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2021-07-09 16:54:34,242 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:41, output treesize:37 [2021-07-09 16:54:34,456 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 20 [2021-07-09 16:54:34,457 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 16:54:34,468 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 16:54:34,469 INFO L550 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2021-07-09 16:54:34,469 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:48, output treesize:37 [2021-07-09 16:54:34,871 INFO L354 Elim1Store]: treesize reduction 54, result has 34.1 percent of original size [2021-07-09 16:54:34,871 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 27 treesize of output 45 [2021-07-09 16:54:34,873 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 16:54:34,889 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 16:54:34,890 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2021-07-09 16:54:34,890 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:48, output treesize:54 [2021-07-09 16:54:35,171 INFO L354 Elim1Store]: treesize reduction 72, result has 33.9 percent of original size [2021-07-09 16:54:35,171 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 6 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 8 case distinctions, treesize of input 32 treesize of output 57 [2021-07-09 16:54:35,173 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 16:54:35,198 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 16:54:35,202 INFO L550 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-1 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2021-07-09 16:54:35,202 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:65, output treesize:75 [2021-07-09 16:54:35,291 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 7 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 13 [2021-07-09 16:54:35,292 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 16:54:35,316 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 16:54:35,320 INFO L550 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2021-07-09 16:54:35,320 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 4 variables, input treesize:90, output treesize:75 [2021-07-09 16:54:35,359 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 10 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 41 [2021-07-09 16:54:35,361 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 16:54:35,397 INFO L628 ElimStorePlain]: treesize reduction 16, result has 78.7 percent of original size [2021-07-09 16:54:35,401 INFO L550 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-1 vars, End of recursive call: 3 dim-0 vars, and 1 xjuncts. [2021-07-09 16:54:35,401 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 4 variables, input treesize:81, output treesize:59 [2021-07-09 16:54:35,872 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 5 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 20 [2021-07-09 16:54:35,873 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 16:54:35,893 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 16:54:35,897 INFO L550 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-2 vars, End of recursive call: 3 dim-0 vars, and 1 xjuncts. [2021-07-09 16:54:35,897 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 4 variables, input treesize:75, output treesize:71 [2021-07-09 16:54:36,477 WARN L313 ript$VariableManager]: TermVariabe |thread_usbThread1of1ForFork0_ieee80211_deregister_hw_~#status~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:54:36,519 INFO L354 Elim1Store]: treesize reduction 40, result has 45.2 percent of original size [2021-07-09 16:54:36,519 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 6 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 9 case distinctions, treesize of input 31 treesize of output 51 [2021-07-09 16:54:36,522 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 16:54:36,547 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 16:54:36,549 INFO L550 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-07-09 16:54:36,549 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 4 variables, input treesize:80, output treesize:38 [2021-07-09 16:54:36,673 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 45 treesize of output 32 [2021-07-09 16:54:36,674 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 16:54:36,684 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 16:54:36,686 INFO L550 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-07-09 16:54:36,686 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:57, output treesize:34 [2021-07-09 16:54:36,820 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 32 [2021-07-09 16:54:36,822 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 16:54:36,828 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 16:54:36,830 INFO L550 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2021-07-09 16:54:36,830 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:45, output treesize:28 [2021-07-09 16:54:37,064 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 21 [2021-07-09 16:54:37,065 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 16:54:37,070 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 16:54:37,071 INFO L550 ElimStorePlain]: Start of recursive call 1: 4 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-07-09 16:54:37,071 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 5 variables, input treesize:45, output treesize:13 [2021-07-09 16:54:37,152 INFO L134 CoverageAnalysis]: Checked inductivity of 190 backedges. 11 proven. 179 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-09 16:54:37,153 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1533347172] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-09 16:54:37,153 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-07-09 16:54:37,153 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [19, 25] total 41 [2021-07-09 16:54:37,153 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [148412399] [2021-07-09 16:54:37,153 INFO L462 AbstractCegarLoop]: Interpolant automaton has 41 states [2021-07-09 16:54:37,153 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 16:54:37,154 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 41 interpolants. [2021-07-09 16:54:37,154 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=188, Invalid=1452, Unknown=0, NotChecked=0, Total=1640 [2021-07-09 16:54:37,154 INFO L87 Difference]: Start difference. First operand 29668 states and 87435 transitions. Second operand has 41 states, 41 states have (on average 11.439024390243903) internal successors, (469), 41 states have internal predecessors, (469), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:54:38,020 WARN L205 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 37 DAG size of output: 37 [2021-07-09 16:54:38,370 WARN L205 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 44 DAG size of output: 40 [2021-07-09 16:55:08,096 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 16:55:08,097 INFO L93 Difference]: Finished difference Result 48214 states and 136407 transitions. [2021-07-09 16:55:08,097 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 62 states. [2021-07-09 16:55:08,097 INFO L78 Accepts]: Start accepts. Automaton has has 41 states, 41 states have (on average 11.439024390243903) internal successors, (469), 41 states have internal predecessors, (469), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 245 [2021-07-09 16:55:08,097 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 16:55:08,204 INFO L225 Difference]: With dead ends: 48214 [2021-07-09 16:55:08,204 INFO L226 Difference]: Without dead ends: 48214 [2021-07-09 16:55:08,206 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 325 GetRequests, 227 SyntacticMatches, 4 SemanticMatches, 94 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2777 ImplicationChecksByTransitivity, 5409.6ms TimeCoverageRelationStatistics Valid=940, Invalid=8179, Unknown=1, NotChecked=0, Total=9120 [2021-07-09 16:55:08,326 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 48214 states. [2021-07-09 16:55:08,860 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 48214 to 31064. [2021-07-09 16:55:08,900 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 31064 states, 31062 states have (on average 2.9512265790998646) internal successors, (91671), 31063 states have internal predecessors, (91671), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:55:08,975 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31064 states to 31064 states and 91671 transitions. [2021-07-09 16:55:08,975 INFO L78 Accepts]: Start accepts. Automaton has 31064 states and 91671 transitions. Word has length 245 [2021-07-09 16:55:08,976 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 16:55:08,976 INFO L482 AbstractCegarLoop]: Abstraction has 31064 states and 91671 transitions. [2021-07-09 16:55:08,976 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 41 states, 41 states have (on average 11.439024390243903) internal successors, (469), 41 states have internal predecessors, (469), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:55:08,976 INFO L276 IsEmpty]: Start isEmpty. Operand 31064 states and 91671 transitions. [2021-07-09 16:55:09,023 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 246 [2021-07-09 16:55:09,023 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 16:55:09,023 INFO L508 BasicCegarLoop]: trace histogram [5, 5, 5, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-09 16:55:09,236 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable23 [2021-07-09 16:55:09,237 INFO L430 AbstractCegarLoop]: === Iteration 23 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-09 16:55:09,237 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 16:55:09,237 INFO L82 PathProgramCache]: Analyzing trace with hash 224316995, now seen corresponding path program 14 times [2021-07-09 16:55:09,237 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 16:55:09,237 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [454412163] [2021-07-09 16:55:09,238 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 16:55:09,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 16:55:09,797 INFO L134 CoverageAnalysis]: Checked inductivity of 190 backedges. 6 proven. 172 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2021-07-09 16:55:09,797 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 16:55:09,797 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [454412163] [2021-07-09 16:55:09,797 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [454412163] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-09 16:55:09,797 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1871980617] [2021-07-09 16:55:09,797 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 15 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 15 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-09 16:55:09,975 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-07-09 16:55:09,975 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-07-09 16:55:09,977 INFO L263 TraceCheckSpWp]: Trace formula consists of 475 conjuncts, 17 conjunts are in the unsatisfiable core [2021-07-09 16:55:09,980 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-09 16:55:10,023 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2021-07-09 16:55:10,024 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 16:55:10,028 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 16:55:10,028 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-07-09 16:55:10,028 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:22, output treesize:19 [2021-07-09 16:55:10,067 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 14 [2021-07-09 16:55:10,068 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 16:55:10,071 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 16:55:10,071 INFO L550 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-07-09 16:55:10,071 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:26, output treesize:11 [2021-07-09 16:55:10,370 INFO L134 CoverageAnalysis]: Checked inductivity of 190 backedges. 6 proven. 172 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2021-07-09 16:55:10,370 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1871980617] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-09 16:55:10,370 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-07-09 16:55:10,370 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10] total 15 [2021-07-09 16:55:10,370 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1618950544] [2021-07-09 16:55:10,370 INFO L462 AbstractCegarLoop]: Interpolant automaton has 15 states [2021-07-09 16:55:10,371 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 16:55:10,371 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2021-07-09 16:55:10,371 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=178, Unknown=0, NotChecked=0, Total=210 [2021-07-09 16:55:10,371 INFO L87 Difference]: Start difference. First operand 31064 states and 91671 transitions. Second operand has 15 states, 15 states have (on average 26.4) internal successors, (396), 15 states have internal predecessors, (396), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:55:11,203 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 16:55:11,203 INFO L93 Difference]: Finished difference Result 34344 states and 98403 transitions. [2021-07-09 16:55:11,204 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2021-07-09 16:55:11,204 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 26.4) internal successors, (396), 15 states have internal predecessors, (396), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 245 [2021-07-09 16:55:11,204 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 16:55:11,273 INFO L225 Difference]: With dead ends: 34344 [2021-07-09 16:55:11,274 INFO L226 Difference]: Without dead ends: 34344 [2021-07-09 16:55:11,274 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 266 GetRequests, 240 SyntacticMatches, 1 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 106 ImplicationChecksByTransitivity, 465.5ms TimeCoverageRelationStatistics Valid=107, Invalid=595, Unknown=0, NotChecked=0, Total=702 [2021-07-09 16:55:11,362 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34344 states. [2021-07-09 16:55:11,746 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34344 to 31087. [2021-07-09 16:55:11,787 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 31087 states, 31085 states have (on average 2.9499115328936787) internal successors, (91698), 31086 states have internal predecessors, (91698), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:55:11,862 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31087 states to 31087 states and 91698 transitions. [2021-07-09 16:55:11,862 INFO L78 Accepts]: Start accepts. Automaton has 31087 states and 91698 transitions. Word has length 245 [2021-07-09 16:55:11,863 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 16:55:11,863 INFO L482 AbstractCegarLoop]: Abstraction has 31087 states and 91698 transitions. [2021-07-09 16:55:11,863 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 15 states, 15 states have (on average 26.4) internal successors, (396), 15 states have internal predecessors, (396), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:55:11,863 INFO L276 IsEmpty]: Start isEmpty. Operand 31087 states and 91698 transitions. [2021-07-09 16:55:11,915 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 318 [2021-07-09 16:55:11,915 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 16:55:11,915 INFO L508 BasicCegarLoop]: trace histogram [7, 7, 7, 6, 6, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-09 16:55:12,133 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26,15 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-09 16:55:12,133 INFO L430 AbstractCegarLoop]: === Iteration 24 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-09 16:55:12,133 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 16:55:12,134 INFO L82 PathProgramCache]: Analyzing trace with hash 721070286, now seen corresponding path program 15 times [2021-07-09 16:55:12,134 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 16:55:12,134 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1616796111] [2021-07-09 16:55:12,134 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 16:55:12,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 16:55:12,711 INFO L134 CoverageAnalysis]: Checked inductivity of 411 backedges. 9 proven. 384 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2021-07-09 16:55:12,711 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 16:55:12,711 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1616796111] [2021-07-09 16:55:12,711 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1616796111] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-09 16:55:12,711 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1320046141] [2021-07-09 16:55:12,711 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 16 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 16 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-09 16:55:12,929 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 6 check-sat command(s) [2021-07-09 16:55:12,929 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-07-09 16:55:12,931 INFO L263 TraceCheckSpWp]: Trace formula consists of 556 conjuncts, 26 conjunts are in the unsatisfiable core [2021-07-09 16:55:12,934 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-09 16:55:12,949 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2021-07-09 16:55:12,950 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 16:55:12,951 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 16:55:12,951 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-07-09 16:55:12,951 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:6, output treesize:5 [2021-07-09 16:55:12,960 INFO L354 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2021-07-09 16:55:12,960 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 11 treesize of output 11 [2021-07-09 16:55:12,961 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 16:55:12,962 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 16:55:12,963 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-07-09 16:55:12,963 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:11, output treesize:4 [2021-07-09 16:55:13,009 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2021-07-09 16:55:13,009 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 16:55:13,014 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 16:55:13,015 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-07-09 16:55:13,015 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:26, output treesize:23 [2021-07-09 16:55:13,050 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 16:55:13,051 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 25 [2021-07-09 16:55:13,052 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 16:55:13,057 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 16:55:13,058 INFO L550 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-07-09 16:55:13,058 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 4 variables, input treesize:50, output treesize:19 [2021-07-09 16:55:13,087 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 14 [2021-07-09 16:55:13,088 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 16:55:13,091 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 16:55:13,091 INFO L550 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-07-09 16:55:13,091 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:26, output treesize:11 [2021-07-09 16:55:13,762 INFO L134 CoverageAnalysis]: Checked inductivity of 411 backedges. 9 proven. 390 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2021-07-09 16:55:13,762 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1320046141] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-09 16:55:13,762 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-07-09 16:55:13,762 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 17] total 22 [2021-07-09 16:55:13,762 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [799141799] [2021-07-09 16:55:13,763 INFO L462 AbstractCegarLoop]: Interpolant automaton has 22 states [2021-07-09 16:55:13,763 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 16:55:13,763 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2021-07-09 16:55:13,763 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=407, Unknown=0, NotChecked=0, Total=462 [2021-07-09 16:55:13,763 INFO L87 Difference]: Start difference. First operand 31087 states and 91698 transitions. Second operand has 22 states, 22 states have (on average 24.681818181818183) internal successors, (543), 22 states have internal predecessors, (543), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:55:15,036 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 16:55:15,036 INFO L93 Difference]: Finished difference Result 34341 states and 98400 transitions. [2021-07-09 16:55:15,036 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2021-07-09 16:55:15,036 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 22 states have (on average 24.681818181818183) internal successors, (543), 22 states have internal predecessors, (543), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 317 [2021-07-09 16:55:15,037 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 16:55:15,102 INFO L225 Difference]: With dead ends: 34341 [2021-07-09 16:55:15,102 INFO L226 Difference]: Without dead ends: 34341 [2021-07-09 16:55:15,102 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 353 GetRequests, 307 SyntacticMatches, 4 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 430 ImplicationChecksByTransitivity, 952.8ms TimeCoverageRelationStatistics Valid=220, Invalid=1672, Unknown=0, NotChecked=0, Total=1892 [2021-07-09 16:55:15,182 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34341 states. [2021-07-09 16:55:15,535 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34341 to 31877. [2021-07-09 16:55:15,575 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 31877 states, 31875 states have (on average 2.9285019607843137) internal successors, (93346), 31876 states have internal predecessors, (93346), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:55:15,645 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31877 states to 31877 states and 93346 transitions. [2021-07-09 16:55:15,645 INFO L78 Accepts]: Start accepts. Automaton has 31877 states and 93346 transitions. Word has length 317 [2021-07-09 16:55:15,645 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 16:55:15,645 INFO L482 AbstractCegarLoop]: Abstraction has 31877 states and 93346 transitions. [2021-07-09 16:55:15,645 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 22 states, 22 states have (on average 24.681818181818183) internal successors, (543), 22 states have internal predecessors, (543), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:55:15,645 INFO L276 IsEmpty]: Start isEmpty. Operand 31877 states and 93346 transitions. [2021-07-09 16:55:15,887 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 318 [2021-07-09 16:55:15,887 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 16:55:15,888 INFO L508 BasicCegarLoop]: trace histogram [7, 7, 7, 6, 6, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-09 16:55:16,106 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable27 [2021-07-09 16:55:16,106 INFO L430 AbstractCegarLoop]: === Iteration 25 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-09 16:55:16,107 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 16:55:16,107 INFO L82 PathProgramCache]: Analyzing trace with hash -438196194, now seen corresponding path program 16 times [2021-07-09 16:55:16,107 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 16:55:16,107 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [769024166] [2021-07-09 16:55:16,107 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 16:55:16,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 16:55:16,577 WARN L205 SmtUtils]: Spent 114.00 ms on a formula simplification that was a NOOP. DAG size: 25 [2021-07-09 16:55:16,801 INFO L134 CoverageAnalysis]: Checked inductivity of 411 backedges. 9 proven. 390 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2021-07-09 16:55:16,801 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 16:55:16,801 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [769024166] [2021-07-09 16:55:16,801 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [769024166] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-09 16:55:16,801 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1069041049] [2021-07-09 16:55:16,801 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 17 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 17 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-09 16:55:17,019 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-07-09 16:55:17,019 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-07-09 16:55:17,021 INFO L263 TraceCheckSpWp]: Trace formula consists of 601 conjuncts, 33 conjunts are in the unsatisfiable core [2021-07-09 16:55:17,025 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-09 16:55:17,035 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2021-07-09 16:55:17,035 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 16:55:17,036 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 16:55:17,037 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-07-09 16:55:17,037 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:6, output treesize:5 [2021-07-09 16:55:17,050 INFO L354 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2021-07-09 16:55:17,051 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 17 treesize of output 21 [2021-07-09 16:55:17,051 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 16:55:17,055 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 16:55:17,055 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-07-09 16:55:17,055 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:17, output treesize:15 [2021-07-09 16:55:17,105 INFO L354 Elim1Store]: treesize reduction 36, result has 34.5 percent of original size [2021-07-09 16:55:17,106 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 22 treesize of output 33 [2021-07-09 16:55:17,107 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 16:55:17,113 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 16:55:17,114 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2021-07-09 16:55:17,114 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:26, output treesize:28 [2021-07-09 16:55:17,374 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2021-07-09 16:55:17,375 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 16:55:17,384 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 16:55:17,386 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2021-07-09 16:55:17,386 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:41, output treesize:37 [2021-07-09 16:55:17,576 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 20 [2021-07-09 16:55:17,577 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 16:55:17,589 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 16:55:17,592 INFO L550 ElimStorePlain]: Start of recursive call 1: 4 dim-0 vars, 1 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2021-07-09 16:55:17,592 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 5 variables, input treesize:48, output treesize:37 [2021-07-09 16:55:17,747 INFO L354 Elim1Store]: treesize reduction 54, result has 34.1 percent of original size [2021-07-09 16:55:17,747 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 27 treesize of output 45 [2021-07-09 16:55:17,749 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 16:55:17,764 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 16:55:17,769 INFO L550 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-1 vars, End of recursive call: 3 dim-0 vars, and 1 xjuncts. [2021-07-09 16:55:17,769 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 4 variables, input treesize:48, output treesize:54 [2021-07-09 16:55:18,330 INFO L354 Elim1Store]: treesize reduction 16, result has 51.5 percent of original size [2021-07-09 16:55:18,330 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 6 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 4 case distinctions, treesize of input 26 treesize of output 32 [2021-07-09 16:55:18,333 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 16:55:18,348 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 16:55:18,349 INFO L550 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-07-09 16:55:18,349 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 4 variables, input treesize:59, output treesize:14 [2021-07-09 16:55:18,383 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 13 [2021-07-09 16:55:18,384 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 16:55:18,387 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 16:55:18,388 INFO L550 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-07-09 16:55:18,388 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:29, output treesize:9 [2021-07-09 16:55:18,410 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 9 [2021-07-09 16:55:18,411 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 16:55:18,412 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 16:55:18,413 INFO L550 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-07-09 16:55:18,413 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:17, output treesize:5 [2021-07-09 16:55:18,743 INFO L134 CoverageAnalysis]: Checked inductivity of 411 backedges. 9 proven. 390 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2021-07-09 16:55:18,744 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1069041049] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-09 16:55:18,744 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-07-09 16:55:18,744 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 18] total 31 [2021-07-09 16:55:18,744 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1987103820] [2021-07-09 16:55:18,745 INFO L462 AbstractCegarLoop]: Interpolant automaton has 31 states [2021-07-09 16:55:18,745 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 16:55:18,745 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 31 interpolants. [2021-07-09 16:55:18,745 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=115, Invalid=815, Unknown=0, NotChecked=0, Total=930 [2021-07-09 16:55:18,745 INFO L87 Difference]: Start difference. First operand 31877 states and 93346 transitions. Second operand has 31 states, 31 states have (on average 19.129032258064516) internal successors, (593), 31 states have internal predecessors, (593), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:55:29,936 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 16:55:29,936 INFO L93 Difference]: Finished difference Result 38689 states and 108131 transitions. [2021-07-09 16:55:29,937 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 41 states. [2021-07-09 16:55:29,937 INFO L78 Accepts]: Start accepts. Automaton has has 31 states, 31 states have (on average 19.129032258064516) internal successors, (593), 31 states have internal predecessors, (593), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 317 [2021-07-09 16:55:29,937 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 16:55:30,006 INFO L225 Difference]: With dead ends: 38689 [2021-07-09 16:55:30,006 INFO L226 Difference]: Without dead ends: 38689 [2021-07-09 16:55:30,007 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 372 GetRequests, 306 SyntacticMatches, 3 SemanticMatches, 63 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1117 ImplicationChecksByTransitivity, 4060.9ms TimeCoverageRelationStatistics Valid=535, Invalid=3624, Unknown=1, NotChecked=0, Total=4160 [2021-07-09 16:55:30,096 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38689 states. [2021-07-09 16:55:30,493 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38689 to 31877. [2021-07-09 16:55:30,535 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 31877 states, 31875 states have (on average 2.9285019607843137) internal successors, (93346), 31876 states have internal predecessors, (93346), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:55:30,867 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31877 states to 31877 states and 93346 transitions. [2021-07-09 16:55:30,867 INFO L78 Accepts]: Start accepts. Automaton has 31877 states and 93346 transitions. Word has length 317 [2021-07-09 16:55:30,868 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 16:55:30,868 INFO L482 AbstractCegarLoop]: Abstraction has 31877 states and 93346 transitions. [2021-07-09 16:55:30,868 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 31 states, 31 states have (on average 19.129032258064516) internal successors, (593), 31 states have internal predecessors, (593), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:55:30,868 INFO L276 IsEmpty]: Start isEmpty. Operand 31877 states and 93346 transitions. [2021-07-09 16:55:30,915 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 318 [2021-07-09 16:55:30,915 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 16:55:30,915 INFO L508 BasicCegarLoop]: trace histogram [7, 7, 7, 6, 6, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-09 16:55:31,133 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29,17 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-09 16:55:31,134 INFO L430 AbstractCegarLoop]: === Iteration 26 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-09 16:55:31,134 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 16:55:31,134 INFO L82 PathProgramCache]: Analyzing trace with hash -1037300068, now seen corresponding path program 17 times [2021-07-09 16:55:31,134 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 16:55:31,134 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1313871616] [2021-07-09 16:55:31,134 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 16:55:31,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 16:55:31,844 INFO L134 CoverageAnalysis]: Checked inductivity of 411 backedges. 9 proven. 390 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2021-07-09 16:55:31,844 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 16:55:31,844 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1313871616] [2021-07-09 16:55:31,844 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1313871616] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-09 16:55:31,844 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [273375020] [2021-07-09 16:55:31,844 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 18 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 18 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-09 16:55:32,053 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 7 check-sat command(s) [2021-07-09 16:55:32,053 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-07-09 16:55:32,055 INFO L263 TraceCheckSpWp]: Trace formula consists of 601 conjuncts, 35 conjunts are in the unsatisfiable core [2021-07-09 16:55:32,058 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-09 16:55:32,069 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2021-07-09 16:55:32,070 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 16:55:32,071 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 16:55:32,071 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-07-09 16:55:32,071 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:6, output treesize:5 [2021-07-09 16:55:32,087 INFO L354 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2021-07-09 16:55:32,087 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 17 treesize of output 21 [2021-07-09 16:55:32,088 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 16:55:32,092 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 16:55:32,092 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-07-09 16:55:32,092 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:17, output treesize:15 [2021-07-09 16:55:32,139 INFO L354 Elim1Store]: treesize reduction 36, result has 34.5 percent of original size [2021-07-09 16:55:32,140 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 22 treesize of output 33 [2021-07-09 16:55:32,141 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 16:55:32,149 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 16:55:32,150 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2021-07-09 16:55:32,150 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:26, output treesize:28 [2021-07-09 16:55:32,384 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2021-07-09 16:55:32,385 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 16:55:32,395 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 16:55:32,396 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2021-07-09 16:55:32,396 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:41, output treesize:37 [2021-07-09 16:55:32,589 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 20 [2021-07-09 16:55:32,590 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 16:55:32,601 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 16:55:32,604 INFO L550 ElimStorePlain]: Start of recursive call 1: 4 dim-0 vars, 1 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2021-07-09 16:55:32,604 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 5 variables, input treesize:48, output treesize:37 [2021-07-09 16:55:32,785 INFO L354 Elim1Store]: treesize reduction 42, result has 27.6 percent of original size [2021-07-09 16:55:32,785 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 22 treesize of output 30 [2021-07-09 16:55:32,786 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 16:55:32,797 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 16:55:32,801 INFO L550 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-1 vars, End of recursive call: 3 dim-0 vars, and 1 xjuncts. [2021-07-09 16:55:32,801 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 4 variables, input treesize:43, output treesize:42 [2021-07-09 16:55:33,323 INFO L354 Elim1Store]: treesize reduction 12, result has 52.0 percent of original size [2021-07-09 16:55:33,324 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 21 treesize of output 25 [2021-07-09 16:55:33,326 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 16:55:33,334 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 16:55:33,335 INFO L550 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-07-09 16:55:33,335 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:42, output treesize:14 [2021-07-09 16:55:33,369 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 13 [2021-07-09 16:55:33,370 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 16:55:33,373 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 16:55:33,374 INFO L550 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-07-09 16:55:33,374 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:29, output treesize:9 [2021-07-09 16:55:33,444 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 9 [2021-07-09 16:55:33,444 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 16:55:33,446 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 16:55:33,446 INFO L550 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-07-09 16:55:33,446 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:17, output treesize:5 [2021-07-09 16:55:33,722 INFO L134 CoverageAnalysis]: Checked inductivity of 411 backedges. 9 proven. 390 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2021-07-09 16:55:33,722 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [273375020] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-09 16:55:33,722 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-07-09 16:55:33,722 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 19] total 33 [2021-07-09 16:55:33,722 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [214748301] [2021-07-09 16:55:33,723 INFO L462 AbstractCegarLoop]: Interpolant automaton has 33 states [2021-07-09 16:55:33,723 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 16:55:33,723 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 33 interpolants. [2021-07-09 16:55:33,723 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=128, Invalid=928, Unknown=0, NotChecked=0, Total=1056 [2021-07-09 16:55:33,723 INFO L87 Difference]: Start difference. First operand 31877 states and 93346 transitions. Second operand has 33 states, 33 states have (on average 17.96969696969697) internal successors, (593), 33 states have internal predecessors, (593), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:55:36,257 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 16:55:36,257 INFO L93 Difference]: Finished difference Result 37857 states and 106712 transitions. [2021-07-09 16:55:36,258 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2021-07-09 16:55:36,258 INFO L78 Accepts]: Start accepts. Automaton has has 33 states, 33 states have (on average 17.96969696969697) internal successors, (593), 33 states have internal predecessors, (593), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 317 [2021-07-09 16:55:36,258 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 16:55:36,328 INFO L225 Difference]: With dead ends: 37857 [2021-07-09 16:55:36,328 INFO L226 Difference]: Without dead ends: 37857 [2021-07-09 16:55:36,329 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 365 GetRequests, 304 SyntacticMatches, 3 SemanticMatches, 58 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 913 ImplicationChecksByTransitivity, 1754.2ms TimeCoverageRelationStatistics Valid=442, Invalid=3098, Unknown=0, NotChecked=0, Total=3540 [2021-07-09 16:55:36,417 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37857 states. [2021-07-09 16:55:36,895 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37857 to 31877. [2021-07-09 16:55:36,931 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 31877 states, 31875 states have (on average 2.9285019607843137) internal successors, (93346), 31876 states have internal predecessors, (93346), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:55:37,001 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31877 states to 31877 states and 93346 transitions. [2021-07-09 16:55:37,001 INFO L78 Accepts]: Start accepts. Automaton has 31877 states and 93346 transitions. Word has length 317 [2021-07-09 16:55:37,001 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 16:55:37,001 INFO L482 AbstractCegarLoop]: Abstraction has 31877 states and 93346 transitions. [2021-07-09 16:55:37,001 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 33 states, 33 states have (on average 17.96969696969697) internal successors, (593), 33 states have internal predecessors, (593), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:55:37,002 INFO L276 IsEmpty]: Start isEmpty. Operand 31877 states and 93346 transitions. [2021-07-09 16:55:37,049 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 318 [2021-07-09 16:55:37,049 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 16:55:37,049 INFO L508 BasicCegarLoop]: trace histogram [7, 7, 7, 6, 6, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-09 16:55:37,266 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 18 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable30 [2021-07-09 16:55:37,266 INFO L430 AbstractCegarLoop]: === Iteration 27 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-09 16:55:37,267 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 16:55:37,267 INFO L82 PathProgramCache]: Analyzing trace with hash 399287144, now seen corresponding path program 18 times [2021-07-09 16:55:37,267 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 16:55:37,267 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1182427354] [2021-07-09 16:55:37,267 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 16:55:37,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 16:55:38,090 INFO L134 CoverageAnalysis]: Checked inductivity of 411 backedges. 9 proven. 390 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2021-07-09 16:55:38,091 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 16:55:38,091 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1182427354] [2021-07-09 16:55:38,091 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1182427354] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-09 16:55:38,091 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1400287748] [2021-07-09 16:55:38,091 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 19 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 19 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-09 16:55:38,348 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 7 check-sat command(s) [2021-07-09 16:55:38,348 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-07-09 16:55:38,350 INFO L263 TraceCheckSpWp]: Trace formula consists of 601 conjuncts, 42 conjunts are in the unsatisfiable core [2021-07-09 16:55:38,353 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-09 16:55:38,363 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2021-07-09 16:55:38,363 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 16:55:38,365 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 16:55:38,365 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2021-07-09 16:55:38,365 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:6, output treesize:5 [2021-07-09 16:55:38,401 INFO L354 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2021-07-09 16:55:38,401 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 17 treesize of output 21 [2021-07-09 16:55:38,402 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 16:55:38,407 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 16:55:38,408 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2021-07-09 16:55:38,408 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:17, output treesize:15 [2021-07-09 16:55:38,476 INFO L354 Elim1Store]: treesize reduction 36, result has 34.5 percent of original size [2021-07-09 16:55:38,476 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 22 treesize of output 33 [2021-07-09 16:55:38,477 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 16:55:38,485 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 16:55:38,486 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2021-07-09 16:55:38,486 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:26, output treesize:28 [2021-07-09 16:55:38,574 INFO L354 Elim1Store]: treesize reduction 54, result has 34.1 percent of original size [2021-07-09 16:55:38,574 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 27 treesize of output 45 [2021-07-09 16:55:38,576 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 16:55:38,589 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 16:55:38,592 INFO L550 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-1 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2021-07-09 16:55:38,592 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:39, output treesize:45 [2021-07-09 16:55:39,031 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2021-07-09 16:55:39,032 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 16:55:39,046 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 16:55:39,048 INFO L550 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2021-07-09 16:55:39,048 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:58, output treesize:54 [2021-07-09 16:55:39,322 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 5 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 20 [2021-07-09 16:55:39,323 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 16:55:39,339 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 16:55:39,342 INFO L550 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2021-07-09 16:55:39,342 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 4 variables, input treesize:65, output treesize:54 [2021-07-09 16:55:39,455 INFO L354 Elim1Store]: treesize reduction 72, result has 33.9 percent of original size [2021-07-09 16:55:39,455 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 6 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 8 case distinctions, treesize of input 32 treesize of output 57 [2021-07-09 16:55:39,456 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 16:55:39,478 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 16:55:39,482 INFO L550 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-1 vars, End of recursive call: 3 dim-0 vars, and 1 xjuncts. [2021-07-09 16:55:39,482 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 4 variables, input treesize:65, output treesize:75 [2021-07-09 16:55:40,121 INFO L354 Elim1Store]: treesize reduction 90, result has 33.8 percent of original size [2021-07-09 16:55:40,121 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 6 select indices, 6 select index equivalence classes, 10 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 10 case distinctions, treesize of input 37 treesize of output 69 [2021-07-09 16:55:40,123 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 16:55:40,169 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 16:55:40,175 INFO L550 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-1 vars, End of recursive call: 3 dim-0 vars, and 1 xjuncts. [2021-07-09 16:55:40,175 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 4 variables, input treesize:86, output treesize:100 [2021-07-09 16:55:40,308 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 9 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 13 [2021-07-09 16:55:40,309 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 16:55:40,342 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 16:55:40,347 INFO L550 ElimStorePlain]: Start of recursive call 1: 4 dim-0 vars, 1 dim-2 vars, End of recursive call: 3 dim-0 vars, and 1 xjuncts. [2021-07-09 16:55:40,347 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 5 variables, input treesize:115, output treesize:100 [2021-07-09 16:55:40,397 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 6 select indices, 6 select index equivalence classes, 15 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 0 case distinctions, treesize of input 37 treesize of output 49 [2021-07-09 16:55:40,399 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 16:55:40,457 INFO L628 ElimStorePlain]: treesize reduction 20, result has 80.0 percent of original size [2021-07-09 16:55:40,463 INFO L550 ElimStorePlain]: Start of recursive call 1: 4 dim-0 vars, 1 dim-1 vars, End of recursive call: 4 dim-0 vars, and 1 xjuncts. [2021-07-09 16:55:40,463 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 5 variables, input treesize:106, output treesize:80 [2021-07-09 16:55:41,037 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 7 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 20 [2021-07-09 16:55:41,043 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 16:55:41,077 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 16:55:41,085 INFO L550 ElimStorePlain]: Start of recursive call 1: 7 dim-0 vars, 1 dim-2 vars, End of recursive call: 5 dim-0 vars, and 1 xjuncts. [2021-07-09 16:55:41,085 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 8 variables, input treesize:91, output treesize:80 [2021-07-09 16:55:41,855 WARN L313 ript$VariableManager]: TermVariabe |thread_usbThread1of1ForFork0_ieee80211_deregister_hw_~#status~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:55:41,913 INFO L354 Elim1Store]: treesize reduction 48, result has 46.1 percent of original size [2021-07-09 16:55:41,913 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select index equivalence classes, 10 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 11 case distinctions, treesize of input 36 treesize of output 62 [2021-07-09 16:55:41,916 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 16:55:41,950 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 16:55:41,951 INFO L550 ElimStorePlain]: Start of recursive call 1: 5 dim-0 vars, 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-07-09 16:55:41,951 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 6 variables, input treesize:85, output treesize:14 [2021-07-09 16:55:41,991 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 13 [2021-07-09 16:55:41,992 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 16:55:41,995 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 16:55:41,996 INFO L550 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-07-09 16:55:41,996 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:29, output treesize:9 [2021-07-09 16:55:42,026 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 9 [2021-07-09 16:55:42,027 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 16:55:42,029 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 16:55:42,029 INFO L550 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-07-09 16:55:42,029 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:17, output treesize:5 [2021-07-09 16:55:42,297 INFO L134 CoverageAnalysis]: Checked inductivity of 411 backedges. 15 proven. 390 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2021-07-09 16:55:42,297 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1400287748] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-09 16:55:42,297 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-07-09 16:55:42,298 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [18, 21] total 37 [2021-07-09 16:55:42,298 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1049659815] [2021-07-09 16:55:42,298 INFO L462 AbstractCegarLoop]: Interpolant automaton has 37 states [2021-07-09 16:55:42,298 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 16:55:42,298 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 37 interpolants. [2021-07-09 16:55:42,298 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=190, Invalid=1142, Unknown=0, NotChecked=0, Total=1332 [2021-07-09 16:55:42,299 INFO L87 Difference]: Start difference. First operand 31877 states and 93346 transitions. Second operand has 37 states, 37 states have (on average 16.243243243243242) internal successors, (601), 37 states have internal predecessors, (601), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:55:45,267 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 16:55:45,267 INFO L93 Difference]: Finished difference Result 46054 states and 126148 transitions. [2021-07-09 16:55:45,267 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 39 states. [2021-07-09 16:55:45,267 INFO L78 Accepts]: Start accepts. Automaton has has 37 states, 37 states have (on average 16.243243243243242) internal successors, (601), 37 states have internal predecessors, (601), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 317 [2021-07-09 16:55:45,267 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 16:55:45,354 INFO L225 Difference]: With dead ends: 46054 [2021-07-09 16:55:45,354 INFO L226 Difference]: Without dead ends: 46054 [2021-07-09 16:55:45,354 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 374 GetRequests, 302 SyntacticMatches, 4 SemanticMatches, 68 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1343 ImplicationChecksByTransitivity, 2536.3ms TimeCoverageRelationStatistics Valid=636, Invalid=4194, Unknown=0, NotChecked=0, Total=4830 [2021-07-09 16:55:45,458 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46054 states. [2021-07-09 16:55:45,921 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46054 to 33503. [2021-07-09 16:55:45,963 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 33503 states, 33501 states have (on average 2.9348974657472913) internal successors, (98322), 33502 states have internal predecessors, (98322), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:55:46,035 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33503 states to 33503 states and 98322 transitions. [2021-07-09 16:55:46,036 INFO L78 Accepts]: Start accepts. Automaton has 33503 states and 98322 transitions. Word has length 317 [2021-07-09 16:55:46,036 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 16:55:46,036 INFO L482 AbstractCegarLoop]: Abstraction has 33503 states and 98322 transitions. [2021-07-09 16:55:46,036 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 37 states, 37 states have (on average 16.243243243243242) internal successors, (601), 37 states have internal predecessors, (601), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:55:46,036 INFO L276 IsEmpty]: Start isEmpty. Operand 33503 states and 98322 transitions. [2021-07-09 16:55:46,089 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 318 [2021-07-09 16:55:46,090 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 16:55:46,090 INFO L508 BasicCegarLoop]: trace histogram [7, 7, 7, 6, 6, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-09 16:55:46,304 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 19 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable32 [2021-07-09 16:55:46,305 INFO L430 AbstractCegarLoop]: === Iteration 28 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-09 16:55:46,305 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 16:55:46,305 INFO L82 PathProgramCache]: Analyzing trace with hash -808495130, now seen corresponding path program 19 times [2021-07-09 16:55:46,305 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 16:55:46,305 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2023325877] [2021-07-09 16:55:46,305 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 16:55:46,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 16:55:47,014 INFO L134 CoverageAnalysis]: Checked inductivity of 411 backedges. 9 proven. 396 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2021-07-09 16:55:47,015 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 16:55:47,015 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2023325877] [2021-07-09 16:55:47,015 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2023325877] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-09 16:55:47,015 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1083999825] [2021-07-09 16:55:47,015 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 20 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 20 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-09 16:55:47,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 16:55:47,175 INFO L263 TraceCheckSpWp]: Trace formula consists of 601 conjuncts, 43 conjunts are in the unsatisfiable core [2021-07-09 16:55:47,178 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-09 16:55:47,194 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2021-07-09 16:55:47,195 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 16:55:47,196 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 16:55:47,196 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-07-09 16:55:47,196 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:6, output treesize:5 [2021-07-09 16:55:47,211 INFO L354 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2021-07-09 16:55:47,211 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 17 treesize of output 21 [2021-07-09 16:55:47,212 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 16:55:47,216 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 16:55:47,216 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-07-09 16:55:47,216 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:17, output treesize:15 [2021-07-09 16:55:47,270 INFO L354 Elim1Store]: treesize reduction 36, result has 34.5 percent of original size [2021-07-09 16:55:47,270 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 22 treesize of output 33 [2021-07-09 16:55:47,272 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 16:55:47,278 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 16:55:47,279 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2021-07-09 16:55:47,279 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:26, output treesize:28 [2021-07-09 16:55:47,557 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2021-07-09 16:55:47,558 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 16:55:47,567 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 16:55:47,568 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2021-07-09 16:55:47,568 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:41, output treesize:37 [2021-07-09 16:55:47,763 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 20 [2021-07-09 16:55:47,764 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 16:55:47,776 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 16:55:47,777 INFO L550 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2021-07-09 16:55:47,777 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:48, output treesize:37 [2021-07-09 16:55:47,854 INFO L354 Elim1Store]: treesize reduction 54, result has 34.1 percent of original size [2021-07-09 16:55:47,854 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 27 treesize of output 45 [2021-07-09 16:55:47,855 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 16:55:47,870 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 16:55:47,873 INFO L550 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-1 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2021-07-09 16:55:47,873 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:48, output treesize:54 [2021-07-09 16:55:48,606 INFO L354 Elim1Store]: treesize reduction 72, result has 33.9 percent of original size [2021-07-09 16:55:48,607 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 6 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 8 case distinctions, treesize of input 32 treesize of output 57 [2021-07-09 16:55:48,608 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 16:55:48,631 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 16:55:48,635 INFO L550 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-1 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2021-07-09 16:55:48,635 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:65, output treesize:75 [2021-07-09 16:55:48,762 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 7 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 13 [2021-07-09 16:55:48,763 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 16:55:48,788 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 16:55:48,792 INFO L550 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2021-07-09 16:55:48,792 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 4 variables, input treesize:90, output treesize:75 [2021-07-09 16:55:48,830 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 10 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 41 [2021-07-09 16:55:48,832 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 16:55:48,871 INFO L628 ElimStorePlain]: treesize reduction 16, result has 78.7 percent of original size [2021-07-09 16:55:48,875 INFO L550 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-1 vars, End of recursive call: 3 dim-0 vars, and 1 xjuncts. [2021-07-09 16:55:48,875 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 4 variables, input treesize:81, output treesize:59 [2021-07-09 16:55:49,292 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 5 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 20 [2021-07-09 16:55:49,293 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 16:55:49,312 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 16:55:49,318 INFO L550 ElimStorePlain]: Start of recursive call 1: 6 dim-0 vars, 1 dim-2 vars, End of recursive call: 4 dim-0 vars, and 1 xjuncts. [2021-07-09 16:55:49,318 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 7 variables, input treesize:70, output treesize:59 [2021-07-09 16:55:49,893 WARN L313 ript$VariableManager]: TermVariabe |thread_usbThread1of1ForFork0_ieee80211_deregister_hw_~#status~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:55:49,936 INFO L354 Elim1Store]: treesize reduction 40, result has 45.2 percent of original size [2021-07-09 16:55:49,937 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 6 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 9 case distinctions, treesize of input 31 treesize of output 51 [2021-07-09 16:55:49,939 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 16:55:49,960 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 16:55:49,961 INFO L550 ElimStorePlain]: Start of recursive call 1: 4 dim-0 vars, 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-07-09 16:55:49,961 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 5 variables, input treesize:64, output treesize:14 [2021-07-09 16:55:49,999 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 13 [2021-07-09 16:55:50,000 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 16:55:50,003 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 16:55:50,004 INFO L550 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-07-09 16:55:50,004 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:29, output treesize:9 [2021-07-09 16:55:50,086 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 9 [2021-07-09 16:55:50,087 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 16:55:50,088 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 16:55:50,089 INFO L550 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-07-09 16:55:50,089 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:17, output treesize:5 [2021-07-09 16:55:50,290 INFO L134 CoverageAnalysis]: Checked inductivity of 411 backedges. 14 proven. 391 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2021-07-09 16:55:50,290 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1083999825] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-09 16:55:50,290 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-07-09 16:55:50,290 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [19, 22] total 38 [2021-07-09 16:55:50,290 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1556810533] [2021-07-09 16:55:50,291 INFO L462 AbstractCegarLoop]: Interpolant automaton has 38 states [2021-07-09 16:55:50,291 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 16:55:50,291 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 38 interpolants. [2021-07-09 16:55:50,291 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=169, Invalid=1237, Unknown=0, NotChecked=0, Total=1406 [2021-07-09 16:55:50,291 INFO L87 Difference]: Start difference. First operand 33503 states and 98322 transitions. Second operand has 38 states, 38 states have (on average 15.868421052631579) internal successors, (603), 38 states have internal predecessors, (603), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:55:51,316 WARN L205 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 46 [2021-07-09 16:55:52,153 WARN L205 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 50 [2021-07-09 16:55:53,308 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 16:55:53,309 INFO L93 Difference]: Finished difference Result 39388 states and 111412 transitions. [2021-07-09 16:55:53,309 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2021-07-09 16:55:53,309 INFO L78 Accepts]: Start accepts. Automaton has has 38 states, 38 states have (on average 15.868421052631579) internal successors, (603), 38 states have internal predecessors, (603), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 317 [2021-07-09 16:55:53,309 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 16:55:53,380 INFO L225 Difference]: With dead ends: 39388 [2021-07-09 16:55:53,380 INFO L226 Difference]: Without dead ends: 39388 [2021-07-09 16:55:53,381 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 365 GetRequests, 301 SyntacticMatches, 4 SemanticMatches, 60 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 842 ImplicationChecksByTransitivity, 2466.9ms TimeCoverageRelationStatistics Valid=475, Invalid=3307, Unknown=0, NotChecked=0, Total=3782 [2021-07-09 16:55:53,470 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39388 states. [2021-07-09 16:55:53,859 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39388 to 34283. [2021-07-09 16:55:53,902 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 34283 states, 34281 states have (on average 2.9386540649339286) internal successors, (100740), 34282 states have internal predecessors, (100740), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:55:53,975 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34283 states to 34283 states and 100740 transitions. [2021-07-09 16:55:53,975 INFO L78 Accepts]: Start accepts. Automaton has 34283 states and 100740 transitions. Word has length 317 [2021-07-09 16:55:53,975 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 16:55:53,975 INFO L482 AbstractCegarLoop]: Abstraction has 34283 states and 100740 transitions. [2021-07-09 16:55:53,975 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 38 states, 38 states have (on average 15.868421052631579) internal successors, (603), 38 states have internal predecessors, (603), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:55:53,975 INFO L276 IsEmpty]: Start isEmpty. Operand 34283 states and 100740 transitions. [2021-07-09 16:55:54,026 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 318 [2021-07-09 16:55:54,026 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 16:55:54,027 INFO L508 BasicCegarLoop]: trace histogram [7, 7, 7, 6, 6, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-09 16:55:54,241 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 20 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable33 [2021-07-09 16:55:54,241 INFO L430 AbstractCegarLoop]: === Iteration 29 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-09 16:55:54,241 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 16:55:54,241 INFO L82 PathProgramCache]: Analyzing trace with hash -1737238350, now seen corresponding path program 20 times [2021-07-09 16:55:54,241 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 16:55:54,241 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [946387126] [2021-07-09 16:55:54,241 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 16:55:54,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 16:55:55,096 INFO L134 CoverageAnalysis]: Checked inductivity of 411 backedges. 9 proven. 390 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2021-07-09 16:55:55,096 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 16:55:55,096 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [946387126] [2021-07-09 16:55:55,096 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [946387126] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-09 16:55:55,097 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [625627813] [2021-07-09 16:55:55,097 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 21 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 21 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-09 16:55:55,260 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-07-09 16:55:55,260 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-07-09 16:55:55,262 INFO L263 TraceCheckSpWp]: Trace formula consists of 601 conjuncts, 45 conjunts are in the unsatisfiable core [2021-07-09 16:55:55,266 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-09 16:55:55,276 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2021-07-09 16:55:55,277 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 16:55:55,278 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 16:55:55,278 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-07-09 16:55:55,278 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:6, output treesize:5 [2021-07-09 16:55:55,294 INFO L354 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2021-07-09 16:55:55,294 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 17 treesize of output 21 [2021-07-09 16:55:55,295 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 16:55:55,299 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 16:55:55,299 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-07-09 16:55:55,299 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:17, output treesize:15 [2021-07-09 16:55:55,345 INFO L354 Elim1Store]: treesize reduction 36, result has 34.5 percent of original size [2021-07-09 16:55:55,345 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 22 treesize of output 33 [2021-07-09 16:55:55,346 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 16:55:55,353 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 16:55:55,354 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2021-07-09 16:55:55,355 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:26, output treesize:28 [2021-07-09 16:55:55,598 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2021-07-09 16:55:55,599 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 16:55:55,609 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 16:55:55,610 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2021-07-09 16:55:55,610 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:41, output treesize:37 [2021-07-09 16:55:55,807 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 20 [2021-07-09 16:55:55,808 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 16:55:55,819 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 16:55:55,821 INFO L550 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2021-07-09 16:55:55,821 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:48, output treesize:37 [2021-07-09 16:55:55,896 INFO L354 Elim1Store]: treesize reduction 54, result has 34.1 percent of original size [2021-07-09 16:55:55,896 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 27 treesize of output 45 [2021-07-09 16:55:55,898 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 16:55:55,913 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 16:55:55,916 INFO L550 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-1 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2021-07-09 16:55:55,916 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:48, output treesize:54 [2021-07-09 16:55:56,463 INFO L354 Elim1Store]: treesize reduction 72, result has 33.9 percent of original size [2021-07-09 16:55:56,464 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 6 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 8 case distinctions, treesize of input 32 treesize of output 57 [2021-07-09 16:55:56,465 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 16:55:56,489 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 16:55:56,492 INFO L550 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-1 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2021-07-09 16:55:56,492 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:65, output treesize:75 [2021-07-09 16:55:56,599 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 7 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 13 [2021-07-09 16:55:56,600 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 16:55:56,625 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 16:55:56,628 INFO L550 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2021-07-09 16:55:56,629 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 4 variables, input treesize:90, output treesize:75 [2021-07-09 16:55:56,666 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 10 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 41 [2021-07-09 16:55:56,667 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 16:55:56,709 INFO L628 ElimStorePlain]: treesize reduction 16, result has 78.7 percent of original size [2021-07-09 16:55:56,712 INFO L550 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-1 vars, End of recursive call: 3 dim-0 vars, and 1 xjuncts. [2021-07-09 16:55:56,713 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 4 variables, input treesize:81, output treesize:59 [2021-07-09 16:55:57,121 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 5 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 20 [2021-07-09 16:55:57,122 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 16:55:57,141 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 16:55:57,145 INFO L550 ElimStorePlain]: Start of recursive call 1: 4 dim-0 vars, 1 dim-2 vars, End of recursive call: 3 dim-0 vars, and 1 xjuncts. [2021-07-09 16:55:57,145 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 5 variables, input treesize:70, output treesize:59 [2021-07-09 16:55:57,568 WARN L313 ript$VariableManager]: TermVariabe |thread_usbThread1of1ForFork0_ieee80211_deregister_hw_~#status~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:55:57,641 INFO L354 Elim1Store]: treesize reduction 122, result has 27.4 percent of original size [2021-07-09 16:55:57,642 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 6 select indices, 6 select index equivalence classes, 6 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 14 case distinctions, treesize of input 37 treesize of output 69 [2021-07-09 16:55:57,659 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 16:55:57,689 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 16:55:57,693 INFO L550 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-1 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2021-07-09 16:55:57,693 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 4 variables, input treesize:70, output treesize:75 [2021-07-09 16:55:57,806 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 7 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 13 [2021-07-09 16:55:57,807 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 16:55:57,838 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 16:55:57,842 INFO L550 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2021-07-09 16:55:57,842 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 4 variables, input treesize:90, output treesize:75 [2021-07-09 16:55:57,913 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 10 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 41 [2021-07-09 16:55:57,914 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 16:55:57,971 INFO L628 ElimStorePlain]: treesize reduction 16, result has 78.7 percent of original size [2021-07-09 16:55:57,984 INFO L550 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-1 vars, End of recursive call: 3 dim-0 vars, and 1 xjuncts. [2021-07-09 16:55:57,985 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 4 variables, input treesize:81, output treesize:59 [2021-07-09 16:55:58,321 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 5 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 20 [2021-07-09 16:55:58,322 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 16:55:58,341 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 16:55:58,346 INFO L550 ElimStorePlain]: Start of recursive call 1: 6 dim-0 vars, 1 dim-2 vars, End of recursive call: 4 dim-0 vars, and 1 xjuncts. [2021-07-09 16:55:58,346 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 7 variables, input treesize:70, output treesize:59 [2021-07-09 16:55:58,921 WARN L313 ript$VariableManager]: TermVariabe |thread_usbThread1of1ForFork0_ieee80211_deregister_hw_~#status~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:55:58,966 INFO L354 Elim1Store]: treesize reduction 40, result has 45.2 percent of original size [2021-07-09 16:55:58,967 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 6 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 9 case distinctions, treesize of input 31 treesize of output 51 [2021-07-09 16:55:58,970 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 16:55:58,991 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 16:55:58,992 INFO L550 ElimStorePlain]: Start of recursive call 1: 4 dim-0 vars, 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-07-09 16:55:58,992 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 5 variables, input treesize:64, output treesize:14 [2021-07-09 16:55:59,030 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 13 [2021-07-09 16:55:59,030 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 16:55:59,034 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 16:55:59,034 INFO L550 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-07-09 16:55:59,034 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:29, output treesize:9 [2021-07-09 16:55:59,082 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 9 [2021-07-09 16:55:59,083 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 16:55:59,085 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 16:55:59,085 INFO L550 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-07-09 16:55:59,085 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:17, output treesize:5 [2021-07-09 16:55:59,285 INFO L134 CoverageAnalysis]: Checked inductivity of 411 backedges. 15 proven. 390 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2021-07-09 16:55:59,285 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [625627813] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-09 16:55:59,286 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-07-09 16:55:59,286 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [19, 21] total 37 [2021-07-09 16:55:59,286 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [517079807] [2021-07-09 16:55:59,286 INFO L462 AbstractCegarLoop]: Interpolant automaton has 37 states [2021-07-09 16:55:59,286 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 16:55:59,286 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 37 interpolants. [2021-07-09 16:55:59,287 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=168, Invalid=1164, Unknown=0, NotChecked=0, Total=1332 [2021-07-09 16:55:59,287 INFO L87 Difference]: Start difference. First operand 34283 states and 100740 transitions. Second operand has 37 states, 37 states have (on average 16.16216216216216) internal successors, (598), 37 states have internal predecessors, (598), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:56:02,343 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 16:56:02,343 INFO L93 Difference]: Finished difference Result 41769 states and 116954 transitions. [2021-07-09 16:56:02,344 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2021-07-09 16:56:02,344 INFO L78 Accepts]: Start accepts. Automaton has has 37 states, 37 states have (on average 16.16216216216216) internal successors, (598), 37 states have internal predecessors, (598), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 317 [2021-07-09 16:56:02,344 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 16:56:02,426 INFO L225 Difference]: With dead ends: 41769 [2021-07-09 16:56:02,426 INFO L226 Difference]: Without dead ends: 41769 [2021-07-09 16:56:02,427 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 372 GetRequests, 305 SyntacticMatches, 6 SemanticMatches, 61 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 944 ImplicationChecksByTransitivity, 2363.1ms TimeCoverageRelationStatistics Valid=491, Invalid=3415, Unknown=0, NotChecked=0, Total=3906 [2021-07-09 16:56:02,521 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41769 states. [2021-07-09 16:56:02,943 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41769 to 34315. [2021-07-09 16:56:02,986 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 34315 states, 34313 states have (on average 2.937895258356891) internal successors, (100808), 34314 states have internal predecessors, (100808), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:56:03,061 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34315 states to 34315 states and 100808 transitions. [2021-07-09 16:56:03,061 INFO L78 Accepts]: Start accepts. Automaton has 34315 states and 100808 transitions. Word has length 317 [2021-07-09 16:56:03,062 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 16:56:03,062 INFO L482 AbstractCegarLoop]: Abstraction has 34315 states and 100808 transitions. [2021-07-09 16:56:03,062 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 37 states, 37 states have (on average 16.16216216216216) internal successors, (598), 37 states have internal predecessors, (598), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:56:03,062 INFO L276 IsEmpty]: Start isEmpty. Operand 34315 states and 100808 transitions. [2021-07-09 16:56:03,113 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 318 [2021-07-09 16:56:03,114 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 16:56:03,114 INFO L508 BasicCegarLoop]: trace histogram [7, 7, 7, 6, 6, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-09 16:56:03,330 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 21 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable35 [2021-07-09 16:56:03,331 INFO L430 AbstractCegarLoop]: === Iteration 30 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-09 16:56:03,331 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 16:56:03,331 INFO L82 PathProgramCache]: Analyzing trace with hash -238232784, now seen corresponding path program 21 times [2021-07-09 16:56:03,331 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 16:56:03,331 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1296837274] [2021-07-09 16:56:03,331 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 16:56:03,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 16:56:04,138 INFO L134 CoverageAnalysis]: Checked inductivity of 411 backedges. 9 proven. 390 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2021-07-09 16:56:04,138 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 16:56:04,138 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1296837274] [2021-07-09 16:56:04,138 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1296837274] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-09 16:56:04,138 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1790696308] [2021-07-09 16:56:04,138 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 22 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 22 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-09 16:56:04,565 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 7 check-sat command(s) [2021-07-09 16:56:04,565 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-07-09 16:56:04,568 INFO L263 TraceCheckSpWp]: Trace formula consists of 601 conjuncts, 49 conjunts are in the unsatisfiable core [2021-07-09 16:56:04,571 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-09 16:56:04,582 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2021-07-09 16:56:04,582 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 16:56:04,584 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 16:56:04,584 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-07-09 16:56:04,584 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:6, output treesize:5 [2021-07-09 16:56:04,600 INFO L354 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2021-07-09 16:56:04,600 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 17 treesize of output 21 [2021-07-09 16:56:04,602 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 16:56:04,605 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 16:56:04,606 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-07-09 16:56:04,606 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:17, output treesize:15 [2021-07-09 16:56:04,655 INFO L354 Elim1Store]: treesize reduction 36, result has 34.5 percent of original size [2021-07-09 16:56:04,656 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 22 treesize of output 33 [2021-07-09 16:56:04,657 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 16:56:04,665 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 16:56:04,666 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2021-07-09 16:56:04,666 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:26, output treesize:28 [2021-07-09 16:56:04,910 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2021-07-09 16:56:04,910 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 16:56:04,920 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 16:56:04,921 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2021-07-09 16:56:04,921 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:41, output treesize:37 [2021-07-09 16:56:05,112 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 20 [2021-07-09 16:56:05,113 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 16:56:05,124 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 16:56:05,126 INFO L550 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2021-07-09 16:56:05,126 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:48, output treesize:37 [2021-07-09 16:56:05,200 INFO L354 Elim1Store]: treesize reduction 54, result has 34.1 percent of original size [2021-07-09 16:56:05,200 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 27 treesize of output 45 [2021-07-09 16:56:05,202 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 16:56:05,216 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 16:56:05,219 INFO L550 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-1 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2021-07-09 16:56:05,219 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:48, output treesize:54 [2021-07-09 16:56:05,675 INFO L354 Elim1Store]: treesize reduction 72, result has 33.9 percent of original size [2021-07-09 16:56:05,675 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 6 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 8 case distinctions, treesize of input 32 treesize of output 57 [2021-07-09 16:56:05,677 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 16:56:05,700 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 16:56:05,704 INFO L550 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-1 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2021-07-09 16:56:05,704 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:65, output treesize:75 [2021-07-09 16:56:05,812 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 7 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 13 [2021-07-09 16:56:05,813 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 16:56:05,838 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 16:56:05,842 INFO L550 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2021-07-09 16:56:05,842 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 4 variables, input treesize:90, output treesize:75 [2021-07-09 16:56:05,879 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 10 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 41 [2021-07-09 16:56:05,880 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 16:56:06,028 WARN L205 SmtUtils]: Spent 148.00 ms on a formula simplification. DAG size of input: 47 DAG size of output: 39 [2021-07-09 16:56:06,029 INFO L628 ElimStorePlain]: treesize reduction 16, result has 78.7 percent of original size [2021-07-09 16:56:06,033 INFO L550 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-1 vars, End of recursive call: 3 dim-0 vars, and 1 xjuncts. [2021-07-09 16:56:06,033 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 4 variables, input treesize:81, output treesize:59 [2021-07-09 16:56:06,434 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 5 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 20 [2021-07-09 16:56:06,435 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 16:56:06,454 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 16:56:06,458 INFO L550 ElimStorePlain]: Start of recursive call 1: 4 dim-0 vars, 1 dim-2 vars, End of recursive call: 3 dim-0 vars, and 1 xjuncts. [2021-07-09 16:56:06,458 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 5 variables, input treesize:70, output treesize:59 [2021-07-09 16:56:06,862 WARN L313 ript$VariableManager]: TermVariabe |thread_usbThread1of1ForFork0_ieee80211_deregister_hw_~#status~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:56:06,930 INFO L354 Elim1Store]: treesize reduction 122, result has 27.4 percent of original size [2021-07-09 16:56:06,930 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 6 select indices, 6 select index equivalence classes, 6 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 14 case distinctions, treesize of input 37 treesize of output 69 [2021-07-09 16:56:06,932 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 16:56:06,958 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 16:56:06,962 INFO L550 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-1 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2021-07-09 16:56:06,963 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 4 variables, input treesize:70, output treesize:75 [2021-07-09 16:56:07,069 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 7 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 13 [2021-07-09 16:56:07,070 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 16:56:07,095 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 16:56:07,098 INFO L550 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2021-07-09 16:56:07,098 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 4 variables, input treesize:90, output treesize:75 [2021-07-09 16:56:07,134 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 10 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 41 [2021-07-09 16:56:07,136 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 16:56:07,173 INFO L628 ElimStorePlain]: treesize reduction 16, result has 78.7 percent of original size [2021-07-09 16:56:07,176 INFO L550 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-1 vars, End of recursive call: 3 dim-0 vars, and 1 xjuncts. [2021-07-09 16:56:07,176 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 4 variables, input treesize:81, output treesize:59 [2021-07-09 16:56:07,505 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 5 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 20 [2021-07-09 16:56:07,506 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 16:56:07,525 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 16:56:07,530 INFO L550 ElimStorePlain]: Start of recursive call 1: 6 dim-0 vars, 1 dim-2 vars, End of recursive call: 4 dim-0 vars, and 1 xjuncts. [2021-07-09 16:56:07,530 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 7 variables, input treesize:70, output treesize:59 [2021-07-09 16:56:08,277 WARN L313 ript$VariableManager]: TermVariabe |thread_usbThread1of1ForFork0_ieee80211_deregister_hw_~#status~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:56:08,322 INFO L354 Elim1Store]: treesize reduction 40, result has 45.2 percent of original size [2021-07-09 16:56:08,323 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 6 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 9 case distinctions, treesize of input 31 treesize of output 51 [2021-07-09 16:56:08,325 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 16:56:08,347 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 16:56:08,348 INFO L550 ElimStorePlain]: Start of recursive call 1: 4 dim-0 vars, 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-07-09 16:56:08,348 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 5 variables, input treesize:64, output treesize:14 [2021-07-09 16:56:08,387 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 13 [2021-07-09 16:56:08,388 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 16:56:08,391 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 16:56:08,392 INFO L550 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-07-09 16:56:08,392 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:29, output treesize:9 [2021-07-09 16:56:08,440 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 14 [2021-07-09 16:56:08,441 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 16:56:08,444 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 16:56:08,445 INFO L550 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-07-09 16:56:08,445 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:26, output treesize:11 [2021-07-09 16:56:08,548 INFO L134 CoverageAnalysis]: Checked inductivity of 411 backedges. 15 proven. 390 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2021-07-09 16:56:08,549 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1790696308] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-09 16:56:08,549 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-07-09 16:56:08,549 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [19, 23] total 37 [2021-07-09 16:56:08,549 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1791352647] [2021-07-09 16:56:08,549 INFO L462 AbstractCegarLoop]: Interpolant automaton has 37 states [2021-07-09 16:56:08,549 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 16:56:08,550 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 37 interpolants. [2021-07-09 16:56:08,550 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=170, Invalid=1162, Unknown=0, NotChecked=0, Total=1332 [2021-07-09 16:56:08,550 INFO L87 Difference]: Start difference. First operand 34315 states and 100808 transitions. Second operand has 37 states, 37 states have (on average 15.432432432432432) internal successors, (571), 37 states have internal predecessors, (571), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:56:10,392 WARN L205 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 50 [2021-07-09 16:56:11,289 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 16:56:11,289 INFO L93 Difference]: Finished difference Result 40625 states and 114657 transitions. [2021-07-09 16:56:11,290 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2021-07-09 16:56:11,290 INFO L78 Accepts]: Start accepts. Automaton has has 37 states, 37 states have (on average 15.432432432432432) internal successors, (571), 37 states have internal predecessors, (571), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 317 [2021-07-09 16:56:11,290 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 16:56:11,365 INFO L225 Difference]: With dead ends: 40625 [2021-07-09 16:56:11,365 INFO L226 Difference]: Without dead ends: 40625 [2021-07-09 16:56:11,366 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 373 GetRequests, 304 SyntacticMatches, 7 SemanticMatches, 62 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1078 ImplicationChecksByTransitivity, 2419.3ms TimeCoverageRelationStatistics Valid=486, Invalid=3546, Unknown=0, NotChecked=0, Total=4032 [2021-07-09 16:56:11,455 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40625 states. [2021-07-09 16:56:11,955 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 40625 to 34318. [2021-07-09 16:56:11,996 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 34318 states, 34316 states have (on average 2.9378132649492947) internal successors, (100814), 34317 states have internal predecessors, (100814), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:56:12,069 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34318 states to 34318 states and 100814 transitions. [2021-07-09 16:56:12,069 INFO L78 Accepts]: Start accepts. Automaton has 34318 states and 100814 transitions. Word has length 317 [2021-07-09 16:56:12,070 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 16:56:12,070 INFO L482 AbstractCegarLoop]: Abstraction has 34318 states and 100814 transitions. [2021-07-09 16:56:12,070 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 37 states, 37 states have (on average 15.432432432432432) internal successors, (571), 37 states have internal predecessors, (571), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:56:12,070 INFO L276 IsEmpty]: Start isEmpty. Operand 34318 states and 100814 transitions. [2021-07-09 16:56:12,121 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 318 [2021-07-09 16:56:12,121 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 16:56:12,121 INFO L508 BasicCegarLoop]: trace histogram [7, 7, 7, 6, 6, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-09 16:56:12,336 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 22 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable36 [2021-07-09 16:56:12,337 INFO L430 AbstractCegarLoop]: === Iteration 31 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-09 16:56:12,337 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 16:56:12,337 INFO L82 PathProgramCache]: Analyzing trace with hash 422831496, now seen corresponding path program 22 times [2021-07-09 16:56:12,337 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 16:56:12,337 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2118035741] [2021-07-09 16:56:12,338 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 16:56:12,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 16:56:13,039 INFO L134 CoverageAnalysis]: Checked inductivity of 411 backedges. 9 proven. 390 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2021-07-09 16:56:13,039 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 16:56:13,039 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2118035741] [2021-07-09 16:56:13,039 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2118035741] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-09 16:56:13,039 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [278946571] [2021-07-09 16:56:13,040 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 23 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 23 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-09 16:56:13,442 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-07-09 16:56:13,442 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-07-09 16:56:13,444 INFO L263 TraceCheckSpWp]: Trace formula consists of 601 conjuncts, 50 conjunts are in the unsatisfiable core [2021-07-09 16:56:13,447 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-09 16:56:13,458 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2021-07-09 16:56:13,458 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 16:56:13,460 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 16:56:13,460 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-07-09 16:56:13,460 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:6, output treesize:5 [2021-07-09 16:56:13,475 INFO L354 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2021-07-09 16:56:13,476 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 17 treesize of output 21 [2021-07-09 16:56:13,477 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 16:56:13,481 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 16:56:13,481 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-07-09 16:56:13,481 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:17, output treesize:15 [2021-07-09 16:56:13,529 INFO L354 Elim1Store]: treesize reduction 36, result has 34.5 percent of original size [2021-07-09 16:56:13,530 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 22 treesize of output 33 [2021-07-09 16:56:13,531 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 16:56:13,539 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 16:56:13,540 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2021-07-09 16:56:13,540 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:26, output treesize:28 [2021-07-09 16:56:13,776 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2021-07-09 16:56:13,777 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 16:56:13,786 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 16:56:13,787 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2021-07-09 16:56:13,787 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:41, output treesize:37 [2021-07-09 16:56:13,978 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 20 [2021-07-09 16:56:13,980 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 16:56:13,991 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 16:56:13,992 INFO L550 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2021-07-09 16:56:13,992 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:48, output treesize:37 [2021-07-09 16:56:14,067 INFO L354 Elim1Store]: treesize reduction 54, result has 34.1 percent of original size [2021-07-09 16:56:14,068 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 27 treesize of output 45 [2021-07-09 16:56:14,069 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 16:56:14,084 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 16:56:14,086 INFO L550 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-1 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2021-07-09 16:56:14,087 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:48, output treesize:54 [2021-07-09 16:56:14,672 WARN L205 SmtUtils]: Spent 163.00 ms on a formula simplification that was a NOOP. DAG size: 45 [2021-07-09 16:56:14,836 INFO L354 Elim1Store]: treesize reduction 72, result has 33.9 percent of original size [2021-07-09 16:56:14,836 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 6 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 8 case distinctions, treesize of input 32 treesize of output 57 [2021-07-09 16:56:14,838 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 16:56:14,861 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 16:56:14,865 INFO L550 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-1 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2021-07-09 16:56:14,865 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:65, output treesize:75 [2021-07-09 16:56:14,980 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 7 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 13 [2021-07-09 16:56:14,981 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 16:56:15,007 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 16:56:15,010 INFO L550 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2021-07-09 16:56:15,011 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 4 variables, input treesize:90, output treesize:75 [2021-07-09 16:56:15,048 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 10 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 41 [2021-07-09 16:56:15,049 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 16:56:15,087 INFO L628 ElimStorePlain]: treesize reduction 16, result has 78.7 percent of original size [2021-07-09 16:56:15,091 INFO L550 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-1 vars, End of recursive call: 3 dim-0 vars, and 1 xjuncts. [2021-07-09 16:56:15,091 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 4 variables, input treesize:81, output treesize:59 [2021-07-09 16:56:15,507 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 5 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 20 [2021-07-09 16:56:15,508 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 16:56:15,528 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 16:56:15,532 INFO L550 ElimStorePlain]: Start of recursive call 1: 4 dim-0 vars, 1 dim-2 vars, End of recursive call: 3 dim-0 vars, and 1 xjuncts. [2021-07-09 16:56:15,532 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 5 variables, input treesize:70, output treesize:59 [2021-07-09 16:56:15,953 WARN L313 ript$VariableManager]: TermVariabe |thread_usbThread1of1ForFork0_ieee80211_deregister_hw_~#status~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:56:16,021 INFO L354 Elim1Store]: treesize reduction 122, result has 27.4 percent of original size [2021-07-09 16:56:16,021 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 6 select indices, 6 select index equivalence classes, 6 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 14 case distinctions, treesize of input 37 treesize of output 69 [2021-07-09 16:56:16,023 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 16:56:16,052 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 16:56:16,056 INFO L550 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-1 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2021-07-09 16:56:16,056 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 4 variables, input treesize:70, output treesize:75 [2021-07-09 16:56:16,166 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 7 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 13 [2021-07-09 16:56:16,167 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 16:56:16,192 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 16:56:16,195 INFO L550 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2021-07-09 16:56:16,195 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 4 variables, input treesize:90, output treesize:75 [2021-07-09 16:56:16,232 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 10 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 41 [2021-07-09 16:56:16,233 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 16:56:16,272 INFO L628 ElimStorePlain]: treesize reduction 16, result has 78.7 percent of original size [2021-07-09 16:56:16,275 INFO L550 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-1 vars, End of recursive call: 3 dim-0 vars, and 1 xjuncts. [2021-07-09 16:56:16,275 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 4 variables, input treesize:81, output treesize:59 [2021-07-09 16:56:16,688 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 5 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 20 [2021-07-09 16:56:16,689 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 16:56:16,707 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 16:56:16,711 INFO L550 ElimStorePlain]: Start of recursive call 1: 4 dim-0 vars, 1 dim-2 vars, End of recursive call: 3 dim-0 vars, and 1 xjuncts. [2021-07-09 16:56:16,711 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 5 variables, input treesize:70, output treesize:59 [2021-07-09 16:56:17,118 WARN L313 ript$VariableManager]: TermVariabe |thread_usbThread1of1ForFork0_ieee80211_deregister_hw_~#status~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:56:17,162 INFO L354 Elim1Store]: treesize reduction 40, result has 45.2 percent of original size [2021-07-09 16:56:17,162 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 6 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 9 case distinctions, treesize of input 31 treesize of output 51 [2021-07-09 16:56:17,165 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 16:56:17,185 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 16:56:17,187 INFO L550 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-07-09 16:56:17,187 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 4 variables, input treesize:64, output treesize:22 [2021-07-09 16:56:17,229 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 13 [2021-07-09 16:56:17,230 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 16:56:17,235 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 16:56:17,236 INFO L550 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-07-09 16:56:17,236 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:37, output treesize:14 [2021-07-09 16:56:17,339 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 20 [2021-07-09 16:56:17,340 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 16:56:17,344 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 16:56:17,346 INFO L550 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2021-07-09 16:56:17,346 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:25, output treesize:21 [2021-07-09 16:56:17,500 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 12 [2021-07-09 16:56:17,501 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 16:56:17,504 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 16:56:17,505 INFO L550 ElimStorePlain]: Start of recursive call 1: 4 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-07-09 16:56:17,505 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 5 variables, input treesize:32, output treesize:5 [2021-07-09 16:56:17,576 INFO L134 CoverageAnalysis]: Checked inductivity of 411 backedges. 14 proven. 391 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2021-07-09 16:56:17,576 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [278946571] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-09 16:56:17,576 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-07-09 16:56:17,576 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [20, 23] total 40 [2021-07-09 16:56:17,576 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1509057711] [2021-07-09 16:56:17,577 INFO L462 AbstractCegarLoop]: Interpolant automaton has 40 states [2021-07-09 16:56:17,577 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 16:56:17,577 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 40 interpolants. [2021-07-09 16:56:17,577 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=184, Invalid=1376, Unknown=0, NotChecked=0, Total=1560 [2021-07-09 16:56:17,578 INFO L87 Difference]: Start difference. First operand 34318 states and 100814 transitions. Second operand has 40 states, 40 states have (on average 14.95) internal successors, (598), 40 states have internal predecessors, (598), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:56:18,920 WARN L205 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 46 [2021-07-09 16:56:19,713 WARN L205 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 50 [2021-07-09 16:56:21,927 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 16:56:21,928 INFO L93 Difference]: Finished difference Result 40196 states and 113895 transitions. [2021-07-09 16:56:21,928 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2021-07-09 16:56:21,928 INFO L78 Accepts]: Start accepts. Automaton has has 40 states, 40 states have (on average 14.95) internal successors, (598), 40 states have internal predecessors, (598), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 317 [2021-07-09 16:56:21,928 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 16:56:22,006 INFO L225 Difference]: With dead ends: 40196 [2021-07-09 16:56:22,007 INFO L226 Difference]: Without dead ends: 40196 [2021-07-09 16:56:22,007 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 380 GetRequests, 304 SyntacticMatches, 6 SemanticMatches, 70 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1169 ImplicationChecksByTransitivity, 3328.9ms TimeCoverageRelationStatistics Valid=603, Invalid=4509, Unknown=0, NotChecked=0, Total=5112 [2021-07-09 16:56:22,102 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40196 states. [2021-07-09 16:56:22,599 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 40196 to 34283. [2021-07-09 16:56:22,643 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 34283 states, 34281 states have (on average 2.9386540649339286) internal successors, (100740), 34282 states have internal predecessors, (100740), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:56:22,718 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34283 states to 34283 states and 100740 transitions. [2021-07-09 16:56:22,719 INFO L78 Accepts]: Start accepts. Automaton has 34283 states and 100740 transitions. Word has length 317 [2021-07-09 16:56:22,719 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 16:56:22,719 INFO L482 AbstractCegarLoop]: Abstraction has 34283 states and 100740 transitions. [2021-07-09 16:56:22,719 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 40 states, 40 states have (on average 14.95) internal successors, (598), 40 states have internal predecessors, (598), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:56:22,719 INFO L276 IsEmpty]: Start isEmpty. Operand 34283 states and 100740 transitions. [2021-07-09 16:56:22,771 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 318 [2021-07-09 16:56:22,772 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 16:56:22,772 INFO L508 BasicCegarLoop]: trace histogram [7, 7, 7, 6, 6, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-09 16:56:22,989 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable38,23 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-09 16:56:22,989 INFO L430 AbstractCegarLoop]: === Iteration 32 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-09 16:56:22,989 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 16:56:22,989 INFO L82 PathProgramCache]: Analyzing trace with hash 707847126, now seen corresponding path program 23 times [2021-07-09 16:56:22,990 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 16:56:22,990 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1583171556] [2021-07-09 16:56:22,990 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 16:56:23,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 16:56:23,771 INFO L134 CoverageAnalysis]: Checked inductivity of 411 backedges. 9 proven. 396 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2021-07-09 16:56:23,772 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 16:56:23,772 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1583171556] [2021-07-09 16:56:23,772 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1583171556] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-09 16:56:23,772 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1999563176] [2021-07-09 16:56:23,772 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 24 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 24 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-09 16:56:23,972 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 7 check-sat command(s) [2021-07-09 16:56:23,972 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-07-09 16:56:23,974 INFO L263 TraceCheckSpWp]: Trace formula consists of 601 conjuncts, 43 conjunts are in the unsatisfiable core [2021-07-09 16:56:23,977 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-09 16:56:23,987 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2021-07-09 16:56:23,988 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 16:56:23,989 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 16:56:23,989 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-07-09 16:56:23,989 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:6, output treesize:5 [2021-07-09 16:56:24,003 INFO L354 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2021-07-09 16:56:24,003 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 17 treesize of output 21 [2021-07-09 16:56:24,004 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 16:56:24,008 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 16:56:24,008 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-07-09 16:56:24,008 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:17, output treesize:15 [2021-07-09 16:56:24,050 INFO L354 Elim1Store]: treesize reduction 36, result has 34.5 percent of original size [2021-07-09 16:56:24,050 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 22 treesize of output 33 [2021-07-09 16:56:24,051 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 16:56:24,057 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 16:56:24,059 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2021-07-09 16:56:24,059 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:26, output treesize:28 [2021-07-09 16:56:24,291 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2021-07-09 16:56:24,292 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 16:56:24,301 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 16:56:24,303 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2021-07-09 16:56:24,303 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:41, output treesize:37 [2021-07-09 16:56:24,488 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 20 [2021-07-09 16:56:24,489 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 16:56:24,500 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 16:56:24,502 INFO L550 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2021-07-09 16:56:24,502 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:48, output treesize:37 [2021-07-09 16:56:25,105 INFO L354 Elim1Store]: treesize reduction 54, result has 34.1 percent of original size [2021-07-09 16:56:25,106 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 27 treesize of output 45 [2021-07-09 16:56:25,107 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 16:56:25,124 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 16:56:25,126 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2021-07-09 16:56:25,126 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:48, output treesize:54 [2021-07-09 16:56:25,245 INFO L354 Elim1Store]: treesize reduction 72, result has 33.9 percent of original size [2021-07-09 16:56:25,246 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 6 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 8 case distinctions, treesize of input 32 treesize of output 57 [2021-07-09 16:56:25,247 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 16:56:25,269 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 16:56:25,272 INFO L550 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-1 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2021-07-09 16:56:25,272 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:65, output treesize:75 [2021-07-09 16:56:25,356 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 7 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 13 [2021-07-09 16:56:25,357 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 16:56:25,378 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 16:56:25,381 INFO L550 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2021-07-09 16:56:25,381 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 4 variables, input treesize:90, output treesize:75 [2021-07-09 16:56:25,414 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 10 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 41 [2021-07-09 16:56:25,415 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 16:56:25,450 INFO L628 ElimStorePlain]: treesize reduction 16, result has 78.7 percent of original size [2021-07-09 16:56:25,453 INFO L550 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-1 vars, End of recursive call: 3 dim-0 vars, and 1 xjuncts. [2021-07-09 16:56:25,453 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 4 variables, input treesize:81, output treesize:59 [2021-07-09 16:56:25,816 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 5 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 20 [2021-07-09 16:56:25,817 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 16:56:25,834 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 16:56:25,838 INFO L550 ElimStorePlain]: Start of recursive call 1: 6 dim-0 vars, 1 dim-2 vars, End of recursive call: 4 dim-0 vars, and 1 xjuncts. [2021-07-09 16:56:25,838 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 7 variables, input treesize:70, output treesize:59 [2021-07-09 16:56:26,382 WARN L313 ript$VariableManager]: TermVariabe |thread_usbThread1of1ForFork0_ieee80211_deregister_hw_~#status~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:56:26,578 WARN L205 SmtUtils]: Spent 184.00 ms on a formula simplification. DAG size of input: 49 DAG size of output: 23 [2021-07-09 16:56:26,578 INFO L354 Elim1Store]: treesize reduction 40, result has 45.2 percent of original size [2021-07-09 16:56:26,578 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 6 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 9 case distinctions, treesize of input 31 treesize of output 51 [2021-07-09 16:56:26,581 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 16:56:26,602 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 16:56:26,603 INFO L550 ElimStorePlain]: Start of recursive call 1: 4 dim-0 vars, 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-07-09 16:56:26,603 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 5 variables, input treesize:64, output treesize:14 [2021-07-09 16:56:26,640 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 13 [2021-07-09 16:56:26,641 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 16:56:26,644 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 16:56:26,645 INFO L550 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-07-09 16:56:26,645 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:29, output treesize:9 [2021-07-09 16:56:26,672 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 9 [2021-07-09 16:56:26,673 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 16:56:26,675 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 16:56:26,675 INFO L550 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-07-09 16:56:26,675 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:17, output treesize:5 [2021-07-09 16:56:26,927 INFO L134 CoverageAnalysis]: Checked inductivity of 411 backedges. 14 proven. 391 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2021-07-09 16:56:26,927 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1999563176] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-09 16:56:26,927 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-07-09 16:56:26,927 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 22] total 36 [2021-07-09 16:56:26,928 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1082009130] [2021-07-09 16:56:26,928 INFO L462 AbstractCegarLoop]: Interpolant automaton has 36 states [2021-07-09 16:56:26,929 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 16:56:26,929 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 36 interpolants. [2021-07-09 16:56:26,929 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=164, Invalid=1096, Unknown=0, NotChecked=0, Total=1260 [2021-07-09 16:56:26,929 INFO L87 Difference]: Start difference. First operand 34283 states and 100740 transitions. Second operand has 36 states, 36 states have (on average 16.75) internal successors, (603), 36 states have internal predecessors, (603), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:56:27,695 WARN L205 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 37 DAG size of output: 37 [2021-07-09 16:56:30,660 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 16:56:30,661 INFO L93 Difference]: Finished difference Result 49444 states and 138151 transitions. [2021-07-09 16:56:30,661 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 43 states. [2021-07-09 16:56:30,661 INFO L78 Accepts]: Start accepts. Automaton has has 36 states, 36 states have (on average 16.75) internal successors, (603), 36 states have internal predecessors, (603), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 317 [2021-07-09 16:56:30,661 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 16:56:30,767 INFO L225 Difference]: With dead ends: 49444 [2021-07-09 16:56:30,767 INFO L226 Difference]: Without dead ends: 49444 [2021-07-09 16:56:30,769 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 376 GetRequests, 301 SyntacticMatches, 6 SemanticMatches, 69 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1305 ImplicationChecksByTransitivity, 2532.7ms TimeCoverageRelationStatistics Valid=583, Invalid=4387, Unknown=0, NotChecked=0, Total=4970 [2021-07-09 16:56:30,922 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 49444 states. [2021-07-09 16:56:31,442 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 49444 to 34316. [2021-07-09 16:56:31,484 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 34316 states, 34314 states have (on average 2.9378679256280233) internal successors, (100810), 34315 states have internal predecessors, (100810), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:56:31,558 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34316 states to 34316 states and 100810 transitions. [2021-07-09 16:56:31,558 INFO L78 Accepts]: Start accepts. Automaton has 34316 states and 100810 transitions. Word has length 317 [2021-07-09 16:56:31,558 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 16:56:31,558 INFO L482 AbstractCegarLoop]: Abstraction has 34316 states and 100810 transitions. [2021-07-09 16:56:31,558 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 36 states, 36 states have (on average 16.75) internal successors, (603), 36 states have internal predecessors, (603), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:56:31,558 INFO L276 IsEmpty]: Start isEmpty. Operand 34316 states and 100810 transitions. [2021-07-09 16:56:31,609 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 318 [2021-07-09 16:56:31,609 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 16:56:31,609 INFO L508 BasicCegarLoop]: trace histogram [7, 7, 7, 6, 6, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-09 16:56:31,826 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 24 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable40 [2021-07-09 16:56:31,827 INFO L430 AbstractCegarLoop]: === Iteration 33 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-09 16:56:31,827 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 16:56:31,827 INFO L82 PathProgramCache]: Analyzing trace with hash -499935148, now seen corresponding path program 24 times [2021-07-09 16:56:31,828 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 16:56:31,828 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [486932120] [2021-07-09 16:56:31,828 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 16:56:31,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 16:56:32,545 INFO L134 CoverageAnalysis]: Checked inductivity of 411 backedges. 9 proven. 396 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2021-07-09 16:56:32,545 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 16:56:32,545 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [486932120] [2021-07-09 16:56:32,546 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [486932120] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-09 16:56:32,546 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [218454369] [2021-07-09 16:56:32,546 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 25 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 25 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-09 16:56:32,986 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 7 check-sat command(s) [2021-07-09 16:56:32,986 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-07-09 16:56:32,989 INFO L263 TraceCheckSpWp]: Trace formula consists of 601 conjuncts, 39 conjunts are in the unsatisfiable core [2021-07-09 16:56:32,992 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-09 16:56:33,002 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2021-07-09 16:56:33,003 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 16:56:33,004 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 16:56:33,004 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-07-09 16:56:33,004 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:6, output treesize:5 [2021-07-09 16:56:33,019 INFO L354 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2021-07-09 16:56:33,019 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 17 treesize of output 21 [2021-07-09 16:56:33,021 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 16:56:33,024 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 16:56:33,025 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-07-09 16:56:33,025 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:17, output treesize:15 [2021-07-09 16:56:33,069 INFO L354 Elim1Store]: treesize reduction 36, result has 34.5 percent of original size [2021-07-09 16:56:33,069 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 22 treesize of output 33 [2021-07-09 16:56:33,071 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 16:56:33,078 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 16:56:33,078 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2021-07-09 16:56:33,079 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:26, output treesize:28 [2021-07-09 16:56:33,327 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2021-07-09 16:56:33,328 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 16:56:33,337 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 16:56:33,339 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2021-07-09 16:56:33,339 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:41, output treesize:37 [2021-07-09 16:56:33,707 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 20 [2021-07-09 16:56:33,708 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 16:56:33,719 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 16:56:33,721 INFO L550 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2021-07-09 16:56:33,721 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:48, output treesize:37 [2021-07-09 16:56:33,972 INFO L354 Elim1Store]: treesize reduction 54, result has 34.1 percent of original size [2021-07-09 16:56:33,972 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 27 treesize of output 45 [2021-07-09 16:56:33,973 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 16:56:33,989 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 16:56:33,990 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2021-07-09 16:56:33,990 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:48, output treesize:54 [2021-07-09 16:56:34,121 INFO L354 Elim1Store]: treesize reduction 72, result has 33.9 percent of original size [2021-07-09 16:56:34,122 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 6 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 8 case distinctions, treesize of input 32 treesize of output 57 [2021-07-09 16:56:34,123 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 16:56:34,153 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 16:56:34,156 INFO L550 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-1 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2021-07-09 16:56:34,156 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:65, output treesize:75 [2021-07-09 16:56:34,241 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 7 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 13 [2021-07-09 16:56:34,242 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 16:56:34,267 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 16:56:34,271 INFO L550 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2021-07-09 16:56:34,271 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 4 variables, input treesize:90, output treesize:75 [2021-07-09 16:56:34,310 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 10 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 41 [2021-07-09 16:56:34,311 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 16:56:34,350 INFO L628 ElimStorePlain]: treesize reduction 16, result has 78.7 percent of original size [2021-07-09 16:56:34,354 INFO L550 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-1 vars, End of recursive call: 3 dim-0 vars, and 1 xjuncts. [2021-07-09 16:56:34,354 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 4 variables, input treesize:81, output treesize:59 [2021-07-09 16:56:34,758 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 5 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 20 [2021-07-09 16:56:34,759 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 16:56:34,779 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 16:56:34,784 INFO L550 ElimStorePlain]: Start of recursive call 1: 6 dim-0 vars, 1 dim-2 vars, End of recursive call: 4 dim-0 vars, and 1 xjuncts. [2021-07-09 16:56:34,784 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 7 variables, input treesize:70, output treesize:59 [2021-07-09 16:56:35,454 WARN L313 ript$VariableManager]: TermVariabe |thread_usbThread1of1ForFork0_ieee80211_deregister_hw_~#status~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:56:35,499 INFO L354 Elim1Store]: treesize reduction 40, result has 45.2 percent of original size [2021-07-09 16:56:35,499 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 6 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 9 case distinctions, treesize of input 31 treesize of output 51 [2021-07-09 16:56:35,502 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 16:56:35,524 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 16:56:35,525 INFO L550 ElimStorePlain]: Start of recursive call 1: 4 dim-0 vars, 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-07-09 16:56:35,525 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 5 variables, input treesize:64, output treesize:14 [2021-07-09 16:56:35,562 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 13 [2021-07-09 16:56:35,563 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 16:56:35,566 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 16:56:35,567 INFO L550 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-07-09 16:56:35,567 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:29, output treesize:9 [2021-07-09 16:56:35,648 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 9 [2021-07-09 16:56:35,649 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 16:56:35,650 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 16:56:35,650 INFO L550 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-07-09 16:56:35,651 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:17, output treesize:5 [2021-07-09 16:56:35,850 INFO L134 CoverageAnalysis]: Checked inductivity of 411 backedges. 15 proven. 390 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2021-07-09 16:56:35,850 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [218454369] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-09 16:56:35,850 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-07-09 16:56:35,850 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [18, 20] total 35 [2021-07-09 16:56:35,850 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1850706481] [2021-07-09 16:56:35,851 INFO L462 AbstractCegarLoop]: Interpolant automaton has 35 states [2021-07-09 16:56:35,851 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 16:56:35,851 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 35 interpolants. [2021-07-09 16:56:35,851 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=151, Invalid=1039, Unknown=0, NotChecked=0, Total=1190 [2021-07-09 16:56:35,852 INFO L87 Difference]: Start difference. First operand 34316 states and 100810 transitions. Second operand has 35 states, 35 states have (on average 17.228571428571428) internal successors, (603), 35 states have internal predecessors, (603), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:56:37,807 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 16:56:37,807 INFO L93 Difference]: Finished difference Result 45941 states and 130696 transitions. [2021-07-09 16:56:37,807 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2021-07-09 16:56:37,807 INFO L78 Accepts]: Start accepts. Automaton has has 35 states, 35 states have (on average 17.228571428571428) internal successors, (603), 35 states have internal predecessors, (603), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 317 [2021-07-09 16:56:37,808 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 16:56:37,894 INFO L225 Difference]: With dead ends: 45941 [2021-07-09 16:56:37,894 INFO L226 Difference]: Without dead ends: 45941 [2021-07-09 16:56:37,902 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 363 GetRequests, 303 SyntacticMatches, 6 SemanticMatches, 54 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 700 ImplicationChecksByTransitivity, 1825.9ms TimeCoverageRelationStatistics Valid=386, Invalid=2694, Unknown=0, NotChecked=0, Total=3080 [2021-07-09 16:56:38,010 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45941 states. [2021-07-09 16:56:38,534 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45941 to 39074. [2021-07-09 16:56:38,583 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 39074 states, 39072 states have (on average 2.9621723996724) internal successors, (115738), 39073 states have internal predecessors, (115738), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:56:38,670 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39074 states to 39074 states and 115738 transitions. [2021-07-09 16:56:38,670 INFO L78 Accepts]: Start accepts. Automaton has 39074 states and 115738 transitions. Word has length 317 [2021-07-09 16:56:38,671 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 16:56:38,671 INFO L482 AbstractCegarLoop]: Abstraction has 39074 states and 115738 transitions. [2021-07-09 16:56:38,671 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 35 states, 35 states have (on average 17.228571428571428) internal successors, (603), 35 states have internal predecessors, (603), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:56:38,671 INFO L276 IsEmpty]: Start isEmpty. Operand 39074 states and 115738 transitions. [2021-07-09 16:56:38,845 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 318 [2021-07-09 16:56:38,846 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 16:56:38,846 INFO L508 BasicCegarLoop]: trace histogram [7, 7, 7, 6, 6, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-09 16:56:39,060 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable42,25 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-09 16:56:39,061 INFO L430 AbstractCegarLoop]: === Iteration 34 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-09 16:56:39,061 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 16:56:39,061 INFO L82 PathProgramCache]: Analyzing trace with hash -1428678368, now seen corresponding path program 25 times [2021-07-09 16:56:39,062 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 16:56:39,062 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1068059647] [2021-07-09 16:56:39,062 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 16:56:39,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 16:56:39,795 INFO L134 CoverageAnalysis]: Checked inductivity of 411 backedges. 9 proven. 396 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2021-07-09 16:56:39,795 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 16:56:39,795 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1068059647] [2021-07-09 16:56:39,796 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1068059647] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-09 16:56:39,796 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [661207177] [2021-07-09 16:56:39,796 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 26 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 26 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-09 16:56:39,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 16:56:39,956 INFO L263 TraceCheckSpWp]: Trace formula consists of 601 conjuncts, 49 conjunts are in the unsatisfiable core [2021-07-09 16:56:39,959 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-09 16:56:39,988 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2021-07-09 16:56:39,989 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 16:56:39,990 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 16:56:39,990 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-07-09 16:56:39,990 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:6, output treesize:5 [2021-07-09 16:56:40,006 INFO L354 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2021-07-09 16:56:40,006 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 17 treesize of output 21 [2021-07-09 16:56:40,007 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 16:56:40,011 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 16:56:40,011 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-07-09 16:56:40,012 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:17, output treesize:15 [2021-07-09 16:56:40,056 INFO L354 Elim1Store]: treesize reduction 36, result has 34.5 percent of original size [2021-07-09 16:56:40,056 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 22 treesize of output 33 [2021-07-09 16:56:40,058 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 16:56:40,065 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 16:56:40,066 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2021-07-09 16:56:40,066 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:26, output treesize:28 [2021-07-09 16:56:40,309 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2021-07-09 16:56:40,310 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 16:56:40,320 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 16:56:40,321 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2021-07-09 16:56:40,321 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:41, output treesize:37 [2021-07-09 16:56:40,605 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 20 [2021-07-09 16:56:40,606 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 16:56:40,618 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 16:56:40,619 INFO L550 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2021-07-09 16:56:40,619 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:48, output treesize:37 [2021-07-09 16:56:41,042 INFO L354 Elim1Store]: treesize reduction 54, result has 34.1 percent of original size [2021-07-09 16:56:41,042 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 27 treesize of output 45 [2021-07-09 16:56:41,043 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 16:56:41,060 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 16:56:41,062 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2021-07-09 16:56:41,062 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:48, output treesize:54 [2021-07-09 16:56:41,203 INFO L354 Elim1Store]: treesize reduction 72, result has 33.9 percent of original size [2021-07-09 16:56:41,203 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 6 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 8 case distinctions, treesize of input 32 treesize of output 57 [2021-07-09 16:56:41,205 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 16:56:41,234 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 16:56:41,238 INFO L550 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-1 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2021-07-09 16:56:41,238 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:65, output treesize:75 [2021-07-09 16:56:41,332 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 7 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 13 [2021-07-09 16:56:41,333 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 16:56:41,358 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 16:56:41,362 INFO L550 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2021-07-09 16:56:41,362 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 4 variables, input treesize:90, output treesize:75 [2021-07-09 16:56:41,400 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 10 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 41 [2021-07-09 16:56:41,402 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 16:56:41,441 INFO L628 ElimStorePlain]: treesize reduction 16, result has 78.7 percent of original size [2021-07-09 16:56:41,444 INFO L550 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-1 vars, End of recursive call: 3 dim-0 vars, and 1 xjuncts. [2021-07-09 16:56:41,444 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 4 variables, input treesize:81, output treesize:59 [2021-07-09 16:56:41,867 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 5 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 20 [2021-07-09 16:56:41,868 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 16:56:41,888 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 16:56:41,892 INFO L550 ElimStorePlain]: Start of recursive call 1: 4 dim-0 vars, 1 dim-2 vars, End of recursive call: 3 dim-0 vars, and 1 xjuncts. [2021-07-09 16:56:41,892 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 5 variables, input treesize:70, output treesize:59 [2021-07-09 16:56:42,333 WARN L313 ript$VariableManager]: TermVariabe |thread_usbThread1of1ForFork0_ieee80211_deregister_hw_~#status~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:56:42,406 INFO L354 Elim1Store]: treesize reduction 122, result has 27.4 percent of original size [2021-07-09 16:56:42,406 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 6 select indices, 6 select index equivalence classes, 6 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 14 case distinctions, treesize of input 37 treesize of output 69 [2021-07-09 16:56:42,408 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 16:56:42,437 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 16:56:42,441 INFO L550 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-1 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2021-07-09 16:56:42,441 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 4 variables, input treesize:70, output treesize:75 [2021-07-09 16:56:42,557 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 7 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 13 [2021-07-09 16:56:42,558 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 16:56:42,585 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 16:56:42,588 INFO L550 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2021-07-09 16:56:42,589 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 4 variables, input treesize:90, output treesize:75 [2021-07-09 16:56:42,629 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 10 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 41 [2021-07-09 16:56:42,630 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 16:56:42,670 INFO L628 ElimStorePlain]: treesize reduction 16, result has 78.7 percent of original size [2021-07-09 16:56:42,673 INFO L550 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-1 vars, End of recursive call: 3 dim-0 vars, and 1 xjuncts. [2021-07-09 16:56:42,673 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 4 variables, input treesize:81, output treesize:59 [2021-07-09 16:56:43,021 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 5 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 20 [2021-07-09 16:56:43,022 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 16:56:43,042 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 16:56:43,048 INFO L550 ElimStorePlain]: Start of recursive call 1: 6 dim-0 vars, 1 dim-2 vars, End of recursive call: 4 dim-0 vars, and 1 xjuncts. [2021-07-09 16:56:43,048 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 7 variables, input treesize:70, output treesize:59 [2021-07-09 16:56:43,658 WARN L313 ript$VariableManager]: TermVariabe |thread_usbThread1of1ForFork0_ieee80211_deregister_hw_~#status~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:56:43,703 INFO L354 Elim1Store]: treesize reduction 40, result has 45.2 percent of original size [2021-07-09 16:56:43,703 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 6 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 9 case distinctions, treesize of input 31 treesize of output 51 [2021-07-09 16:56:43,706 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 16:56:43,728 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 16:56:43,729 INFO L550 ElimStorePlain]: Start of recursive call 1: 4 dim-0 vars, 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-07-09 16:56:43,729 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 5 variables, input treesize:64, output treesize:14 [2021-07-09 16:56:43,771 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 13 [2021-07-09 16:56:43,772 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 16:56:43,775 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 16:56:43,776 INFO L550 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-07-09 16:56:43,776 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:29, output treesize:9 [2021-07-09 16:56:43,809 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 9 [2021-07-09 16:56:43,810 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 16:56:43,811 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 16:56:43,811 INFO L550 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-07-09 16:56:43,811 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:17, output treesize:5 [2021-07-09 16:56:43,980 INFO L134 CoverageAnalysis]: Checked inductivity of 411 backedges. 14 proven. 391 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2021-07-09 16:56:43,981 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [661207177] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-09 16:56:43,981 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-07-09 16:56:43,981 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [20, 23] total 40 [2021-07-09 16:56:43,982 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [651865373] [2021-07-09 16:56:43,982 INFO L462 AbstractCegarLoop]: Interpolant automaton has 40 states [2021-07-09 16:56:43,982 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 16:56:43,983 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 40 interpolants. [2021-07-09 16:56:43,990 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=177, Invalid=1383, Unknown=0, NotChecked=0, Total=1560 [2021-07-09 16:56:43,990 INFO L87 Difference]: Start difference. First operand 39074 states and 115738 transitions. Second operand has 40 states, 40 states have (on average 15.075) internal successors, (603), 40 states have internal predecessors, (603), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:56:44,926 WARN L205 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 37 DAG size of output: 37 [2021-07-09 16:56:45,345 WARN L205 SmtUtils]: Spent 123.00 ms on a formula simplification. DAG size of input: 44 DAG size of output: 40 [2021-07-09 16:56:49,512 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 16:56:49,512 INFO L93 Difference]: Finished difference Result 53352 states and 149440 transitions. [2021-07-09 16:56:49,512 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 45 states. [2021-07-09 16:56:49,512 INFO L78 Accepts]: Start accepts. Automaton has has 40 states, 40 states have (on average 15.075) internal successors, (603), 40 states have internal predecessors, (603), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 317 [2021-07-09 16:56:49,513 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 16:56:49,623 INFO L225 Difference]: With dead ends: 53352 [2021-07-09 16:56:49,623 INFO L226 Difference]: Without dead ends: 53352 [2021-07-09 16:56:49,624 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 385 GetRequests, 302 SyntacticMatches, 6 SemanticMatches, 77 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1567 ImplicationChecksByTransitivity, 3490.0ms TimeCoverageRelationStatistics Valid=696, Invalid=5466, Unknown=0, NotChecked=0, Total=6162 [2021-07-09 16:56:49,744 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 53352 states. [2021-07-09 16:56:50,399 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 53352 to 40775. [2021-07-09 16:56:50,451 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 40775 states, 40773 states have (on average 2.9650258749662766) internal successors, (120893), 40774 states have internal predecessors, (120893), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:56:50,541 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40775 states to 40775 states and 120893 transitions. [2021-07-09 16:56:50,542 INFO L78 Accepts]: Start accepts. Automaton has 40775 states and 120893 transitions. Word has length 317 [2021-07-09 16:56:50,542 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 16:56:50,542 INFO L482 AbstractCegarLoop]: Abstraction has 40775 states and 120893 transitions. [2021-07-09 16:56:50,542 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 40 states, 40 states have (on average 15.075) internal successors, (603), 40 states have internal predecessors, (603), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:56:50,542 INFO L276 IsEmpty]: Start isEmpty. Operand 40775 states and 120893 transitions. [2021-07-09 16:56:50,602 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 318 [2021-07-09 16:56:50,602 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 16:56:50,603 INFO L508 BasicCegarLoop]: trace histogram [7, 7, 7, 6, 6, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-09 16:56:50,819 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 26 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable43 [2021-07-09 16:56:50,820 INFO L430 AbstractCegarLoop]: === Iteration 35 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-09 16:56:50,821 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 16:56:50,821 INFO L82 PathProgramCache]: Analyzing trace with hash 70327198, now seen corresponding path program 26 times [2021-07-09 16:56:50,821 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 16:56:50,821 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [601061224] [2021-07-09 16:56:50,821 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 16:56:50,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 16:56:52,021 INFO L134 CoverageAnalysis]: Checked inductivity of 411 backedges. 15 proven. 396 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-09 16:56:52,022 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 16:56:52,022 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [601061224] [2021-07-09 16:56:52,022 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [601061224] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-09 16:56:52,022 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1826512457] [2021-07-09 16:56:52,022 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 27 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 27 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-09 16:56:52,194 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-07-09 16:56:52,194 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-07-09 16:56:52,196 INFO L263 TraceCheckSpWp]: Trace formula consists of 601 conjuncts, 49 conjunts are in the unsatisfiable core [2021-07-09 16:56:52,199 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-09 16:56:52,210 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2021-07-09 16:56:52,210 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 16:56:52,211 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 16:56:52,212 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-07-09 16:56:52,212 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:6, output treesize:5 [2021-07-09 16:56:52,227 INFO L354 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2021-07-09 16:56:52,227 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 17 treesize of output 21 [2021-07-09 16:56:52,228 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 16:56:52,232 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 16:56:52,232 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-07-09 16:56:52,232 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:17, output treesize:15 [2021-07-09 16:56:52,280 INFO L354 Elim1Store]: treesize reduction 36, result has 34.5 percent of original size [2021-07-09 16:56:52,280 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 22 treesize of output 33 [2021-07-09 16:56:52,281 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 16:56:52,288 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 16:56:52,289 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2021-07-09 16:56:52,290 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:26, output treesize:28 [2021-07-09 16:56:52,534 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2021-07-09 16:56:52,535 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 16:56:52,545 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 16:56:52,546 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2021-07-09 16:56:52,546 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:41, output treesize:37 [2021-07-09 16:56:52,748 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 20 [2021-07-09 16:56:52,749 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 16:56:52,761 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 16:56:52,763 INFO L550 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2021-07-09 16:56:52,763 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:48, output treesize:37 [2021-07-09 16:56:53,193 INFO L354 Elim1Store]: treesize reduction 54, result has 34.1 percent of original size [2021-07-09 16:56:53,193 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 27 treesize of output 45 [2021-07-09 16:56:53,194 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 16:56:53,211 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 16:56:53,213 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2021-07-09 16:56:53,213 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:48, output treesize:54 [2021-07-09 16:56:53,471 WARN L205 SmtUtils]: Spent 163.00 ms on a formula simplification. DAG size of input: 49 DAG size of output: 27 [2021-07-09 16:56:53,472 INFO L354 Elim1Store]: treesize reduction 72, result has 33.9 percent of original size [2021-07-09 16:56:53,472 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 6 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 8 case distinctions, treesize of input 32 treesize of output 57 [2021-07-09 16:56:53,474 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 16:56:53,503 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 16:56:53,506 INFO L550 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-1 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2021-07-09 16:56:53,506 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:65, output treesize:75 [2021-07-09 16:56:53,607 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 7 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 13 [2021-07-09 16:56:53,607 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 16:56:53,633 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 16:56:53,637 INFO L550 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2021-07-09 16:56:53,637 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 4 variables, input treesize:90, output treesize:75 [2021-07-09 16:56:53,675 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 10 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 41 [2021-07-09 16:56:53,677 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 16:56:53,716 INFO L628 ElimStorePlain]: treesize reduction 16, result has 78.7 percent of original size [2021-07-09 16:56:53,719 INFO L550 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-1 vars, End of recursive call: 3 dim-0 vars, and 1 xjuncts. [2021-07-09 16:56:53,719 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 4 variables, input treesize:81, output treesize:59 [2021-07-09 16:56:54,144 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 5 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 20 [2021-07-09 16:56:54,145 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 16:56:54,162 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 16:56:54,166 INFO L550 ElimStorePlain]: Start of recursive call 1: 4 dim-0 vars, 1 dim-2 vars, End of recursive call: 3 dim-0 vars, and 1 xjuncts. [2021-07-09 16:56:54,166 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 5 variables, input treesize:70, output treesize:59 [2021-07-09 16:56:54,600 WARN L313 ript$VariableManager]: TermVariabe |thread_usbThread1of1ForFork0_ieee80211_deregister_hw_~#status~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:56:54,671 INFO L354 Elim1Store]: treesize reduction 122, result has 27.4 percent of original size [2021-07-09 16:56:54,671 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 6 select indices, 6 select index equivalence classes, 6 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 14 case distinctions, treesize of input 37 treesize of output 69 [2021-07-09 16:56:54,673 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 16:56:54,701 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 16:56:54,705 INFO L550 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-1 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2021-07-09 16:56:54,705 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 4 variables, input treesize:70, output treesize:75 [2021-07-09 16:56:54,818 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 7 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 13 [2021-07-09 16:56:54,819 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 16:56:54,845 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 16:56:54,848 INFO L550 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2021-07-09 16:56:54,849 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 4 variables, input treesize:90, output treesize:75 [2021-07-09 16:56:54,885 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 10 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 41 [2021-07-09 16:56:54,887 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 16:56:54,926 INFO L628 ElimStorePlain]: treesize reduction 16, result has 78.7 percent of original size [2021-07-09 16:56:54,930 INFO L550 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-1 vars, End of recursive call: 3 dim-0 vars, and 1 xjuncts. [2021-07-09 16:56:54,930 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 4 variables, input treesize:81, output treesize:59 [2021-07-09 16:56:55,269 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 5 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 20 [2021-07-09 16:56:55,270 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 16:56:55,291 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 16:56:55,296 INFO L550 ElimStorePlain]: Start of recursive call 1: 6 dim-0 vars, 1 dim-2 vars, End of recursive call: 4 dim-0 vars, and 1 xjuncts. [2021-07-09 16:56:55,296 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 7 variables, input treesize:70, output treesize:59 [2021-07-09 16:56:55,918 WARN L313 ript$VariableManager]: TermVariabe |thread_usbThread1of1ForFork0_ieee80211_deregister_hw_~#status~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:56:55,965 INFO L354 Elim1Store]: treesize reduction 40, result has 45.2 percent of original size [2021-07-09 16:56:55,965 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 6 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 9 case distinctions, treesize of input 31 treesize of output 51 [2021-07-09 16:56:55,968 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 16:56:55,990 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 16:56:55,991 INFO L550 ElimStorePlain]: Start of recursive call 1: 4 dim-0 vars, 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-07-09 16:56:55,992 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 5 variables, input treesize:64, output treesize:14 [2021-07-09 16:56:56,033 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 13 [2021-07-09 16:56:56,034 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 16:56:56,037 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 16:56:56,038 INFO L550 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-07-09 16:56:56,038 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:29, output treesize:9 [2021-07-09 16:56:56,130 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 9 [2021-07-09 16:56:56,131 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 16:56:56,132 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 16:56:56,133 INFO L550 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-07-09 16:56:56,133 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:17, output treesize:5 [2021-07-09 16:56:56,237 INFO L134 CoverageAnalysis]: Checked inductivity of 411 backedges. 14 proven. 391 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2021-07-09 16:56:56,237 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1826512457] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-09 16:56:56,237 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-07-09 16:56:56,238 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [21, 23] total 41 [2021-07-09 16:56:56,238 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1772374888] [2021-07-09 16:56:56,238 INFO L462 AbstractCegarLoop]: Interpolant automaton has 41 states [2021-07-09 16:56:56,238 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 16:56:56,238 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 41 interpolants. [2021-07-09 16:56:56,238 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=195, Invalid=1445, Unknown=0, NotChecked=0, Total=1640 [2021-07-09 16:56:56,239 INFO L87 Difference]: Start difference. First operand 40775 states and 120893 transitions. Second operand has 41 states, 41 states have (on average 14.829268292682928) internal successors, (608), 41 states have internal predecessors, (608), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:56:57,133 WARN L205 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 37 DAG size of output: 37 [2021-07-09 16:56:57,546 WARN L205 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 42 DAG size of output: 40 [2021-07-09 16:57:01,633 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 16:57:01,633 INFO L93 Difference]: Finished difference Result 59645 states and 170522 transitions. [2021-07-09 16:57:01,634 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 48 states. [2021-07-09 16:57:01,634 INFO L78 Accepts]: Start accepts. Automaton has has 41 states, 41 states have (on average 14.829268292682928) internal successors, (608), 41 states have internal predecessors, (608), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 317 [2021-07-09 16:57:01,634 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 16:57:01,754 INFO L225 Difference]: With dead ends: 59645 [2021-07-09 16:57:01,755 INFO L226 Difference]: Without dead ends: 59645 [2021-07-09 16:57:01,755 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 389 GetRequests, 302 SyntacticMatches, 6 SemanticMatches, 81 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1820 ImplicationChecksByTransitivity, 3886.1ms TimeCoverageRelationStatistics Valid=749, Invalid=6057, Unknown=0, NotChecked=0, Total=6806 [2021-07-09 16:57:01,886 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 59645 states. [2021-07-09 16:57:02,588 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 59645 to 41125. [2021-07-09 16:57:02,638 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 41125 states, 41123 states have (on average 2.9577851810422393) internal successors, (121633), 41124 states have internal predecessors, (121633), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:57:02,726 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41125 states to 41125 states and 121633 transitions. [2021-07-09 16:57:02,726 INFO L78 Accepts]: Start accepts. Automaton has 41125 states and 121633 transitions. Word has length 317 [2021-07-09 16:57:02,726 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 16:57:02,726 INFO L482 AbstractCegarLoop]: Abstraction has 41125 states and 121633 transitions. [2021-07-09 16:57:02,726 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 41 states, 41 states have (on average 14.829268292682928) internal successors, (608), 41 states have internal predecessors, (608), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:57:02,726 INFO L276 IsEmpty]: Start isEmpty. Operand 41125 states and 121633 transitions. [2021-07-09 16:57:02,785 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 318 [2021-07-09 16:57:02,785 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 16:57:02,785 INFO L508 BasicCegarLoop]: trace histogram [7, 7, 7, 6, 6, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-09 16:57:03,002 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 27 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable45 [2021-07-09 16:57:03,003 INFO L430 AbstractCegarLoop]: === Iteration 36 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-09 16:57:03,003 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 16:57:03,003 INFO L82 PathProgramCache]: Analyzing trace with hash 731391478, now seen corresponding path program 27 times [2021-07-09 16:57:03,003 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 16:57:03,003 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1477739802] [2021-07-09 16:57:03,003 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 16:57:03,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 16:57:03,819 INFO L134 CoverageAnalysis]: Checked inductivity of 411 backedges. 15 proven. 396 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-09 16:57:03,819 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 16:57:03,820 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1477739802] [2021-07-09 16:57:03,820 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1477739802] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-09 16:57:03,820 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1528602954] [2021-07-09 16:57:03,820 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 28 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 28 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-09 16:57:04,076 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 7 check-sat command(s) [2021-07-09 16:57:04,076 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-07-09 16:57:04,078 INFO L263 TraceCheckSpWp]: Trace formula consists of 601 conjuncts, 50 conjunts are in the unsatisfiable core [2021-07-09 16:57:04,081 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-09 16:57:04,094 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2021-07-09 16:57:04,095 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 16:57:04,096 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 16:57:04,097 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-07-09 16:57:04,097 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:6, output treesize:5 [2021-07-09 16:57:04,113 INFO L354 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2021-07-09 16:57:04,113 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 17 treesize of output 21 [2021-07-09 16:57:04,114 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 16:57:04,118 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 16:57:04,119 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-07-09 16:57:04,119 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:17, output treesize:15 [2021-07-09 16:57:04,171 INFO L354 Elim1Store]: treesize reduction 36, result has 34.5 percent of original size [2021-07-09 16:57:04,171 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 22 treesize of output 33 [2021-07-09 16:57:04,173 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 16:57:04,181 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 16:57:04,182 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2021-07-09 16:57:04,182 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:26, output treesize:28 [2021-07-09 16:57:04,433 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2021-07-09 16:57:04,434 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 16:57:04,444 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 16:57:04,445 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2021-07-09 16:57:04,446 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:41, output treesize:37 [2021-07-09 16:57:04,653 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 20 [2021-07-09 16:57:04,654 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 16:57:04,665 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 16:57:04,667 INFO L550 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2021-07-09 16:57:04,667 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:48, output treesize:37 [2021-07-09 16:57:04,999 INFO L354 Elim1Store]: treesize reduction 54, result has 34.1 percent of original size [2021-07-09 16:57:04,999 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 27 treesize of output 45 [2021-07-09 16:57:05,000 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 16:57:05,015 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 16:57:05,016 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2021-07-09 16:57:05,016 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:48, output treesize:54 [2021-07-09 16:57:05,140 INFO L354 Elim1Store]: treesize reduction 72, result has 33.9 percent of original size [2021-07-09 16:57:05,140 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 6 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 8 case distinctions, treesize of input 32 treesize of output 57 [2021-07-09 16:57:05,141 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 16:57:05,164 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 16:57:05,167 INFO L550 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-1 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2021-07-09 16:57:05,167 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:65, output treesize:75 [2021-07-09 16:57:05,253 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 7 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 13 [2021-07-09 16:57:05,254 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 16:57:05,277 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 16:57:05,280 INFO L550 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2021-07-09 16:57:05,280 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 4 variables, input treesize:90, output treesize:75 [2021-07-09 16:57:05,314 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 10 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 41 [2021-07-09 16:57:05,315 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 16:57:05,352 INFO L628 ElimStorePlain]: treesize reduction 16, result has 78.7 percent of original size [2021-07-09 16:57:05,355 INFO L550 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-1 vars, End of recursive call: 3 dim-0 vars, and 1 xjuncts. [2021-07-09 16:57:05,355 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 4 variables, input treesize:81, output treesize:59 [2021-07-09 16:57:05,743 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 5 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 20 [2021-07-09 16:57:05,744 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 16:57:05,765 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 16:57:05,773 INFO L550 ElimStorePlain]: Start of recursive call 1: 4 dim-0 vars, 1 dim-2 vars, End of recursive call: 3 dim-0 vars, and 1 xjuncts. [2021-07-09 16:57:05,773 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 5 variables, input treesize:70, output treesize:59 [2021-07-09 16:57:06,199 WARN L313 ript$VariableManager]: TermVariabe |thread_usbThread1of1ForFork0_ieee80211_deregister_hw_~#status~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:57:06,269 INFO L354 Elim1Store]: treesize reduction 122, result has 27.4 percent of original size [2021-07-09 16:57:06,269 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 6 select indices, 6 select index equivalence classes, 6 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 14 case distinctions, treesize of input 37 treesize of output 69 [2021-07-09 16:57:06,271 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 16:57:06,300 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 16:57:06,304 INFO L550 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-1 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2021-07-09 16:57:06,304 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 4 variables, input treesize:70, output treesize:75 [2021-07-09 16:57:06,416 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 7 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 13 [2021-07-09 16:57:06,417 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 16:57:06,443 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 16:57:06,447 INFO L550 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2021-07-09 16:57:06,447 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 4 variables, input treesize:90, output treesize:75 [2021-07-09 16:57:06,484 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 10 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 41 [2021-07-09 16:57:06,486 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 16:57:06,526 INFO L628 ElimStorePlain]: treesize reduction 16, result has 78.7 percent of original size [2021-07-09 16:57:06,530 INFO L550 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-1 vars, End of recursive call: 3 dim-0 vars, and 1 xjuncts. [2021-07-09 16:57:06,530 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 4 variables, input treesize:81, output treesize:59 [2021-07-09 16:57:06,877 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 5 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 20 [2021-07-09 16:57:06,878 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 16:57:06,898 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 16:57:06,902 INFO L550 ElimStorePlain]: Start of recursive call 1: 4 dim-0 vars, 1 dim-2 vars, End of recursive call: 3 dim-0 vars, and 1 xjuncts. [2021-07-09 16:57:06,902 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 5 variables, input treesize:70, output treesize:59 [2021-07-09 16:57:07,591 WARN L313 ript$VariableManager]: TermVariabe |thread_usbThread1of1ForFork0_ieee80211_deregister_hw_~#status~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:57:07,636 INFO L354 Elim1Store]: treesize reduction 40, result has 45.2 percent of original size [2021-07-09 16:57:07,637 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 6 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 9 case distinctions, treesize of input 31 treesize of output 51 [2021-07-09 16:57:07,640 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 16:57:07,662 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 16:57:07,664 INFO L550 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-07-09 16:57:07,664 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 4 variables, input treesize:64, output treesize:22 [2021-07-09 16:57:07,709 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 13 [2021-07-09 16:57:07,710 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 16:57:07,716 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 16:57:07,717 INFO L550 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-07-09 16:57:07,717 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:37, output treesize:14 [2021-07-09 16:57:07,786 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 16:57:07,788 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 25 [2021-07-09 16:57:07,789 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 16:57:07,794 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 16:57:07,796 INFO L550 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2021-07-09 16:57:07,796 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:50, output treesize:30 [2021-07-09 16:57:07,940 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 17 [2021-07-09 16:57:07,941 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 16:57:07,945 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 16:57:07,946 INFO L550 ElimStorePlain]: Start of recursive call 1: 4 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-07-09 16:57:07,946 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 5 variables, input treesize:45, output treesize:11 [2021-07-09 16:57:08,019 INFO L134 CoverageAnalysis]: Checked inductivity of 411 backedges. 15 proven. 390 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2021-07-09 16:57:08,019 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1528602954] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-09 16:57:08,019 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-07-09 16:57:08,019 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [22, 23] total 40 [2021-07-09 16:57:08,020 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1808534745] [2021-07-09 16:57:08,020 INFO L462 AbstractCegarLoop]: Interpolant automaton has 40 states [2021-07-09 16:57:08,020 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 16:57:08,021 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 40 interpolants. [2021-07-09 16:57:08,027 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=183, Invalid=1377, Unknown=0, NotChecked=0, Total=1560 [2021-07-09 16:57:08,028 INFO L87 Difference]: Start difference. First operand 41125 states and 121633 transitions. Second operand has 40 states, 40 states have (on average 14.6) internal successors, (584), 40 states have internal predecessors, (584), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:57:11,023 WARN L205 SmtUtils]: Spent 134.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 50 [2021-07-09 16:57:13,240 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 16:57:13,240 INFO L93 Difference]: Finished difference Result 53646 states and 150737 transitions. [2021-07-09 16:57:13,240 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 53 states. [2021-07-09 16:57:13,240 INFO L78 Accepts]: Start accepts. Automaton has has 40 states, 40 states have (on average 14.6) internal successors, (584), 40 states have internal predecessors, (584), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 317 [2021-07-09 16:57:13,241 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 16:57:13,360 INFO L225 Difference]: With dead ends: 53646 [2021-07-09 16:57:13,360 INFO L226 Difference]: Without dead ends: 53646 [2021-07-09 16:57:13,361 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 395 GetRequests, 302 SyntacticMatches, 8 SemanticMatches, 85 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2218 ImplicationChecksByTransitivity, 3646.8ms TimeCoverageRelationStatistics Valid=784, Invalid=6698, Unknown=0, NotChecked=0, Total=7482 [2021-07-09 16:57:13,478 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 53646 states. [2021-07-09 16:57:14,063 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 53646 to 39424. [2021-07-09 16:57:14,112 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 39424 states, 39422 states have (on average 2.9546446146821572) internal successors, (116478), 39423 states have internal predecessors, (116478), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:57:14,195 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39424 states to 39424 states and 116478 transitions. [2021-07-09 16:57:14,195 INFO L78 Accepts]: Start accepts. Automaton has 39424 states and 116478 transitions. Word has length 317 [2021-07-09 16:57:14,196 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 16:57:14,196 INFO L482 AbstractCegarLoop]: Abstraction has 39424 states and 116478 transitions. [2021-07-09 16:57:14,196 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 40 states, 40 states have (on average 14.6) internal successors, (584), 40 states have internal predecessors, (584), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:57:14,196 INFO L276 IsEmpty]: Start isEmpty. Operand 39424 states and 116478 transitions. [2021-07-09 16:57:14,252 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 318 [2021-07-09 16:57:14,252 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 16:57:14,253 INFO L508 BasicCegarLoop]: trace histogram [7, 7, 7, 6, 6, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-09 16:57:14,470 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 28 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable47 [2021-07-09 16:57:14,473 INFO L430 AbstractCegarLoop]: === Iteration 37 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-09 16:57:14,473 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 16:57:14,473 INFO L82 PathProgramCache]: Analyzing trace with hash -692418648, now seen corresponding path program 28 times [2021-07-09 16:57:14,473 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 16:57:14,473 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1145089708] [2021-07-09 16:57:14,473 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 16:57:14,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 16:57:15,550 INFO L134 CoverageAnalysis]: Checked inductivity of 411 backedges. 9 proven. 390 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2021-07-09 16:57:15,550 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 16:57:15,550 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1145089708] [2021-07-09 16:57:15,551 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1145089708] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-09 16:57:15,551 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1489177410] [2021-07-09 16:57:15,551 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 29 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 29 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-09 16:57:15,748 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-07-09 16:57:15,749 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-07-09 16:57:15,751 INFO L263 TraceCheckSpWp]: Trace formula consists of 601 conjuncts, 45 conjunts are in the unsatisfiable core [2021-07-09 16:57:15,753 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-09 16:57:15,780 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2021-07-09 16:57:15,781 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 16:57:15,782 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 16:57:15,782 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-07-09 16:57:15,782 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:6, output treesize:5 [2021-07-09 16:57:15,815 INFO L354 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2021-07-09 16:57:15,815 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 17 treesize of output 21 [2021-07-09 16:57:15,817 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 16:57:15,821 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 16:57:15,821 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-07-09 16:57:15,821 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:17, output treesize:15 [2021-07-09 16:57:15,887 INFO L354 Elim1Store]: treesize reduction 36, result has 34.5 percent of original size [2021-07-09 16:57:15,887 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 22 treesize of output 33 [2021-07-09 16:57:15,889 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 16:57:15,910 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 16:57:15,911 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2021-07-09 16:57:15,911 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:26, output treesize:28 [2021-07-09 16:57:16,249 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2021-07-09 16:57:16,250 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 16:57:16,260 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 16:57:16,261 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2021-07-09 16:57:16,261 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:41, output treesize:37 [2021-07-09 16:57:16,462 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 20 [2021-07-09 16:57:16,463 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 16:57:16,475 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 16:57:16,477 INFO L550 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2021-07-09 16:57:16,477 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:48, output treesize:37 [2021-07-09 16:57:16,686 WARN L205 SmtUtils]: Spent 181.00 ms on a formula simplification that was a NOOP. DAG size: 28 [2021-07-09 16:57:16,904 INFO L354 Elim1Store]: treesize reduction 54, result has 34.1 percent of original size [2021-07-09 16:57:16,905 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 27 treesize of output 45 [2021-07-09 16:57:16,906 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 16:57:16,921 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 16:57:16,922 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2021-07-09 16:57:16,922 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:48, output treesize:54 [2021-07-09 16:57:17,008 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 5 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 13 [2021-07-09 16:57:17,009 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 16:57:17,025 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 16:57:17,027 INFO L550 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2021-07-09 16:57:17,027 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:69, output treesize:54 [2021-07-09 16:57:17,049 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 33 [2021-07-09 16:57:17,050 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 16:57:17,075 INFO L628 ElimStorePlain]: treesize reduction 12, result has 77.8 percent of original size [2021-07-09 16:57:17,077 INFO L550 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-1 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2021-07-09 16:57:17,077 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:60, output treesize:42 [2021-07-09 16:57:17,362 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 20 [2021-07-09 16:57:17,363 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 16:57:17,376 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 16:57:17,377 INFO L550 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2021-07-09 16:57:17,378 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 4 variables, input treesize:53, output treesize:42 [2021-07-09 16:57:17,442 INFO L354 Elim1Store]: treesize reduction 96, result has 27.8 percent of original size [2021-07-09 16:57:17,442 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 3 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 11 case distinctions, treesize of input 32 treesize of output 57 [2021-07-09 16:57:17,444 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 16:57:17,466 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 16:57:17,473 INFO L550 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-1 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2021-07-09 16:57:17,473 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 4 variables, input treesize:53, output treesize:54 [2021-07-09 16:57:17,965 INFO L354 Elim1Store]: treesize reduction 72, result has 33.9 percent of original size [2021-07-09 16:57:17,965 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 6 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 8 case distinctions, treesize of input 32 treesize of output 57 [2021-07-09 16:57:17,966 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 16:57:17,990 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 16:57:17,994 INFO L550 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-1 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2021-07-09 16:57:17,994 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:65, output treesize:75 [2021-07-09 16:57:18,106 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 7 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 13 [2021-07-09 16:57:18,107 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 16:57:18,133 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 16:57:18,137 INFO L550 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2021-07-09 16:57:18,137 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 4 variables, input treesize:90, output treesize:75 [2021-07-09 16:57:18,173 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 10 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 41 [2021-07-09 16:57:18,175 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 16:57:18,214 INFO L628 ElimStorePlain]: treesize reduction 16, result has 78.7 percent of original size [2021-07-09 16:57:18,217 INFO L550 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-1 vars, End of recursive call: 3 dim-0 vars, and 1 xjuncts. [2021-07-09 16:57:18,218 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 4 variables, input treesize:81, output treesize:59 [2021-07-09 16:57:18,663 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 5 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 20 [2021-07-09 16:57:18,664 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 16:57:18,684 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 16:57:18,689 INFO L550 ElimStorePlain]: Start of recursive call 1: 6 dim-0 vars, 1 dim-2 vars, End of recursive call: 4 dim-0 vars, and 1 xjuncts. [2021-07-09 16:57:18,689 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 7 variables, input treesize:70, output treesize:59 [2021-07-09 16:57:19,270 WARN L313 ript$VariableManager]: TermVariabe |thread_usbThread1of1ForFork0_ieee80211_deregister_hw_~#status~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:57:19,315 INFO L354 Elim1Store]: treesize reduction 40, result has 45.2 percent of original size [2021-07-09 16:57:19,315 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 6 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 9 case distinctions, treesize of input 31 treesize of output 51 [2021-07-09 16:57:19,318 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 16:57:19,340 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 16:57:19,341 INFO L550 ElimStorePlain]: Start of recursive call 1: 4 dim-0 vars, 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-07-09 16:57:19,341 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 5 variables, input treesize:64, output treesize:14 [2021-07-09 16:57:19,379 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 13 [2021-07-09 16:57:19,380 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 16:57:19,383 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 16:57:19,383 INFO L550 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-07-09 16:57:19,384 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:29, output treesize:9 [2021-07-09 16:57:19,412 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 9 [2021-07-09 16:57:19,413 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 16:57:19,414 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 16:57:19,414 INFO L550 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-07-09 16:57:19,415 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:17, output treesize:5 [2021-07-09 16:57:19,573 INFO L134 CoverageAnalysis]: Checked inductivity of 411 backedges. 21 proven. 390 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-09 16:57:19,574 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1489177410] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-09 16:57:19,574 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-07-09 16:57:19,574 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [19, 22] total 38 [2021-07-09 16:57:19,574 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1636158771] [2021-07-09 16:57:19,575 INFO L462 AbstractCegarLoop]: Interpolant automaton has 38 states [2021-07-09 16:57:19,575 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 16:57:19,575 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 38 interpolants. [2021-07-09 16:57:19,576 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=178, Invalid=1228, Unknown=0, NotChecked=0, Total=1406 [2021-07-09 16:57:19,576 INFO L87 Difference]: Start difference. First operand 39424 states and 116478 transitions. Second operand has 38 states, 38 states have (on average 15.868421052631579) internal successors, (603), 38 states have internal predecessors, (603), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:57:23,015 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 16:57:23,015 INFO L93 Difference]: Finished difference Result 50035 states and 141571 transitions. [2021-07-09 16:57:23,016 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2021-07-09 16:57:23,016 INFO L78 Accepts]: Start accepts. Automaton has has 38 states, 38 states have (on average 15.868421052631579) internal successors, (603), 38 states have internal predecessors, (603), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 317 [2021-07-09 16:57:23,016 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 16:57:23,124 INFO L225 Difference]: With dead ends: 50035 [2021-07-09 16:57:23,124 INFO L226 Difference]: Without dead ends: 50035 [2021-07-09 16:57:23,124 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 375 GetRequests, 304 SyntacticMatches, 6 SemanticMatches, 65 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1132 ImplicationChecksByTransitivity, 2842.9ms TimeCoverageRelationStatistics Valid=540, Invalid=3882, Unknown=0, NotChecked=0, Total=4422 [2021-07-09 16:57:23,242 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 50035 states. [2021-07-09 16:57:23,885 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 50035 to 41049. [2021-07-09 16:57:23,937 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 41049 states, 41047 states have (on average 2.958852047652691) internal successors, (121452), 41048 states have internal predecessors, (121452), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:57:24,034 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41049 states to 41049 states and 121452 transitions. [2021-07-09 16:57:24,035 INFO L78 Accepts]: Start accepts. Automaton has 41049 states and 121452 transitions. Word has length 317 [2021-07-09 16:57:24,035 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 16:57:24,035 INFO L482 AbstractCegarLoop]: Abstraction has 41049 states and 121452 transitions. [2021-07-09 16:57:24,035 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 38 states, 38 states have (on average 15.868421052631579) internal successors, (603), 38 states have internal predecessors, (603), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:57:24,035 INFO L276 IsEmpty]: Start isEmpty. Operand 41049 states and 121452 transitions. [2021-07-09 16:57:24,098 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 318 [2021-07-09 16:57:24,098 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 16:57:24,098 INFO L508 BasicCegarLoop]: trace histogram [7, 7, 7, 6, 6, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-09 16:57:24,312 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 29 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable49 [2021-07-09 16:57:24,313 INFO L430 AbstractCegarLoop]: === Iteration 38 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-09 16:57:24,313 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 16:57:24,313 INFO L82 PathProgramCache]: Analyzing trace with hash 1467651198, now seen corresponding path program 29 times [2021-07-09 16:57:24,314 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 16:57:24,314 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1042269444] [2021-07-09 16:57:24,314 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 16:57:24,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 16:57:25,202 INFO L134 CoverageAnalysis]: Checked inductivity of 411 backedges. 9 proven. 396 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2021-07-09 16:57:25,202 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 16:57:25,202 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1042269444] [2021-07-09 16:57:25,202 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1042269444] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-09 16:57:25,202 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1818734132] [2021-07-09 16:57:25,202 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 30 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 30 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-09 16:57:25,392 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 7 check-sat command(s) [2021-07-09 16:57:25,392 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-07-09 16:57:25,394 INFO L263 TraceCheckSpWp]: Trace formula consists of 601 conjuncts, 50 conjunts are in the unsatisfiable core [2021-07-09 16:57:25,397 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-09 16:57:25,408 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2021-07-09 16:57:25,409 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 16:57:25,410 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 16:57:25,411 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-07-09 16:57:25,411 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:6, output treesize:5 [2021-07-09 16:57:25,427 INFO L354 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2021-07-09 16:57:25,427 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 17 treesize of output 21 [2021-07-09 16:57:25,429 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 16:57:25,433 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 16:57:25,434 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-07-09 16:57:25,434 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:17, output treesize:15 [2021-07-09 16:57:25,487 INFO L354 Elim1Store]: treesize reduction 36, result has 34.5 percent of original size [2021-07-09 16:57:25,488 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 22 treesize of output 33 [2021-07-09 16:57:25,489 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 16:57:25,497 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 16:57:25,499 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2021-07-09 16:57:25,499 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:26, output treesize:28 [2021-07-09 16:57:25,903 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2021-07-09 16:57:25,904 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 16:57:25,915 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 16:57:25,916 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2021-07-09 16:57:25,916 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:41, output treesize:37 [2021-07-09 16:57:26,135 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 20 [2021-07-09 16:57:26,136 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 16:57:26,147 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 16:57:26,149 INFO L550 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2021-07-09 16:57:26,149 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:48, output treesize:37 [2021-07-09 16:57:26,584 INFO L354 Elim1Store]: treesize reduction 54, result has 34.1 percent of original size [2021-07-09 16:57:26,584 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 27 treesize of output 45 [2021-07-09 16:57:26,586 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 16:57:26,604 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 16:57:26,605 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2021-07-09 16:57:26,605 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:48, output treesize:54 [2021-07-09 16:57:26,701 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 5 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 13 [2021-07-09 16:57:26,702 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 16:57:26,719 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 16:57:26,720 INFO L550 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2021-07-09 16:57:26,720 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:69, output treesize:54 [2021-07-09 16:57:26,743 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 33 [2021-07-09 16:57:26,745 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 16:57:26,770 INFO L628 ElimStorePlain]: treesize reduction 12, result has 77.8 percent of original size [2021-07-09 16:57:26,772 INFO L550 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-1 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2021-07-09 16:57:26,772 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:60, output treesize:42 [2021-07-09 16:57:27,079 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 20 [2021-07-09 16:57:27,081 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 16:57:27,094 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 16:57:27,096 INFO L550 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2021-07-09 16:57:27,096 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 4 variables, input treesize:53, output treesize:42 [2021-07-09 16:57:27,165 INFO L354 Elim1Store]: treesize reduction 96, result has 27.8 percent of original size [2021-07-09 16:57:27,165 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 3 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 11 case distinctions, treesize of input 32 treesize of output 57 [2021-07-09 16:57:27,167 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 16:57:27,190 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 16:57:27,196 INFO L550 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-1 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2021-07-09 16:57:27,196 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 4 variables, input treesize:53, output treesize:54 [2021-07-09 16:57:27,678 INFO L354 Elim1Store]: treesize reduction 72, result has 33.9 percent of original size [2021-07-09 16:57:27,678 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 6 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 8 case distinctions, treesize of input 32 treesize of output 57 [2021-07-09 16:57:27,680 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 16:57:27,704 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 16:57:27,708 INFO L550 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-1 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2021-07-09 16:57:27,708 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:65, output treesize:75 [2021-07-09 16:57:27,834 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 7 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 13 [2021-07-09 16:57:27,835 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 16:57:27,861 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 16:57:27,865 INFO L550 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2021-07-09 16:57:27,865 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 4 variables, input treesize:90, output treesize:75 [2021-07-09 16:57:27,903 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 10 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 41 [2021-07-09 16:57:27,904 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 16:57:27,943 INFO L628 ElimStorePlain]: treesize reduction 16, result has 78.7 percent of original size [2021-07-09 16:57:27,947 INFO L550 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-1 vars, End of recursive call: 3 dim-0 vars, and 1 xjuncts. [2021-07-09 16:57:27,947 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 4 variables, input treesize:81, output treesize:59 [2021-07-09 16:57:28,372 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 5 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 20 [2021-07-09 16:57:28,373 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 16:57:28,390 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 16:57:28,394 INFO L550 ElimStorePlain]: Start of recursive call 1: 4 dim-0 vars, 1 dim-2 vars, End of recursive call: 3 dim-0 vars, and 1 xjuncts. [2021-07-09 16:57:28,394 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 5 variables, input treesize:70, output treesize:59 [2021-07-09 16:57:28,795 WARN L313 ript$VariableManager]: TermVariabe |thread_usbThread1of1ForFork0_ieee80211_deregister_hw_~#status~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:57:28,837 INFO L354 Elim1Store]: treesize reduction 40, result has 45.2 percent of original size [2021-07-09 16:57:28,837 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 6 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 9 case distinctions, treesize of input 31 treesize of output 51 [2021-07-09 16:57:28,839 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 16:57:28,860 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 16:57:28,861 INFO L550 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-07-09 16:57:28,861 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 4 variables, input treesize:64, output treesize:22 [2021-07-09 16:57:28,927 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 13 [2021-07-09 16:57:28,928 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 16:57:28,933 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 16:57:28,934 INFO L550 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-07-09 16:57:28,934 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:37, output treesize:14 [2021-07-09 16:57:29,010 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 16:57:29,011 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 25 [2021-07-09 16:57:29,012 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 16:57:29,019 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 16:57:29,021 INFO L550 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2021-07-09 16:57:29,021 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:50, output treesize:30 [2021-07-09 16:57:29,181 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 17 [2021-07-09 16:57:29,182 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 16:57:29,186 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 16:57:29,187 INFO L550 ElimStorePlain]: Start of recursive call 1: 4 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-07-09 16:57:29,187 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 5 variables, input treesize:45, output treesize:11 [2021-07-09 16:57:29,268 INFO L134 CoverageAnalysis]: Checked inductivity of 411 backedges. 20 proven. 391 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-09 16:57:29,269 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1818734132] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-09 16:57:29,269 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-07-09 16:57:29,269 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [21, 24] total 40 [2021-07-09 16:57:29,269 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1624186901] [2021-07-09 16:57:29,269 INFO L462 AbstractCegarLoop]: Interpolant automaton has 40 states [2021-07-09 16:57:29,269 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 16:57:29,270 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 40 interpolants. [2021-07-09 16:57:29,270 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=185, Invalid=1375, Unknown=0, NotChecked=0, Total=1560 [2021-07-09 16:57:29,270 INFO L87 Difference]: Start difference. First operand 41049 states and 121452 transitions. Second operand has 40 states, 40 states have (on average 14.6) internal successors, (584), 40 states have internal predecessors, (584), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:57:30,007 WARN L205 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 37 DAG size of output: 37 [2021-07-09 16:57:41,480 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 16:57:41,481 INFO L93 Difference]: Finished difference Result 47826 states and 136806 transitions. [2021-07-09 16:57:41,481 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 40 states. [2021-07-09 16:57:41,481 INFO L78 Accepts]: Start accepts. Automaton has has 40 states, 40 states have (on average 14.6) internal successors, (584), 40 states have internal predecessors, (584), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 317 [2021-07-09 16:57:41,482 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 16:57:41,580 INFO L225 Difference]: With dead ends: 47826 [2021-07-09 16:57:41,580 INFO L226 Difference]: Without dead ends: 47826 [2021-07-09 16:57:41,581 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 383 GetRequests, 302 SyntacticMatches, 8 SemanticMatches, 73 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1522 ImplicationChecksByTransitivity, 5299.7ms TimeCoverageRelationStatistics Valid=621, Invalid=4928, Unknown=1, NotChecked=0, Total=5550 [2021-07-09 16:57:41,693 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47826 states. [2021-07-09 16:57:42,299 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 47826 to 39424. [2021-07-09 16:57:42,351 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 39424 states, 39422 states have (on average 2.9546446146821572) internal successors, (116478), 39423 states have internal predecessors, (116478), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:57:42,442 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39424 states to 39424 states and 116478 transitions. [2021-07-09 16:57:42,442 INFO L78 Accepts]: Start accepts. Automaton has 39424 states and 116478 transitions. Word has length 317 [2021-07-09 16:57:42,442 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 16:57:42,442 INFO L482 AbstractCegarLoop]: Abstraction has 39424 states and 116478 transitions. [2021-07-09 16:57:42,442 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 40 states, 40 states have (on average 14.6) internal successors, (584), 40 states have internal predecessors, (584), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:57:42,442 INFO L276 IsEmpty]: Start isEmpty. Operand 39424 states and 116478 transitions. [2021-07-09 16:57:42,503 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 318 [2021-07-09 16:57:42,503 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 16:57:42,503 INFO L508 BasicCegarLoop]: trace histogram [7, 7, 7, 6, 6, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-09 16:57:42,720 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable50,30 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-09 16:57:42,721 INFO L430 AbstractCegarLoop]: === Iteration 39 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-09 16:57:42,721 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 16:57:42,721 INFO L82 PathProgramCache]: Analyzing trace with hash -2033220074, now seen corresponding path program 30 times [2021-07-09 16:57:42,721 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 16:57:42,721 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [390101161] [2021-07-09 16:57:42,721 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 16:57:42,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 16:57:43,626 INFO L134 CoverageAnalysis]: Checked inductivity of 411 backedges. 15 proven. 390 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2021-07-09 16:57:43,626 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 16:57:43,627 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [390101161] [2021-07-09 16:57:43,627 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [390101161] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-09 16:57:43,627 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [335273616] [2021-07-09 16:57:43,627 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 31 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 31 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-09 16:57:43,937 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 7 check-sat command(s) [2021-07-09 16:57:43,937 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-07-09 16:57:43,939 INFO L263 TraceCheckSpWp]: Trace formula consists of 601 conjuncts, 52 conjunts are in the unsatisfiable core [2021-07-09 16:57:43,942 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-09 16:57:43,953 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2021-07-09 16:57:43,954 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 16:57:43,955 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 16:57:43,956 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2021-07-09 16:57:43,956 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:6, output treesize:5 [2021-07-09 16:57:43,991 INFO L354 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2021-07-09 16:57:43,991 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 17 treesize of output 21 [2021-07-09 16:57:43,993 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 16:57:43,998 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 16:57:43,999 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2021-07-09 16:57:43,999 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:17, output treesize:15 [2021-07-09 16:57:44,189 WARN L205 SmtUtils]: Spent 141.00 ms on a formula simplification that was a NOOP. DAG size: 20 [2021-07-09 16:57:44,214 INFO L354 Elim1Store]: treesize reduction 36, result has 34.5 percent of original size [2021-07-09 16:57:44,214 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 22 treesize of output 33 [2021-07-09 16:57:44,215 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 16:57:44,223 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 16:57:44,225 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2021-07-09 16:57:44,225 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:26, output treesize:28 [2021-07-09 16:57:44,319 INFO L354 Elim1Store]: treesize reduction 54, result has 34.1 percent of original size [2021-07-09 16:57:44,319 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 27 treesize of output 45 [2021-07-09 16:57:44,321 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 16:57:44,335 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 16:57:44,338 INFO L550 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-1 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2021-07-09 16:57:44,338 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:39, output treesize:45 [2021-07-09 16:57:44,708 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2021-07-09 16:57:44,709 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 16:57:44,725 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 16:57:44,729 INFO L550 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2021-07-09 16:57:44,729 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:58, output treesize:54 [2021-07-09 16:57:45,034 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 5 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 20 [2021-07-09 16:57:45,035 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 16:57:45,054 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 16:57:45,057 INFO L550 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2021-07-09 16:57:45,057 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 4 variables, input treesize:65, output treesize:54 [2021-07-09 16:57:45,737 INFO L354 Elim1Store]: treesize reduction 72, result has 33.9 percent of original size [2021-07-09 16:57:45,738 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 6 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 8 case distinctions, treesize of input 32 treesize of output 57 [2021-07-09 16:57:45,739 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 16:57:45,764 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 16:57:45,768 INFO L550 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-1 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2021-07-09 16:57:45,768 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:65, output treesize:75 [2021-07-09 16:57:45,887 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 7 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 13 [2021-07-09 16:57:45,888 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 16:57:45,915 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 16:57:45,919 INFO L550 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2021-07-09 16:57:45,919 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 4 variables, input treesize:90, output treesize:75 [2021-07-09 16:57:45,963 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 10 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 41 [2021-07-09 16:57:45,964 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 16:57:46,004 INFO L628 ElimStorePlain]: treesize reduction 16, result has 78.7 percent of original size [2021-07-09 16:57:46,007 INFO L550 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-1 vars, End of recursive call: 3 dim-0 vars, and 1 xjuncts. [2021-07-09 16:57:46,007 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 4 variables, input treesize:81, output treesize:59 [2021-07-09 16:57:46,432 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 5 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 20 [2021-07-09 16:57:46,433 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 16:57:46,454 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 16:57:46,458 INFO L550 ElimStorePlain]: Start of recursive call 1: 4 dim-0 vars, 1 dim-2 vars, End of recursive call: 3 dim-0 vars, and 1 xjuncts. [2021-07-09 16:57:46,458 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 5 variables, input treesize:70, output treesize:59 [2021-07-09 16:57:46,886 WARN L313 ript$VariableManager]: TermVariabe |thread_usbThread1of1ForFork0_ieee80211_deregister_hw_~#status~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:57:46,956 INFO L354 Elim1Store]: treesize reduction 122, result has 27.4 percent of original size [2021-07-09 16:57:46,957 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 6 select indices, 6 select index equivalence classes, 6 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 14 case distinctions, treesize of input 37 treesize of output 69 [2021-07-09 16:57:46,958 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 16:57:46,988 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 16:57:46,992 INFO L550 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-1 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2021-07-09 16:57:46,992 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 4 variables, input treesize:70, output treesize:75 [2021-07-09 16:57:47,177 INFO L354 Elim1Store]: treesize reduction 90, result has 33.8 percent of original size [2021-07-09 16:57:47,178 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 6 select indices, 6 select index equivalence classes, 10 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 10 case distinctions, treesize of input 37 treesize of output 69 [2021-07-09 16:57:47,179 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 16:57:47,220 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 16:57:47,226 INFO L550 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-1 vars, End of recursive call: 3 dim-0 vars, and 1 xjuncts. [2021-07-09 16:57:47,226 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 4 variables, input treesize:86, output treesize:100 [2021-07-09 16:57:47,337 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 9 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 13 [2021-07-09 16:57:47,337 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 16:57:47,372 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 16:57:47,377 INFO L550 ElimStorePlain]: Start of recursive call 1: 4 dim-0 vars, 1 dim-2 vars, End of recursive call: 3 dim-0 vars, and 1 xjuncts. [2021-07-09 16:57:47,377 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 5 variables, input treesize:115, output treesize:100 [2021-07-09 16:57:47,426 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 6 select indices, 6 select index equivalence classes, 15 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 0 case distinctions, treesize of input 37 treesize of output 49 [2021-07-09 16:57:47,428 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 16:57:47,487 INFO L628 ElimStorePlain]: treesize reduction 20, result has 80.0 percent of original size [2021-07-09 16:57:47,492 INFO L550 ElimStorePlain]: Start of recursive call 1: 4 dim-0 vars, 1 dim-1 vars, End of recursive call: 4 dim-0 vars, and 1 xjuncts. [2021-07-09 16:57:47,492 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 5 variables, input treesize:106, output treesize:80 [2021-07-09 16:57:48,041 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 7 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 20 [2021-07-09 16:57:48,042 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 16:57:48,078 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 16:57:48,086 INFO L550 ElimStorePlain]: Start of recursive call 1: 7 dim-0 vars, 1 dim-2 vars, End of recursive call: 5 dim-0 vars, and 1 xjuncts. [2021-07-09 16:57:48,086 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 8 variables, input treesize:91, output treesize:80 [2021-07-09 16:57:48,885 WARN L313 ript$VariableManager]: TermVariabe |thread_usbThread1of1ForFork0_ieee80211_deregister_hw_~#status~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:57:48,944 INFO L354 Elim1Store]: treesize reduction 48, result has 46.1 percent of original size [2021-07-09 16:57:48,944 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select index equivalence classes, 10 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 11 case distinctions, treesize of input 36 treesize of output 62 [2021-07-09 16:57:48,948 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 16:57:48,982 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 16:57:48,984 INFO L550 ElimStorePlain]: Start of recursive call 1: 5 dim-0 vars, 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-07-09 16:57:48,984 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 6 variables, input treesize:85, output treesize:14 [2021-07-09 16:57:49,024 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 13 [2021-07-09 16:57:49,025 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 16:57:49,028 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 16:57:49,028 INFO L550 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-07-09 16:57:49,029 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:29, output treesize:9 [2021-07-09 16:57:49,060 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 9 [2021-07-09 16:57:49,061 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 16:57:49,062 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 16:57:49,062 INFO L550 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-07-09 16:57:49,062 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:17, output treesize:5 [2021-07-09 16:57:49,210 INFO L134 CoverageAnalysis]: Checked inductivity of 411 backedges. 20 proven. 391 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-09 16:57:49,211 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [335273616] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-09 16:57:49,211 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-07-09 16:57:49,211 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [20, 25] total 43 [2021-07-09 16:57:49,211 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [750508760] [2021-07-09 16:57:49,211 INFO L462 AbstractCegarLoop]: Interpolant automaton has 43 states [2021-07-09 16:57:49,211 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 16:57:49,212 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 43 interpolants. [2021-07-09 16:57:49,213 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=253, Invalid=1553, Unknown=0, NotChecked=0, Total=1806 [2021-07-09 16:57:49,213 INFO L87 Difference]: Start difference. First operand 39424 states and 116478 transitions. Second operand has 43 states, 43 states have (on average 14.209302325581396) internal successors, (611), 43 states have internal predecessors, (611), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:57:50,102 WARN L205 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 46 DAG size of output: 46 [2021-07-09 16:57:58,288 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 16:57:58,288 INFO L93 Difference]: Finished difference Result 70497 states and 200773 transitions. [2021-07-09 16:57:58,289 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 56 states. [2021-07-09 16:57:58,289 INFO L78 Accepts]: Start accepts. Automaton has has 43 states, 43 states have (on average 14.209302325581396) internal successors, (611), 43 states have internal predecessors, (611), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 317 [2021-07-09 16:57:58,289 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 16:57:58,444 INFO L225 Difference]: With dead ends: 70497 [2021-07-09 16:57:58,444 INFO L226 Difference]: Without dead ends: 70497 [2021-07-09 16:57:58,445 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 397 GetRequests, 299 SyntacticMatches, 6 SemanticMatches, 92 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2638 ImplicationChecksByTransitivity, 6153.6ms TimeCoverageRelationStatistics Valid=1099, Invalid=7642, Unknown=1, NotChecked=0, Total=8742 [2021-07-09 16:57:58,611 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 70497 states. [2021-07-09 16:57:59,439 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 70497 to 39424. [2021-07-09 16:57:59,489 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 39424 states, 39422 states have (on average 2.9546446146821572) internal successors, (116478), 39423 states have internal predecessors, (116478), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:57:59,582 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39424 states to 39424 states and 116478 transitions. [2021-07-09 16:57:59,582 INFO L78 Accepts]: Start accepts. Automaton has 39424 states and 116478 transitions. Word has length 317 [2021-07-09 16:57:59,582 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 16:57:59,582 INFO L482 AbstractCegarLoop]: Abstraction has 39424 states and 116478 transitions. [2021-07-09 16:57:59,583 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 43 states, 43 states have (on average 14.209302325581396) internal successors, (611), 43 states have internal predecessors, (611), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:57:59,583 INFO L276 IsEmpty]: Start isEmpty. Operand 39424 states and 116478 transitions. [2021-07-09 16:57:59,643 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 318 [2021-07-09 16:57:59,644 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 16:57:59,644 INFO L508 BasicCegarLoop]: trace histogram [7, 7, 7, 6, 6, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-09 16:57:59,855 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable52,31 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-09 16:57:59,855 INFO L430 AbstractCegarLoop]: === Iteration 40 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-09 16:57:59,855 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 16:57:59,855 INFO L82 PathProgramCache]: Analyzing trace with hash 126849772, now seen corresponding path program 31 times [2021-07-09 16:57:59,855 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 16:57:59,855 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2128330609] [2021-07-09 16:57:59,855 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 16:57:59,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 16:58:00,648 INFO L134 CoverageAnalysis]: Checked inductivity of 411 backedges. 9 proven. 396 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2021-07-09 16:58:00,649 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 16:58:00,649 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2128330609] [2021-07-09 16:58:00,649 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2128330609] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-09 16:58:00,649 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [442180121] [2021-07-09 16:58:00,649 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 32 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 32 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-09 16:58:00,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 16:58:00,825 INFO L263 TraceCheckSpWp]: Trace formula consists of 601 conjuncts, 52 conjunts are in the unsatisfiable core [2021-07-09 16:58:00,827 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-09 16:58:00,847 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 9 [2021-07-09 16:58:00,848 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 16:58:00,849 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 16:58:00,850 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-07-09 16:58:00,850 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:12, output treesize:5 [2021-07-09 16:58:00,864 INFO L354 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2021-07-09 16:58:00,865 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 17 treesize of output 21 [2021-07-09 16:58:00,866 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 16:58:00,869 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 16:58:00,870 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-07-09 16:58:00,870 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:17, output treesize:15 [2021-07-09 16:58:00,928 INFO L354 Elim1Store]: treesize reduction 36, result has 34.5 percent of original size [2021-07-09 16:58:00,929 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 22 treesize of output 33 [2021-07-09 16:58:00,930 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 16:58:00,937 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 16:58:00,938 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2021-07-09 16:58:00,938 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:26, output treesize:28 [2021-07-09 16:58:01,270 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2021-07-09 16:58:01,271 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 16:58:01,281 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 16:58:01,282 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2021-07-09 16:58:01,282 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:41, output treesize:37 [2021-07-09 16:58:01,483 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 20 [2021-07-09 16:58:01,484 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 16:58:01,496 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 16:58:01,497 INFO L550 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2021-07-09 16:58:01,497 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:48, output treesize:37 [2021-07-09 16:58:01,926 INFO L354 Elim1Store]: treesize reduction 54, result has 34.1 percent of original size [2021-07-09 16:58:01,926 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 27 treesize of output 45 [2021-07-09 16:58:01,928 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 16:58:01,945 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 16:58:01,946 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2021-07-09 16:58:01,946 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:48, output treesize:54 [2021-07-09 16:58:02,039 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 5 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 13 [2021-07-09 16:58:02,040 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 16:58:02,056 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 16:58:02,058 INFO L550 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2021-07-09 16:58:02,058 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:69, output treesize:54 [2021-07-09 16:58:02,081 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 33 [2021-07-09 16:58:02,082 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 16:58:02,107 INFO L628 ElimStorePlain]: treesize reduction 12, result has 77.8 percent of original size [2021-07-09 16:58:02,109 INFO L550 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-1 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2021-07-09 16:58:02,109 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:60, output treesize:42 [2021-07-09 16:58:02,415 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 20 [2021-07-09 16:58:02,416 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 16:58:02,429 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 16:58:02,431 INFO L550 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2021-07-09 16:58:02,432 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 4 variables, input treesize:53, output treesize:42 [2021-07-09 16:58:02,683 WARN L313 ript$VariableManager]: TermVariabe |thread_usbThread1of1ForFork0_ieee80211_deregister_hw_~#status~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:58:02,737 INFO L354 Elim1Store]: treesize reduction 96, result has 27.8 percent of original size [2021-07-09 16:58:02,738 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 3 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 11 case distinctions, treesize of input 32 treesize of output 57 [2021-07-09 16:58:02,739 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 16:58:02,758 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 16:58:02,760 INFO L550 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2021-07-09 16:58:02,760 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:53, output treesize:54 [2021-07-09 16:58:02,902 INFO L354 Elim1Store]: treesize reduction 72, result has 33.9 percent of original size [2021-07-09 16:58:02,902 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 6 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 8 case distinctions, treesize of input 32 treesize of output 57 [2021-07-09 16:58:02,904 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 16:58:02,933 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 16:58:02,937 INFO L550 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-1 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2021-07-09 16:58:02,937 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:65, output treesize:75 [2021-07-09 16:58:03,034 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 7 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 13 [2021-07-09 16:58:03,035 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 16:58:03,060 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 16:58:03,064 INFO L550 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2021-07-09 16:58:03,064 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 4 variables, input treesize:90, output treesize:75 [2021-07-09 16:58:03,103 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 10 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 41 [2021-07-09 16:58:03,104 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 16:58:03,144 INFO L628 ElimStorePlain]: treesize reduction 16, result has 78.7 percent of original size [2021-07-09 16:58:03,147 INFO L550 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-1 vars, End of recursive call: 3 dim-0 vars, and 1 xjuncts. [2021-07-09 16:58:03,147 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 4 variables, input treesize:81, output treesize:59 [2021-07-09 16:58:03,582 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 5 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 20 [2021-07-09 16:58:03,584 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 16:58:03,605 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 16:58:03,609 INFO L550 ElimStorePlain]: Start of recursive call 1: 4 dim-0 vars, 1 dim-2 vars, End of recursive call: 3 dim-0 vars, and 1 xjuncts. [2021-07-09 16:58:03,609 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 5 variables, input treesize:70, output treesize:59 [2021-07-09 16:58:04,043 WARN L313 ript$VariableManager]: TermVariabe |thread_usbThread1of1ForFork0_ieee80211_deregister_hw_~#status~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:58:04,088 INFO L354 Elim1Store]: treesize reduction 40, result has 45.2 percent of original size [2021-07-09 16:58:04,088 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 6 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 9 case distinctions, treesize of input 31 treesize of output 51 [2021-07-09 16:58:04,091 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 16:58:04,113 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 16:58:04,115 INFO L550 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-07-09 16:58:04,115 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 4 variables, input treesize:64, output treesize:22 [2021-07-09 16:58:04,161 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 13 [2021-07-09 16:58:04,161 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 16:58:04,167 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 16:58:04,168 INFO L550 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-07-09 16:58:04,168 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:37, output treesize:14 [2021-07-09 16:58:04,239 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 16:58:04,240 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 25 [2021-07-09 16:58:04,241 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 16:58:04,247 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 16:58:04,248 INFO L550 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2021-07-09 16:58:04,249 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:50, output treesize:30 [2021-07-09 16:58:04,407 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 17 [2021-07-09 16:58:04,408 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 16:58:04,412 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 16:58:04,413 INFO L550 ElimStorePlain]: Start of recursive call 1: 4 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-07-09 16:58:04,413 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 5 variables, input treesize:45, output treesize:11 [2021-07-09 16:58:04,494 INFO L134 CoverageAnalysis]: Checked inductivity of 411 backedges. 20 proven. 391 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-09 16:58:04,494 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [442180121] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-09 16:58:04,494 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-07-09 16:58:04,494 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [21, 24] total 40 [2021-07-09 16:58:04,494 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [383272423] [2021-07-09 16:58:04,495 INFO L462 AbstractCegarLoop]: Interpolant automaton has 40 states [2021-07-09 16:58:04,495 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 16:58:04,495 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 40 interpolants. [2021-07-09 16:58:04,495 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=183, Invalid=1377, Unknown=0, NotChecked=0, Total=1560 [2021-07-09 16:58:04,495 INFO L87 Difference]: Start difference. First operand 39424 states and 116478 transitions. Second operand has 40 states, 40 states have (on average 14.6) internal successors, (584), 40 states have internal predecessors, (584), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:58:05,328 WARN L205 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 37 DAG size of output: 37 [2021-07-09 16:58:12,677 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 16:58:12,677 INFO L93 Difference]: Finished difference Result 61688 states and 175581 transitions. [2021-07-09 16:58:12,678 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 57 states. [2021-07-09 16:58:12,678 INFO L78 Accepts]: Start accepts. Automaton has has 40 states, 40 states have (on average 14.6) internal successors, (584), 40 states have internal predecessors, (584), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 317 [2021-07-09 16:58:12,678 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 16:58:12,811 INFO L225 Difference]: With dead ends: 61688 [2021-07-09 16:58:12,811 INFO L226 Difference]: Without dead ends: 61688 [2021-07-09 16:58:12,812 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 400 GetRequests, 302 SyntacticMatches, 8 SemanticMatches, 90 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2561 ImplicationChecksByTransitivity, 3825.5ms TimeCoverageRelationStatistics Valid=923, Invalid=7449, Unknown=0, NotChecked=0, Total=8372 [2021-07-09 16:58:12,955 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 61688 states. [2021-07-09 16:58:13,776 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 61688 to 40007. [2021-07-09 16:58:13,827 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 40007 states, 40005 states have (on average 2.955280589926259) internal successors, (118226), 40006 states have internal predecessors, (118226), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:58:13,915 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40007 states to 40007 states and 118226 transitions. [2021-07-09 16:58:13,915 INFO L78 Accepts]: Start accepts. Automaton has 40007 states and 118226 transitions. Word has length 317 [2021-07-09 16:58:13,915 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 16:58:13,915 INFO L482 AbstractCegarLoop]: Abstraction has 40007 states and 118226 transitions. [2021-07-09 16:58:13,916 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 40 states, 40 states have (on average 14.6) internal successors, (584), 40 states have internal predecessors, (584), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:58:13,916 INFO L276 IsEmpty]: Start isEmpty. Operand 40007 states and 118226 transitions. [2021-07-09 16:58:13,972 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 318 [2021-07-09 16:58:13,972 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 16:58:13,972 INFO L508 BasicCegarLoop]: trace histogram [7, 7, 7, 6, 6, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-09 16:58:14,180 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 32 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable54 [2021-07-09 16:58:14,180 INFO L430 AbstractCegarLoop]: === Iteration 41 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-09 16:58:14,181 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 16:58:14,181 INFO L82 PathProgramCache]: Analyzing trace with hash 1995960782, now seen corresponding path program 32 times [2021-07-09 16:58:14,181 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 16:58:14,181 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [977137601] [2021-07-09 16:58:14,181 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 16:58:14,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 16:58:14,657 INFO L134 CoverageAnalysis]: Checked inductivity of 411 backedges. 9 proven. 384 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2021-07-09 16:58:14,657 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 16:58:14,657 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [977137601] [2021-07-09 16:58:14,657 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [977137601] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-09 16:58:14,657 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [457913910] [2021-07-09 16:58:14,657 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 33 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 33 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-09 16:58:14,993 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-07-09 16:58:14,993 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-07-09 16:58:14,995 INFO L263 TraceCheckSpWp]: Trace formula consists of 601 conjuncts, 19 conjunts are in the unsatisfiable core [2021-07-09 16:58:14,998 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-09 16:58:15,081 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2021-07-09 16:58:15,082 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 16:58:15,086 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 16:58:15,087 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-07-09 16:58:15,087 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:22, output treesize:19 [2021-07-09 16:58:15,144 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 14 [2021-07-09 16:58:15,145 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 16:58:15,148 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 16:58:15,149 INFO L550 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-07-09 16:58:15,149 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:26, output treesize:11 [2021-07-09 16:58:15,628 INFO L134 CoverageAnalysis]: Checked inductivity of 411 backedges. 9 proven. 384 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2021-07-09 16:58:15,628 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [457913910] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-09 16:58:15,628 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-07-09 16:58:15,629 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11] total 17 [2021-07-09 16:58:15,629 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1336473563] [2021-07-09 16:58:15,629 INFO L462 AbstractCegarLoop]: Interpolant automaton has 17 states [2021-07-09 16:58:15,629 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 16:58:15,629 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2021-07-09 16:58:15,629 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=235, Unknown=0, NotChecked=0, Total=272 [2021-07-09 16:58:15,630 INFO L87 Difference]: Start difference. First operand 40007 states and 118226 transitions. Second operand has 17 states, 17 states have (on average 31.176470588235293) internal successors, (530), 17 states have internal predecessors, (530), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:58:16,420 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 16:58:16,420 INFO L93 Difference]: Finished difference Result 44100 states and 126633 transitions. [2021-07-09 16:58:16,420 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-07-09 16:58:16,420 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 31.176470588235293) internal successors, (530), 17 states have internal predecessors, (530), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 317 [2021-07-09 16:58:16,421 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 16:58:16,735 INFO L225 Difference]: With dead ends: 44100 [2021-07-09 16:58:16,735 INFO L226 Difference]: Without dead ends: 44100 [2021-07-09 16:58:16,735 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 341 GetRequests, 311 SyntacticMatches, 1 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 156 ImplicationChecksByTransitivity, 588.9ms TimeCoverageRelationStatistics Valid=123, Invalid=807, Unknown=0, NotChecked=0, Total=930 [2021-07-09 16:58:16,826 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44100 states. [2021-07-09 16:58:17,247 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44100 to 40030. [2021-07-09 16:58:17,296 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 40030 states, 40028 states have (on average 2.9542570200859397) internal successors, (118253), 40029 states have internal predecessors, (118253), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:58:17,720 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40030 states to 40030 states and 118253 transitions. [2021-07-09 16:58:17,720 INFO L78 Accepts]: Start accepts. Automaton has 40030 states and 118253 transitions. Word has length 317 [2021-07-09 16:58:17,720 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 16:58:17,720 INFO L482 AbstractCegarLoop]: Abstraction has 40030 states and 118253 transitions. [2021-07-09 16:58:17,720 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 17 states, 17 states have (on average 31.176470588235293) internal successors, (530), 17 states have internal predecessors, (530), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:58:17,720 INFO L276 IsEmpty]: Start isEmpty. Operand 40030 states and 118253 transitions. [2021-07-09 16:58:17,778 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 390 [2021-07-09 16:58:17,779 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 16:58:17,779 INFO L508 BasicCegarLoop]: trace histogram [9, 9, 9, 8, 8, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-09 16:58:17,996 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 33 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable56 [2021-07-09 16:58:17,996 INFO L430 AbstractCegarLoop]: === Iteration 42 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-09 16:58:17,997 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 16:58:17,997 INFO L82 PathProgramCache]: Analyzing trace with hash -1480574631, now seen corresponding path program 33 times [2021-07-09 16:58:17,997 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 16:58:17,997 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [138582913] [2021-07-09 16:58:17,997 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 16:58:18,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 16:58:18,711 INFO L134 CoverageAnalysis]: Checked inductivity of 716 backedges. 12 proven. 680 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2021-07-09 16:58:18,711 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 16:58:18,711 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [138582913] [2021-07-09 16:58:18,711 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [138582913] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-09 16:58:18,711 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1318212217] [2021-07-09 16:58:18,711 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 34 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 34 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-09 16:58:18,966 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 7 check-sat command(s) [2021-07-09 16:58:18,966 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-07-09 16:58:18,968 INFO L263 TraceCheckSpWp]: Trace formula consists of 682 conjuncts, 25 conjunts are in the unsatisfiable core [2021-07-09 16:58:18,971 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-09 16:58:18,982 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2021-07-09 16:58:18,983 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 16:58:18,984 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 16:58:18,985 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-07-09 16:58:18,985 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:6, output treesize:5 [2021-07-09 16:58:18,993 INFO L354 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2021-07-09 16:58:18,994 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 11 treesize of output 11 [2021-07-09 16:58:18,995 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 16:58:18,996 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 16:58:18,996 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-07-09 16:58:18,996 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:11, output treesize:4 [2021-07-09 16:58:19,033 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2021-07-09 16:58:19,034 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 16:58:19,039 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 16:58:19,040 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-07-09 16:58:19,040 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:26, output treesize:23 [2021-07-09 16:58:19,080 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 16:58:19,081 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 25 [2021-07-09 16:58:19,082 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 16:58:19,087 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 16:58:19,088 INFO L550 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-07-09 16:58:19,088 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 4 variables, input treesize:50, output treesize:19 [2021-07-09 16:58:19,104 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 14 [2021-07-09 16:58:19,105 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 16:58:19,108 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 16:58:19,109 INFO L550 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-07-09 16:58:19,109 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:26, output treesize:11 [2021-07-09 16:58:19,653 INFO L134 CoverageAnalysis]: Checked inductivity of 716 backedges. 12 proven. 680 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2021-07-09 16:58:19,653 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1318212217] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-09 16:58:19,653 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-07-09 16:58:19,653 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 15] total 21 [2021-07-09 16:58:19,653 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [907578442] [2021-07-09 16:58:19,653 INFO L462 AbstractCegarLoop]: Interpolant automaton has 21 states [2021-07-09 16:58:19,654 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 16:58:19,654 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2021-07-09 16:58:19,654 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=50, Invalid=370, Unknown=0, NotChecked=0, Total=420 [2021-07-09 16:58:19,654 INFO L87 Difference]: Start difference. First operand 40030 states and 118253 transitions. Second operand has 21 states, 21 states have (on average 31.523809523809526) internal successors, (662), 21 states have internal predecessors, (662), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:58:20,798 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 16:58:20,798 INFO L93 Difference]: Finished difference Result 44097 states and 126630 transitions. [2021-07-09 16:58:20,798 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2021-07-09 16:58:20,798 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 21 states have (on average 31.523809523809526) internal successors, (662), 21 states have internal predecessors, (662), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 389 [2021-07-09 16:58:20,799 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 16:58:20,881 INFO L225 Difference]: With dead ends: 44097 [2021-07-09 16:58:20,881 INFO L226 Difference]: Without dead ends: 44097 [2021-07-09 16:58:20,882 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 426 GetRequests, 383 SyntacticMatches, 3 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 373 ImplicationChecksByTransitivity, 780.1ms TimeCoverageRelationStatistics Valid=200, Invalid=1522, Unknown=0, NotChecked=0, Total=1722 [2021-07-09 16:58:21,106 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44097 states. [2021-07-09 16:58:21,610 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44097 to 40820. [2021-07-09 16:58:21,658 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 40820 states, 40818 states have (on average 2.93745406438336) internal successors, (119901), 40819 states have internal predecessors, (119901), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:58:21,740 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40820 states to 40820 states and 119901 transitions. [2021-07-09 16:58:21,741 INFO L78 Accepts]: Start accepts. Automaton has 40820 states and 119901 transitions. Word has length 389 [2021-07-09 16:58:21,741 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 16:58:21,741 INFO L482 AbstractCegarLoop]: Abstraction has 40820 states and 119901 transitions. [2021-07-09 16:58:21,741 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 21 states, 21 states have (on average 31.523809523809526) internal successors, (662), 21 states have internal predecessors, (662), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:58:21,741 INFO L276 IsEmpty]: Start isEmpty. Operand 40820 states and 119901 transitions. [2021-07-09 16:58:21,799 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 390 [2021-07-09 16:58:21,799 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 16:58:21,800 INFO L508 BasicCegarLoop]: trace histogram [9, 9, 9, 8, 8, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-09 16:58:22,017 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 34 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable57 [2021-07-09 16:58:22,017 INFO L430 AbstractCegarLoop]: === Iteration 43 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-09 16:58:22,018 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 16:58:22,018 INFO L82 PathProgramCache]: Analyzing trace with hash -75994967, now seen corresponding path program 34 times [2021-07-09 16:58:22,018 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 16:58:22,018 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1732055863] [2021-07-09 16:58:22,018 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 16:58:22,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 16:58:22,893 INFO L134 CoverageAnalysis]: Checked inductivity of 716 backedges. 12 proven. 686 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2021-07-09 16:58:22,893 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 16:58:22,893 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1732055863] [2021-07-09 16:58:22,893 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1732055863] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-09 16:58:22,893 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [208409892] [2021-07-09 16:58:22,893 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 35 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 35 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-09 16:58:23,170 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-07-09 16:58:23,170 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-07-09 16:58:23,173 INFO L263 TraceCheckSpWp]: Trace formula consists of 727 conjuncts, 39 conjunts are in the unsatisfiable core [2021-07-09 16:58:23,176 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-09 16:58:23,186 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2021-07-09 16:58:23,186 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 16:58:23,188 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 16:58:23,188 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-07-09 16:58:23,188 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:6, output treesize:5 [2021-07-09 16:58:23,202 INFO L354 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2021-07-09 16:58:23,202 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 17 treesize of output 21 [2021-07-09 16:58:23,203 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 16:58:23,207 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 16:58:23,207 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-07-09 16:58:23,208 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:17, output treesize:15 [2021-07-09 16:58:23,251 INFO L354 Elim1Store]: treesize reduction 36, result has 34.5 percent of original size [2021-07-09 16:58:23,251 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 22 treesize of output 33 [2021-07-09 16:58:23,254 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 16:58:23,375 WARN L205 SmtUtils]: Spent 120.00 ms on a formula simplification that was a NOOP. DAG size: 18 [2021-07-09 16:58:23,375 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 16:58:23,376 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2021-07-09 16:58:23,377 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:26, output treesize:28 [2021-07-09 16:58:23,611 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2021-07-09 16:58:23,612 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 16:58:23,622 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 16:58:23,623 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2021-07-09 16:58:23,623 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:41, output treesize:37 [2021-07-09 16:58:23,817 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 20 [2021-07-09 16:58:23,818 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 16:58:23,829 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 16:58:23,832 INFO L550 ElimStorePlain]: Start of recursive call 1: 4 dim-0 vars, 1 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2021-07-09 16:58:23,833 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 5 variables, input treesize:48, output treesize:37 [2021-07-09 16:58:23,987 INFO L354 Elim1Store]: treesize reduction 54, result has 34.1 percent of original size [2021-07-09 16:58:23,987 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 27 treesize of output 45 [2021-07-09 16:58:23,988 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 16:58:24,004 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 16:58:24,008 INFO L550 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-1 vars, End of recursive call: 3 dim-0 vars, and 1 xjuncts. [2021-07-09 16:58:24,008 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 4 variables, input treesize:48, output treesize:54 [2021-07-09 16:58:24,701 INFO L354 Elim1Store]: treesize reduction 16, result has 51.5 percent of original size [2021-07-09 16:58:24,701 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 6 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 4 case distinctions, treesize of input 26 treesize of output 32 [2021-07-09 16:58:24,704 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 16:58:24,718 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 16:58:24,720 INFO L550 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-07-09 16:58:24,720 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 4 variables, input treesize:59, output treesize:14 [2021-07-09 16:58:24,755 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 13 [2021-07-09 16:58:24,756 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 16:58:24,759 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 16:58:24,760 INFO L550 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-07-09 16:58:24,760 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:29, output treesize:9 [2021-07-09 16:58:24,784 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 9 [2021-07-09 16:58:24,785 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 16:58:24,786 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 16:58:24,787 INFO L550 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-07-09 16:58:24,787 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:17, output treesize:5 [2021-07-09 16:58:25,241 INFO L134 CoverageAnalysis]: Checked inductivity of 716 backedges. 12 proven. 686 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2021-07-09 16:58:25,241 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [208409892] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-09 16:58:25,241 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-07-09 16:58:25,241 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 21] total 35 [2021-07-09 16:58:25,241 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [930748468] [2021-07-09 16:58:25,242 INFO L462 AbstractCegarLoop]: Interpolant automaton has 35 states [2021-07-09 16:58:25,242 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 16:58:25,242 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 35 interpolants. [2021-07-09 16:58:25,242 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=133, Invalid=1057, Unknown=0, NotChecked=0, Total=1190 [2021-07-09 16:58:25,242 INFO L87 Difference]: Start difference. First operand 40820 states and 119901 transitions. Second operand has 35 states, 35 states have (on average 20.771428571428572) internal successors, (727), 35 states have internal predecessors, (727), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:58:26,165 WARN L205 SmtUtils]: Spent 125.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 46 [2021-07-09 16:58:26,316 WARN L205 SmtUtils]: Spent 125.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 49 [2021-07-09 16:58:27,904 WARN L205 SmtUtils]: Spent 125.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 65 [2021-07-09 16:58:28,904 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 16:58:28,904 INFO L93 Difference]: Finished difference Result 49455 states and 138553 transitions. [2021-07-09 16:58:28,905 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 52 states. [2021-07-09 16:58:28,905 INFO L78 Accepts]: Start accepts. Automaton has has 35 states, 35 states have (on average 20.771428571428572) internal successors, (727), 35 states have internal predecessors, (727), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 389 [2021-07-09 16:58:28,906 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 16:58:29,007 INFO L225 Difference]: With dead ends: 49455 [2021-07-09 16:58:29,007 INFO L226 Difference]: Without dead ends: 49455 [2021-07-09 16:58:29,008 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 456 GetRequests, 375 SyntacticMatches, 3 SemanticMatches, 78 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1811 ImplicationChecksByTransitivity, 3161.7ms TimeCoverageRelationStatistics Valid=757, Invalid=5563, Unknown=0, NotChecked=0, Total=6320 [2021-07-09 16:58:29,127 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 49455 states. [2021-07-09 16:58:29,753 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 49455 to 40820. [2021-07-09 16:58:29,804 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 40820 states, 40818 states have (on average 2.93745406438336) internal successors, (119901), 40819 states have internal predecessors, (119901), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:58:29,893 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40820 states to 40820 states and 119901 transitions. [2021-07-09 16:58:29,894 INFO L78 Accepts]: Start accepts. Automaton has 40820 states and 119901 transitions. Word has length 389 [2021-07-09 16:58:29,894 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 16:58:29,896 INFO L482 AbstractCegarLoop]: Abstraction has 40820 states and 119901 transitions. [2021-07-09 16:58:29,896 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 35 states, 35 states have (on average 20.771428571428572) internal successors, (727), 35 states have internal predecessors, (727), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:58:29,896 INFO L276 IsEmpty]: Start isEmpty. Operand 40820 states and 119901 transitions. [2021-07-09 16:58:29,957 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 390 [2021-07-09 16:58:29,958 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 16:58:29,958 INFO L508 BasicCegarLoop]: trace histogram [9, 9, 9, 8, 8, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-09 16:58:30,176 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 35 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable58 [2021-07-09 16:58:30,176 INFO L430 AbstractCegarLoop]: === Iteration 44 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-09 16:58:30,176 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 16:58:30,176 INFO L82 PathProgramCache]: Analyzing trace with hash 1403552039, now seen corresponding path program 35 times [2021-07-09 16:58:30,177 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 16:58:30,177 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2003599704] [2021-07-09 16:58:30,177 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 16:58:30,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 16:58:31,194 INFO L134 CoverageAnalysis]: Checked inductivity of 716 backedges. 12 proven. 686 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2021-07-09 16:58:31,195 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 16:58:31,195 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2003599704] [2021-07-09 16:58:31,195 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2003599704] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-09 16:58:31,195 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [724500769] [2021-07-09 16:58:31,195 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 36 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 36 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-09 16:58:31,531 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 8 check-sat command(s) [2021-07-09 16:58:31,531 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-07-09 16:58:31,534 INFO L263 TraceCheckSpWp]: Trace formula consists of 727 conjuncts, 37 conjunts are in the unsatisfiable core [2021-07-09 16:58:31,536 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-09 16:58:31,549 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2021-07-09 16:58:31,549 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 16:58:31,551 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 16:58:31,551 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-07-09 16:58:31,551 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:6, output treesize:5 [2021-07-09 16:58:31,568 INFO L354 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2021-07-09 16:58:31,568 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 17 treesize of output 21 [2021-07-09 16:58:31,569 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 16:58:31,574 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 16:58:31,574 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-07-09 16:58:31,574 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:17, output treesize:15 [2021-07-09 16:58:31,626 INFO L354 Elim1Store]: treesize reduction 36, result has 34.5 percent of original size [2021-07-09 16:58:31,626 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 22 treesize of output 33 [2021-07-09 16:58:31,627 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 16:58:31,636 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 16:58:31,637 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2021-07-09 16:58:31,637 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:26, output treesize:28 [2021-07-09 16:58:31,876 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2021-07-09 16:58:31,877 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 16:58:31,887 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 16:58:31,888 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2021-07-09 16:58:31,888 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:41, output treesize:37 [2021-07-09 16:58:32,085 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 20 [2021-07-09 16:58:32,086 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 16:58:32,097 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 16:58:32,101 INFO L550 ElimStorePlain]: Start of recursive call 1: 4 dim-0 vars, 1 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2021-07-09 16:58:32,101 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 5 variables, input treesize:48, output treesize:37 [2021-07-09 16:58:32,245 INFO L354 Elim1Store]: treesize reduction 42, result has 27.6 percent of original size [2021-07-09 16:58:32,245 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 22 treesize of output 30 [2021-07-09 16:58:32,246 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 16:58:32,257 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 16:58:32,260 INFO L550 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-1 vars, End of recursive call: 3 dim-0 vars, and 1 xjuncts. [2021-07-09 16:58:32,261 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 4 variables, input treesize:43, output treesize:42 [2021-07-09 16:58:32,793 INFO L354 Elim1Store]: treesize reduction 12, result has 52.0 percent of original size [2021-07-09 16:58:32,794 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 21 treesize of output 25 [2021-07-09 16:58:32,796 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 16:58:32,805 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 16:58:32,806 INFO L550 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-07-09 16:58:32,806 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:42, output treesize:14 [2021-07-09 16:58:32,842 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 13 [2021-07-09 16:58:32,843 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 16:58:32,846 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 16:58:32,847 INFO L550 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-07-09 16:58:32,847 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:29, output treesize:9 [2021-07-09 16:58:32,893 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 14 [2021-07-09 16:58:32,894 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 16:58:32,897 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 16:58:32,898 INFO L550 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-07-09 16:58:32,898 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:26, output treesize:11 [2021-07-09 16:58:33,350 INFO L134 CoverageAnalysis]: Checked inductivity of 716 backedges. 12 proven. 686 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2021-07-09 16:58:33,350 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [724500769] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-09 16:58:33,350 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-07-09 16:58:33,350 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 20] total 32 [2021-07-09 16:58:33,351 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1264633343] [2021-07-09 16:58:33,354 INFO L462 AbstractCegarLoop]: Interpolant automaton has 32 states [2021-07-09 16:58:33,354 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 16:58:33,354 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 32 interpolants. [2021-07-09 16:58:33,354 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=117, Invalid=875, Unknown=0, NotChecked=0, Total=992 [2021-07-09 16:58:33,354 INFO L87 Difference]: Start difference. First operand 40820 states and 119901 transitions. Second operand has 32 states, 32 states have (on average 21.875) internal successors, (700), 32 states have internal predecessors, (700), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:58:35,304 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 16:58:35,304 INFO L93 Difference]: Finished difference Result 45945 states and 130672 transitions. [2021-07-09 16:58:35,305 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2021-07-09 16:58:35,305 INFO L78 Accepts]: Start accepts. Automaton has has 32 states, 32 states have (on average 21.875) internal successors, (700), 32 states have internal predecessors, (700), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 389 [2021-07-09 16:58:35,305 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 16:58:35,395 INFO L225 Difference]: With dead ends: 45945 [2021-07-09 16:58:35,395 INFO L226 Difference]: Without dead ends: 45945 [2021-07-09 16:58:35,395 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 434 GetRequests, 376 SyntacticMatches, 5 SemanticMatches, 53 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 824 ImplicationChecksByTransitivity, 1552.6ms TimeCoverageRelationStatistics Valid=327, Invalid=2643, Unknown=0, NotChecked=0, Total=2970 [2021-07-09 16:58:35,504 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45945 states. [2021-07-09 16:58:36,083 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45945 to 40820. [2021-07-09 16:58:36,136 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 40820 states, 40818 states have (on average 2.93745406438336) internal successors, (119901), 40819 states have internal predecessors, (119901), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:58:36,227 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40820 states to 40820 states and 119901 transitions. [2021-07-09 16:58:36,227 INFO L78 Accepts]: Start accepts. Automaton has 40820 states and 119901 transitions. Word has length 389 [2021-07-09 16:58:36,227 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 16:58:36,228 INFO L482 AbstractCegarLoop]: Abstraction has 40820 states and 119901 transitions. [2021-07-09 16:58:36,228 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 32 states, 32 states have (on average 21.875) internal successors, (700), 32 states have internal predecessors, (700), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:58:36,228 INFO L276 IsEmpty]: Start isEmpty. Operand 40820 states and 119901 transitions. [2021-07-09 16:58:36,290 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 390 [2021-07-09 16:58:36,290 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 16:58:36,290 INFO L508 BasicCegarLoop]: trace histogram [9, 9, 9, 8, 8, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-09 16:58:36,507 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable60,36 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-09 16:58:36,508 INFO L430 AbstractCegarLoop]: === Iteration 45 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-09 16:58:36,508 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 16:58:36,509 INFO L82 PathProgramCache]: Analyzing trace with hash -2007946765, now seen corresponding path program 36 times [2021-07-09 16:58:36,509 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 16:58:36,509 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [888575631] [2021-07-09 16:58:36,509 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 16:58:36,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 16:58:37,592 INFO L134 CoverageAnalysis]: Checked inductivity of 716 backedges. 12 proven. 692 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2021-07-09 16:58:37,592 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 16:58:37,592 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [888575631] [2021-07-09 16:58:37,592 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [888575631] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-09 16:58:37,592 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [89244268] [2021-07-09 16:58:37,592 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 37 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 37 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-09 16:58:38,278 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 8 check-sat command(s) [2021-07-09 16:58:38,278 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-07-09 16:58:38,281 INFO L263 TraceCheckSpWp]: Trace formula consists of 727 conjuncts, 45 conjunts are in the unsatisfiable core [2021-07-09 16:58:38,284 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-09 16:58:38,294 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2021-07-09 16:58:38,295 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 16:58:38,296 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 16:58:38,296 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-07-09 16:58:38,296 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:6, output treesize:5 [2021-07-09 16:58:38,310 INFO L354 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2021-07-09 16:58:38,310 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 17 treesize of output 21 [2021-07-09 16:58:38,312 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 16:58:38,315 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 16:58:38,316 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-07-09 16:58:38,316 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:17, output treesize:15 [2021-07-09 16:58:38,359 INFO L354 Elim1Store]: treesize reduction 36, result has 34.5 percent of original size [2021-07-09 16:58:38,360 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 22 treesize of output 33 [2021-07-09 16:58:38,361 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 16:58:38,368 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 16:58:38,368 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2021-07-09 16:58:38,369 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:26, output treesize:28 [2021-07-09 16:58:38,584 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2021-07-09 16:58:38,585 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 16:58:38,594 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 16:58:38,595 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2021-07-09 16:58:38,595 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:41, output treesize:37 [2021-07-09 16:58:38,772 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 20 [2021-07-09 16:58:38,773 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 16:58:38,783 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 16:58:38,784 INFO L550 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2021-07-09 16:58:38,784 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:48, output treesize:37 [2021-07-09 16:58:38,852 INFO L354 Elim1Store]: treesize reduction 54, result has 34.1 percent of original size [2021-07-09 16:58:38,852 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 27 treesize of output 45 [2021-07-09 16:58:38,854 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 16:58:38,870 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 16:58:38,873 INFO L550 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-1 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2021-07-09 16:58:38,873 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:48, output treesize:54 [2021-07-09 16:58:39,563 INFO L354 Elim1Store]: treesize reduction 72, result has 33.9 percent of original size [2021-07-09 16:58:39,563 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 6 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 8 case distinctions, treesize of input 32 treesize of output 57 [2021-07-09 16:58:39,565 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 16:58:39,589 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 16:58:39,592 INFO L550 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-1 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2021-07-09 16:58:39,593 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:65, output treesize:75 [2021-07-09 16:58:39,709 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 7 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 13 [2021-07-09 16:58:39,710 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 16:58:39,737 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 16:58:39,741 INFO L550 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2021-07-09 16:58:39,741 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 4 variables, input treesize:90, output treesize:75 [2021-07-09 16:58:39,778 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 10 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 41 [2021-07-09 16:58:39,780 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 16:58:39,819 INFO L628 ElimStorePlain]: treesize reduction 16, result has 78.7 percent of original size [2021-07-09 16:58:39,823 INFO L550 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-1 vars, End of recursive call: 3 dim-0 vars, and 1 xjuncts. [2021-07-09 16:58:39,823 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 4 variables, input treesize:81, output treesize:59 [2021-07-09 16:58:40,262 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 5 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 20 [2021-07-09 16:58:40,263 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 16:58:40,283 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 16:58:40,289 INFO L550 ElimStorePlain]: Start of recursive call 1: 6 dim-0 vars, 1 dim-2 vars, End of recursive call: 4 dim-0 vars, and 1 xjuncts. [2021-07-09 16:58:40,289 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 7 variables, input treesize:70, output treesize:59 [2021-07-09 16:58:40,895 WARN L313 ript$VariableManager]: TermVariabe |thread_usbThread1of1ForFork0_ieee80211_deregister_hw_~#status~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:58:40,941 INFO L354 Elim1Store]: treesize reduction 40, result has 45.2 percent of original size [2021-07-09 16:58:40,941 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 6 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 9 case distinctions, treesize of input 31 treesize of output 51 [2021-07-09 16:58:40,944 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 16:58:40,966 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 16:58:40,967 INFO L550 ElimStorePlain]: Start of recursive call 1: 4 dim-0 vars, 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-07-09 16:58:40,967 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 5 variables, input treesize:64, output treesize:14 [2021-07-09 16:58:41,006 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 13 [2021-07-09 16:58:41,007 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 16:58:41,010 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 16:58:41,011 INFO L550 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-07-09 16:58:41,011 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:29, output treesize:9 [2021-07-09 16:58:41,023 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 14 [2021-07-09 16:58:41,024 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 16:58:41,027 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 16:58:41,028 INFO L550 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-07-09 16:58:41,028 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:26, output treesize:11 [2021-07-09 16:58:41,377 INFO L134 CoverageAnalysis]: Checked inductivity of 716 backedges. 17 proven. 687 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2021-07-09 16:58:41,377 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [89244268] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-09 16:58:41,377 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-07-09 16:58:41,377 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [19, 23] total 38 [2021-07-09 16:58:41,377 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1135943285] [2021-07-09 16:58:41,378 INFO L462 AbstractCegarLoop]: Interpolant automaton has 38 states [2021-07-09 16:58:41,378 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 16:58:41,378 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 38 interpolants. [2021-07-09 16:58:41,378 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=170, Invalid=1236, Unknown=0, NotChecked=0, Total=1406 [2021-07-09 16:58:41,379 INFO L87 Difference]: Start difference. First operand 40820 states and 119901 transitions. Second operand has 38 states, 38 states have (on average 19.394736842105264) internal successors, (737), 38 states have internal predecessors, (737), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:58:41,997 WARN L205 SmtUtils]: Spent 147.00 ms on a formula simplification. DAG size of input: 39 DAG size of output: 37 [2021-07-09 16:58:42,559 WARN L205 SmtUtils]: Spent 345.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 46 [2021-07-09 16:58:42,768 WARN L205 SmtUtils]: Spent 148.00 ms on a formula simplification. DAG size of input: 45 DAG size of output: 43 [2021-07-09 16:58:43,377 WARN L205 SmtUtils]: Spent 150.00 ms on a formula simplification. DAG size of input: 44 DAG size of output: 42 [2021-07-09 16:58:43,667 WARN L205 SmtUtils]: Spent 244.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 50 [2021-07-09 16:58:43,896 WARN L205 SmtUtils]: Spent 160.00 ms on a formula simplification. DAG size of input: 49 DAG size of output: 47 [2021-07-09 16:58:45,412 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 16:58:45,412 INFO L93 Difference]: Finished difference Result 53550 states and 148710 transitions. [2021-07-09 16:58:45,413 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2021-07-09 16:58:45,413 INFO L78 Accepts]: Start accepts. Automaton has has 38 states, 38 states have (on average 19.394736842105264) internal successors, (737), 38 states have internal predecessors, (737), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 389 [2021-07-09 16:58:45,413 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 16:58:45,523 INFO L225 Difference]: With dead ends: 53550 [2021-07-09 16:58:45,523 INFO L226 Difference]: Without dead ends: 53550 [2021-07-09 16:58:45,524 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 452 GetRequests, 373 SyntacticMatches, 6 SemanticMatches, 73 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1621 ImplicationChecksByTransitivity, 3687.8ms TimeCoverageRelationStatistics Valid=600, Invalid=4950, Unknown=0, NotChecked=0, Total=5550 [2021-07-09 16:58:45,648 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 53550 states. [2021-07-09 16:58:46,323 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 53550 to 42446. [2021-07-09 16:58:46,376 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 42446 states, 42444 states have (on average 2.9421590801997928) internal successors, (124877), 42445 states have internal predecessors, (124877), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:58:46,472 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42446 states to 42446 states and 124877 transitions. [2021-07-09 16:58:46,472 INFO L78 Accepts]: Start accepts. Automaton has 42446 states and 124877 transitions. Word has length 389 [2021-07-09 16:58:46,473 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 16:58:46,473 INFO L482 AbstractCegarLoop]: Abstraction has 42446 states and 124877 transitions. [2021-07-09 16:58:46,473 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 38 states, 38 states have (on average 19.394736842105264) internal successors, (737), 38 states have internal predecessors, (737), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:58:46,473 INFO L276 IsEmpty]: Start isEmpty. Operand 42446 states and 124877 transitions. [2021-07-09 16:58:46,537 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 390 [2021-07-09 16:58:46,538 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 16:58:46,538 INFO L508 BasicCegarLoop]: trace histogram [9, 9, 9, 8, 8, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-09 16:58:46,757 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 37 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable62 [2021-07-09 16:58:46,757 INFO L430 AbstractCegarLoop]: === Iteration 46 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-09 16:58:46,758 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 16:58:46,758 INFO L82 PathProgramCache]: Analyzing trace with hash 1687916657, now seen corresponding path program 37 times [2021-07-09 16:58:46,758 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 16:58:46,758 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [162606075] [2021-07-09 16:58:46,758 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 16:58:46,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 16:58:47,805 INFO L134 CoverageAnalysis]: Checked inductivity of 716 backedges. 12 proven. 686 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2021-07-09 16:58:47,805 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 16:58:47,805 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [162606075] [2021-07-09 16:58:47,806 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [162606075] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-09 16:58:47,806 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1743054126] [2021-07-09 16:58:47,806 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 38 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 38 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-09 16:58:47,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 16:58:47,981 INFO L263 TraceCheckSpWp]: Trace formula consists of 727 conjuncts, 45 conjunts are in the unsatisfiable core [2021-07-09 16:58:47,983 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-09 16:58:47,994 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2021-07-09 16:58:47,994 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 16:58:47,995 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 16:58:47,996 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-07-09 16:58:47,996 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:6, output treesize:5 [2021-07-09 16:58:48,011 INFO L354 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2021-07-09 16:58:48,011 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 17 treesize of output 21 [2021-07-09 16:58:48,012 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 16:58:48,016 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 16:58:48,016 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-07-09 16:58:48,016 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:17, output treesize:15 [2021-07-09 16:58:48,060 INFO L354 Elim1Store]: treesize reduction 36, result has 34.5 percent of original size [2021-07-09 16:58:48,060 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 22 treesize of output 33 [2021-07-09 16:58:48,062 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 16:58:48,069 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 16:58:48,070 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2021-07-09 16:58:48,070 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:26, output treesize:28 [2021-07-09 16:58:48,296 WARN L205 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 20 [2021-07-09 16:58:48,444 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2021-07-09 16:58:48,445 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 16:58:48,456 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 16:58:48,458 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2021-07-09 16:58:48,458 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:41, output treesize:37 [2021-07-09 16:58:48,656 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 20 [2021-07-09 16:58:48,657 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 16:58:48,669 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 16:58:48,670 INFO L550 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2021-07-09 16:58:48,670 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:48, output treesize:37 [2021-07-09 16:58:48,747 INFO L354 Elim1Store]: treesize reduction 54, result has 34.1 percent of original size [2021-07-09 16:58:48,748 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 27 treesize of output 45 [2021-07-09 16:58:48,749 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 16:58:48,764 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 16:58:48,767 INFO L550 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-1 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2021-07-09 16:58:48,767 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:48, output treesize:54 [2021-07-09 16:58:49,450 INFO L354 Elim1Store]: treesize reduction 72, result has 33.9 percent of original size [2021-07-09 16:58:49,450 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 6 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 8 case distinctions, treesize of input 32 treesize of output 57 [2021-07-09 16:58:49,452 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 16:58:49,476 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 16:58:49,479 INFO L550 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-1 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2021-07-09 16:58:49,479 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:65, output treesize:75 [2021-07-09 16:58:49,595 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 7 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 13 [2021-07-09 16:58:49,596 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 16:58:49,622 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 16:58:49,626 INFO L550 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2021-07-09 16:58:49,626 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 4 variables, input treesize:90, output treesize:75 [2021-07-09 16:58:49,664 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 10 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 41 [2021-07-09 16:58:49,666 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 16:58:49,706 INFO L628 ElimStorePlain]: treesize reduction 16, result has 78.7 percent of original size [2021-07-09 16:58:49,710 INFO L550 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-1 vars, End of recursive call: 3 dim-0 vars, and 1 xjuncts. [2021-07-09 16:58:49,710 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 4 variables, input treesize:81, output treesize:59 [2021-07-09 16:58:50,142 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 5 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 20 [2021-07-09 16:58:50,143 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 16:58:50,164 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 16:58:50,169 INFO L550 ElimStorePlain]: Start of recursive call 1: 6 dim-0 vars, 1 dim-2 vars, End of recursive call: 4 dim-0 vars, and 1 xjuncts. [2021-07-09 16:58:50,169 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 7 variables, input treesize:70, output treesize:59 [2021-07-09 16:58:50,774 WARN L313 ript$VariableManager]: TermVariabe |thread_usbThread1of1ForFork0_ieee80211_deregister_hw_~#status~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:58:50,820 INFO L354 Elim1Store]: treesize reduction 40, result has 45.2 percent of original size [2021-07-09 16:58:50,821 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 6 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 9 case distinctions, treesize of input 31 treesize of output 51 [2021-07-09 16:58:50,823 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 16:58:50,846 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 16:58:50,847 INFO L550 ElimStorePlain]: Start of recursive call 1: 4 dim-0 vars, 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-07-09 16:58:50,847 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 5 variables, input treesize:64, output treesize:14 [2021-07-09 16:58:50,887 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 13 [2021-07-09 16:58:50,888 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 16:58:50,892 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 16:58:50,892 INFO L550 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-07-09 16:58:50,892 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:29, output treesize:9 [2021-07-09 16:58:50,982 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 9 [2021-07-09 16:58:50,983 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 16:58:50,985 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 16:58:50,985 INFO L550 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-07-09 16:58:50,985 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:17, output treesize:5 [2021-07-09 16:58:51,309 INFO L134 CoverageAnalysis]: Checked inductivity of 716 backedges. 17 proven. 687 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2021-07-09 16:58:51,309 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1743054126] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-09 16:58:51,309 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-07-09 16:58:51,310 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [19, 23] total 39 [2021-07-09 16:58:51,310 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [338839600] [2021-07-09 16:58:51,310 INFO L462 AbstractCegarLoop]: Interpolant automaton has 39 states [2021-07-09 16:58:51,310 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 16:58:51,310 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 39 interpolants. [2021-07-09 16:58:51,310 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=176, Invalid=1306, Unknown=0, NotChecked=0, Total=1482 [2021-07-09 16:58:51,311 INFO L87 Difference]: Start difference. First operand 42446 states and 124877 transitions. Second operand has 39 states, 39 states have (on average 18.76923076923077) internal successors, (732), 39 states have internal predecessors, (732), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:58:52,187 WARN L205 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 46 [2021-07-09 16:58:52,976 WARN L205 SmtUtils]: Spent 139.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 50 [2021-07-09 16:58:54,201 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 16:58:54,201 INFO L93 Difference]: Finished difference Result 49144 states and 139642 transitions. [2021-07-09 16:58:54,201 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2021-07-09 16:58:54,202 INFO L78 Accepts]: Start accepts. Automaton has has 39 states, 39 states have (on average 18.76923076923077) internal successors, (732), 39 states have internal predecessors, (732), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 389 [2021-07-09 16:58:54,202 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 16:58:54,295 INFO L225 Difference]: With dead ends: 49144 [2021-07-09 16:58:54,295 INFO L226 Difference]: Without dead ends: 49144 [2021-07-09 16:58:54,296 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 445 GetRequests, 375 SyntacticMatches, 4 SemanticMatches, 66 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1149 ImplicationChecksByTransitivity, 2581.8ms TimeCoverageRelationStatistics Valid=508, Invalid=4048, Unknown=0, NotChecked=0, Total=4556 [2021-07-09 16:58:54,405 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 49144 states. [2021-07-09 16:58:55,012 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 49144 to 43226. [2021-07-09 16:58:55,066 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 43226 states, 43224 states have (on average 2.945007403294466) internal successors, (127295), 43225 states have internal predecessors, (127295), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:58:55,158 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43226 states to 43226 states and 127295 transitions. [2021-07-09 16:58:55,158 INFO L78 Accepts]: Start accepts. Automaton has 43226 states and 127295 transitions. Word has length 389 [2021-07-09 16:58:55,159 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 16:58:55,159 INFO L482 AbstractCegarLoop]: Abstraction has 43226 states and 127295 transitions. [2021-07-09 16:58:55,159 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 39 states, 39 states have (on average 18.76923076923077) internal successors, (732), 39 states have internal predecessors, (732), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:58:55,159 INFO L276 IsEmpty]: Start isEmpty. Operand 43226 states and 127295 transitions. [2021-07-09 16:58:55,222 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 390 [2021-07-09 16:58:55,222 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 16:58:55,222 INFO L508 BasicCegarLoop]: trace histogram [9, 9, 9, 8, 8, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-09 16:58:55,436 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 38 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable64 [2021-07-09 16:58:55,437 INFO L430 AbstractCegarLoop]: === Iteration 47 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-09 16:58:55,437 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 16:58:55,437 INFO L82 PathProgramCache]: Analyzing trace with hash -1170463427, now seen corresponding path program 38 times [2021-07-09 16:58:55,437 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 16:58:55,437 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [261877824] [2021-07-09 16:58:55,437 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 16:58:55,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 16:58:56,543 WARN L205 SmtUtils]: Spent 184.00 ms on a formula simplification. DAG size of input: 41 DAG size of output: 18 [2021-07-09 16:58:56,602 INFO L134 CoverageAnalysis]: Checked inductivity of 716 backedges. 12 proven. 686 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2021-07-09 16:58:56,602 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 16:58:56,602 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [261877824] [2021-07-09 16:58:56,603 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [261877824] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-09 16:58:56,603 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [311689201] [2021-07-09 16:58:56,603 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 39 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 39 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-09 16:58:56,782 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-07-09 16:58:56,782 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-07-09 16:58:56,784 INFO L263 TraceCheckSpWp]: Trace formula consists of 727 conjuncts, 53 conjunts are in the unsatisfiable core [2021-07-09 16:58:56,787 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-09 16:58:56,798 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2021-07-09 16:58:56,799 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 16:58:56,800 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 16:58:56,801 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-07-09 16:58:56,801 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:6, output treesize:5 [2021-07-09 16:58:56,816 INFO L354 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2021-07-09 16:58:56,816 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 17 treesize of output 21 [2021-07-09 16:58:56,818 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 16:58:56,822 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 16:58:56,822 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-07-09 16:58:56,822 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:17, output treesize:15 [2021-07-09 16:58:56,872 INFO L354 Elim1Store]: treesize reduction 36, result has 34.5 percent of original size [2021-07-09 16:58:56,872 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 22 treesize of output 33 [2021-07-09 16:58:56,873 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 16:58:56,881 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 16:58:56,882 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2021-07-09 16:58:56,882 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:26, output treesize:28 [2021-07-09 16:58:57,136 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2021-07-09 16:58:57,137 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 16:58:57,148 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 16:58:57,149 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2021-07-09 16:58:57,149 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:41, output treesize:37 [2021-07-09 16:58:57,355 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 20 [2021-07-09 16:58:57,356 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 16:58:57,368 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 16:58:57,369 INFO L550 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2021-07-09 16:58:57,369 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:48, output treesize:37 [2021-07-09 16:58:57,449 INFO L354 Elim1Store]: treesize reduction 54, result has 34.1 percent of original size [2021-07-09 16:58:57,449 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 27 treesize of output 45 [2021-07-09 16:58:57,451 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 16:58:57,467 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 16:58:57,470 INFO L550 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-1 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2021-07-09 16:58:57,470 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:48, output treesize:54 [2021-07-09 16:58:58,165 INFO L354 Elim1Store]: treesize reduction 72, result has 33.9 percent of original size [2021-07-09 16:58:58,165 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 6 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 8 case distinctions, treesize of input 32 treesize of output 57 [2021-07-09 16:58:58,167 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 16:58:58,191 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 16:58:58,195 INFO L550 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-1 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2021-07-09 16:58:58,195 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:65, output treesize:75 [2021-07-09 16:58:58,313 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 7 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 13 [2021-07-09 16:58:58,314 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 16:58:58,340 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 16:58:58,344 INFO L550 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2021-07-09 16:58:58,344 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 4 variables, input treesize:90, output treesize:75 [2021-07-09 16:58:58,382 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 10 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 41 [2021-07-09 16:58:58,384 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 16:58:58,424 INFO L628 ElimStorePlain]: treesize reduction 16, result has 78.7 percent of original size [2021-07-09 16:58:58,428 INFO L550 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-1 vars, End of recursive call: 3 dim-0 vars, and 1 xjuncts. [2021-07-09 16:58:58,428 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 4 variables, input treesize:81, output treesize:59 [2021-07-09 16:58:58,864 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 5 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 20 [2021-07-09 16:58:58,865 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 16:58:58,885 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 16:58:58,889 INFO L550 ElimStorePlain]: Start of recursive call 1: 4 dim-0 vars, 1 dim-2 vars, End of recursive call: 3 dim-0 vars, and 1 xjuncts. [2021-07-09 16:58:58,889 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 5 variables, input treesize:70, output treesize:59 [2021-07-09 16:58:59,318 WARN L313 ript$VariableManager]: TermVariabe |thread_usbThread1of1ForFork0_ieee80211_deregister_hw_~#status~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:58:59,390 INFO L354 Elim1Store]: treesize reduction 122, result has 27.4 percent of original size [2021-07-09 16:58:59,390 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 6 select indices, 6 select index equivalence classes, 6 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 14 case distinctions, treesize of input 37 treesize of output 69 [2021-07-09 16:58:59,392 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 16:58:59,421 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 16:58:59,425 INFO L550 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-1 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2021-07-09 16:58:59,426 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 4 variables, input treesize:70, output treesize:75 [2021-07-09 16:58:59,540 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 7 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 13 [2021-07-09 16:58:59,541 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 16:58:59,568 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 16:58:59,571 INFO L550 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2021-07-09 16:58:59,571 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 4 variables, input treesize:90, output treesize:75 [2021-07-09 16:58:59,608 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 10 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 41 [2021-07-09 16:58:59,610 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 16:58:59,649 INFO L628 ElimStorePlain]: treesize reduction 16, result has 78.7 percent of original size [2021-07-09 16:58:59,653 INFO L550 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-1 vars, End of recursive call: 3 dim-0 vars, and 1 xjuncts. [2021-07-09 16:58:59,653 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 4 variables, input treesize:81, output treesize:59 [2021-07-09 16:59:00,002 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 5 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 20 [2021-07-09 16:59:00,003 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 16:59:00,023 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 16:59:00,028 INFO L550 ElimStorePlain]: Start of recursive call 1: 6 dim-0 vars, 1 dim-2 vars, End of recursive call: 4 dim-0 vars, and 1 xjuncts. [2021-07-09 16:59:00,028 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 7 variables, input treesize:70, output treesize:59 [2021-07-09 16:59:00,615 WARN L313 ript$VariableManager]: TermVariabe |thread_usbThread1of1ForFork0_ieee80211_deregister_hw_~#status~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:59:00,661 INFO L354 Elim1Store]: treesize reduction 40, result has 45.2 percent of original size [2021-07-09 16:59:00,662 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 6 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 9 case distinctions, treesize of input 31 treesize of output 51 [2021-07-09 16:59:00,665 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 16:59:00,687 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 16:59:00,688 INFO L550 ElimStorePlain]: Start of recursive call 1: 4 dim-0 vars, 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-07-09 16:59:00,688 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 5 variables, input treesize:64, output treesize:14 [2021-07-09 16:59:00,730 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 13 [2021-07-09 16:59:00,731 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 16:59:00,735 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 16:59:00,735 INFO L550 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-07-09 16:59:00,735 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:29, output treesize:9 [2021-07-09 16:59:00,750 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 14 [2021-07-09 16:59:00,751 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 16:59:00,754 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 16:59:00,754 INFO L550 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-07-09 16:59:00,754 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:26, output treesize:11 [2021-07-09 16:59:01,063 INFO L134 CoverageAnalysis]: Checked inductivity of 716 backedges. 17 proven. 687 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2021-07-09 16:59:01,063 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [311689201] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-09 16:59:01,063 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-07-09 16:59:01,063 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [20, 24] total 40 [2021-07-09 16:59:01,063 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1901496033] [2021-07-09 16:59:01,064 INFO L462 AbstractCegarLoop]: Interpolant automaton has 40 states [2021-07-09 16:59:01,064 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 16:59:01,064 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 40 interpolants. [2021-07-09 16:59:01,064 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=186, Invalid=1374, Unknown=0, NotChecked=0, Total=1560 [2021-07-09 16:59:01,065 INFO L87 Difference]: Start difference. First operand 43226 states and 127295 transitions. Second operand has 40 states, 40 states have (on average 18.3) internal successors, (732), 40 states have internal predecessors, (732), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:59:02,079 WARN L205 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 46 [2021-07-09 16:59:02,885 WARN L205 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 50 [2021-07-09 16:59:05,220 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 16:59:05,220 INFO L93 Difference]: Finished difference Result 53550 states and 149523 transitions. [2021-07-09 16:59:05,220 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2021-07-09 16:59:05,221 INFO L78 Accepts]: Start accepts. Automaton has has 40 states, 40 states have (on average 18.3) internal successors, (732), 40 states have internal predecessors, (732), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 389 [2021-07-09 16:59:05,221 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 16:59:05,327 INFO L225 Difference]: With dead ends: 53550 [2021-07-09 16:59:05,328 INFO L226 Difference]: Without dead ends: 53550 [2021-07-09 16:59:05,328 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 455 GetRequests, 374 SyntacticMatches, 7 SemanticMatches, 74 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1619 ImplicationChecksByTransitivity, 3283.6ms TimeCoverageRelationStatistics Valid=620, Invalid=5080, Unknown=0, NotChecked=0, Total=5700 [2021-07-09 16:59:05,443 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 53550 states. [2021-07-09 16:59:06,242 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 53550 to 43259. [2021-07-09 16:59:06,290 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 43259 states, 43257 states have (on average 2.9443789444482973) internal successors, (127365), 43258 states have internal predecessors, (127365), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:59:06,377 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43259 states to 43259 states and 127365 transitions. [2021-07-09 16:59:06,377 INFO L78 Accepts]: Start accepts. Automaton has 43259 states and 127365 transitions. Word has length 389 [2021-07-09 16:59:06,377 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 16:59:06,377 INFO L482 AbstractCegarLoop]: Abstraction has 43259 states and 127365 transitions. [2021-07-09 16:59:06,377 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 40 states, 40 states have (on average 18.3) internal successors, (732), 40 states have internal predecessors, (732), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:59:06,378 INFO L276 IsEmpty]: Start isEmpty. Operand 43259 states and 127365 transitions. [2021-07-09 16:59:06,437 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 390 [2021-07-09 16:59:06,437 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 16:59:06,437 INFO L508 BasicCegarLoop]: trace histogram [9, 9, 9, 8, 8, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-09 16:59:06,654 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable66,39 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-09 16:59:06,655 INFO L430 AbstractCegarLoop]: === Iteration 48 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-09 16:59:06,655 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 16:59:06,655 INFO L82 PathProgramCache]: Analyzing trace with hash 1916721595, now seen corresponding path program 39 times [2021-07-09 16:59:06,655 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 16:59:06,655 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [587302325] [2021-07-09 16:59:06,655 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 16:59:06,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 16:59:07,682 INFO L134 CoverageAnalysis]: Checked inductivity of 716 backedges. 12 proven. 692 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2021-07-09 16:59:07,682 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 16:59:07,682 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [587302325] [2021-07-09 16:59:07,682 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [587302325] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-09 16:59:07,682 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [986839642] [2021-07-09 16:59:07,682 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 40 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 40 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-09 16:59:08,180 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 8 check-sat command(s) [2021-07-09 16:59:08,181 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-07-09 16:59:08,184 INFO L263 TraceCheckSpWp]: Trace formula consists of 727 conjuncts, 53 conjunts are in the unsatisfiable core [2021-07-09 16:59:08,187 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-09 16:59:08,198 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2021-07-09 16:59:08,199 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 16:59:08,200 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 16:59:08,201 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-07-09 16:59:08,201 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:6, output treesize:5 [2021-07-09 16:59:08,217 INFO L354 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2021-07-09 16:59:08,217 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 17 treesize of output 21 [2021-07-09 16:59:08,219 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 16:59:08,223 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 16:59:08,223 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-07-09 16:59:08,223 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:17, output treesize:15 [2021-07-09 16:59:08,276 INFO L354 Elim1Store]: treesize reduction 36, result has 34.5 percent of original size [2021-07-09 16:59:08,276 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 22 treesize of output 33 [2021-07-09 16:59:08,278 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 16:59:08,286 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 16:59:08,287 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2021-07-09 16:59:08,287 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:26, output treesize:28 [2021-07-09 16:59:08,642 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2021-07-09 16:59:08,643 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 16:59:08,653 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 16:59:08,655 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2021-07-09 16:59:08,655 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:41, output treesize:37 [2021-07-09 16:59:08,862 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 20 [2021-07-09 16:59:08,863 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 16:59:08,874 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 16:59:08,876 INFO L550 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2021-07-09 16:59:08,876 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:48, output treesize:37 [2021-07-09 16:59:08,955 INFO L354 Elim1Store]: treesize reduction 54, result has 34.1 percent of original size [2021-07-09 16:59:08,956 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 27 treesize of output 45 [2021-07-09 16:59:08,957 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 16:59:08,973 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 16:59:08,976 INFO L550 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-1 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2021-07-09 16:59:08,976 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:48, output treesize:54 [2021-07-09 16:59:09,460 INFO L354 Elim1Store]: treesize reduction 72, result has 33.9 percent of original size [2021-07-09 16:59:09,460 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 6 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 8 case distinctions, treesize of input 32 treesize of output 57 [2021-07-09 16:59:09,461 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 16:59:09,485 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 16:59:09,489 INFO L550 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-1 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2021-07-09 16:59:09,489 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:65, output treesize:75 [2021-07-09 16:59:09,601 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 7 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 13 [2021-07-09 16:59:09,602 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 16:59:09,628 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 16:59:09,632 INFO L550 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2021-07-09 16:59:09,632 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 4 variables, input treesize:90, output treesize:75 [2021-07-09 16:59:09,669 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 10 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 41 [2021-07-09 16:59:09,670 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 16:59:09,709 INFO L628 ElimStorePlain]: treesize reduction 16, result has 78.7 percent of original size [2021-07-09 16:59:09,712 INFO L550 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-1 vars, End of recursive call: 3 dim-0 vars, and 1 xjuncts. [2021-07-09 16:59:09,713 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 4 variables, input treesize:81, output treesize:59 [2021-07-09 16:59:10,128 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 5 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 20 [2021-07-09 16:59:10,130 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 16:59:10,150 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 16:59:10,154 INFO L550 ElimStorePlain]: Start of recursive call 1: 4 dim-0 vars, 1 dim-2 vars, End of recursive call: 3 dim-0 vars, and 1 xjuncts. [2021-07-09 16:59:10,154 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 5 variables, input treesize:70, output treesize:59 [2021-07-09 16:59:10,578 WARN L313 ript$VariableManager]: TermVariabe |thread_usbThread1of1ForFork0_ieee80211_deregister_hw_~#status~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:59:10,647 INFO L354 Elim1Store]: treesize reduction 122, result has 27.4 percent of original size [2021-07-09 16:59:10,648 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 6 select indices, 6 select index equivalence classes, 6 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 14 case distinctions, treesize of input 37 treesize of output 69 [2021-07-09 16:59:10,650 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 16:59:10,678 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 16:59:10,682 INFO L550 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-1 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2021-07-09 16:59:10,682 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 4 variables, input treesize:70, output treesize:75 [2021-07-09 16:59:10,794 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 7 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 13 [2021-07-09 16:59:10,795 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 16:59:10,821 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 16:59:10,825 INFO L550 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2021-07-09 16:59:10,825 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 4 variables, input treesize:90, output treesize:75 [2021-07-09 16:59:10,861 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 10 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 41 [2021-07-09 16:59:10,863 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 16:59:10,902 INFO L628 ElimStorePlain]: treesize reduction 16, result has 78.7 percent of original size [2021-07-09 16:59:10,906 INFO L550 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-1 vars, End of recursive call: 3 dim-0 vars, and 1 xjuncts. [2021-07-09 16:59:10,906 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 4 variables, input treesize:81, output treesize:59 [2021-07-09 16:59:11,262 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 5 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 20 [2021-07-09 16:59:11,263 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 16:59:11,283 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 16:59:11,289 INFO L550 ElimStorePlain]: Start of recursive call 1: 6 dim-0 vars, 1 dim-2 vars, End of recursive call: 4 dim-0 vars, and 1 xjuncts. [2021-07-09 16:59:11,289 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 7 variables, input treesize:70, output treesize:59 [2021-07-09 16:59:11,869 WARN L313 ript$VariableManager]: TermVariabe |thread_usbThread1of1ForFork0_ieee80211_deregister_hw_~#status~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:59:11,914 INFO L354 Elim1Store]: treesize reduction 40, result has 45.2 percent of original size [2021-07-09 16:59:11,914 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 6 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 9 case distinctions, treesize of input 31 treesize of output 51 [2021-07-09 16:59:11,917 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 16:59:11,945 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 16:59:11,946 INFO L550 ElimStorePlain]: Start of recursive call 1: 4 dim-0 vars, 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-07-09 16:59:11,946 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 5 variables, input treesize:64, output treesize:14 [2021-07-09 16:59:11,986 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 13 [2021-07-09 16:59:11,987 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 16:59:11,990 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 16:59:11,991 INFO L550 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-07-09 16:59:11,991 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:29, output treesize:9 [2021-07-09 16:59:12,083 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 9 [2021-07-09 16:59:12,084 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 16:59:12,085 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 16:59:12,085 INFO L550 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-07-09 16:59:12,086 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:17, output treesize:5 [2021-07-09 16:59:12,414 INFO L134 CoverageAnalysis]: Checked inductivity of 716 backedges. 18 proven. 687 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2021-07-09 16:59:12,414 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [986839642] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-09 16:59:12,414 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-07-09 16:59:12,415 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [21, 24] total 42 [2021-07-09 16:59:12,415 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1395529314] [2021-07-09 16:59:12,415 INFO L462 AbstractCegarLoop]: Interpolant automaton has 42 states [2021-07-09 16:59:12,415 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 16:59:12,415 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 42 interpolants. [2021-07-09 16:59:12,416 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=180, Invalid=1542, Unknown=0, NotChecked=0, Total=1722 [2021-07-09 16:59:12,416 INFO L87 Difference]: Start difference. First operand 43259 states and 127365 transitions. Second operand has 42 states, 42 states have (on average 17.571428571428573) internal successors, (738), 42 states have internal predecessors, (738), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:59:15,355 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 16:59:15,355 INFO L93 Difference]: Finished difference Result 49872 states and 141851 transitions. [2021-07-09 16:59:15,355 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2021-07-09 16:59:15,355 INFO L78 Accepts]: Start accepts. Automaton has has 42 states, 42 states have (on average 17.571428571428573) internal successors, (738), 42 states have internal predecessors, (738), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 389 [2021-07-09 16:59:15,356 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 16:59:15,452 INFO L225 Difference]: With dead ends: 49872 [2021-07-09 16:59:15,452 INFO L226 Difference]: Without dead ends: 49872 [2021-07-09 16:59:15,453 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 444 GetRequests, 372 SyntacticMatches, 7 SemanticMatches, 65 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1092 ImplicationChecksByTransitivity, 2492.6ms TimeCoverageRelationStatistics Valid=468, Invalid=3954, Unknown=0, NotChecked=0, Total=4422 [2021-07-09 16:59:15,560 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 49872 states. [2021-07-09 16:59:16,303 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 49872 to 44039. [2021-07-09 16:59:16,354 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 44039 states, 44037 states have (on average 2.947135363444376) internal successors, (129783), 44038 states have internal predecessors, (129783), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:59:16,448 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44039 states to 44039 states and 129783 transitions. [2021-07-09 16:59:16,448 INFO L78 Accepts]: Start accepts. Automaton has 44039 states and 129783 transitions. Word has length 389 [2021-07-09 16:59:16,449 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 16:59:16,449 INFO L482 AbstractCegarLoop]: Abstraction has 44039 states and 129783 transitions. [2021-07-09 16:59:16,449 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 42 states, 42 states have (on average 17.571428571428573) internal successors, (738), 42 states have internal predecessors, (738), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:59:16,449 INFO L276 IsEmpty]: Start isEmpty. Operand 44039 states and 129783 transitions. [2021-07-09 16:59:16,513 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 390 [2021-07-09 16:59:16,514 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 16:59:16,514 INFO L508 BasicCegarLoop]: trace histogram [9, 9, 9, 8, 8, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-09 16:59:16,729 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 40 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable68 [2021-07-09 16:59:16,729 INFO L430 AbstractCegarLoop]: === Iteration 49 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-09 16:59:16,729 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 16:59:16,729 INFO L82 PathProgramCache]: Analyzing trace with hash 987978375, now seen corresponding path program 40 times [2021-07-09 16:59:16,729 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 16:59:16,730 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1401536425] [2021-07-09 16:59:16,730 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 16:59:16,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 16:59:17,749 INFO L134 CoverageAnalysis]: Checked inductivity of 716 backedges. 12 proven. 692 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2021-07-09 16:59:17,749 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 16:59:17,749 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1401536425] [2021-07-09 16:59:17,749 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1401536425] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-09 16:59:17,750 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2042488963] [2021-07-09 16:59:17,750 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 41 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 41 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-09 16:59:18,193 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-07-09 16:59:18,193 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-07-09 16:59:18,196 INFO L263 TraceCheckSpWp]: Trace formula consists of 727 conjuncts, 53 conjunts are in the unsatisfiable core [2021-07-09 16:59:18,199 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-09 16:59:18,210 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2021-07-09 16:59:18,211 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 16:59:18,212 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 16:59:18,212 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-07-09 16:59:18,212 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:6, output treesize:5 [2021-07-09 16:59:18,229 INFO L354 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2021-07-09 16:59:18,229 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 17 treesize of output 21 [2021-07-09 16:59:18,230 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 16:59:18,234 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 16:59:18,235 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-07-09 16:59:18,235 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:17, output treesize:15 [2021-07-09 16:59:18,289 INFO L354 Elim1Store]: treesize reduction 36, result has 34.5 percent of original size [2021-07-09 16:59:18,290 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 22 treesize of output 33 [2021-07-09 16:59:18,291 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 16:59:18,299 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 16:59:18,301 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2021-07-09 16:59:18,301 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:26, output treesize:28 [2021-07-09 16:59:18,563 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2021-07-09 16:59:18,564 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 16:59:18,574 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 16:59:18,575 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2021-07-09 16:59:18,576 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:41, output treesize:37 [2021-07-09 16:59:18,787 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 20 [2021-07-09 16:59:18,788 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 16:59:18,919 WARN L205 SmtUtils]: Spent 130.00 ms on a formula simplification that was a NOOP. DAG size: 31 [2021-07-09 16:59:18,920 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 16:59:18,921 INFO L550 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2021-07-09 16:59:18,921 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:48, output treesize:37 [2021-07-09 16:59:18,999 INFO L354 Elim1Store]: treesize reduction 54, result has 34.1 percent of original size [2021-07-09 16:59:18,999 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 27 treesize of output 45 [2021-07-09 16:59:19,001 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 16:59:19,016 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 16:59:19,019 INFO L550 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-1 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2021-07-09 16:59:19,019 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:48, output treesize:54 [2021-07-09 16:59:19,504 INFO L354 Elim1Store]: treesize reduction 72, result has 33.9 percent of original size [2021-07-09 16:59:19,504 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 6 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 8 case distinctions, treesize of input 32 treesize of output 57 [2021-07-09 16:59:19,506 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 16:59:19,530 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 16:59:19,534 INFO L550 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-1 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2021-07-09 16:59:19,534 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:65, output treesize:75 [2021-07-09 16:59:19,653 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 7 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 13 [2021-07-09 16:59:19,654 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 16:59:19,680 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 16:59:19,684 INFO L550 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2021-07-09 16:59:19,684 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 4 variables, input treesize:90, output treesize:75 [2021-07-09 16:59:19,722 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 10 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 41 [2021-07-09 16:59:19,724 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 16:59:19,769 INFO L628 ElimStorePlain]: treesize reduction 16, result has 78.7 percent of original size [2021-07-09 16:59:19,773 INFO L550 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-1 vars, End of recursive call: 3 dim-0 vars, and 1 xjuncts. [2021-07-09 16:59:19,773 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 4 variables, input treesize:81, output treesize:59 [2021-07-09 16:59:20,233 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 5 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 20 [2021-07-09 16:59:20,234 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 16:59:20,255 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 16:59:20,260 INFO L550 ElimStorePlain]: Start of recursive call 1: 4 dim-0 vars, 1 dim-2 vars, End of recursive call: 3 dim-0 vars, and 1 xjuncts. [2021-07-09 16:59:20,260 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 5 variables, input treesize:70, output treesize:59 [2021-07-09 16:59:20,918 WARN L313 ript$VariableManager]: TermVariabe |thread_usbThread1of1ForFork0_ieee80211_deregister_hw_~#status~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:59:20,993 INFO L354 Elim1Store]: treesize reduction 122, result has 27.4 percent of original size [2021-07-09 16:59:20,994 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 6 select indices, 6 select index equivalence classes, 6 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 14 case distinctions, treesize of input 37 treesize of output 69 [2021-07-09 16:59:20,996 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 16:59:21,024 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 16:59:21,028 INFO L550 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-1 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2021-07-09 16:59:21,028 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 4 variables, input treesize:70, output treesize:75 [2021-07-09 16:59:21,145 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 7 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 13 [2021-07-09 16:59:21,146 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 16:59:21,173 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 16:59:21,177 INFO L550 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2021-07-09 16:59:21,177 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 4 variables, input treesize:90, output treesize:75 [2021-07-09 16:59:21,214 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 10 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 41 [2021-07-09 16:59:21,215 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 16:59:21,254 INFO L628 ElimStorePlain]: treesize reduction 16, result has 78.7 percent of original size [2021-07-09 16:59:21,258 INFO L550 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-1 vars, End of recursive call: 3 dim-0 vars, and 1 xjuncts. [2021-07-09 16:59:21,258 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 4 variables, input treesize:81, output treesize:59 [2021-07-09 16:59:21,603 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 5 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 20 [2021-07-09 16:59:21,604 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 16:59:21,625 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 16:59:21,629 INFO L550 ElimStorePlain]: Start of recursive call 1: 4 dim-0 vars, 1 dim-2 vars, End of recursive call: 3 dim-0 vars, and 1 xjuncts. [2021-07-09 16:59:21,629 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 5 variables, input treesize:70, output treesize:59 [2021-07-09 16:59:22,061 WARN L313 ript$VariableManager]: TermVariabe |thread_usbThread1of1ForFork0_ieee80211_deregister_hw_~#status~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:59:22,132 INFO L354 Elim1Store]: treesize reduction 122, result has 27.4 percent of original size [2021-07-09 16:59:22,132 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 6 select indices, 6 select index equivalence classes, 6 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 14 case distinctions, treesize of input 37 treesize of output 69 [2021-07-09 16:59:22,134 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 16:59:22,162 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 16:59:22,167 INFO L550 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-1 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2021-07-09 16:59:22,167 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 4 variables, input treesize:70, output treesize:75 [2021-07-09 16:59:22,288 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 7 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 13 [2021-07-09 16:59:22,289 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 16:59:22,315 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 16:59:22,319 INFO L550 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2021-07-09 16:59:22,319 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 4 variables, input treesize:90, output treesize:75 [2021-07-09 16:59:22,356 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 10 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 41 [2021-07-09 16:59:22,358 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 16:59:22,398 INFO L628 ElimStorePlain]: treesize reduction 16, result has 78.7 percent of original size [2021-07-09 16:59:22,402 INFO L550 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-1 vars, End of recursive call: 3 dim-0 vars, and 1 xjuncts. [2021-07-09 16:59:22,402 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 4 variables, input treesize:81, output treesize:59 [2021-07-09 16:59:22,761 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 5 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 20 [2021-07-09 16:59:22,762 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 16:59:22,783 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 16:59:22,789 INFO L550 ElimStorePlain]: Start of recursive call 1: 6 dim-0 vars, 1 dim-2 vars, End of recursive call: 4 dim-0 vars, and 1 xjuncts. [2021-07-09 16:59:22,789 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 7 variables, input treesize:70, output treesize:59 [2021-07-09 16:59:23,387 WARN L313 ript$VariableManager]: TermVariabe |thread_usbThread1of1ForFork0_ieee80211_deregister_hw_~#status~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:59:23,433 INFO L354 Elim1Store]: treesize reduction 40, result has 45.2 percent of original size [2021-07-09 16:59:23,433 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 6 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 9 case distinctions, treesize of input 31 treesize of output 51 [2021-07-09 16:59:23,436 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 16:59:23,457 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 16:59:23,459 INFO L550 ElimStorePlain]: Start of recursive call 1: 4 dim-0 vars, 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-07-09 16:59:23,459 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 5 variables, input treesize:64, output treesize:14 [2021-07-09 16:59:23,502 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 13 [2021-07-09 16:59:23,503 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 16:59:23,506 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 16:59:23,507 INFO L550 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-07-09 16:59:23,507 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:29, output treesize:9 [2021-07-09 16:59:23,542 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 9 [2021-07-09 16:59:23,543 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 16:59:23,545 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 16:59:23,545 INFO L550 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-07-09 16:59:23,545 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:17, output treesize:5 [2021-07-09 16:59:23,720 INFO L134 CoverageAnalysis]: Checked inductivity of 716 backedges. 18 proven. 686 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2021-07-09 16:59:23,720 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2042488963] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-09 16:59:23,720 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-07-09 16:59:23,720 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [22, 23] total 42 [2021-07-09 16:59:23,721 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [122232377] [2021-07-09 16:59:23,721 INFO L462 AbstractCegarLoop]: Interpolant automaton has 42 states [2021-07-09 16:59:23,721 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 16:59:23,721 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 42 interpolants. [2021-07-09 16:59:23,721 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=183, Invalid=1539, Unknown=0, NotChecked=0, Total=1722 [2021-07-09 16:59:23,722 INFO L87 Difference]: Start difference. First operand 44039 states and 129783 transitions. Second operand has 42 states, 42 states have (on average 17.547619047619047) internal successors, (737), 42 states have internal predecessors, (737), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:59:27,650 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 16:59:27,650 INFO L93 Difference]: Finished difference Result 52338 states and 147672 transitions. [2021-07-09 16:59:27,650 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2021-07-09 16:59:27,651 INFO L78 Accepts]: Start accepts. Automaton has has 42 states, 42 states have (on average 17.547619047619047) internal successors, (737), 42 states have internal predecessors, (737), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 389 [2021-07-09 16:59:27,651 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 16:59:27,763 INFO L225 Difference]: With dead ends: 52338 [2021-07-09 16:59:27,763 INFO L226 Difference]: Without dead ends: 52338 [2021-07-09 16:59:27,764 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 453 GetRequests, 376 SyntacticMatches, 8 SemanticMatches, 69 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1188 ImplicationChecksByTransitivity, 3057.7ms TimeCoverageRelationStatistics Valid=542, Invalid=4428, Unknown=0, NotChecked=0, Total=4970 [2021-07-09 16:59:27,887 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52338 states. [2021-07-09 16:59:28,436 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52338 to 44071. [2021-07-09 16:59:28,491 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 44071 states, 44069 states have (on average 2.9465383829903105) internal successors, (129851), 44070 states have internal predecessors, (129851), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:59:28,969 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44071 states to 44071 states and 129851 transitions. [2021-07-09 16:59:28,970 INFO L78 Accepts]: Start accepts. Automaton has 44071 states and 129851 transitions. Word has length 389 [2021-07-09 16:59:28,970 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 16:59:28,970 INFO L482 AbstractCegarLoop]: Abstraction has 44071 states and 129851 transitions. [2021-07-09 16:59:28,970 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 42 states, 42 states have (on average 17.547619047619047) internal successors, (737), 42 states have internal predecessors, (737), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:59:28,970 INFO L276 IsEmpty]: Start isEmpty. Operand 44071 states and 129851 transitions. [2021-07-09 16:59:29,038 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 390 [2021-07-09 16:59:29,038 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 16:59:29,038 INFO L508 BasicCegarLoop]: trace histogram [9, 9, 9, 8, 8, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-09 16:59:29,256 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable70,41 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-09 16:59:29,256 INFO L430 AbstractCegarLoop]: === Iteration 50 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-09 16:59:29,263 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 16:59:29,263 INFO L82 PathProgramCache]: Analyzing trace with hash -1807983355, now seen corresponding path program 41 times [2021-07-09 16:59:29,263 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 16:59:29,263 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1309372304] [2021-07-09 16:59:29,263 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 16:59:29,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 16:59:30,397 INFO L134 CoverageAnalysis]: Checked inductivity of 716 backedges. 12 proven. 692 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2021-07-09 16:59:30,398 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 16:59:30,398 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1309372304] [2021-07-09 16:59:30,398 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1309372304] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-09 16:59:30,398 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [591858342] [2021-07-09 16:59:30,398 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 42 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 42 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-09 16:59:30,686 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 8 check-sat command(s) [2021-07-09 16:59:30,686 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-07-09 16:59:30,689 INFO L263 TraceCheckSpWp]: Trace formula consists of 727 conjuncts, 57 conjunts are in the unsatisfiable core [2021-07-09 16:59:30,692 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-09 16:59:30,704 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2021-07-09 16:59:30,705 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 16:59:30,707 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 16:59:30,707 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-07-09 16:59:30,707 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:6, output treesize:5 [2021-07-09 16:59:30,726 INFO L354 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2021-07-09 16:59:30,726 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 17 treesize of output 21 [2021-07-09 16:59:30,727 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 16:59:30,732 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 16:59:30,732 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-07-09 16:59:30,733 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:17, output treesize:15 [2021-07-09 16:59:30,790 INFO L354 Elim1Store]: treesize reduction 36, result has 34.5 percent of original size [2021-07-09 16:59:30,790 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 22 treesize of output 33 [2021-07-09 16:59:30,792 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 16:59:30,800 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 16:59:30,801 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2021-07-09 16:59:30,801 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:26, output treesize:28 [2021-07-09 16:59:31,067 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2021-07-09 16:59:31,068 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 16:59:31,078 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 16:59:31,079 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2021-07-09 16:59:31,079 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:41, output treesize:37 [2021-07-09 16:59:31,366 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 20 [2021-07-09 16:59:31,367 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 16:59:31,378 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 16:59:31,380 INFO L550 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2021-07-09 16:59:31,380 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:48, output treesize:37 [2021-07-09 16:59:31,457 INFO L354 Elim1Store]: treesize reduction 54, result has 34.1 percent of original size [2021-07-09 16:59:31,458 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 27 treesize of output 45 [2021-07-09 16:59:31,459 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 16:59:31,474 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 16:59:31,478 INFO L550 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-1 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2021-07-09 16:59:31,478 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:48, output treesize:54 [2021-07-09 16:59:32,163 INFO L354 Elim1Store]: treesize reduction 72, result has 33.9 percent of original size [2021-07-09 16:59:32,163 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 6 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 8 case distinctions, treesize of input 32 treesize of output 57 [2021-07-09 16:59:32,165 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 16:59:32,189 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 16:59:32,192 INFO L550 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-1 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2021-07-09 16:59:32,193 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:65, output treesize:75 [2021-07-09 16:59:32,314 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 7 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 13 [2021-07-09 16:59:32,315 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 16:59:32,342 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 16:59:32,345 INFO L550 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2021-07-09 16:59:32,346 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 4 variables, input treesize:90, output treesize:75 [2021-07-09 16:59:32,383 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 10 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 41 [2021-07-09 16:59:32,384 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 16:59:32,424 INFO L628 ElimStorePlain]: treesize reduction 16, result has 78.7 percent of original size [2021-07-09 16:59:32,427 INFO L550 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-1 vars, End of recursive call: 3 dim-0 vars, and 1 xjuncts. [2021-07-09 16:59:32,427 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 4 variables, input treesize:81, output treesize:59 [2021-07-09 16:59:32,861 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 5 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 20 [2021-07-09 16:59:32,862 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 16:59:32,883 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 16:59:32,887 INFO L550 ElimStorePlain]: Start of recursive call 1: 4 dim-0 vars, 1 dim-2 vars, End of recursive call: 3 dim-0 vars, and 1 xjuncts. [2021-07-09 16:59:32,887 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 5 variables, input treesize:70, output treesize:59 [2021-07-09 16:59:33,324 WARN L313 ript$VariableManager]: TermVariabe |thread_usbThread1of1ForFork0_ieee80211_deregister_hw_~#status~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:59:33,396 INFO L354 Elim1Store]: treesize reduction 122, result has 27.4 percent of original size [2021-07-09 16:59:33,396 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 6 select indices, 6 select index equivalence classes, 6 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 14 case distinctions, treesize of input 37 treesize of output 69 [2021-07-09 16:59:33,398 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 16:59:33,427 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 16:59:33,431 INFO L550 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-1 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2021-07-09 16:59:33,432 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 4 variables, input treesize:70, output treesize:75 [2021-07-09 16:59:33,553 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 7 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 13 [2021-07-09 16:59:33,554 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 16:59:33,580 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 16:59:33,584 INFO L550 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2021-07-09 16:59:33,584 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 4 variables, input treesize:90, output treesize:75 [2021-07-09 16:59:33,621 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 10 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 41 [2021-07-09 16:59:33,623 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 16:59:33,662 INFO L628 ElimStorePlain]: treesize reduction 16, result has 78.7 percent of original size [2021-07-09 16:59:33,666 INFO L550 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-1 vars, End of recursive call: 3 dim-0 vars, and 1 xjuncts. [2021-07-09 16:59:33,666 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 4 variables, input treesize:81, output treesize:59 [2021-07-09 16:59:33,999 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 5 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 20 [2021-07-09 16:59:34,000 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 16:59:34,017 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 16:59:34,020 INFO L550 ElimStorePlain]: Start of recursive call 1: 4 dim-0 vars, 1 dim-2 vars, End of recursive call: 3 dim-0 vars, and 1 xjuncts. [2021-07-09 16:59:34,020 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 5 variables, input treesize:70, output treesize:59 [2021-07-09 16:59:34,411 WARN L313 ript$VariableManager]: TermVariabe |thread_usbThread1of1ForFork0_ieee80211_deregister_hw_~#status~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:59:34,481 INFO L354 Elim1Store]: treesize reduction 122, result has 27.4 percent of original size [2021-07-09 16:59:34,481 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 6 select indices, 6 select index equivalence classes, 6 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 14 case distinctions, treesize of input 37 treesize of output 69 [2021-07-09 16:59:34,483 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 16:59:34,512 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 16:59:34,516 INFO L550 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-1 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2021-07-09 16:59:34,516 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 4 variables, input treesize:70, output treesize:75 [2021-07-09 16:59:34,643 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 7 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 13 [2021-07-09 16:59:34,644 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 16:59:34,672 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 16:59:34,675 INFO L550 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2021-07-09 16:59:34,676 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 4 variables, input treesize:90, output treesize:75 [2021-07-09 16:59:34,713 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 10 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 41 [2021-07-09 16:59:34,715 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 16:59:34,754 INFO L628 ElimStorePlain]: treesize reduction 16, result has 78.7 percent of original size [2021-07-09 16:59:34,758 INFO L550 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-1 vars, End of recursive call: 3 dim-0 vars, and 1 xjuncts. [2021-07-09 16:59:34,758 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 4 variables, input treesize:81, output treesize:59 [2021-07-09 16:59:35,125 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 5 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 20 [2021-07-09 16:59:35,126 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 16:59:35,146 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 16:59:35,152 INFO L550 ElimStorePlain]: Start of recursive call 1: 6 dim-0 vars, 1 dim-2 vars, End of recursive call: 4 dim-0 vars, and 1 xjuncts. [2021-07-09 16:59:35,152 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 7 variables, input treesize:70, output treesize:59 [2021-07-09 16:59:35,754 WARN L313 ript$VariableManager]: TermVariabe |thread_usbThread1of1ForFork0_ieee80211_deregister_hw_~#status~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:59:35,803 INFO L354 Elim1Store]: treesize reduction 40, result has 45.2 percent of original size [2021-07-09 16:59:35,804 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 6 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 9 case distinctions, treesize of input 31 treesize of output 51 [2021-07-09 16:59:35,806 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 16:59:35,829 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 16:59:35,830 INFO L550 ElimStorePlain]: Start of recursive call 1: 4 dim-0 vars, 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-07-09 16:59:35,831 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 5 variables, input treesize:64, output treesize:14 [2021-07-09 16:59:35,878 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 13 [2021-07-09 16:59:35,878 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 16:59:35,882 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 16:59:35,883 INFO L550 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-07-09 16:59:35,883 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:29, output treesize:9 [2021-07-09 16:59:35,990 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 9 [2021-07-09 16:59:35,991 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 16:59:35,993 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 16:59:35,993 INFO L550 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-07-09 16:59:35,993 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:17, output treesize:5 [2021-07-09 16:59:36,105 INFO L134 CoverageAnalysis]: Checked inductivity of 716 backedges. 17 proven. 687 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2021-07-09 16:59:36,106 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [591858342] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-09 16:59:36,106 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-07-09 16:59:36,106 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [22, 25] total 44 [2021-07-09 16:59:36,106 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1139582656] [2021-07-09 16:59:36,106 INFO L462 AbstractCegarLoop]: Interpolant automaton has 44 states [2021-07-09 16:59:36,106 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 16:59:36,107 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 44 interpolants. [2021-07-09 16:59:36,107 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=202, Invalid=1690, Unknown=0, NotChecked=0, Total=1892 [2021-07-09 16:59:36,107 INFO L87 Difference]: Start difference. First operand 44071 states and 129851 transitions. Second operand has 44 states, 44 states have (on average 16.75) internal successors, (737), 44 states have internal predecessors, (737), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:59:37,377 WARN L205 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 46 [2021-07-09 16:59:38,338 WARN L205 SmtUtils]: Spent 124.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 50 [2021-07-09 16:59:40,987 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 16:59:40,987 INFO L93 Difference]: Finished difference Result 51322 states and 145741 transitions. [2021-07-09 16:59:40,987 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2021-07-09 16:59:40,988 INFO L78 Accepts]: Start accepts. Automaton has has 44 states, 44 states have (on average 16.75) internal successors, (737), 44 states have internal predecessors, (737), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 389 [2021-07-09 16:59:40,988 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 16:59:41,091 INFO L225 Difference]: With dead ends: 51322 [2021-07-09 16:59:41,091 INFO L226 Difference]: Without dead ends: 51322 [2021-07-09 16:59:41,092 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 455 GetRequests, 374 SyntacticMatches, 8 SemanticMatches, 73 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1290 ImplicationChecksByTransitivity, 3638.1ms TimeCoverageRelationStatistics Valid=598, Invalid=4952, Unknown=0, NotChecked=0, Total=5550 [2021-07-09 16:59:41,366 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 51322 states. [2021-07-09 16:59:41,882 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 51322 to 44074. [2021-07-09 16:59:41,940 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 44074 states, 44072 states have (on average 2.9464739517153746) internal successors, (129857), 44073 states have internal predecessors, (129857), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:59:42,037 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44074 states to 44074 states and 129857 transitions. [2021-07-09 16:59:42,038 INFO L78 Accepts]: Start accepts. Automaton has 44074 states and 129857 transitions. Word has length 389 [2021-07-09 16:59:42,038 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 16:59:42,038 INFO L482 AbstractCegarLoop]: Abstraction has 44074 states and 129857 transitions. [2021-07-09 16:59:42,038 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 44 states, 44 states have (on average 16.75) internal successors, (737), 44 states have internal predecessors, (737), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:59:42,038 INFO L276 IsEmpty]: Start isEmpty. Operand 44074 states and 129857 transitions. [2021-07-09 16:59:42,103 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 390 [2021-07-09 16:59:42,103 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 16:59:42,104 INFO L508 BasicCegarLoop]: trace histogram [9, 9, 9, 8, 8, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-09 16:59:42,321 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable71,42 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-09 16:59:42,321 INFO L430 AbstractCegarLoop]: === Iteration 51 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-09 16:59:42,322 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 16:59:42,322 INFO L82 PathProgramCache]: Analyzing trace with hash -1146919075, now seen corresponding path program 42 times [2021-07-09 16:59:42,322 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 16:59:42,322 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2014655802] [2021-07-09 16:59:42,322 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 16:59:42,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 16:59:43,635 INFO L134 CoverageAnalysis]: Checked inductivity of 716 backedges. 12 proven. 686 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2021-07-09 16:59:43,635 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 16:59:43,635 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2014655802] [2021-07-09 16:59:43,635 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2014655802] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-09 16:59:43,635 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [747856965] [2021-07-09 16:59:43,635 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 43 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 43 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-09 16:59:44,103 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 8 check-sat command(s) [2021-07-09 16:59:44,103 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-07-09 16:59:44,106 INFO L263 TraceCheckSpWp]: Trace formula consists of 727 conjuncts, 60 conjunts are in the unsatisfiable core [2021-07-09 16:59:44,109 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-09 16:59:44,121 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 9 [2021-07-09 16:59:44,122 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 16:59:44,123 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 16:59:44,124 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-07-09 16:59:44,124 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:12, output treesize:5 [2021-07-09 16:59:44,139 INFO L354 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2021-07-09 16:59:44,139 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 17 treesize of output 21 [2021-07-09 16:59:44,140 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 16:59:44,144 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 16:59:44,145 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-07-09 16:59:44,145 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:17, output treesize:15 [2021-07-09 16:59:44,213 INFO L354 Elim1Store]: treesize reduction 36, result has 34.5 percent of original size [2021-07-09 16:59:44,214 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 22 treesize of output 33 [2021-07-09 16:59:44,215 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 16:59:44,223 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 16:59:44,224 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2021-07-09 16:59:44,224 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:26, output treesize:28 [2021-07-09 16:59:44,469 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2021-07-09 16:59:44,470 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 16:59:44,480 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 16:59:44,481 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2021-07-09 16:59:44,481 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:41, output treesize:37 [2021-07-09 16:59:44,682 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 20 [2021-07-09 16:59:44,684 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 16:59:44,694 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 16:59:44,696 INFO L550 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2021-07-09 16:59:44,696 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:48, output treesize:37 [2021-07-09 16:59:44,770 INFO L354 Elim1Store]: treesize reduction 54, result has 34.1 percent of original size [2021-07-09 16:59:44,770 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 27 treesize of output 45 [2021-07-09 16:59:44,771 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 16:59:44,786 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 16:59:44,789 INFO L550 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-1 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2021-07-09 16:59:44,789 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:48, output treesize:54 [2021-07-09 16:59:45,461 INFO L354 Elim1Store]: treesize reduction 72, result has 33.9 percent of original size [2021-07-09 16:59:45,461 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 6 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 8 case distinctions, treesize of input 32 treesize of output 57 [2021-07-09 16:59:45,463 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 16:59:45,485 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 16:59:45,488 INFO L550 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-1 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2021-07-09 16:59:45,488 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:65, output treesize:75 [2021-07-09 16:59:45,603 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 7 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 13 [2021-07-09 16:59:45,604 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 16:59:45,629 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 16:59:45,632 INFO L550 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2021-07-09 16:59:45,633 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 4 variables, input treesize:90, output treesize:75 [2021-07-09 16:59:45,668 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 10 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 41 [2021-07-09 16:59:45,670 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 16:59:45,707 INFO L628 ElimStorePlain]: treesize reduction 16, result has 78.7 percent of original size [2021-07-09 16:59:45,710 INFO L550 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-1 vars, End of recursive call: 3 dim-0 vars, and 1 xjuncts. [2021-07-09 16:59:45,710 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 4 variables, input treesize:81, output treesize:59 [2021-07-09 16:59:46,128 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 5 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 20 [2021-07-09 16:59:46,129 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 16:59:46,148 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 16:59:46,152 INFO L550 ElimStorePlain]: Start of recursive call 1: 4 dim-0 vars, 1 dim-2 vars, End of recursive call: 3 dim-0 vars, and 1 xjuncts. [2021-07-09 16:59:46,152 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 5 variables, input treesize:70, output treesize:59 [2021-07-09 16:59:46,561 WARN L313 ript$VariableManager]: TermVariabe |thread_usbThread1of1ForFork0_ieee80211_deregister_hw_~#status~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:59:46,627 INFO L354 Elim1Store]: treesize reduction 122, result has 27.4 percent of original size [2021-07-09 16:59:46,627 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 6 select indices, 6 select index equivalence classes, 6 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 14 case distinctions, treesize of input 37 treesize of output 69 [2021-07-09 16:59:46,629 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 16:59:46,656 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 16:59:46,660 INFO L550 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-1 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2021-07-09 16:59:46,660 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 4 variables, input treesize:70, output treesize:75 [2021-07-09 16:59:46,772 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 7 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 13 [2021-07-09 16:59:46,773 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 16:59:46,797 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 16:59:46,801 INFO L550 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2021-07-09 16:59:46,801 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 4 variables, input treesize:90, output treesize:75 [2021-07-09 16:59:46,839 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 10 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 41 [2021-07-09 16:59:46,840 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 16:59:46,878 INFO L628 ElimStorePlain]: treesize reduction 16, result has 78.7 percent of original size [2021-07-09 16:59:46,881 INFO L550 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-1 vars, End of recursive call: 3 dim-0 vars, and 1 xjuncts. [2021-07-09 16:59:46,881 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 4 variables, input treesize:81, output treesize:59 [2021-07-09 16:59:47,216 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 5 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 20 [2021-07-09 16:59:47,217 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 16:59:47,235 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 16:59:47,239 INFO L550 ElimStorePlain]: Start of recursive call 1: 4 dim-0 vars, 1 dim-2 vars, End of recursive call: 3 dim-0 vars, and 1 xjuncts. [2021-07-09 16:59:47,239 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 5 variables, input treesize:70, output treesize:59 [2021-07-09 16:59:47,643 WARN L313 ript$VariableManager]: TermVariabe |thread_usbThread1of1ForFork0_ieee80211_deregister_hw_~#status~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:59:47,731 INFO L354 Elim1Store]: treesize reduction 122, result has 27.4 percent of original size [2021-07-09 16:59:47,731 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 6 select indices, 6 select index equivalence classes, 6 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 14 case distinctions, treesize of input 37 treesize of output 69 [2021-07-09 16:59:47,733 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 16:59:47,763 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 16:59:47,767 INFO L550 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-1 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2021-07-09 16:59:47,767 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 4 variables, input treesize:70, output treesize:75 [2021-07-09 16:59:47,883 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 7 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 13 [2021-07-09 16:59:47,884 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 16:59:47,909 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 16:59:47,912 INFO L550 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2021-07-09 16:59:47,912 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 4 variables, input treesize:90, output treesize:75 [2021-07-09 16:59:47,948 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 10 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 41 [2021-07-09 16:59:47,949 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 16:59:47,986 INFO L628 ElimStorePlain]: treesize reduction 16, result has 78.7 percent of original size [2021-07-09 16:59:47,990 INFO L550 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-1 vars, End of recursive call: 3 dim-0 vars, and 1 xjuncts. [2021-07-09 16:59:47,990 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 4 variables, input treesize:81, output treesize:59 [2021-07-09 16:59:48,325 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 5 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 20 [2021-07-09 16:59:48,326 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 16:59:48,348 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 16:59:48,352 INFO L550 ElimStorePlain]: Start of recursive call 1: 4 dim-0 vars, 1 dim-2 vars, End of recursive call: 3 dim-0 vars, and 1 xjuncts. [2021-07-09 16:59:48,352 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 5 variables, input treesize:70, output treesize:59 [2021-07-09 16:59:48,760 WARN L313 ript$VariableManager]: TermVariabe |thread_usbThread1of1ForFork0_ieee80211_deregister_hw_~#status~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:59:48,803 INFO L354 Elim1Store]: treesize reduction 40, result has 45.2 percent of original size [2021-07-09 16:59:48,803 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 6 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 9 case distinctions, treesize of input 31 treesize of output 51 [2021-07-09 16:59:48,806 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 16:59:48,827 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 16:59:48,829 INFO L550 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-07-09 16:59:48,829 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 4 variables, input treesize:64, output treesize:22 [2021-07-09 16:59:48,874 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 13 [2021-07-09 16:59:48,875 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 16:59:48,881 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 16:59:48,881 INFO L550 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-07-09 16:59:48,882 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:37, output treesize:14 [2021-07-09 16:59:49,000 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 20 [2021-07-09 16:59:49,001 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 16:59:49,006 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 16:59:49,007 INFO L550 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2021-07-09 16:59:49,008 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:25, output treesize:21 [2021-07-09 16:59:49,167 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 14 [2021-07-09 16:59:49,168 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 16:59:49,172 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 16:59:49,172 INFO L550 ElimStorePlain]: Start of recursive call 1: 4 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-07-09 16:59:49,172 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 5 variables, input treesize:34, output treesize:5 [2021-07-09 16:59:49,248 INFO L134 CoverageAnalysis]: Checked inductivity of 716 backedges. 17 proven. 687 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2021-07-09 16:59:49,248 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [747856965] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-09 16:59:49,249 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-07-09 16:59:49,249 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [22, 25] total 44 [2021-07-09 16:59:49,249 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [534218531] [2021-07-09 16:59:49,249 INFO L462 AbstractCegarLoop]: Interpolant automaton has 44 states [2021-07-09 16:59:49,249 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 16:59:49,249 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 44 interpolants. [2021-07-09 16:59:49,250 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=205, Invalid=1687, Unknown=0, NotChecked=0, Total=1892 [2021-07-09 16:59:49,250 INFO L87 Difference]: Start difference. First operand 44074 states and 129857 transitions. Second operand has 44 states, 44 states have (on average 16.636363636363637) internal successors, (732), 44 states have internal predecessors, (732), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:59:50,622 WARN L205 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 46 [2021-07-09 16:59:51,614 WARN L205 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 50 [2021-07-09 16:59:54,688 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 16:59:54,688 INFO L93 Difference]: Finished difference Result 50765 states and 144613 transitions. [2021-07-09 16:59:54,688 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 40 states. [2021-07-09 16:59:54,688 INFO L78 Accepts]: Start accepts. Automaton has has 44 states, 44 states have (on average 16.636363636363637) internal successors, (732), 44 states have internal predecessors, (732), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 389 [2021-07-09 16:59:54,689 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 16:59:54,922 INFO L225 Difference]: With dead ends: 50765 [2021-07-09 16:59:54,922 INFO L226 Difference]: Without dead ends: 50765 [2021-07-09 16:59:54,923 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 461 GetRequests, 376 SyntacticMatches, 8 SemanticMatches, 77 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1448 ImplicationChecksByTransitivity, 3815.9ms TimeCoverageRelationStatistics Valid=657, Invalid=5505, Unknown=0, NotChecked=0, Total=6162 [2021-07-09 16:59:55,027 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 50765 states. [2021-07-09 16:59:55,546 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 50765 to 43226. [2021-07-09 16:59:55,602 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 43226 states, 43224 states have (on average 2.945007403294466) internal successors, (127295), 43225 states have internal predecessors, (127295), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:59:55,695 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43226 states to 43226 states and 127295 transitions. [2021-07-09 16:59:55,695 INFO L78 Accepts]: Start accepts. Automaton has 43226 states and 127295 transitions. Word has length 389 [2021-07-09 16:59:55,695 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 16:59:55,695 INFO L482 AbstractCegarLoop]: Abstraction has 43226 states and 127295 transitions. [2021-07-09 16:59:55,696 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 44 states, 44 states have (on average 16.636363636363637) internal successors, (732), 44 states have internal predecessors, (732), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:59:55,696 INFO L276 IsEmpty]: Start isEmpty. Operand 43226 states and 127295 transitions. [2021-07-09 16:59:55,759 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 390 [2021-07-09 16:59:55,759 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 16:59:55,759 INFO L508 BasicCegarLoop]: trace histogram [9, 9, 9, 8, 8, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-09 16:59:55,977 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable73,43 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-09 16:59:55,977 INFO L430 AbstractCegarLoop]: === Iteration 52 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-09 16:59:55,978 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 16:59:55,978 INFO L82 PathProgramCache]: Analyzing trace with hash 1469230177, now seen corresponding path program 43 times [2021-07-09 16:59:55,978 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 16:59:55,978 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [16591623] [2021-07-09 16:59:55,978 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 16:59:56,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 16:59:57,195 WARN L205 SmtUtils]: Spent 162.00 ms on a formula simplification. DAG size of input: 47 DAG size of output: 45 [2021-07-09 16:59:57,249 INFO L134 CoverageAnalysis]: Checked inductivity of 716 backedges. 18 proven. 686 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2021-07-09 16:59:57,250 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 16:59:57,250 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [16591623] [2021-07-09 16:59:57,250 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [16591623] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-09 16:59:57,250 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1330550671] [2021-07-09 16:59:57,250 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 44 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 44 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-09 16:59:57,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 16:59:57,430 INFO L263 TraceCheckSpWp]: Trace formula consists of 727 conjuncts, 44 conjunts are in the unsatisfiable core [2021-07-09 16:59:57,433 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-09 16:59:57,444 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2021-07-09 16:59:57,444 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 16:59:57,445 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 16:59:57,446 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-07-09 16:59:57,446 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:6, output treesize:5 [2021-07-09 16:59:57,461 INFO L354 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2021-07-09 16:59:57,461 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 17 treesize of output 21 [2021-07-09 16:59:57,462 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 16:59:57,466 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 16:59:57,467 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-07-09 16:59:57,467 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:17, output treesize:15 [2021-07-09 16:59:57,515 INFO L354 Elim1Store]: treesize reduction 36, result has 34.5 percent of original size [2021-07-09 16:59:57,515 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 22 treesize of output 33 [2021-07-09 16:59:57,517 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 16:59:57,524 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 16:59:57,525 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2021-07-09 16:59:57,525 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:26, output treesize:28 [2021-07-09 16:59:57,759 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2021-07-09 16:59:57,760 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 16:59:57,769 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 16:59:57,770 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2021-07-09 16:59:57,770 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:41, output treesize:37 [2021-07-09 16:59:57,965 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 20 [2021-07-09 16:59:57,966 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 16:59:57,977 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 16:59:57,978 INFO L550 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2021-07-09 16:59:57,979 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:48, output treesize:37 [2021-07-09 16:59:58,232 INFO L354 Elim1Store]: treesize reduction 54, result has 34.1 percent of original size [2021-07-09 16:59:58,232 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 27 treesize of output 45 [2021-07-09 16:59:58,234 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 16:59:58,248 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 16:59:58,250 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2021-07-09 16:59:58,250 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:48, output treesize:54 [2021-07-09 16:59:58,390 INFO L354 Elim1Store]: treesize reduction 72, result has 33.9 percent of original size [2021-07-09 16:59:58,391 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 6 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 8 case distinctions, treesize of input 32 treesize of output 57 [2021-07-09 16:59:58,393 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 16:59:58,421 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 16:59:58,424 INFO L550 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-1 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2021-07-09 16:59:58,424 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:65, output treesize:75 [2021-07-09 16:59:58,515 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 7 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 13 [2021-07-09 16:59:58,516 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 16:59:58,541 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 16:59:58,544 INFO L550 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2021-07-09 16:59:58,544 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 4 variables, input treesize:90, output treesize:75 [2021-07-09 16:59:58,583 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 10 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 41 [2021-07-09 16:59:58,585 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 16:59:58,623 INFO L628 ElimStorePlain]: treesize reduction 16, result has 78.7 percent of original size [2021-07-09 16:59:58,626 INFO L550 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-1 vars, End of recursive call: 3 dim-0 vars, and 1 xjuncts. [2021-07-09 16:59:58,626 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 4 variables, input treesize:81, output treesize:59 [2021-07-09 16:59:59,109 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 5 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 20 [2021-07-09 16:59:59,110 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 16:59:59,129 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 16:59:59,134 INFO L550 ElimStorePlain]: Start of recursive call 1: 5 dim-0 vars, 1 dim-2 vars, End of recursive call: 5 dim-0 vars, and 1 xjuncts. [2021-07-09 16:59:59,135 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 6 variables, input treesize:75, output treesize:71 [2021-07-09 16:59:59,942 WARN L313 ript$VariableManager]: TermVariabe |thread_usbThread1of1ForFork0_ieee80211_deregister_hw_~#status~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:59:59,991 INFO L354 Elim1Store]: treesize reduction 40, result has 45.2 percent of original size [2021-07-09 16:59:59,991 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 6 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 9 case distinctions, treesize of input 31 treesize of output 51 [2021-07-09 16:59:59,994 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 17:00:00,021 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 17:00:00,024 INFO L550 ElimStorePlain]: Start of recursive call 1: 5 dim-0 vars, 1 dim-1 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2021-07-09 17:00:00,024 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 6 variables, input treesize:80, output treesize:38 [2021-07-09 17:00:00,242 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 65 treesize of output 44 [2021-07-09 17:00:00,244 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 17:00:00,266 INFO L628 ElimStorePlain]: treesize reduction 20, result has 67.7 percent of original size [2021-07-09 17:00:00,269 INFO L550 ElimStorePlain]: Start of recursive call 1: 4 dim-0 vars, 1 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2021-07-09 17:00:00,269 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 5 variables, input treesize:77, output treesize:34 [2021-07-09 17:00:00,352 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 37 treesize of output 21 [2021-07-09 17:00:00,354 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 17:00:00,358 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 17:00:00,359 INFO L550 ElimStorePlain]: Start of recursive call 1: 4 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-07-09 17:00:00,359 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 5 variables, input treesize:41, output treesize:13 [2021-07-09 17:00:00,834 INFO L134 CoverageAnalysis]: Checked inductivity of 716 backedges. 18 proven. 686 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2021-07-09 17:00:00,834 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1330550671] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-09 17:00:00,834 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-07-09 17:00:00,834 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [20, 24] total 41 [2021-07-09 17:00:00,834 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [121446949] [2021-07-09 17:00:00,835 INFO L462 AbstractCegarLoop]: Interpolant automaton has 41 states [2021-07-09 17:00:00,835 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 17:00:00,835 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 41 interpolants. [2021-07-09 17:00:00,835 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=171, Invalid=1469, Unknown=0, NotChecked=0, Total=1640 [2021-07-09 17:00:00,836 INFO L87 Difference]: Start difference. First operand 43226 states and 127295 transitions. Second operand has 41 states, 41 states have (on average 17.975609756097562) internal successors, (737), 41 states have internal predecessors, (737), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 17:00:23,206 WARN L205 SmtUtils]: Spent 156.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 65 [2021-07-09 17:00:25,450 WARN L205 SmtUtils]: Spent 2.04 s on a formula simplification. DAG size of input: 43 DAG size of output: 35 [2021-07-09 17:00:31,807 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 17:00:31,807 INFO L93 Difference]: Finished difference Result 64582 states and 173535 transitions. [2021-07-09 17:00:31,808 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 90 states. [2021-07-09 17:00:31,808 INFO L78 Accepts]: Start accepts. Automaton has has 41 states, 41 states have (on average 17.975609756097562) internal successors, (737), 41 states have internal predecessors, (737), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 389 [2021-07-09 17:00:31,808 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 17:00:31,939 INFO L225 Difference]: With dead ends: 64582 [2021-07-09 17:00:31,939 INFO L226 Difference]: Without dead ends: 64582 [2021-07-09 17:00:31,940 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 496 GetRequests, 372 SyntacticMatches, 4 SemanticMatches, 120 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4959 ImplicationChecksByTransitivity, 9287.5ms TimeCoverageRelationStatistics Valid=1325, Invalid=13437, Unknown=0, NotChecked=0, Total=14762 [2021-07-09 17:00:32,082 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 64582 states. [2021-07-09 17:00:33,059 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 64582 to 43259. [2021-07-09 17:00:33,144 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 43259 states, 43257 states have (on average 2.9443789444482973) internal successors, (127365), 43258 states have internal predecessors, (127365), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 17:00:33,253 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43259 states to 43259 states and 127365 transitions. [2021-07-09 17:00:33,253 INFO L78 Accepts]: Start accepts. Automaton has 43259 states and 127365 transitions. Word has length 389 [2021-07-09 17:00:33,254 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 17:00:33,254 INFO L482 AbstractCegarLoop]: Abstraction has 43259 states and 127365 transitions. [2021-07-09 17:00:33,254 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 41 states, 41 states have (on average 17.975609756097562) internal successors, (737), 41 states have internal predecessors, (737), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 17:00:33,254 INFO L276 IsEmpty]: Start isEmpty. Operand 43259 states and 127365 transitions. [2021-07-09 17:00:33,322 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 390 [2021-07-09 17:00:33,322 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 17:00:33,323 INFO L508 BasicCegarLoop]: trace histogram [9, 9, 9, 8, 8, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-09 17:00:33,539 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable75,44 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-09 17:00:33,539 INFO L430 AbstractCegarLoop]: === Iteration 53 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-09 17:00:33,539 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 17:00:33,540 INFO L82 PathProgramCache]: Analyzing trace with hash 870126303, now seen corresponding path program 44 times [2021-07-09 17:00:33,540 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 17:00:33,540 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [585447801] [2021-07-09 17:00:33,540 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 17:00:33,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 17:00:34,533 INFO L134 CoverageAnalysis]: Checked inductivity of 716 backedges. 18 proven. 686 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2021-07-09 17:00:34,533 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 17:00:34,533 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [585447801] [2021-07-09 17:00:34,533 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [585447801] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-09 17:00:34,533 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1497164854] [2021-07-09 17:00:34,533 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 45 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 45 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-09 17:00:34,709 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-07-09 17:00:34,709 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-07-09 17:00:34,711 INFO L263 TraceCheckSpWp]: Trace formula consists of 727 conjuncts, 47 conjunts are in the unsatisfiable core [2021-07-09 17:00:34,714 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-09 17:00:34,724 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2021-07-09 17:00:34,725 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 17:00:34,726 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 17:00:34,726 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-07-09 17:00:34,726 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:6, output treesize:5 [2021-07-09 17:00:34,741 INFO L354 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2021-07-09 17:00:34,741 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 17 treesize of output 21 [2021-07-09 17:00:34,742 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 17:00:34,746 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 17:00:34,746 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-07-09 17:00:34,746 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:17, output treesize:15 [2021-07-09 17:00:34,794 INFO L354 Elim1Store]: treesize reduction 36, result has 34.5 percent of original size [2021-07-09 17:00:34,794 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 22 treesize of output 33 [2021-07-09 17:00:34,795 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 17:00:34,803 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 17:00:34,805 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2021-07-09 17:00:34,805 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:26, output treesize:28 [2021-07-09 17:00:35,126 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2021-07-09 17:00:35,127 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 17:00:35,137 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 17:00:35,138 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2021-07-09 17:00:35,138 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:41, output treesize:37 [2021-07-09 17:00:35,345 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 20 [2021-07-09 17:00:35,346 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 17:00:35,358 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 17:00:35,359 INFO L550 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2021-07-09 17:00:35,359 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:48, output treesize:37 [2021-07-09 17:00:35,786 INFO L354 Elim1Store]: treesize reduction 54, result has 34.1 percent of original size [2021-07-09 17:00:35,787 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 27 treesize of output 45 [2021-07-09 17:00:35,788 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 17:00:35,806 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 17:00:35,807 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2021-07-09 17:00:35,807 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:48, output treesize:54 [2021-07-09 17:00:35,951 INFO L354 Elim1Store]: treesize reduction 72, result has 33.9 percent of original size [2021-07-09 17:00:35,951 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 6 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 8 case distinctions, treesize of input 32 treesize of output 57 [2021-07-09 17:00:35,953 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 17:00:35,981 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 17:00:35,985 INFO L550 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-1 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2021-07-09 17:00:35,985 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:65, output treesize:75 [2021-07-09 17:00:36,088 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 7 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 13 [2021-07-09 17:00:36,089 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 17:00:36,114 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 17:00:36,117 INFO L550 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2021-07-09 17:00:36,117 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 4 variables, input treesize:90, output treesize:75 [2021-07-09 17:00:36,155 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 10 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 41 [2021-07-09 17:00:36,156 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 17:00:36,194 INFO L628 ElimStorePlain]: treesize reduction 16, result has 78.7 percent of original size [2021-07-09 17:00:36,197 INFO L550 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-1 vars, End of recursive call: 3 dim-0 vars, and 1 xjuncts. [2021-07-09 17:00:36,198 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 4 variables, input treesize:81, output treesize:59 [2021-07-09 17:00:36,633 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 5 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 20 [2021-07-09 17:00:36,634 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 17:00:36,654 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 17:00:36,659 INFO L550 ElimStorePlain]: Start of recursive call 1: 6 dim-0 vars, 1 dim-2 vars, End of recursive call: 4 dim-0 vars, and 1 xjuncts. [2021-07-09 17:00:36,659 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 7 variables, input treesize:70, output treesize:59 [2021-07-09 17:00:37,232 WARN L313 ript$VariableManager]: TermVariabe |thread_usbThread1of1ForFork0_ieee80211_deregister_hw_~#status~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 17:00:37,276 INFO L354 Elim1Store]: treesize reduction 40, result has 45.2 percent of original size [2021-07-09 17:00:37,277 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 6 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 9 case distinctions, treesize of input 31 treesize of output 51 [2021-07-09 17:00:37,279 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 17:00:37,300 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 17:00:37,302 INFO L550 ElimStorePlain]: Start of recursive call 1: 4 dim-0 vars, 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-07-09 17:00:37,302 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 5 variables, input treesize:64, output treesize:14 [2021-07-09 17:00:37,341 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 13 [2021-07-09 17:00:37,341 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 17:00:37,345 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 17:00:37,346 INFO L550 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-07-09 17:00:37,346 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:29, output treesize:9 [2021-07-09 17:00:37,435 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 9 [2021-07-09 17:00:37,436 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 17:00:37,437 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 17:00:37,438 INFO L550 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-07-09 17:00:37,438 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:17, output treesize:5 [2021-07-09 17:00:37,741 INFO L134 CoverageAnalysis]: Checked inductivity of 716 backedges. 17 proven. 687 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2021-07-09 17:00:37,741 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1497164854] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-09 17:00:37,741 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-07-09 17:00:37,741 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [20, 23] total 40 [2021-07-09 17:00:37,741 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [831403665] [2021-07-09 17:00:37,742 INFO L462 AbstractCegarLoop]: Interpolant automaton has 40 states [2021-07-09 17:00:37,742 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 17:00:37,742 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 40 interpolants. [2021-07-09 17:00:37,742 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=181, Invalid=1379, Unknown=0, NotChecked=0, Total=1560 [2021-07-09 17:00:37,742 INFO L87 Difference]: Start difference. First operand 43259 states and 127365 transitions. Second operand has 40 states, 40 states have (on average 18.425) internal successors, (737), 40 states have internal predecessors, (737), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 17:00:38,726 WARN L205 SmtUtils]: Spent 131.00 ms on a formula simplification. DAG size of input: 37 DAG size of output: 37 [2021-07-09 17:00:39,191 WARN L205 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 42 DAG size of output: 40 [2021-07-09 17:00:42,939 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 17:00:42,939 INFO L93 Difference]: Finished difference Result 55285 states and 154802 transitions. [2021-07-09 17:00:42,939 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 46 states. [2021-07-09 17:00:42,939 INFO L78 Accepts]: Start accepts. Automaton has has 40 states, 40 states have (on average 18.425) internal successors, (737), 40 states have internal predecessors, (737), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 389 [2021-07-09 17:00:42,939 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 17:00:43,047 INFO L225 Difference]: With dead ends: 55285 [2021-07-09 17:00:43,047 INFO L226 Difference]: Without dead ends: 55285 [2021-07-09 17:00:43,048 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 455 GetRequests, 374 SyntacticMatches, 4 SemanticMatches, 77 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1682 ImplicationChecksByTransitivity, 3256.0ms TimeCoverageRelationStatistics Valid=655, Invalid=5507, Unknown=0, NotChecked=0, Total=6162 [2021-07-09 17:00:43,170 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 55285 states. [2021-07-09 17:00:43,811 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 55285 to 44039. [2021-07-09 17:00:43,867 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 44039 states, 44037 states have (on average 2.947135363444376) internal successors, (129783), 44038 states have internal predecessors, (129783), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 17:00:43,965 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44039 states to 44039 states and 129783 transitions. [2021-07-09 17:00:43,966 INFO L78 Accepts]: Start accepts. Automaton has 44039 states and 129783 transitions. Word has length 389 [2021-07-09 17:00:43,966 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 17:00:43,966 INFO L482 AbstractCegarLoop]: Abstraction has 44039 states and 129783 transitions. [2021-07-09 17:00:43,966 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 40 states, 40 states have (on average 18.425) internal successors, (737), 40 states have internal predecessors, (737), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 17:00:43,966 INFO L276 IsEmpty]: Start isEmpty. Operand 44039 states and 129783 transitions. [2021-07-09 17:00:44,030 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 390 [2021-07-09 17:00:44,031 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 17:00:44,031 INFO L508 BasicCegarLoop]: trace histogram [9, 9, 9, 8, 8, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-09 17:00:44,247 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 45 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable79 [2021-07-09 17:00:44,248 INFO L430 AbstractCegarLoop]: === Iteration 54 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-09 17:00:44,248 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 17:00:44,248 INFO L82 PathProgramCache]: Analyzing trace with hash -1988253781, now seen corresponding path program 45 times [2021-07-09 17:00:44,248 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 17:00:44,248 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [720407352] [2021-07-09 17:00:44,248 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 17:00:44,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 17:00:45,388 INFO L134 CoverageAnalysis]: Checked inductivity of 716 backedges. 18 proven. 686 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2021-07-09 17:00:45,388 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 17:00:45,388 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [720407352] [2021-07-09 17:00:45,388 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [720407352] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-09 17:00:45,388 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1596003962] [2021-07-09 17:00:45,389 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 46 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 46 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-09 17:00:45,862 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 8 check-sat command(s) [2021-07-09 17:00:45,862 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-07-09 17:00:45,865 INFO L263 TraceCheckSpWp]: Trace formula consists of 727 conjuncts, 53 conjunts are in the unsatisfiable core [2021-07-09 17:00:45,868 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-09 17:00:45,879 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2021-07-09 17:00:45,879 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 17:00:45,880 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 17:00:45,881 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-07-09 17:00:45,881 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:6, output treesize:5 [2021-07-09 17:00:45,897 INFO L354 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2021-07-09 17:00:45,897 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 17 treesize of output 21 [2021-07-09 17:00:45,898 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 17:00:45,903 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 17:00:45,903 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-07-09 17:00:45,904 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:17, output treesize:15 [2021-07-09 17:00:45,976 INFO L354 Elim1Store]: treesize reduction 36, result has 34.5 percent of original size [2021-07-09 17:00:45,976 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 22 treesize of output 33 [2021-07-09 17:00:45,978 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 17:00:45,985 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 17:00:45,986 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2021-07-09 17:00:45,987 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:26, output treesize:28 [2021-07-09 17:00:46,398 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2021-07-09 17:00:46,398 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 17:00:46,408 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 17:00:46,409 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2021-07-09 17:00:46,409 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:41, output treesize:37 [2021-07-09 17:00:46,618 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 20 [2021-07-09 17:00:46,619 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 17:00:46,631 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 17:00:46,632 INFO L550 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2021-07-09 17:00:46,633 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:48, output treesize:37 [2021-07-09 17:00:46,875 INFO L354 Elim1Store]: treesize reduction 54, result has 34.1 percent of original size [2021-07-09 17:00:46,876 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 27 treesize of output 45 [2021-07-09 17:00:46,877 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 17:00:46,893 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 17:00:46,894 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2021-07-09 17:00:46,894 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:48, output treesize:54 [2021-07-09 17:00:47,034 INFO L354 Elim1Store]: treesize reduction 72, result has 33.9 percent of original size [2021-07-09 17:00:47,034 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 6 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 8 case distinctions, treesize of input 32 treesize of output 57 [2021-07-09 17:00:47,036 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 17:00:47,065 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 17:00:47,070 INFO L550 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-1 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2021-07-09 17:00:47,070 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:65, output treesize:75 [2021-07-09 17:00:47,175 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 7 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 13 [2021-07-09 17:00:47,176 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 17:00:47,201 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 17:00:47,205 INFO L550 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2021-07-09 17:00:47,205 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 4 variables, input treesize:90, output treesize:75 [2021-07-09 17:00:47,243 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 10 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 41 [2021-07-09 17:00:47,245 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 17:00:47,284 INFO L628 ElimStorePlain]: treesize reduction 16, result has 78.7 percent of original size [2021-07-09 17:00:47,287 INFO L550 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-1 vars, End of recursive call: 3 dim-0 vars, and 1 xjuncts. [2021-07-09 17:00:47,287 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 4 variables, input treesize:81, output treesize:59 [2021-07-09 17:00:47,744 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 5 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 20 [2021-07-09 17:00:47,745 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 17:00:47,765 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 17:00:47,769 INFO L550 ElimStorePlain]: Start of recursive call 1: 4 dim-0 vars, 1 dim-2 vars, End of recursive call: 3 dim-0 vars, and 1 xjuncts. [2021-07-09 17:00:47,769 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 5 variables, input treesize:70, output treesize:59 [2021-07-09 17:00:48,186 WARN L313 ript$VariableManager]: TermVariabe |thread_usbThread1of1ForFork0_ieee80211_deregister_hw_~#status~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 17:00:48,258 INFO L354 Elim1Store]: treesize reduction 122, result has 27.4 percent of original size [2021-07-09 17:00:48,258 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 6 select indices, 6 select index equivalence classes, 6 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 14 case distinctions, treesize of input 37 treesize of output 69 [2021-07-09 17:00:48,260 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 17:00:48,290 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 17:00:48,295 INFO L550 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-1 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2021-07-09 17:00:48,295 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 4 variables, input treesize:70, output treesize:75 [2021-07-09 17:00:48,440 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 7 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 13 [2021-07-09 17:00:48,441 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 17:00:48,467 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 17:00:48,471 INFO L550 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2021-07-09 17:00:48,471 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 4 variables, input treesize:90, output treesize:75 [2021-07-09 17:00:48,525 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 10 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 41 [2021-07-09 17:00:48,526 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 17:00:48,565 INFO L628 ElimStorePlain]: treesize reduction 16, result has 78.7 percent of original size [2021-07-09 17:00:48,569 INFO L550 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-1 vars, End of recursive call: 3 dim-0 vars, and 1 xjuncts. [2021-07-09 17:00:48,569 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 4 variables, input treesize:81, output treesize:59 [2021-07-09 17:00:48,925 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 5 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 20 [2021-07-09 17:00:48,926 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 17:00:48,946 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 17:00:48,951 INFO L550 ElimStorePlain]: Start of recursive call 1: 6 dim-0 vars, 1 dim-2 vars, End of recursive call: 4 dim-0 vars, and 1 xjuncts. [2021-07-09 17:00:48,951 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 7 variables, input treesize:70, output treesize:59 [2021-07-09 17:00:49,539 WARN L313 ript$VariableManager]: TermVariabe |thread_usbThread1of1ForFork0_ieee80211_deregister_hw_~#status~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 17:00:49,604 INFO L354 Elim1Store]: treesize reduction 40, result has 45.2 percent of original size [2021-07-09 17:00:49,605 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 6 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 9 case distinctions, treesize of input 31 treesize of output 51 [2021-07-09 17:00:49,608 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 17:00:49,633 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 17:00:49,634 INFO L550 ElimStorePlain]: Start of recursive call 1: 4 dim-0 vars, 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-07-09 17:00:49,634 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 5 variables, input treesize:64, output treesize:14 [2021-07-09 17:00:49,678 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 13 [2021-07-09 17:00:49,679 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 17:00:49,683 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 17:00:49,684 INFO L550 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-07-09 17:00:49,684 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:29, output treesize:9 [2021-07-09 17:00:49,717 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 9 [2021-07-09 17:00:49,718 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 17:00:49,720 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 17:00:49,720 INFO L550 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-07-09 17:00:49,720 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:17, output treesize:5 [2021-07-09 17:00:50,102 INFO L134 CoverageAnalysis]: Checked inductivity of 716 backedges. 18 proven. 687 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2021-07-09 17:00:50,102 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1596003962] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-09 17:00:50,102 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-07-09 17:00:50,102 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [21, 24] total 42 [2021-07-09 17:00:50,103 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [502874180] [2021-07-09 17:00:50,103 INFO L462 AbstractCegarLoop]: Interpolant automaton has 42 states [2021-07-09 17:00:50,103 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 17:00:50,104 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 42 interpolants. [2021-07-09 17:00:50,104 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=189, Invalid=1533, Unknown=0, NotChecked=0, Total=1722 [2021-07-09 17:00:50,104 INFO L87 Difference]: Start difference. First operand 44039 states and 129783 transitions. Second operand has 42 states, 42 states have (on average 17.571428571428573) internal successors, (738), 42 states have internal predecessors, (738), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 17:00:54,584 WARN L205 SmtUtils]: Spent 104.00 ms on a formula simplification that was a NOOP. DAG size: 39 [2021-07-09 17:00:55,129 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 17:00:55,129 INFO L93 Difference]: Finished difference Result 61580 states and 170022 transitions. [2021-07-09 17:00:55,129 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 55 states. [2021-07-09 17:00:55,130 INFO L78 Accepts]: Start accepts. Automaton has has 42 states, 42 states have (on average 17.571428571428573) internal successors, (738), 42 states have internal predecessors, (738), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 389 [2021-07-09 17:00:55,130 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 17:00:55,261 INFO L225 Difference]: With dead ends: 61580 [2021-07-09 17:00:55,261 INFO L226 Difference]: Without dead ends: 61580 [2021-07-09 17:00:55,261 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 465 GetRequests, 373 SyntacticMatches, 7 SemanticMatches, 85 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2257 ImplicationChecksByTransitivity, 3473.7ms TimeCoverageRelationStatistics Valid=725, Invalid=6757, Unknown=0, NotChecked=0, Total=7482 [2021-07-09 17:00:55,408 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 61580 states. [2021-07-09 17:00:56,294 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 61580 to 45741. [2021-07-09 17:00:56,366 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 45741 states, 45739 states have (on average 2.950217538643171) internal successors, (134940), 45740 states have internal predecessors, (134940), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 17:00:56,475 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45741 states to 45741 states and 134940 transitions. [2021-07-09 17:00:56,476 INFO L78 Accepts]: Start accepts. Automaton has 45741 states and 134940 transitions. Word has length 389 [2021-07-09 17:00:56,476 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 17:00:56,476 INFO L482 AbstractCegarLoop]: Abstraction has 45741 states and 134940 transitions. [2021-07-09 17:00:56,476 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 42 states, 42 states have (on average 17.571428571428573) internal successors, (738), 42 states have internal predecessors, (738), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 17:00:56,476 INFO L276 IsEmpty]: Start isEmpty. Operand 45741 states and 134940 transitions. [2021-07-09 17:00:56,549 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 390 [2021-07-09 17:00:56,549 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 17:00:56,549 INFO L508 BasicCegarLoop]: trace histogram [9, 9, 9, 8, 8, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-09 17:00:56,767 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable81,46 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-09 17:00:56,767 INFO L430 AbstractCegarLoop]: === Iteration 55 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-09 17:00:56,768 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 17:00:56,768 INFO L82 PathProgramCache]: Analyzing trace with hash 1098931241, now seen corresponding path program 46 times [2021-07-09 17:00:56,768 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 17:00:56,768 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [755208653] [2021-07-09 17:00:56,768 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 17:00:56,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 17:00:57,363 WARN L205 SmtUtils]: Spent 327.00 ms on a formula simplification that was a NOOP. DAG size: 9 [2021-07-09 17:00:57,842 INFO L134 CoverageAnalysis]: Checked inductivity of 716 backedges. 18 proven. 692 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2021-07-09 17:00:57,842 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 17:00:57,842 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [755208653] [2021-07-09 17:00:57,842 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [755208653] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-09 17:00:57,842 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1578855229] [2021-07-09 17:00:57,843 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 47 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 47 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-09 17:00:58,321 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-07-09 17:00:58,322 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-07-09 17:00:58,324 INFO L263 TraceCheckSpWp]: Trace formula consists of 727 conjuncts, 47 conjunts are in the unsatisfiable core [2021-07-09 17:00:58,327 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-09 17:00:58,337 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2021-07-09 17:00:58,338 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 17:00:58,339 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 17:00:58,340 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-07-09 17:00:58,340 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:6, output treesize:5 [2021-07-09 17:00:58,355 INFO L354 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2021-07-09 17:00:58,355 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 17 treesize of output 21 [2021-07-09 17:00:58,357 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 17:00:58,361 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 17:00:58,361 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-07-09 17:00:58,361 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:17, output treesize:15 [2021-07-09 17:00:58,416 INFO L354 Elim1Store]: treesize reduction 36, result has 34.5 percent of original size [2021-07-09 17:00:58,416 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 22 treesize of output 33 [2021-07-09 17:00:58,417 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 17:00:58,425 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 17:00:58,426 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2021-07-09 17:00:58,427 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:26, output treesize:28 [2021-07-09 17:00:58,691 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2021-07-09 17:00:58,692 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 17:00:58,702 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 17:00:58,703 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2021-07-09 17:00:58,703 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:41, output treesize:37 [2021-07-09 17:00:58,915 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 20 [2021-07-09 17:00:58,916 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 17:00:58,928 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 17:00:58,929 INFO L550 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2021-07-09 17:00:58,929 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:48, output treesize:37 [2021-07-09 17:00:59,328 INFO L354 Elim1Store]: treesize reduction 54, result has 34.1 percent of original size [2021-07-09 17:00:59,328 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 27 treesize of output 45 [2021-07-09 17:00:59,330 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 17:00:59,345 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 17:00:59,347 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2021-07-09 17:00:59,347 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:48, output treesize:54 [2021-07-09 17:00:59,493 INFO L354 Elim1Store]: treesize reduction 72, result has 33.9 percent of original size [2021-07-09 17:00:59,493 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 6 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 8 case distinctions, treesize of input 32 treesize of output 57 [2021-07-09 17:00:59,495 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 17:00:59,521 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 17:00:59,525 INFO L550 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-1 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2021-07-09 17:00:59,525 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:65, output treesize:75 [2021-07-09 17:00:59,632 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 7 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 13 [2021-07-09 17:00:59,633 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 17:00:59,658 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 17:00:59,661 INFO L550 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2021-07-09 17:00:59,661 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 4 variables, input treesize:90, output treesize:75 [2021-07-09 17:00:59,699 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 10 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 41 [2021-07-09 17:00:59,701 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 17:00:59,739 INFO L628 ElimStorePlain]: treesize reduction 16, result has 78.7 percent of original size [2021-07-09 17:00:59,742 INFO L550 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-1 vars, End of recursive call: 3 dim-0 vars, and 1 xjuncts. [2021-07-09 17:00:59,742 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 4 variables, input treesize:81, output treesize:59 [2021-07-09 17:01:00,179 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 5 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 20 [2021-07-09 17:01:00,181 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 17:01:00,201 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 17:01:00,205 INFO L550 ElimStorePlain]: Start of recursive call 1: 4 dim-0 vars, 1 dim-2 vars, End of recursive call: 3 dim-0 vars, and 1 xjuncts. [2021-07-09 17:01:00,205 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 5 variables, input treesize:70, output treesize:59 [2021-07-09 17:01:00,648 WARN L313 ript$VariableManager]: TermVariabe |thread_usbThread1of1ForFork0_ieee80211_deregister_hw_~#status~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 17:01:00,720 INFO L354 Elim1Store]: treesize reduction 122, result has 27.4 percent of original size [2021-07-09 17:01:00,720 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 6 select indices, 6 select index equivalence classes, 6 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 14 case distinctions, treesize of input 37 treesize of output 69 [2021-07-09 17:01:00,722 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 17:01:00,753 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 17:01:00,758 INFO L550 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-1 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2021-07-09 17:01:00,758 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 4 variables, input treesize:70, output treesize:75 [2021-07-09 17:01:00,878 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 7 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 13 [2021-07-09 17:01:00,879 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 17:01:00,905 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 17:01:00,908 INFO L550 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2021-07-09 17:01:00,908 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 4 variables, input treesize:90, output treesize:75 [2021-07-09 17:01:00,944 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 10 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 41 [2021-07-09 17:01:00,946 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 17:01:00,984 INFO L628 ElimStorePlain]: treesize reduction 16, result has 78.7 percent of original size [2021-07-09 17:01:00,987 INFO L550 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-1 vars, End of recursive call: 3 dim-0 vars, and 1 xjuncts. [2021-07-09 17:01:00,987 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 4 variables, input treesize:81, output treesize:59 [2021-07-09 17:01:01,332 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 5 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 20 [2021-07-09 17:01:01,333 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 17:01:01,355 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 17:01:01,360 INFO L550 ElimStorePlain]: Start of recursive call 1: 6 dim-0 vars, 1 dim-2 vars, End of recursive call: 4 dim-0 vars, and 1 xjuncts. [2021-07-09 17:01:01,360 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 7 variables, input treesize:70, output treesize:59 [2021-07-09 17:01:01,947 WARN L313 ript$VariableManager]: TermVariabe |thread_usbThread1of1ForFork0_ieee80211_deregister_hw_~#status~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 17:01:01,999 INFO L354 Elim1Store]: treesize reduction 40, result has 45.2 percent of original size [2021-07-09 17:01:01,999 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 6 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 9 case distinctions, treesize of input 31 treesize of output 51 [2021-07-09 17:01:02,002 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 17:01:02,024 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 17:01:02,027 INFO L550 ElimStorePlain]: Start of recursive call 1: 4 dim-0 vars, 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-07-09 17:01:02,027 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 5 variables, input treesize:64, output treesize:14 [2021-07-09 17:01:02,070 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 13 [2021-07-09 17:01:02,071 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 17:01:02,074 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 17:01:02,075 INFO L550 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-07-09 17:01:02,075 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:29, output treesize:9 [2021-07-09 17:01:02,171 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 9 [2021-07-09 17:01:02,172 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 17:01:02,173 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 17:01:02,174 INFO L550 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-07-09 17:01:02,174 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:17, output treesize:5 [2021-07-09 17:01:02,389 INFO L134 CoverageAnalysis]: Checked inductivity of 716 backedges. 18 proven. 686 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2021-07-09 17:01:02,389 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1578855229] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-09 17:01:02,389 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-07-09 17:01:02,389 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [22, 22] total 41 [2021-07-09 17:01:02,389 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [143313966] [2021-07-09 17:01:02,390 INFO L462 AbstractCegarLoop]: Interpolant automaton has 41 states [2021-07-09 17:01:02,390 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 17:01:02,390 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 41 interpolants. [2021-07-09 17:01:02,390 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=179, Invalid=1461, Unknown=0, NotChecked=0, Total=1640 [2021-07-09 17:01:02,391 INFO L87 Difference]: Start difference. First operand 45741 states and 134940 transitions. Second operand has 41 states, 41 states have (on average 18.097560975609756) internal successors, (742), 41 states have internal predecessors, (742), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 17:01:05,872 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 17:01:05,872 INFO L93 Difference]: Finished difference Result 57448 states and 161496 transitions. [2021-07-09 17:01:05,872 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2021-07-09 17:01:05,873 INFO L78 Accepts]: Start accepts. Automaton has has 41 states, 41 states have (on average 18.097560975609756) internal successors, (742), 41 states have internal predecessors, (742), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 389 [2021-07-09 17:01:05,873 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 17:01:05,994 INFO L225 Difference]: With dead ends: 57448 [2021-07-09 17:01:05,994 INFO L226 Difference]: Without dead ends: 57448 [2021-07-09 17:01:05,995 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 449 GetRequests, 374 SyntacticMatches, 6 SemanticMatches, 69 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1234 ImplicationChecksByTransitivity, 3003.1ms TimeCoverageRelationStatistics Valid=539, Invalid=4431, Unknown=0, NotChecked=0, Total=4970 [2021-07-09 17:01:06,282 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 57448 states. [2021-07-09 17:01:06,877 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 57448 to 46521. [2021-07-09 17:01:06,936 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 46521 states, 46519 states have (on average 2.9527289924546958) internal successors, (137358), 46520 states have internal predecessors, (137358), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 17:01:07,046 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46521 states to 46521 states and 137358 transitions. [2021-07-09 17:01:07,046 INFO L78 Accepts]: Start accepts. Automaton has 46521 states and 137358 transitions. Word has length 389 [2021-07-09 17:01:07,046 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 17:01:07,046 INFO L482 AbstractCegarLoop]: Abstraction has 46521 states and 137358 transitions. [2021-07-09 17:01:07,046 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 41 states, 41 states have (on average 18.097560975609756) internal successors, (742), 41 states have internal predecessors, (742), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 17:01:07,046 INFO L276 IsEmpty]: Start isEmpty. Operand 46521 states and 137358 transitions. [2021-07-09 17:01:07,424 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 390 [2021-07-09 17:01:07,424 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 17:01:07,424 INFO L508 BasicCegarLoop]: trace histogram [9, 9, 9, 8, 8, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-09 17:01:07,644 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 47 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable83 [2021-07-09 17:01:07,645 INFO L430 AbstractCegarLoop]: === Iteration 56 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-09 17:01:07,645 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 17:01:07,645 INFO L82 PathProgramCache]: Analyzing trace with hash 170188021, now seen corresponding path program 47 times [2021-07-09 17:01:07,645 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 17:01:07,645 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [311499327] [2021-07-09 17:01:07,645 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 17:01:07,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 17:01:08,620 INFO L134 CoverageAnalysis]: Checked inductivity of 716 backedges. 12 proven. 692 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2021-07-09 17:01:08,620 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 17:01:08,620 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [311499327] [2021-07-09 17:01:08,620 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [311499327] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-09 17:01:08,621 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [559006689] [2021-07-09 17:01:08,621 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 48 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 48 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-09 17:01:08,994 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 8 check-sat command(s) [2021-07-09 17:01:08,995 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-07-09 17:01:08,998 INFO L263 TraceCheckSpWp]: Trace formula consists of 727 conjuncts, 57 conjunts are in the unsatisfiable core [2021-07-09 17:01:09,001 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-09 17:01:09,012 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2021-07-09 17:01:09,012 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 17:01:09,013 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 17:01:09,014 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-07-09 17:01:09,014 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:6, output treesize:5 [2021-07-09 17:01:09,030 INFO L354 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2021-07-09 17:01:09,031 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 17 treesize of output 21 [2021-07-09 17:01:09,032 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 17:01:09,036 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 17:01:09,037 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-07-09 17:01:09,037 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:17, output treesize:15 [2021-07-09 17:01:09,092 INFO L354 Elim1Store]: treesize reduction 36, result has 34.5 percent of original size [2021-07-09 17:01:09,092 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 22 treesize of output 33 [2021-07-09 17:01:09,094 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 17:01:09,102 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 17:01:09,103 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2021-07-09 17:01:09,103 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:26, output treesize:28 [2021-07-09 17:01:09,407 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2021-07-09 17:01:09,408 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 17:01:09,418 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 17:01:09,419 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2021-07-09 17:01:09,419 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:41, output treesize:37 [2021-07-09 17:01:09,638 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 20 [2021-07-09 17:01:09,639 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 17:01:09,651 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 17:01:09,652 INFO L550 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2021-07-09 17:01:09,652 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:48, output treesize:37 [2021-07-09 17:01:10,127 INFO L354 Elim1Store]: treesize reduction 54, result has 34.1 percent of original size [2021-07-09 17:01:10,127 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 27 treesize of output 45 [2021-07-09 17:01:10,129 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 17:01:10,147 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 17:01:10,148 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2021-07-09 17:01:10,148 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:48, output treesize:54 [2021-07-09 17:01:10,299 INFO L354 Elim1Store]: treesize reduction 72, result has 33.9 percent of original size [2021-07-09 17:01:10,300 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 6 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 8 case distinctions, treesize of input 32 treesize of output 57 [2021-07-09 17:01:10,301 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 17:01:10,329 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 17:01:10,333 INFO L550 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-1 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2021-07-09 17:01:10,333 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:65, output treesize:75 [2021-07-09 17:01:10,441 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 7 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 13 [2021-07-09 17:01:10,442 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 17:01:10,467 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 17:01:10,471 INFO L550 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2021-07-09 17:01:10,471 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 4 variables, input treesize:90, output treesize:75 [2021-07-09 17:01:10,509 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 10 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 41 [2021-07-09 17:01:10,510 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 17:01:10,549 INFO L628 ElimStorePlain]: treesize reduction 16, result has 78.7 percent of original size [2021-07-09 17:01:10,553 INFO L550 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-1 vars, End of recursive call: 3 dim-0 vars, and 1 xjuncts. [2021-07-09 17:01:10,553 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 4 variables, input treesize:81, output treesize:59 [2021-07-09 17:01:11,019 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 5 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 20 [2021-07-09 17:01:11,020 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 17:01:11,040 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 17:01:11,045 INFO L550 ElimStorePlain]: Start of recursive call 1: 4 dim-0 vars, 1 dim-2 vars, End of recursive call: 3 dim-0 vars, and 1 xjuncts. [2021-07-09 17:01:11,045 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 5 variables, input treesize:70, output treesize:59 [2021-07-09 17:01:11,463 WARN L313 ript$VariableManager]: TermVariabe |thread_usbThread1of1ForFork0_ieee80211_deregister_hw_~#status~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 17:01:11,535 INFO L354 Elim1Store]: treesize reduction 122, result has 27.4 percent of original size [2021-07-09 17:01:11,535 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 6 select indices, 6 select index equivalence classes, 6 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 14 case distinctions, treesize of input 37 treesize of output 69 [2021-07-09 17:01:11,537 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 17:01:11,567 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 17:01:11,572 INFO L550 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-1 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2021-07-09 17:01:11,572 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 4 variables, input treesize:70, output treesize:75 [2021-07-09 17:01:11,700 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 7 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 13 [2021-07-09 17:01:11,701 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 17:01:11,727 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 17:01:11,731 INFO L550 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2021-07-09 17:01:11,747 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 4 variables, input treesize:90, output treesize:75 [2021-07-09 17:01:11,784 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 10 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 41 [2021-07-09 17:01:11,785 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 17:01:11,825 INFO L628 ElimStorePlain]: treesize reduction 16, result has 78.7 percent of original size [2021-07-09 17:01:11,829 INFO L550 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-1 vars, End of recursive call: 3 dim-0 vars, and 1 xjuncts. [2021-07-09 17:01:11,829 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 4 variables, input treesize:81, output treesize:59 [2021-07-09 17:01:12,181 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 5 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 20 [2021-07-09 17:01:12,182 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 17:01:12,202 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 17:01:12,206 INFO L550 ElimStorePlain]: Start of recursive call 1: 4 dim-0 vars, 1 dim-2 vars, End of recursive call: 3 dim-0 vars, and 1 xjuncts. [2021-07-09 17:01:12,207 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 5 variables, input treesize:70, output treesize:59 [2021-07-09 17:01:12,637 WARN L313 ript$VariableManager]: TermVariabe |thread_usbThread1of1ForFork0_ieee80211_deregister_hw_~#status~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 17:01:12,708 INFO L354 Elim1Store]: treesize reduction 122, result has 27.4 percent of original size [2021-07-09 17:01:12,708 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 6 select indices, 6 select index equivalence classes, 6 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 14 case distinctions, treesize of input 37 treesize of output 69 [2021-07-09 17:01:12,710 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 17:01:12,741 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 17:01:12,746 INFO L550 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-1 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2021-07-09 17:01:12,746 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 4 variables, input treesize:70, output treesize:75 [2021-07-09 17:01:12,876 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 7 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 13 [2021-07-09 17:01:12,877 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 17:01:12,904 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 17:01:12,908 INFO L550 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2021-07-09 17:01:12,908 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 4 variables, input treesize:90, output treesize:75 [2021-07-09 17:01:12,945 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 10 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 41 [2021-07-09 17:01:12,947 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 17:01:12,987 INFO L628 ElimStorePlain]: treesize reduction 16, result has 78.7 percent of original size [2021-07-09 17:01:12,990 INFO L550 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-1 vars, End of recursive call: 3 dim-0 vars, and 1 xjuncts. [2021-07-09 17:01:12,990 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 4 variables, input treesize:81, output treesize:59 [2021-07-09 17:01:13,350 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 5 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 20 [2021-07-09 17:01:13,351 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 17:01:13,387 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 17:01:13,392 INFO L550 ElimStorePlain]: Start of recursive call 1: 6 dim-0 vars, 1 dim-2 vars, End of recursive call: 4 dim-0 vars, and 1 xjuncts. [2021-07-09 17:01:13,392 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 7 variables, input treesize:70, output treesize:59 [2021-07-09 17:01:13,987 WARN L313 ript$VariableManager]: TermVariabe |thread_usbThread1of1ForFork0_ieee80211_deregister_hw_~#status~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 17:01:14,032 INFO L354 Elim1Store]: treesize reduction 40, result has 45.2 percent of original size [2021-07-09 17:01:14,033 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 6 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 9 case distinctions, treesize of input 31 treesize of output 51 [2021-07-09 17:01:14,036 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 17:01:14,058 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 17:01:14,059 INFO L550 ElimStorePlain]: Start of recursive call 1: 4 dim-0 vars, 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-07-09 17:01:14,059 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 5 variables, input treesize:64, output treesize:14 [2021-07-09 17:01:14,108 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 13 [2021-07-09 17:01:14,109 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 17:01:14,113 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 17:01:14,113 INFO L550 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-07-09 17:01:14,114 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:29, output treesize:9 [2021-07-09 17:01:14,152 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 9 [2021-07-09 17:01:14,153 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 17:01:14,154 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 17:01:14,155 INFO L550 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-07-09 17:01:14,155 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:17, output treesize:5 [2021-07-09 17:01:14,328 INFO L134 CoverageAnalysis]: Checked inductivity of 716 backedges. 17 proven. 687 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2021-07-09 17:01:14,328 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [559006689] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-09 17:01:14,329 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-07-09 17:01:14,329 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [21, 25] total 43 [2021-07-09 17:01:14,329 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2041220415] [2021-07-09 17:01:14,329 INFO L462 AbstractCegarLoop]: Interpolant automaton has 43 states [2021-07-09 17:01:14,329 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 17:01:14,329 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 43 interpolants. [2021-07-09 17:01:14,330 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=188, Invalid=1618, Unknown=0, NotChecked=0, Total=1806 [2021-07-09 17:01:14,330 INFO L87 Difference]: Start difference. First operand 46521 states and 137358 transitions. Second operand has 43 states, 43 states have (on average 17.13953488372093) internal successors, (737), 43 states have internal predecessors, (737), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 17:01:15,660 WARN L205 SmtUtils]: Spent 128.00 ms on a formula simplification. DAG size of input: 37 DAG size of output: 37 [2021-07-09 17:01:16,127 WARN L205 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 44 DAG size of output: 40 [2021-07-09 17:01:22,283 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 17:01:22,283 INFO L93 Difference]: Finished difference Result 61940 states and 172909 transitions. [2021-07-09 17:01:22,283 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 50 states. [2021-07-09 17:01:22,283 INFO L78 Accepts]: Start accepts. Automaton has has 43 states, 43 states have (on average 17.13953488372093) internal successors, (737), 43 states have internal predecessors, (737), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 389 [2021-07-09 17:01:22,284 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 17:01:22,564 INFO L225 Difference]: With dead ends: 61940 [2021-07-09 17:01:22,564 INFO L226 Difference]: Without dead ends: 61940 [2021-07-09 17:01:22,565 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 468 GetRequests, 375 SyntacticMatches, 8 SemanticMatches, 85 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1947 ImplicationChecksByTransitivity, 4444.1ms TimeCoverageRelationStatistics Valid=750, Invalid=6732, Unknown=0, NotChecked=0, Total=7482 [2021-07-09 17:01:22,695 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 61940 states. [2021-07-09 17:01:23,355 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 61940 to 46553. [2021-07-09 17:01:23,417 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 46553 states, 46551 states have (on average 2.9521599965629095) internal successors, (137426), 46552 states have internal predecessors, (137426), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 17:01:23,919 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46553 states to 46553 states and 137426 transitions. [2021-07-09 17:01:23,919 INFO L78 Accepts]: Start accepts. Automaton has 46553 states and 137426 transitions. Word has length 389 [2021-07-09 17:01:23,919 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 17:01:23,919 INFO L482 AbstractCegarLoop]: Abstraction has 46553 states and 137426 transitions. [2021-07-09 17:01:23,920 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 43 states, 43 states have (on average 17.13953488372093) internal successors, (737), 43 states have internal predecessors, (737), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 17:01:23,920 INFO L276 IsEmpty]: Start isEmpty. Operand 46553 states and 137426 transitions. [2021-07-09 17:01:23,988 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 390 [2021-07-09 17:01:23,988 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 17:01:23,988 INFO L508 BasicCegarLoop]: trace histogram [9, 9, 9, 8, 8, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-09 17:01:24,206 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable84,48 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-09 17:01:24,206 INFO L430 AbstractCegarLoop]: === Iteration 57 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-09 17:01:24,207 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 17:01:24,207 INFO L82 PathProgramCache]: Analyzing trace with hash 1669193587, now seen corresponding path program 48 times [2021-07-09 17:01:24,207 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 17:01:24,207 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [25025445] [2021-07-09 17:01:24,207 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 17:01:24,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 17:01:25,258 INFO L134 CoverageAnalysis]: Checked inductivity of 716 backedges. 12 proven. 692 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2021-07-09 17:01:25,258 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 17:01:25,258 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [25025445] [2021-07-09 17:01:25,259 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [25025445] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-09 17:01:25,259 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1727946786] [2021-07-09 17:01:25,259 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 49 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 49 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-09 17:01:25,848 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 8 check-sat command(s) [2021-07-09 17:01:25,848 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-07-09 17:01:25,852 INFO L263 TraceCheckSpWp]: Trace formula consists of 727 conjuncts, 57 conjunts are in the unsatisfiable core [2021-07-09 17:01:25,855 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-09 17:01:25,866 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2021-07-09 17:01:25,867 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 17:01:25,868 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 17:01:25,868 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-07-09 17:01:25,868 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:6, output treesize:5 [2021-07-09 17:01:25,885 INFO L354 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2021-07-09 17:01:25,885 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 17 treesize of output 21 [2021-07-09 17:01:25,887 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 17:01:25,891 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 17:01:25,892 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-07-09 17:01:25,892 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:17, output treesize:15 [2021-07-09 17:01:25,945 INFO L354 Elim1Store]: treesize reduction 28, result has 28.2 percent of original size [2021-07-09 17:01:25,945 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 17 treesize of output 22 [2021-07-09 17:01:25,946 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 17:01:25,953 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 17:01:25,954 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2021-07-09 17:01:25,954 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:21, output treesize:20 [2021-07-09 17:01:26,114 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2021-07-09 17:01:26,114 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 17:01:26,121 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 17:01:26,121 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-07-09 17:01:26,121 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:28, output treesize:24 [2021-07-09 17:01:26,222 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 20 [2021-07-09 17:01:26,223 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 17:01:26,230 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 17:01:26,231 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-07-09 17:01:26,231 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:35, output treesize:24 [2021-07-09 17:01:26,416 INFO L354 Elim1Store]: treesize reduction 36, result has 34.5 percent of original size [2021-07-09 17:01:26,416 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 22 treesize of output 33 [2021-07-09 17:01:26,417 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 17:01:26,475 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 17:01:26,476 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-07-09 17:01:26,476 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:35, output treesize:37 [2021-07-09 17:01:26,559 INFO L354 Elim1Store]: treesize reduction 54, result has 34.1 percent of original size [2021-07-09 17:01:26,560 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 27 treesize of output 45 [2021-07-09 17:01:26,561 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 17:01:26,578 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 17:01:26,579 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2021-07-09 17:01:26,579 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:48, output treesize:54 [2021-07-09 17:01:26,673 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 5 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 13 [2021-07-09 17:01:26,673 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 17:01:26,690 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 17:01:26,691 INFO L550 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2021-07-09 17:01:26,692 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:69, output treesize:54 [2021-07-09 17:01:26,714 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 33 [2021-07-09 17:01:26,716 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 17:01:26,744 INFO L628 ElimStorePlain]: treesize reduction 12, result has 77.8 percent of original size [2021-07-09 17:01:26,746 INFO L550 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-1 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2021-07-09 17:01:26,746 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:60, output treesize:42 [2021-07-09 17:01:27,057 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 20 [2021-07-09 17:01:27,058 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 17:01:27,071 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 17:01:27,073 INFO L550 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2021-07-09 17:01:27,073 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 4 variables, input treesize:53, output treesize:42 [2021-07-09 17:01:27,309 WARN L313 ript$VariableManager]: TermVariabe |thread_usbThread1of1ForFork0_ieee80211_deregister_hw_~#status~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 17:01:27,361 INFO L354 Elim1Store]: treesize reduction 96, result has 27.8 percent of original size [2021-07-09 17:01:27,362 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 3 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 11 case distinctions, treesize of input 32 treesize of output 57 [2021-07-09 17:01:27,363 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 17:01:27,383 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 17:01:27,385 INFO L550 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2021-07-09 17:01:27,385 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:53, output treesize:54 [2021-07-09 17:01:27,485 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 5 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 13 [2021-07-09 17:01:27,485 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 17:01:27,502 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 17:01:27,503 INFO L550 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2021-07-09 17:01:27,503 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:69, output treesize:54 [2021-07-09 17:01:27,525 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 33 [2021-07-09 17:01:27,527 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 17:01:27,551 INFO L628 ElimStorePlain]: treesize reduction 12, result has 77.8 percent of original size [2021-07-09 17:01:27,552 INFO L550 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-1 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2021-07-09 17:01:27,552 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:60, output treesize:42 [2021-07-09 17:01:27,783 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 20 [2021-07-09 17:01:27,784 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 17:01:27,797 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 17:01:27,799 INFO L550 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2021-07-09 17:01:27,799 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 4 variables, input treesize:53, output treesize:42 [2021-07-09 17:01:28,031 WARN L313 ript$VariableManager]: TermVariabe |thread_usbThread1of1ForFork0_ieee80211_deregister_hw_~#status~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 17:01:28,085 INFO L354 Elim1Store]: treesize reduction 96, result has 27.8 percent of original size [2021-07-09 17:01:28,085 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 3 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 11 case distinctions, treesize of input 32 treesize of output 57 [2021-07-09 17:01:28,087 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 17:01:28,106 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 17:01:28,108 INFO L550 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2021-07-09 17:01:28,108 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:53, output treesize:54 [2021-07-09 17:01:28,210 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 5 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 13 [2021-07-09 17:01:28,211 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 17:01:28,227 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 17:01:28,228 INFO L550 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2021-07-09 17:01:28,228 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:69, output treesize:54 [2021-07-09 17:01:28,250 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 33 [2021-07-09 17:01:28,251 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 17:01:28,276 INFO L628 ElimStorePlain]: treesize reduction 12, result has 77.8 percent of original size [2021-07-09 17:01:28,277 INFO L550 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-1 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2021-07-09 17:01:28,277 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:60, output treesize:42 [2021-07-09 17:01:28,514 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 20 [2021-07-09 17:01:28,515 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 17:01:28,529 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 17:01:28,533 INFO L550 ElimStorePlain]: Start of recursive call 1: 5 dim-0 vars, 1 dim-2 vars, End of recursive call: 3 dim-0 vars, and 1 xjuncts. [2021-07-09 17:01:28,533 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 6 variables, input treesize:53, output treesize:42 [2021-07-09 17:01:28,985 WARN L313 ript$VariableManager]: TermVariabe |thread_usbThread1of1ForFork0_ieee80211_deregister_hw_~#status~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 17:01:29,020 INFO L354 Elim1Store]: treesize reduction 32, result has 43.9 percent of original size [2021-07-09 17:01:29,020 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 3 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 7 case distinctions, treesize of input 26 treesize of output 40 [2021-07-09 17:01:29,023 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 17:01:29,036 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 17:01:29,037 INFO L550 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-07-09 17:01:29,037 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 4 variables, input treesize:47, output treesize:14 [2021-07-09 17:01:29,082 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 13 [2021-07-09 17:01:29,083 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 17:01:29,086 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 17:01:29,087 INFO L550 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-07-09 17:01:29,087 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:29, output treesize:9 [2021-07-09 17:01:29,190 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 9 [2021-07-09 17:01:29,191 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 17:01:29,192 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 17:01:29,193 INFO L550 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-07-09 17:01:29,193 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:17, output treesize:5 [2021-07-09 17:01:29,300 INFO L134 CoverageAnalysis]: Checked inductivity of 716 backedges. 17 proven. 687 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2021-07-09 17:01:29,300 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1727946786] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-09 17:01:29,300 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-07-09 17:01:29,301 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [22, 24] total 43 [2021-07-09 17:01:29,301 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1236724891] [2021-07-09 17:01:29,301 INFO L462 AbstractCegarLoop]: Interpolant automaton has 43 states [2021-07-09 17:01:29,301 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 17:01:29,301 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 43 interpolants. [2021-07-09 17:01:29,302 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=173, Invalid=1633, Unknown=0, NotChecked=0, Total=1806 [2021-07-09 17:01:29,302 INFO L87 Difference]: Start difference. First operand 46553 states and 137426 transitions. Second operand has 43 states, 43 states have (on average 17.13953488372093) internal successors, (737), 43 states have internal predecessors, (737), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 17:01:35,415 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 17:01:35,415 INFO L93 Difference]: Finished difference Result 60327 states and 169594 transitions. [2021-07-09 17:01:35,415 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 46 states. [2021-07-09 17:01:35,416 INFO L78 Accepts]: Start accepts. Automaton has has 43 states, 43 states have (on average 17.13953488372093) internal successors, (737), 43 states have internal predecessors, (737), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 389 [2021-07-09 17:01:35,416 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 17:01:35,540 INFO L225 Difference]: With dead ends: 60327 [2021-07-09 17:01:35,540 INFO L226 Difference]: Without dead ends: 60327 [2021-07-09 17:01:35,540 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 464 GetRequests, 374 SyntacticMatches, 9 SemanticMatches, 81 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1656 ImplicationChecksByTransitivity, 3348.5ms TimeCoverageRelationStatistics Valid=641, Invalid=6165, Unknown=0, NotChecked=0, Total=6806 [2021-07-09 17:01:35,669 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 60327 states. [2021-07-09 17:01:36,328 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 60327 to 46556. [2021-07-09 17:01:36,386 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 46556 states, 46554 states have (on average 2.952098638140654) internal successors, (137432), 46555 states have internal predecessors, (137432), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 17:01:36,491 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46556 states to 46556 states and 137432 transitions. [2021-07-09 17:01:36,492 INFO L78 Accepts]: Start accepts. Automaton has 46556 states and 137432 transitions. Word has length 389 [2021-07-09 17:01:36,492 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 17:01:36,492 INFO L482 AbstractCegarLoop]: Abstraction has 46556 states and 137432 transitions. [2021-07-09 17:01:36,492 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 43 states, 43 states have (on average 17.13953488372093) internal successors, (737), 43 states have internal predecessors, (737), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 17:01:36,492 INFO L276 IsEmpty]: Start isEmpty. Operand 46556 states and 137432 transitions. [2021-07-09 17:01:36,564 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 390 [2021-07-09 17:01:36,564 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 17:01:36,565 INFO L508 BasicCegarLoop]: trace histogram [9, 9, 9, 8, 8, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-09 17:01:36,780 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable86,49 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-09 17:01:36,781 INFO L430 AbstractCegarLoop]: === Iteration 58 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-09 17:01:36,781 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 17:01:36,781 INFO L82 PathProgramCache]: Analyzing trace with hash -1964709429, now seen corresponding path program 49 times [2021-07-09 17:01:36,781 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 17:01:36,781 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [806507474] [2021-07-09 17:01:36,781 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 17:01:36,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 17:01:37,835 INFO L134 CoverageAnalysis]: Checked inductivity of 716 backedges. 12 proven. 692 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2021-07-09 17:01:37,836 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 17:01:37,836 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [806507474] [2021-07-09 17:01:37,836 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [806507474] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-09 17:01:37,836 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1829745786] [2021-07-09 17:01:37,836 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 50 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 50 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-09 17:01:38,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 17:01:38,012 INFO L263 TraceCheckSpWp]: Trace formula consists of 727 conjuncts, 58 conjunts are in the unsatisfiable core [2021-07-09 17:01:38,015 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-09 17:01:38,022 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2021-07-09 17:01:38,022 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 17:01:38,023 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 17:01:38,023 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-07-09 17:01:38,023 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:6, output treesize:5 [2021-07-09 17:01:38,034 INFO L354 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2021-07-09 17:01:38,034 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 17 treesize of output 21 [2021-07-09 17:01:38,035 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 17:01:38,038 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 17:01:38,038 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-07-09 17:01:38,038 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:17, output treesize:15 [2021-07-09 17:01:38,076 INFO L354 Elim1Store]: treesize reduction 36, result has 34.5 percent of original size [2021-07-09 17:01:38,076 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 22 treesize of output 33 [2021-07-09 17:01:38,077 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 17:01:38,082 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 17:01:38,083 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2021-07-09 17:01:38,083 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:26, output treesize:28 [2021-07-09 17:01:38,463 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2021-07-09 17:01:38,463 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 17:01:38,471 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 17:01:38,472 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2021-07-09 17:01:38,472 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:41, output treesize:37 [2021-07-09 17:01:38,672 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 20 [2021-07-09 17:01:38,673 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 17:01:38,681 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 17:01:38,682 INFO L550 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2021-07-09 17:01:38,682 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:48, output treesize:37 [2021-07-09 17:01:39,036 INFO L354 Elim1Store]: treesize reduction 54, result has 34.1 percent of original size [2021-07-09 17:01:39,037 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 27 treesize of output 45 [2021-07-09 17:01:39,038 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 17:01:39,049 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 17:01:39,050 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2021-07-09 17:01:39,050 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:48, output treesize:54 [2021-07-09 17:01:39,168 INFO L354 Elim1Store]: treesize reduction 72, result has 33.9 percent of original size [2021-07-09 17:01:39,168 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 6 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 8 case distinctions, treesize of input 32 treesize of output 57 [2021-07-09 17:01:39,170 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 17:01:39,187 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 17:01:39,190 INFO L550 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-1 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2021-07-09 17:01:39,190 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:65, output treesize:75 [2021-07-09 17:01:39,284 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 7 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 13 [2021-07-09 17:01:39,284 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 17:01:39,302 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 17:01:39,304 INFO L550 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2021-07-09 17:01:39,305 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 4 variables, input treesize:90, output treesize:75 [2021-07-09 17:01:39,334 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 10 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 41 [2021-07-09 17:01:39,335 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 17:01:39,368 INFO L628 ElimStorePlain]: treesize reduction 16, result has 78.7 percent of original size [2021-07-09 17:01:39,371 INFO L550 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-1 vars, End of recursive call: 3 dim-0 vars, and 1 xjuncts. [2021-07-09 17:01:39,371 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 4 variables, input treesize:81, output treesize:59 [2021-07-09 17:01:39,734 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 5 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 20 [2021-07-09 17:01:39,735 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 17:01:39,749 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 17:01:39,752 INFO L550 ElimStorePlain]: Start of recursive call 1: 4 dim-0 vars, 1 dim-2 vars, End of recursive call: 3 dim-0 vars, and 1 xjuncts. [2021-07-09 17:01:39,752 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 5 variables, input treesize:70, output treesize:59 [2021-07-09 17:01:40,075 WARN L313 ript$VariableManager]: TermVariabe |thread_usbThread1of1ForFork0_ieee80211_deregister_hw_~#status~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 17:01:40,129 INFO L354 Elim1Store]: treesize reduction 122, result has 27.4 percent of original size [2021-07-09 17:01:40,129 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 6 select indices, 6 select index equivalence classes, 6 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 14 case distinctions, treesize of input 37 treesize of output 69 [2021-07-09 17:01:40,131 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 17:01:40,152 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 17:01:40,155 INFO L550 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-1 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2021-07-09 17:01:40,156 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 4 variables, input treesize:70, output treesize:75 [2021-07-09 17:01:40,262 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 7 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 13 [2021-07-09 17:01:40,263 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 17:01:40,280 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 17:01:40,283 INFO L550 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2021-07-09 17:01:40,283 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 4 variables, input treesize:90, output treesize:75 [2021-07-09 17:01:40,313 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 10 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 41 [2021-07-09 17:01:40,314 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 17:01:40,366 INFO L628 ElimStorePlain]: treesize reduction 16, result has 78.7 percent of original size [2021-07-09 17:01:40,370 INFO L550 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-1 vars, End of recursive call: 3 dim-0 vars, and 1 xjuncts. [2021-07-09 17:01:40,370 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 4 variables, input treesize:81, output treesize:59 [2021-07-09 17:01:40,736 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 5 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 20 [2021-07-09 17:01:40,737 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 17:01:40,758 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 17:01:40,774 INFO L550 ElimStorePlain]: Start of recursive call 1: 4 dim-0 vars, 1 dim-2 vars, End of recursive call: 3 dim-0 vars, and 1 xjuncts. [2021-07-09 17:01:40,774 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 5 variables, input treesize:70, output treesize:59 [2021-07-09 17:01:41,203 WARN L313 ript$VariableManager]: TermVariabe |thread_usbThread1of1ForFork0_ieee80211_deregister_hw_~#status~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 17:01:41,269 INFO L354 Elim1Store]: treesize reduction 122, result has 27.4 percent of original size [2021-07-09 17:01:41,269 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 6 select indices, 6 select index equivalence classes, 6 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 14 case distinctions, treesize of input 37 treesize of output 69 [2021-07-09 17:01:41,271 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 17:01:41,297 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 17:01:41,301 INFO L550 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-1 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2021-07-09 17:01:41,302 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 4 variables, input treesize:70, output treesize:75 [2021-07-09 17:01:41,427 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 7 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 13 [2021-07-09 17:01:41,428 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 17:01:41,450 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 17:01:41,453 INFO L550 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2021-07-09 17:01:41,453 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 4 variables, input treesize:90, output treesize:75 [2021-07-09 17:01:41,490 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 10 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 41 [2021-07-09 17:01:41,491 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 17:01:41,527 INFO L628 ElimStorePlain]: treesize reduction 16, result has 78.7 percent of original size [2021-07-09 17:01:41,531 INFO L550 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-1 vars, End of recursive call: 3 dim-0 vars, and 1 xjuncts. [2021-07-09 17:01:41,535 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 4 variables, input treesize:81, output treesize:59 [2021-07-09 17:01:41,879 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 5 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 20 [2021-07-09 17:01:41,881 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 17:01:41,900 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 17:01:41,904 INFO L550 ElimStorePlain]: Start of recursive call 1: 4 dim-0 vars, 1 dim-2 vars, End of recursive call: 3 dim-0 vars, and 1 xjuncts. [2021-07-09 17:01:41,904 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 5 variables, input treesize:70, output treesize:59 [2021-07-09 17:01:42,310 WARN L313 ript$VariableManager]: TermVariabe |thread_usbThread1of1ForFork0_ieee80211_deregister_hw_~#status~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 17:01:42,354 INFO L354 Elim1Store]: treesize reduction 40, result has 45.2 percent of original size [2021-07-09 17:01:42,355 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 6 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 9 case distinctions, treesize of input 31 treesize of output 51 [2021-07-09 17:01:42,358 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 17:01:42,379 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 17:01:42,380 INFO L550 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-07-09 17:01:42,381 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 4 variables, input treesize:64, output treesize:22 [2021-07-09 17:01:42,432 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 13 [2021-07-09 17:01:42,433 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 17:01:42,439 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 17:01:42,440 INFO L550 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-07-09 17:01:42,440 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:37, output treesize:14 [2021-07-09 17:01:42,561 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 20 [2021-07-09 17:01:42,562 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 17:01:42,566 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 17:01:42,568 INFO L550 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2021-07-09 17:01:42,568 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:25, output treesize:21 [2021-07-09 17:01:42,754 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 14 [2021-07-09 17:01:42,755 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 17:01:42,758 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 17:01:42,759 INFO L550 ElimStorePlain]: Start of recursive call 1: 4 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-07-09 17:01:42,759 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 5 variables, input treesize:34, output treesize:5 [2021-07-09 17:01:42,839 INFO L134 CoverageAnalysis]: Checked inductivity of 716 backedges. 17 proven. 687 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2021-07-09 17:01:42,839 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1829745786] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-09 17:01:42,839 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-07-09 17:01:42,839 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [23, 25] total 45 [2021-07-09 17:01:42,840 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [167513459] [2021-07-09 17:01:42,840 INFO L462 AbstractCegarLoop]: Interpolant automaton has 45 states [2021-07-09 17:01:42,840 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 17:01:42,840 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 45 interpolants. [2021-07-09 17:01:42,840 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=191, Invalid=1789, Unknown=0, NotChecked=0, Total=1980 [2021-07-09 17:01:42,841 INFO L87 Difference]: Start difference. First operand 46556 states and 137432 transitions. Second operand has 45 states, 45 states have (on average 16.377777777777776) internal successors, (737), 45 states have internal predecessors, (737), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 17:01:44,226 WARN L205 SmtUtils]: Spent 123.00 ms on a formula simplification. DAG size of input: 37 DAG size of output: 37 [2021-07-09 17:01:44,728 WARN L205 SmtUtils]: Spent 134.00 ms on a formula simplification. DAG size of input: 44 DAG size of output: 40 [2021-07-09 17:01:52,880 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 17:01:52,880 INFO L93 Difference]: Finished difference Result 62153 states and 174222 transitions. [2021-07-09 17:01:52,880 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 62 states. [2021-07-09 17:01:52,880 INFO L78 Accepts]: Start accepts. Automaton has has 45 states, 45 states have (on average 16.377777777777776) internal successors, (737), 45 states have internal predecessors, (737), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 389 [2021-07-09 17:01:52,881 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 17:01:53,011 INFO L225 Difference]: With dead ends: 62153 [2021-07-09 17:01:53,011 INFO L226 Difference]: Without dead ends: 62153 [2021-07-09 17:01:53,012 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 482 GetRequests, 375 SyntacticMatches, 8 SemanticMatches, 99 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2707 ImplicationChecksByTransitivity, 5074.5ms TimeCoverageRelationStatistics Valid=922, Invalid=9178, Unknown=0, NotChecked=0, Total=10100 [2021-07-09 17:01:53,148 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 62153 states. [2021-07-09 17:01:53,902 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 62153 to 44039. [2021-07-09 17:01:53,962 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 44039 states, 44037 states have (on average 2.947135363444376) internal successors, (129783), 44038 states have internal predecessors, (129783), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 17:01:54,065 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44039 states to 44039 states and 129783 transitions. [2021-07-09 17:01:54,065 INFO L78 Accepts]: Start accepts. Automaton has 44039 states and 129783 transitions. Word has length 389 [2021-07-09 17:01:54,065 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 17:01:54,065 INFO L482 AbstractCegarLoop]: Abstraction has 44039 states and 129783 transitions. [2021-07-09 17:01:54,066 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 45 states, 45 states have (on average 16.377777777777776) internal successors, (737), 45 states have internal predecessors, (737), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 17:01:54,066 INFO L276 IsEmpty]: Start isEmpty. Operand 44039 states and 129783 transitions. [2021-07-09 17:01:54,133 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 390 [2021-07-09 17:01:54,133 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 17:01:54,133 INFO L508 BasicCegarLoop]: trace histogram [9, 9, 9, 8, 8, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-09 17:01:54,350 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 50 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable88 [2021-07-09 17:01:54,350 INFO L430 AbstractCegarLoop]: === Iteration 59 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-09 17:01:54,351 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 17:01:54,351 INFO L82 PathProgramCache]: Analyzing trace with hash 2129972787, now seen corresponding path program 50 times [2021-07-09 17:01:54,351 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 17:01:54,351 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [216646316] [2021-07-09 17:01:54,351 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 17:01:54,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 17:01:55,526 INFO L134 CoverageAnalysis]: Checked inductivity of 716 backedges. 12 proven. 692 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2021-07-09 17:01:55,526 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 17:01:55,527 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [216646316] [2021-07-09 17:01:55,527 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [216646316] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-09 17:01:55,527 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [452661062] [2021-07-09 17:01:55,527 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 51 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 51 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-09 17:01:55,700 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-07-09 17:01:55,700 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-07-09 17:01:55,702 INFO L263 TraceCheckSpWp]: Trace formula consists of 727 conjuncts, 51 conjunts are in the unsatisfiable core [2021-07-09 17:01:55,705 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-09 17:01:55,716 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2021-07-09 17:01:55,716 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 17:01:55,717 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 17:01:55,718 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-07-09 17:01:55,718 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:6, output treesize:5 [2021-07-09 17:01:55,732 INFO L354 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2021-07-09 17:01:55,733 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 17 treesize of output 21 [2021-07-09 17:01:55,734 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 17:01:55,737 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 17:01:55,738 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-07-09 17:01:55,738 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:17, output treesize:15 [2021-07-09 17:01:55,787 INFO L354 Elim1Store]: treesize reduction 36, result has 34.5 percent of original size [2021-07-09 17:01:55,787 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 22 treesize of output 33 [2021-07-09 17:01:55,788 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 17:01:55,796 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 17:01:55,797 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2021-07-09 17:01:55,797 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:26, output treesize:28 [2021-07-09 17:01:56,060 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2021-07-09 17:01:56,061 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 17:01:56,072 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 17:01:56,074 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2021-07-09 17:01:56,074 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:41, output treesize:37 [2021-07-09 17:01:56,330 WARN L205 SmtUtils]: Spent 138.00 ms on a formula simplification that was a NOOP. DAG size: 27 [2021-07-09 17:01:56,442 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 20 [2021-07-09 17:01:56,443 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 17:01:56,455 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 17:01:56,456 INFO L550 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2021-07-09 17:01:56,457 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:48, output treesize:37 [2021-07-09 17:01:56,899 INFO L354 Elim1Store]: treesize reduction 54, result has 34.1 percent of original size [2021-07-09 17:01:56,899 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 27 treesize of output 45 [2021-07-09 17:01:56,901 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 17:01:56,919 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 17:01:56,920 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2021-07-09 17:01:56,920 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:48, output treesize:54 [2021-07-09 17:01:57,020 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 5 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 13 [2021-07-09 17:01:57,021 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 17:01:57,037 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 17:01:57,038 INFO L550 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2021-07-09 17:01:57,038 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:69, output treesize:54 [2021-07-09 17:01:57,060 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 33 [2021-07-09 17:01:57,062 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 17:01:57,087 INFO L628 ElimStorePlain]: treesize reduction 12, result has 77.8 percent of original size [2021-07-09 17:01:57,088 INFO L550 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-1 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2021-07-09 17:01:57,088 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:60, output treesize:42 [2021-07-09 17:01:57,393 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 20 [2021-07-09 17:01:57,394 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 17:01:57,407 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 17:01:57,409 INFO L550 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2021-07-09 17:01:57,409 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 4 variables, input treesize:53, output treesize:42 [2021-07-09 17:01:57,469 INFO L354 Elim1Store]: treesize reduction 96, result has 27.8 percent of original size [2021-07-09 17:01:57,469 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 3 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 11 case distinctions, treesize of input 32 treesize of output 57 [2021-07-09 17:01:57,471 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 17:01:57,493 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 17:01:57,500 INFO L550 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-1 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2021-07-09 17:01:57,500 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 4 variables, input treesize:53, output treesize:54 [2021-07-09 17:01:57,992 INFO L354 Elim1Store]: treesize reduction 72, result has 33.9 percent of original size [2021-07-09 17:01:57,992 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 6 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 8 case distinctions, treesize of input 32 treesize of output 57 [2021-07-09 17:01:57,994 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 17:01:58,017 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 17:01:58,020 INFO L550 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-1 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2021-07-09 17:01:58,020 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:65, output treesize:75 [2021-07-09 17:01:58,147 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 7 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 13 [2021-07-09 17:01:58,148 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 17:01:58,173 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 17:01:58,177 INFO L550 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2021-07-09 17:01:58,177 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 4 variables, input treesize:90, output treesize:75 [2021-07-09 17:01:58,213 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 10 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 41 [2021-07-09 17:01:58,214 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 17:01:58,253 INFO L628 ElimStorePlain]: treesize reduction 16, result has 78.7 percent of original size [2021-07-09 17:01:58,256 INFO L550 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-1 vars, End of recursive call: 3 dim-0 vars, and 1 xjuncts. [2021-07-09 17:01:58,256 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 4 variables, input treesize:81, output treesize:59 [2021-07-09 17:01:58,702 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 5 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 20 [2021-07-09 17:01:58,703 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 17:01:58,724 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 17:01:58,729 INFO L550 ElimStorePlain]: Start of recursive call 1: 6 dim-0 vars, 1 dim-2 vars, End of recursive call: 4 dim-0 vars, and 1 xjuncts. [2021-07-09 17:01:58,729 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 7 variables, input treesize:70, output treesize:59 [2021-07-09 17:01:59,313 WARN L313 ript$VariableManager]: TermVariabe |thread_usbThread1of1ForFork0_ieee80211_deregister_hw_~#status~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 17:01:59,358 INFO L354 Elim1Store]: treesize reduction 40, result has 45.2 percent of original size [2021-07-09 17:01:59,358 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 6 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 9 case distinctions, treesize of input 31 treesize of output 51 [2021-07-09 17:01:59,361 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 17:01:59,383 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 17:01:59,384 INFO L550 ElimStorePlain]: Start of recursive call 1: 4 dim-0 vars, 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-07-09 17:01:59,384 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 5 variables, input treesize:64, output treesize:14 [2021-07-09 17:01:59,429 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 13 [2021-07-09 17:01:59,430 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 17:01:59,434 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 17:01:59,435 INFO L550 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-07-09 17:01:59,435 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:29, output treesize:9 [2021-07-09 17:01:59,451 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 14 [2021-07-09 17:01:59,452 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 17:01:59,455 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 17:01:59,456 INFO L550 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-07-09 17:01:59,456 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:26, output treesize:11 [2021-07-09 17:01:59,770 INFO L134 CoverageAnalysis]: Checked inductivity of 716 backedges. 23 proven. 687 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2021-07-09 17:01:59,771 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [452661062] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-09 17:01:59,771 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-07-09 17:01:59,771 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [21, 25] total 42 [2021-07-09 17:01:59,771 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [83919132] [2021-07-09 17:01:59,771 INFO L462 AbstractCegarLoop]: Interpolant automaton has 42 states [2021-07-09 17:01:59,771 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 17:01:59,772 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 42 interpolants. [2021-07-09 17:01:59,772 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=192, Invalid=1530, Unknown=0, NotChecked=0, Total=1722 [2021-07-09 17:01:59,772 INFO L87 Difference]: Start difference. First operand 44039 states and 129783 transitions. Second operand has 42 states, 42 states have (on average 17.666666666666668) internal successors, (742), 42 states have internal predecessors, (742), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 17:02:00,570 WARN L205 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 37 DAG size of output: 37 [2021-07-09 17:02:03,218 WARN L205 SmtUtils]: Spent 164.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 48 [2021-07-09 17:02:04,120 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 17:02:04,120 INFO L93 Difference]: Finished difference Result 57608 states and 161236 transitions. [2021-07-09 17:02:04,120 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 47 states. [2021-07-09 17:02:04,120 INFO L78 Accepts]: Start accepts. Automaton has has 42 states, 42 states have (on average 17.666666666666668) internal successors, (742), 42 states have internal predecessors, (742), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 389 [2021-07-09 17:02:04,121 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 17:02:04,249 INFO L225 Difference]: With dead ends: 57608 [2021-07-09 17:02:04,249 INFO L226 Difference]: Without dead ends: 57608 [2021-07-09 17:02:04,250 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 458 GetRequests, 372 SyntacticMatches, 7 SemanticMatches, 79 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1876 ImplicationChecksByTransitivity, 3452.2ms TimeCoverageRelationStatistics Valid=653, Invalid=5827, Unknown=0, NotChecked=0, Total=6480 [2021-07-09 17:02:04,384 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 57608 states. [2021-07-09 17:02:05,199 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 57608 to 45665. [2021-07-09 17:02:05,259 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 45665 states, 45663 states have (on average 2.951163962069947) internal successors, (134759), 45664 states have internal predecessors, (134759), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 17:02:05,358 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45665 states to 45665 states and 134759 transitions. [2021-07-09 17:02:05,358 INFO L78 Accepts]: Start accepts. Automaton has 45665 states and 134759 transitions. Word has length 389 [2021-07-09 17:02:05,358 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 17:02:05,358 INFO L482 AbstractCegarLoop]: Abstraction has 45665 states and 134759 transitions. [2021-07-09 17:02:05,359 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 42 states, 42 states have (on average 17.666666666666668) internal successors, (742), 42 states have internal predecessors, (742), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 17:02:05,359 INFO L276 IsEmpty]: Start isEmpty. Operand 45665 states and 134759 transitions. [2021-07-09 17:02:05,426 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 390 [2021-07-09 17:02:05,426 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 17:02:05,427 INFO L508 BasicCegarLoop]: trace histogram [9, 9, 9, 8, 8, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-09 17:02:05,643 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable90,51 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-09 17:02:05,644 INFO L430 AbstractCegarLoop]: === Iteration 60 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-09 17:02:05,644 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 17:02:05,644 INFO L82 PathProgramCache]: Analyzing trace with hash 922190513, now seen corresponding path program 51 times [2021-07-09 17:02:05,644 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 17:02:05,644 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [492897820] [2021-07-09 17:02:05,644 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 17:02:05,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 17:02:06,810 INFO L134 CoverageAnalysis]: Checked inductivity of 716 backedges. 12 proven. 692 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2021-07-09 17:02:06,810 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 17:02:06,810 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [492897820] [2021-07-09 17:02:06,810 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [492897820] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-09 17:02:06,810 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1118181504] [2021-07-09 17:02:06,811 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 52 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 52 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-09 17:02:07,301 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 8 check-sat command(s) [2021-07-09 17:02:07,301 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-07-09 17:02:07,304 INFO L263 TraceCheckSpWp]: Trace formula consists of 727 conjuncts, 53 conjunts are in the unsatisfiable core [2021-07-09 17:02:07,307 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-09 17:02:07,318 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2021-07-09 17:02:07,319 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 17:02:07,320 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 17:02:07,320 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-07-09 17:02:07,320 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:6, output treesize:5 [2021-07-09 17:02:07,337 INFO L354 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2021-07-09 17:02:07,337 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 17 treesize of output 21 [2021-07-09 17:02:07,338 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 17:02:07,343 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 17:02:07,343 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-07-09 17:02:07,343 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:17, output treesize:15 [2021-07-09 17:02:07,398 INFO L354 Elim1Store]: treesize reduction 36, result has 34.5 percent of original size [2021-07-09 17:02:07,398 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 22 treesize of output 33 [2021-07-09 17:02:07,400 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 17:02:07,407 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 17:02:07,409 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2021-07-09 17:02:07,409 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:26, output treesize:28 [2021-07-09 17:02:07,675 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2021-07-09 17:02:07,676 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 17:02:07,686 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 17:02:07,687 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2021-07-09 17:02:07,687 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:41, output treesize:37 [2021-07-09 17:02:07,901 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 20 [2021-07-09 17:02:07,902 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 17:02:08,051 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 17:02:08,052 INFO L550 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2021-07-09 17:02:08,052 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:48, output treesize:37 [2021-07-09 17:02:08,285 INFO L354 Elim1Store]: treesize reduction 54, result has 34.1 percent of original size [2021-07-09 17:02:08,286 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 27 treesize of output 45 [2021-07-09 17:02:08,287 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 17:02:08,302 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 17:02:08,304 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2021-07-09 17:02:08,304 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:48, output treesize:54 [2021-07-09 17:02:08,400 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 5 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 13 [2021-07-09 17:02:08,401 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 17:02:08,418 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 17:02:08,419 INFO L550 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2021-07-09 17:02:08,419 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:69, output treesize:54 [2021-07-09 17:02:08,442 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 33 [2021-07-09 17:02:08,443 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 17:02:08,469 INFO L628 ElimStorePlain]: treesize reduction 12, result has 77.8 percent of original size [2021-07-09 17:02:08,470 INFO L550 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-1 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2021-07-09 17:02:08,470 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:60, output treesize:42 [2021-07-09 17:02:08,774 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 20 [2021-07-09 17:02:08,775 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 17:02:08,789 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 17:02:08,791 INFO L550 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2021-07-09 17:02:08,791 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 4 variables, input treesize:53, output treesize:42 [2021-07-09 17:02:08,852 INFO L354 Elim1Store]: treesize reduction 96, result has 27.8 percent of original size [2021-07-09 17:02:08,852 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 3 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 11 case distinctions, treesize of input 32 treesize of output 57 [2021-07-09 17:02:08,854 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 17:02:08,877 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 17:02:08,884 INFO L550 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-1 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2021-07-09 17:02:08,884 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 4 variables, input treesize:53, output treesize:54 [2021-07-09 17:02:09,379 INFO L354 Elim1Store]: treesize reduction 72, result has 33.9 percent of original size [2021-07-09 17:02:09,379 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 6 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 8 case distinctions, treesize of input 32 treesize of output 57 [2021-07-09 17:02:09,381 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 17:02:09,405 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 17:02:09,409 INFO L550 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-1 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2021-07-09 17:02:09,409 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:65, output treesize:75 [2021-07-09 17:02:09,532 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 7 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 13 [2021-07-09 17:02:09,533 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 17:02:09,559 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 17:02:09,563 INFO L550 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2021-07-09 17:02:09,563 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 4 variables, input treesize:90, output treesize:75 [2021-07-09 17:02:09,600 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 10 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 41 [2021-07-09 17:02:09,601 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 17:02:09,641 INFO L628 ElimStorePlain]: treesize reduction 16, result has 78.7 percent of original size [2021-07-09 17:02:09,644 INFO L550 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-1 vars, End of recursive call: 3 dim-0 vars, and 1 xjuncts. [2021-07-09 17:02:09,645 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 4 variables, input treesize:81, output treesize:59 [2021-07-09 17:02:10,093 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 5 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 20 [2021-07-09 17:02:10,094 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 17:02:10,117 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 17:02:10,122 INFO L550 ElimStorePlain]: Start of recursive call 1: 6 dim-0 vars, 1 dim-2 vars, End of recursive call: 4 dim-0 vars, and 1 xjuncts. [2021-07-09 17:02:10,135 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 7 variables, input treesize:70, output treesize:59 [2021-07-09 17:02:10,717 WARN L313 ript$VariableManager]: TermVariabe |thread_usbThread1of1ForFork0_ieee80211_deregister_hw_~#status~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 17:02:10,761 INFO L354 Elim1Store]: treesize reduction 40, result has 45.2 percent of original size [2021-07-09 17:02:10,761 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 6 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 9 case distinctions, treesize of input 31 treesize of output 51 [2021-07-09 17:02:10,764 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 17:02:10,785 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 17:02:10,786 INFO L550 ElimStorePlain]: Start of recursive call 1: 4 dim-0 vars, 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-07-09 17:02:10,787 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 5 variables, input treesize:64, output treesize:14 [2021-07-09 17:02:10,830 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 13 [2021-07-09 17:02:10,830 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 17:02:10,834 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 17:02:10,835 INFO L550 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-07-09 17:02:10,835 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:29, output treesize:9 [2021-07-09 17:02:10,887 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 14 [2021-07-09 17:02:10,888 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 17:02:10,891 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 17:02:10,891 INFO L550 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-07-09 17:02:10,892 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:26, output treesize:11 [2021-07-09 17:02:11,232 INFO L134 CoverageAnalysis]: Checked inductivity of 716 backedges. 24 proven. 687 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2021-07-09 17:02:11,233 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1118181504] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-09 17:02:11,233 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-07-09 17:02:11,233 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [21, 25] total 41 [2021-07-09 17:02:11,233 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1903271641] [2021-07-09 17:02:11,233 INFO L462 AbstractCegarLoop]: Interpolant automaton has 41 states [2021-07-09 17:02:11,233 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 17:02:11,234 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 41 interpolants. [2021-07-09 17:02:11,234 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=181, Invalid=1459, Unknown=0, NotChecked=0, Total=1640 [2021-07-09 17:02:11,234 INFO L87 Difference]: Start difference. First operand 45665 states and 134759 transitions. Second operand has 41 states, 41 states have (on average 17.463414634146343) internal successors, (716), 41 states have internal predecessors, (716), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 17:02:14,534 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 17:02:14,534 INFO L93 Difference]: Finished difference Result 53812 states and 153220 transitions. [2021-07-09 17:02:14,534 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2021-07-09 17:02:14,535 INFO L78 Accepts]: Start accepts. Automaton has has 41 states, 41 states have (on average 17.463414634146343) internal successors, (716), 41 states have internal predecessors, (716), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 389 [2021-07-09 17:02:14,535 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 17:02:14,648 INFO L225 Difference]: With dead ends: 53812 [2021-07-09 17:02:14,648 INFO L226 Difference]: Without dead ends: 53812 [2021-07-09 17:02:14,649 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 447 GetRequests, 373 SyntacticMatches, 7 SemanticMatches, 67 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1281 ImplicationChecksByTransitivity, 2605.9ms TimeCoverageRelationStatistics Valid=501, Invalid=4191, Unknown=0, NotChecked=0, Total=4692 [2021-07-09 17:02:14,772 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 53812 states. [2021-07-09 17:02:15,454 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 53812 to 46445. [2021-07-09 17:02:15,513 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 46445 states, 46443 states have (on average 2.9536636306870787) internal successors, (137177), 46444 states have internal predecessors, (137177), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 17:02:15,615 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46445 states to 46445 states and 137177 transitions. [2021-07-09 17:02:15,615 INFO L78 Accepts]: Start accepts. Automaton has 46445 states and 137177 transitions. Word has length 389 [2021-07-09 17:02:15,615 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 17:02:15,615 INFO L482 AbstractCegarLoop]: Abstraction has 46445 states and 137177 transitions. [2021-07-09 17:02:15,616 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 41 states, 41 states have (on average 17.463414634146343) internal successors, (716), 41 states have internal predecessors, (716), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 17:02:15,616 INFO L276 IsEmpty]: Start isEmpty. Operand 46445 states and 137177 transitions. [2021-07-09 17:02:15,684 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 390 [2021-07-09 17:02:15,685 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 17:02:15,685 INFO L508 BasicCegarLoop]: trace histogram [9, 9, 9, 8, 8, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-09 17:02:15,903 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable92,52 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-09 17:02:15,903 INFO L430 AbstractCegarLoop]: === Iteration 61 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-09 17:02:15,903 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 17:02:15,904 INFO L82 PathProgramCache]: Analyzing trace with hash -6552707, now seen corresponding path program 52 times [2021-07-09 17:02:15,904 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 17:02:15,904 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [745195346] [2021-07-09 17:02:15,904 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 17:02:16,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 17:02:17,209 INFO L134 CoverageAnalysis]: Checked inductivity of 716 backedges. 12 proven. 692 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2021-07-09 17:02:17,210 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 17:02:17,210 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [745195346] [2021-07-09 17:02:17,210 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [745195346] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-09 17:02:17,210 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [387799893] [2021-07-09 17:02:17,210 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 53 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 53 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-09 17:02:17,520 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-07-09 17:02:17,520 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-07-09 17:02:17,523 INFO L263 TraceCheckSpWp]: Trace formula consists of 727 conjuncts, 57 conjunts are in the unsatisfiable core [2021-07-09 17:02:17,526 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-09 17:02:17,534 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2021-07-09 17:02:17,534 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 17:02:17,539 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 17:02:17,539 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-07-09 17:02:17,539 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:6, output treesize:5 [2021-07-09 17:02:17,550 INFO L354 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2021-07-09 17:02:17,550 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 17 treesize of output 21 [2021-07-09 17:02:17,551 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 17:02:17,554 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 17:02:17,554 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-07-09 17:02:17,554 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:17, output treesize:15 [2021-07-09 17:02:17,591 INFO L354 Elim1Store]: treesize reduction 36, result has 34.5 percent of original size [2021-07-09 17:02:17,591 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 22 treesize of output 33 [2021-07-09 17:02:17,592 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 17:02:17,599 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 17:02:17,600 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2021-07-09 17:02:17,600 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:26, output treesize:28 [2021-07-09 17:02:17,844 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2021-07-09 17:02:17,845 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 17:02:17,853 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 17:02:17,854 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2021-07-09 17:02:17,854 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:41, output treesize:37 [2021-07-09 17:02:18,046 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 20 [2021-07-09 17:02:18,046 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 17:02:18,057 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 17:02:18,058 INFO L550 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2021-07-09 17:02:18,058 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:48, output treesize:37 [2021-07-09 17:02:18,459 INFO L354 Elim1Store]: treesize reduction 54, result has 34.1 percent of original size [2021-07-09 17:02:18,459 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 27 treesize of output 45 [2021-07-09 17:02:18,461 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 17:02:18,475 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 17:02:18,476 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2021-07-09 17:02:18,476 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:48, output treesize:54 [2021-07-09 17:02:18,570 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 5 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 13 [2021-07-09 17:02:18,570 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 17:02:18,584 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 17:02:18,586 INFO L550 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2021-07-09 17:02:18,586 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:69, output treesize:54 [2021-07-09 17:02:18,604 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 33 [2021-07-09 17:02:18,606 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 17:02:18,629 INFO L628 ElimStorePlain]: treesize reduction 12, result has 77.8 percent of original size [2021-07-09 17:02:18,630 INFO L550 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-1 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2021-07-09 17:02:18,630 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:60, output treesize:42 [2021-07-09 17:02:18,912 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 20 [2021-07-09 17:02:18,913 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 17:02:18,924 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 17:02:18,926 INFO L550 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2021-07-09 17:02:18,926 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 4 variables, input treesize:53, output treesize:42 [2021-07-09 17:02:18,978 INFO L354 Elim1Store]: treesize reduction 96, result has 27.8 percent of original size [2021-07-09 17:02:18,979 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 3 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 11 case distinctions, treesize of input 32 treesize of output 57 [2021-07-09 17:02:18,980 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 17:02:18,998 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 17:02:19,003 INFO L550 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-1 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2021-07-09 17:02:19,003 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 4 variables, input treesize:53, output treesize:54 [2021-07-09 17:02:19,445 INFO L354 Elim1Store]: treesize reduction 72, result has 33.9 percent of original size [2021-07-09 17:02:19,446 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 6 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 8 case distinctions, treesize of input 32 treesize of output 57 [2021-07-09 17:02:19,447 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 17:02:19,469 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 17:02:19,472 INFO L550 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-1 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2021-07-09 17:02:19,472 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:65, output treesize:75 [2021-07-09 17:02:19,588 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 7 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 13 [2021-07-09 17:02:19,588 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 17:02:19,610 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 17:02:19,614 INFO L550 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2021-07-09 17:02:19,614 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 4 variables, input treesize:90, output treesize:75 [2021-07-09 17:02:19,651 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 10 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 41 [2021-07-09 17:02:19,653 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 17:02:19,692 INFO L628 ElimStorePlain]: treesize reduction 16, result has 78.7 percent of original size [2021-07-09 17:02:19,695 INFO L550 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-1 vars, End of recursive call: 3 dim-0 vars, and 1 xjuncts. [2021-07-09 17:02:19,695 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 4 variables, input treesize:81, output treesize:59 [2021-07-09 17:02:20,148 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 5 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 20 [2021-07-09 17:02:20,149 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 17:02:20,168 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 17:02:20,172 INFO L550 ElimStorePlain]: Start of recursive call 1: 4 dim-0 vars, 1 dim-2 vars, End of recursive call: 3 dim-0 vars, and 1 xjuncts. [2021-07-09 17:02:20,172 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 5 variables, input treesize:70, output treesize:59 [2021-07-09 17:02:20,575 WARN L313 ript$VariableManager]: TermVariabe |thread_usbThread1of1ForFork0_ieee80211_deregister_hw_~#status~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 17:02:20,642 INFO L354 Elim1Store]: treesize reduction 122, result has 27.4 percent of original size [2021-07-09 17:02:20,642 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 6 select indices, 6 select index equivalence classes, 6 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 14 case distinctions, treesize of input 37 treesize of output 69 [2021-07-09 17:02:20,644 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 17:02:20,674 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 17:02:20,678 INFO L550 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-1 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2021-07-09 17:02:20,679 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 4 variables, input treesize:70, output treesize:75 [2021-07-09 17:02:20,808 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 7 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 13 [2021-07-09 17:02:20,809 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 17:02:20,835 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 17:02:20,839 INFO L550 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2021-07-09 17:02:20,839 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 4 variables, input treesize:90, output treesize:75 [2021-07-09 17:02:20,884 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 10 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 41 [2021-07-09 17:02:20,886 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 17:02:20,925 INFO L628 ElimStorePlain]: treesize reduction 16, result has 78.7 percent of original size [2021-07-09 17:02:20,947 INFO L550 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-1 vars, End of recursive call: 3 dim-0 vars, and 1 xjuncts. [2021-07-09 17:02:20,948 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 4 variables, input treesize:81, output treesize:59 [2021-07-09 17:02:21,274 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 5 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 20 [2021-07-09 17:02:21,275 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 17:02:21,292 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 17:02:21,297 INFO L550 ElimStorePlain]: Start of recursive call 1: 6 dim-0 vars, 1 dim-2 vars, End of recursive call: 4 dim-0 vars, and 1 xjuncts. [2021-07-09 17:02:21,297 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 7 variables, input treesize:70, output treesize:59 [2021-07-09 17:02:21,857 WARN L313 ript$VariableManager]: TermVariabe |thread_usbThread1of1ForFork0_ieee80211_deregister_hw_~#status~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 17:02:21,903 INFO L354 Elim1Store]: treesize reduction 40, result has 45.2 percent of original size [2021-07-09 17:02:21,903 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 6 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 9 case distinctions, treesize of input 31 treesize of output 51 [2021-07-09 17:02:21,906 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 17:02:21,927 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 17:02:21,929 INFO L550 ElimStorePlain]: Start of recursive call 1: 4 dim-0 vars, 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-07-09 17:02:21,929 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 5 variables, input treesize:64, output treesize:14 [2021-07-09 17:02:21,978 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 13 [2021-07-09 17:02:21,979 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 17:02:21,983 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 17:02:21,984 INFO L550 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-07-09 17:02:21,984 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:29, output treesize:9 [2021-07-09 17:02:22,023 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 9 [2021-07-09 17:02:22,024 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 17:02:22,026 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 17:02:22,026 INFO L550 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-07-09 17:02:22,026 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:17, output treesize:5 [2021-07-09 17:02:22,199 INFO L134 CoverageAnalysis]: Checked inductivity of 716 backedges. 23 proven. 687 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2021-07-09 17:02:22,199 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [387799893] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-09 17:02:22,199 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-07-09 17:02:22,200 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [22, 26] total 45 [2021-07-09 17:02:22,200 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [875221174] [2021-07-09 17:02:22,200 INFO L462 AbstractCegarLoop]: Interpolant automaton has 45 states [2021-07-09 17:02:22,200 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 17:02:22,200 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 45 interpolants. [2021-07-09 17:02:22,201 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=209, Invalid=1771, Unknown=0, NotChecked=0, Total=1980 [2021-07-09 17:02:22,201 INFO L87 Difference]: Start difference. First operand 46445 states and 137177 transitions. Second operand has 45 states, 45 states have (on average 16.488888888888887) internal successors, (742), 45 states have internal predecessors, (742), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 17:02:23,098 WARN L205 SmtUtils]: Spent 123.00 ms on a formula simplification. DAG size of input: 37 DAG size of output: 37 [2021-07-09 17:02:25,188 WARN L205 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 46 [2021-07-09 17:02:27,096 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 17:02:27,097 INFO L93 Difference]: Finished difference Result 56566 states and 159858 transitions. [2021-07-09 17:02:27,097 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 42 states. [2021-07-09 17:02:27,097 INFO L78 Accepts]: Start accepts. Automaton has has 45 states, 45 states have (on average 16.488888888888887) internal successors, (742), 45 states have internal predecessors, (742), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 389 [2021-07-09 17:02:27,097 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 17:02:27,210 INFO L225 Difference]: With dead ends: 56566 [2021-07-09 17:02:27,210 INFO L226 Difference]: Without dead ends: 56566 [2021-07-09 17:02:27,211 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 460 GetRequests, 373 SyntacticMatches, 8 SemanticMatches, 79 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1694 ImplicationChecksByTransitivity, 3920.9ms TimeCoverageRelationStatistics Valid=672, Invalid=5808, Unknown=0, NotChecked=0, Total=6480 [2021-07-09 17:02:27,345 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 56566 states. [2021-07-09 17:02:28,096 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 56566 to 46477. [2021-07-09 17:02:28,157 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 46477 states, 46475 states have (on average 2.9530930607853683) internal successors, (137245), 46476 states have internal predecessors, (137245), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 17:02:28,261 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46477 states to 46477 states and 137245 transitions. [2021-07-09 17:02:28,261 INFO L78 Accepts]: Start accepts. Automaton has 46477 states and 137245 transitions. Word has length 389 [2021-07-09 17:02:28,262 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 17:02:28,262 INFO L482 AbstractCegarLoop]: Abstraction has 46477 states and 137245 transitions. [2021-07-09 17:02:28,262 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 45 states, 45 states have (on average 16.488888888888887) internal successors, (742), 45 states have internal predecessors, (742), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 17:02:28,262 INFO L276 IsEmpty]: Start isEmpty. Operand 46477 states and 137245 transitions. [2021-07-09 17:02:28,619 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 390 [2021-07-09 17:02:28,620 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 17:02:28,620 INFO L508 BasicCegarLoop]: trace histogram [9, 9, 9, 8, 8, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-09 17:02:28,841 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable94,53 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-09 17:02:28,841 INFO L430 AbstractCegarLoop]: === Iteration 62 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-09 17:02:28,841 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 17:02:28,841 INFO L82 PathProgramCache]: Analyzing trace with hash 1492452859, now seen corresponding path program 53 times [2021-07-09 17:02:28,841 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 17:02:28,841 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [244530306] [2021-07-09 17:02:28,841 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 17:02:28,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 17:02:29,468 WARN L205 SmtUtils]: Spent 140.00 ms on a formula simplification. DAG size of input: 26 DAG size of output: 24 [2021-07-09 17:02:29,681 INFO L134 CoverageAnalysis]: Checked inductivity of 716 backedges. 12 proven. 692 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2021-07-09 17:02:29,681 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 17:02:29,681 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [244530306] [2021-07-09 17:02:29,681 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [244530306] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-09 17:02:29,681 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [956656363] [2021-07-09 17:02:29,681 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 54 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 54 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-09 17:02:29,957 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 8 check-sat command(s) [2021-07-09 17:02:29,957 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-07-09 17:02:29,960 INFO L263 TraceCheckSpWp]: Trace formula consists of 727 conjuncts, 57 conjunts are in the unsatisfiable core [2021-07-09 17:02:29,963 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-09 17:02:29,973 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2021-07-09 17:02:29,973 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 17:02:29,974 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 17:02:29,975 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-07-09 17:02:29,975 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:6, output treesize:5 [2021-07-09 17:02:29,990 INFO L354 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2021-07-09 17:02:29,990 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 17 treesize of output 21 [2021-07-09 17:02:29,991 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 17:02:29,994 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 17:02:29,995 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-07-09 17:02:29,995 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:17, output treesize:15 [2021-07-09 17:02:30,042 INFO L354 Elim1Store]: treesize reduction 36, result has 34.5 percent of original size [2021-07-09 17:02:30,042 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 22 treesize of output 33 [2021-07-09 17:02:30,044 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 17:02:30,051 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 17:02:30,051 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2021-07-09 17:02:30,051 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:26, output treesize:28 [2021-07-09 17:02:30,299 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2021-07-09 17:02:30,299 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 17:02:30,308 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 17:02:30,309 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2021-07-09 17:02:30,309 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:41, output treesize:37 [2021-07-09 17:02:30,503 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 20 [2021-07-09 17:02:30,504 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 17:02:30,515 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 17:02:30,516 INFO L550 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2021-07-09 17:02:30,516 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:48, output treesize:37 [2021-07-09 17:02:30,965 INFO L354 Elim1Store]: treesize reduction 54, result has 34.1 percent of original size [2021-07-09 17:02:30,965 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 27 treesize of output 45 [2021-07-09 17:02:30,967 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 17:02:30,985 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 17:02:30,987 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2021-07-09 17:02:30,987 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:48, output treesize:54 [2021-07-09 17:02:31,092 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 5 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 13 [2021-07-09 17:02:31,092 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 17:02:31,109 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 17:02:31,111 INFO L550 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2021-07-09 17:02:31,111 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:69, output treesize:54 [2021-07-09 17:02:31,137 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 33 [2021-07-09 17:02:31,139 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 17:02:31,165 INFO L628 ElimStorePlain]: treesize reduction 12, result has 77.8 percent of original size [2021-07-09 17:02:31,166 INFO L550 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-1 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2021-07-09 17:02:31,166 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:60, output treesize:42 [2021-07-09 17:02:31,476 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 20 [2021-07-09 17:02:31,477 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 17:02:31,489 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 17:02:31,490 INFO L550 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2021-07-09 17:02:31,490 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 4 variables, input treesize:53, output treesize:42 [2021-07-09 17:02:31,544 INFO L354 Elim1Store]: treesize reduction 96, result has 27.8 percent of original size [2021-07-09 17:02:31,544 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 3 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 11 case distinctions, treesize of input 32 treesize of output 57 [2021-07-09 17:02:31,546 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 17:02:31,563 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 17:02:31,569 INFO L550 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-1 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2021-07-09 17:02:31,569 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 4 variables, input treesize:53, output treesize:54 [2021-07-09 17:02:32,031 INFO L354 Elim1Store]: treesize reduction 72, result has 33.9 percent of original size [2021-07-09 17:02:32,031 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 6 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 8 case distinctions, treesize of input 32 treesize of output 57 [2021-07-09 17:02:32,033 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 17:02:32,057 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 17:02:32,061 INFO L550 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-1 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2021-07-09 17:02:32,061 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:65, output treesize:75 [2021-07-09 17:02:32,188 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 7 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 13 [2021-07-09 17:02:32,189 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 17:02:32,214 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 17:02:32,218 INFO L550 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2021-07-09 17:02:32,218 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 4 variables, input treesize:90, output treesize:75 [2021-07-09 17:02:32,254 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 10 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 41 [2021-07-09 17:02:32,255 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 17:02:32,295 INFO L628 ElimStorePlain]: treesize reduction 16, result has 78.7 percent of original size [2021-07-09 17:02:32,299 INFO L550 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-1 vars, End of recursive call: 3 dim-0 vars, and 1 xjuncts. [2021-07-09 17:02:32,299 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 4 variables, input treesize:81, output treesize:59 [2021-07-09 17:02:34,746 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 5 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 20 [2021-07-09 17:02:34,747 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 17:02:34,767 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 17:02:34,771 INFO L550 ElimStorePlain]: Start of recursive call 1: 4 dim-0 vars, 1 dim-2 vars, End of recursive call: 3 dim-0 vars, and 1 xjuncts. [2021-07-09 17:02:34,771 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 5 variables, input treesize:70, output treesize:59 [2021-07-09 17:02:35,196 WARN L313 ript$VariableManager]: TermVariabe |thread_usbThread1of1ForFork0_ieee80211_deregister_hw_~#status~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 17:02:35,267 INFO L354 Elim1Store]: treesize reduction 122, result has 27.4 percent of original size [2021-07-09 17:02:35,268 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 6 select indices, 6 select index equivalence classes, 6 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 14 case distinctions, treesize of input 37 treesize of output 69 [2021-07-09 17:02:35,270 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 17:02:35,301 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 17:02:35,306 INFO L550 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-1 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2021-07-09 17:02:35,306 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 4 variables, input treesize:70, output treesize:75 [2021-07-09 17:02:35,450 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 7 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 13 [2021-07-09 17:02:35,451 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 17:02:35,478 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 17:02:35,482 INFO L550 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2021-07-09 17:02:35,482 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 4 variables, input treesize:90, output treesize:75 [2021-07-09 17:02:35,519 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 10 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 41 [2021-07-09 17:02:35,521 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 17:02:35,561 INFO L628 ElimStorePlain]: treesize reduction 16, result has 78.7 percent of original size [2021-07-09 17:02:35,564 INFO L550 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-1 vars, End of recursive call: 3 dim-0 vars, and 1 xjuncts. [2021-07-09 17:02:35,564 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 4 variables, input treesize:81, output treesize:59 [2021-07-09 17:02:35,923 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 5 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 20 [2021-07-09 17:02:35,924 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 17:02:35,944 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 17:02:35,949 INFO L550 ElimStorePlain]: Start of recursive call 1: 6 dim-0 vars, 1 dim-2 vars, End of recursive call: 4 dim-0 vars, and 1 xjuncts. [2021-07-09 17:02:35,949 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 7 variables, input treesize:70, output treesize:59 [2021-07-09 17:02:36,551 WARN L313 ript$VariableManager]: TermVariabe |thread_usbThread1of1ForFork0_ieee80211_deregister_hw_~#status~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 17:02:36,596 INFO L354 Elim1Store]: treesize reduction 40, result has 45.2 percent of original size [2021-07-09 17:02:36,596 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 6 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 9 case distinctions, treesize of input 31 treesize of output 51 [2021-07-09 17:02:36,599 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 17:02:36,620 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 17:02:36,621 INFO L550 ElimStorePlain]: Start of recursive call 1: 4 dim-0 vars, 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-07-09 17:02:36,622 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 5 variables, input treesize:64, output treesize:14 [2021-07-09 17:02:36,669 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 13 [2021-07-09 17:02:36,670 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 17:02:36,674 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 17:02:36,675 INFO L550 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-07-09 17:02:36,675 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:29, output treesize:9 [2021-07-09 17:02:36,781 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 9 [2021-07-09 17:02:36,782 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 17:02:36,783 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 17:02:36,784 INFO L550 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-07-09 17:02:36,784 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:17, output treesize:5 [2021-07-09 17:02:36,893 INFO L134 CoverageAnalysis]: Checked inductivity of 716 backedges. 23 proven. 687 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2021-07-09 17:02:36,893 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [956656363] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-09 17:02:36,893 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-07-09 17:02:36,893 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [22, 26] total 45 [2021-07-09 17:02:36,893 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2127552083] [2021-07-09 17:02:36,894 INFO L462 AbstractCegarLoop]: Interpolant automaton has 45 states [2021-07-09 17:02:36,894 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 17:02:36,894 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 45 interpolants. [2021-07-09 17:02:36,894 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=209, Invalid=1770, Unknown=1, NotChecked=0, Total=1980 [2021-07-09 17:02:36,895 INFO L87 Difference]: Start difference. First operand 46477 states and 137245 transitions. Second operand has 45 states, 45 states have (on average 16.488888888888887) internal successors, (742), 45 states have internal predecessors, (742), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 17:02:37,887 WARN L205 SmtUtils]: Spent 128.00 ms on a formula simplification. DAG size of input: 37 DAG size of output: 37 [2021-07-09 17:02:41,909 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 17:02:41,909 INFO L93 Difference]: Finished difference Result 55380 states and 157454 transitions. [2021-07-09 17:02:41,910 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 40 states. [2021-07-09 17:02:41,910 INFO L78 Accepts]: Start accepts. Automaton has has 45 states, 45 states have (on average 16.488888888888887) internal successors, (742), 45 states have internal predecessors, (742), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 389 [2021-07-09 17:02:41,910 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 17:02:42,032 INFO L225 Difference]: With dead ends: 55380 [2021-07-09 17:02:42,032 INFO L226 Difference]: Without dead ends: 55380 [2021-07-09 17:02:42,033 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 458 GetRequests, 373 SyntacticMatches, 8 SemanticMatches, 77 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1559 ImplicationChecksByTransitivity, 5877.1ms TimeCoverageRelationStatistics Valid=634, Invalid=5527, Unknown=1, NotChecked=0, Total=6162 [2021-07-09 17:02:42,161 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 55380 states. [2021-07-09 17:02:42,939 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 55380 to 46480. [2021-07-09 17:02:42,998 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 46480 states, 46478 states have (on average 2.953031541804725) internal successors, (137251), 46479 states have internal predecessors, (137251), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 17:02:43,104 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46480 states to 46480 states and 137251 transitions. [2021-07-09 17:02:43,104 INFO L78 Accepts]: Start accepts. Automaton has 46480 states and 137251 transitions. Word has length 389 [2021-07-09 17:02:43,105 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 17:02:43,105 INFO L482 AbstractCegarLoop]: Abstraction has 46480 states and 137251 transitions. [2021-07-09 17:02:43,105 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 45 states, 45 states have (on average 16.488888888888887) internal successors, (742), 45 states have internal predecessors, (742), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 17:02:43,105 INFO L276 IsEmpty]: Start isEmpty. Operand 46480 states and 137251 transitions. [2021-07-09 17:02:43,177 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 390 [2021-07-09 17:02:43,177 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 17:02:43,178 INFO L508 BasicCegarLoop]: trace histogram [9, 9, 9, 8, 8, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-09 17:02:43,392 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 54 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable96 [2021-07-09 17:02:43,393 INFO L430 AbstractCegarLoop]: === Iteration 63 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-09 17:02:43,393 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 17:02:43,393 INFO L82 PathProgramCache]: Analyzing trace with hash -2141450157, now seen corresponding path program 54 times [2021-07-09 17:02:43,394 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 17:02:43,394 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [734461793] [2021-07-09 17:02:43,394 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 17:02:43,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 17:02:44,508 INFO L134 CoverageAnalysis]: Checked inductivity of 716 backedges. 12 proven. 692 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2021-07-09 17:02:44,508 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 17:02:44,509 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [734461793] [2021-07-09 17:02:44,509 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [734461793] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-09 17:02:44,509 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [359787570] [2021-07-09 17:02:44,509 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 55 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 55 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-09 17:02:45,097 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 8 check-sat command(s) [2021-07-09 17:02:45,097 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-07-09 17:02:45,100 INFO L263 TraceCheckSpWp]: Trace formula consists of 727 conjuncts, 60 conjunts are in the unsatisfiable core [2021-07-09 17:02:45,103 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-09 17:02:45,113 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 9 [2021-07-09 17:02:45,114 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 17:02:45,115 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 17:02:45,115 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-07-09 17:02:45,115 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:12, output treesize:5 [2021-07-09 17:02:45,130 INFO L354 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2021-07-09 17:02:45,130 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 17 treesize of output 21 [2021-07-09 17:02:45,131 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 17:02:45,134 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 17:02:45,135 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-07-09 17:02:45,135 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:17, output treesize:15 [2021-07-09 17:02:45,181 INFO L354 Elim1Store]: treesize reduction 36, result has 34.5 percent of original size [2021-07-09 17:02:45,182 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 22 treesize of output 33 [2021-07-09 17:02:45,183 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 17:02:45,190 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 17:02:45,190 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2021-07-09 17:02:45,191 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:26, output treesize:28 [2021-07-09 17:02:45,463 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2021-07-09 17:02:45,464 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 17:02:45,473 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 17:02:45,474 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2021-07-09 17:02:45,474 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:41, output treesize:37 [2021-07-09 17:02:45,676 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 20 [2021-07-09 17:02:45,677 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 17:02:45,809 WARN L205 SmtUtils]: Spent 131.00 ms on a formula simplification that was a NOOP. DAG size: 31 [2021-07-09 17:02:45,810 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 17:02:45,811 INFO L550 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2021-07-09 17:02:45,811 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:48, output treesize:37 [2021-07-09 17:02:46,221 INFO L354 Elim1Store]: treesize reduction 54, result has 34.1 percent of original size [2021-07-09 17:02:46,222 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 27 treesize of output 45 [2021-07-09 17:02:46,223 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 17:02:46,238 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 17:02:46,239 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2021-07-09 17:02:46,239 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:48, output treesize:54 [2021-07-09 17:02:46,335 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 5 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 13 [2021-07-09 17:02:46,336 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 17:02:46,350 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 17:02:46,351 INFO L550 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2021-07-09 17:02:46,351 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:69, output treesize:54 [2021-07-09 17:02:46,371 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 33 [2021-07-09 17:02:46,373 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 17:02:46,396 INFO L628 ElimStorePlain]: treesize reduction 12, result has 77.8 percent of original size [2021-07-09 17:02:46,398 INFO L550 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-1 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2021-07-09 17:02:46,398 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:60, output treesize:42 [2021-07-09 17:02:46,695 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 20 [2021-07-09 17:02:46,696 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 17:02:46,707 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 17:02:46,709 INFO L550 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2021-07-09 17:02:46,709 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 4 variables, input treesize:53, output treesize:42 [2021-07-09 17:02:46,763 INFO L354 Elim1Store]: treesize reduction 96, result has 27.8 percent of original size [2021-07-09 17:02:46,763 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 3 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 11 case distinctions, treesize of input 32 treesize of output 57 [2021-07-09 17:02:46,765 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 17:02:46,782 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 17:02:46,788 INFO L550 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-1 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2021-07-09 17:02:46,788 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 4 variables, input treesize:53, output treesize:54 [2021-07-09 17:02:47,252 INFO L354 Elim1Store]: treesize reduction 72, result has 33.9 percent of original size [2021-07-09 17:02:47,252 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 6 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 8 case distinctions, treesize of input 32 treesize of output 57 [2021-07-09 17:02:47,254 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 17:02:47,278 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 17:02:47,282 INFO L550 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-1 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2021-07-09 17:02:47,282 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:65, output treesize:75 [2021-07-09 17:02:47,406 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 7 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 13 [2021-07-09 17:02:47,407 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 17:02:47,431 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 17:02:47,435 INFO L550 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2021-07-09 17:02:47,435 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 4 variables, input treesize:90, output treesize:75 [2021-07-09 17:02:47,471 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 10 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 41 [2021-07-09 17:02:47,472 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 17:02:47,510 INFO L628 ElimStorePlain]: treesize reduction 16, result has 78.7 percent of original size [2021-07-09 17:02:47,514 INFO L550 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-1 vars, End of recursive call: 3 dim-0 vars, and 1 xjuncts. [2021-07-09 17:02:47,514 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 4 variables, input treesize:81, output treesize:59 [2021-07-09 17:02:47,993 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 5 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 20 [2021-07-09 17:02:47,994 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 17:02:48,012 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 17:02:48,016 INFO L550 ElimStorePlain]: Start of recursive call 1: 4 dim-0 vars, 1 dim-2 vars, End of recursive call: 3 dim-0 vars, and 1 xjuncts. [2021-07-09 17:02:48,016 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 5 variables, input treesize:70, output treesize:59 [2021-07-09 17:02:48,380 WARN L313 ript$VariableManager]: TermVariabe |thread_usbThread1of1ForFork0_ieee80211_deregister_hw_~#status~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 17:02:48,446 INFO L354 Elim1Store]: treesize reduction 122, result has 27.4 percent of original size [2021-07-09 17:02:48,446 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 6 select indices, 6 select index equivalence classes, 6 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 14 case distinctions, treesize of input 37 treesize of output 69 [2021-07-09 17:02:48,448 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 17:02:48,483 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 17:02:48,487 INFO L550 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-1 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2021-07-09 17:02:48,488 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 4 variables, input treesize:70, output treesize:75 [2021-07-09 17:02:48,611 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 7 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 13 [2021-07-09 17:02:48,612 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 17:02:48,634 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 17:02:48,637 INFO L550 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2021-07-09 17:02:48,637 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 4 variables, input treesize:90, output treesize:75 [2021-07-09 17:02:48,671 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 10 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 41 [2021-07-09 17:02:48,672 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 17:02:48,709 INFO L628 ElimStorePlain]: treesize reduction 16, result has 78.7 percent of original size [2021-07-09 17:02:48,712 INFO L550 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-1 vars, End of recursive call: 3 dim-0 vars, and 1 xjuncts. [2021-07-09 17:02:48,713 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 4 variables, input treesize:81, output treesize:59 [2021-07-09 17:02:49,050 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 5 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 20 [2021-07-09 17:02:49,051 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 17:02:49,072 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 17:02:49,076 INFO L550 ElimStorePlain]: Start of recursive call 1: 4 dim-0 vars, 1 dim-2 vars, End of recursive call: 3 dim-0 vars, and 1 xjuncts. [2021-07-09 17:02:49,076 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 5 variables, input treesize:70, output treesize:59 [2021-07-09 17:02:49,492 WARN L313 ript$VariableManager]: TermVariabe |thread_usbThread1of1ForFork0_ieee80211_deregister_hw_~#status~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 17:02:49,541 INFO L354 Elim1Store]: treesize reduction 40, result has 45.2 percent of original size [2021-07-09 17:02:49,541 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 6 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 9 case distinctions, treesize of input 31 treesize of output 51 [2021-07-09 17:02:49,544 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 17:02:49,566 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 17:02:49,567 INFO L550 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-07-09 17:02:49,567 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 4 variables, input treesize:64, output treesize:22 [2021-07-09 17:02:49,621 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 13 [2021-07-09 17:02:49,622 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 17:02:49,628 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 17:02:49,629 INFO L550 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-07-09 17:02:49,629 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:37, output treesize:14 [2021-07-09 17:02:49,755 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 20 [2021-07-09 17:02:49,756 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 17:02:49,761 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 17:02:49,762 INFO L550 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2021-07-09 17:02:49,762 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:25, output treesize:21 [2021-07-09 17:02:49,954 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 14 [2021-07-09 17:02:49,955 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 17:02:49,958 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 17:02:49,959 INFO L550 ElimStorePlain]: Start of recursive call 1: 4 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-07-09 17:02:49,959 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 5 variables, input treesize:34, output treesize:5 [2021-07-09 17:02:50,040 INFO L134 CoverageAnalysis]: Checked inductivity of 716 backedges. 23 proven. 687 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2021-07-09 17:02:50,040 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [359787570] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-09 17:02:50,040 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-07-09 17:02:50,040 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [23, 26] total 46 [2021-07-09 17:02:50,040 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1290869906] [2021-07-09 17:02:50,041 INFO L462 AbstractCegarLoop]: Interpolant automaton has 46 states [2021-07-09 17:02:50,041 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 17:02:50,041 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 46 interpolants. [2021-07-09 17:02:50,041 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=207, Invalid=1863, Unknown=0, NotChecked=0, Total=2070 [2021-07-09 17:02:50,041 INFO L87 Difference]: Start difference. First operand 46480 states and 137251 transitions. Second operand has 46 states, 46 states have (on average 16.130434782608695) internal successors, (742), 46 states have internal predecessors, (742), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 17:02:51,136 WARN L205 SmtUtils]: Spent 128.00 ms on a formula simplification. DAG size of input: 37 DAG size of output: 37 [2021-07-09 17:02:56,259 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 17:02:56,259 INFO L93 Difference]: Finished difference Result 54823 states and 156326 transitions. [2021-07-09 17:02:56,259 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 43 states. [2021-07-09 17:02:56,259 INFO L78 Accepts]: Start accepts. Automaton has has 46 states, 46 states have (on average 16.130434782608695) internal successors, (742), 46 states have internal predecessors, (742), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 389 [2021-07-09 17:02:56,260 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 17:02:56,373 INFO L225 Difference]: With dead ends: 54823 [2021-07-09 17:02:56,373 INFO L226 Difference]: Without dead ends: 54823 [2021-07-09 17:02:56,373 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 464 GetRequests, 374 SyntacticMatches, 8 SemanticMatches, 82 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1744 ImplicationChecksByTransitivity, 4590.7ms TimeCoverageRelationStatistics Valid=691, Invalid=6281, Unknown=0, NotChecked=0, Total=6972 [2021-07-09 17:02:56,503 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 54823 states. [2021-07-09 17:02:57,118 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 54823 to 44039. [2021-07-09 17:02:57,174 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 44039 states, 44037 states have (on average 2.947135363444376) internal successors, (129783), 44038 states have internal predecessors, (129783), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 17:02:57,276 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44039 states to 44039 states and 129783 transitions. [2021-07-09 17:02:57,277 INFO L78 Accepts]: Start accepts. Automaton has 44039 states and 129783 transitions. Word has length 389 [2021-07-09 17:02:57,277 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 17:02:57,277 INFO L482 AbstractCegarLoop]: Abstraction has 44039 states and 129783 transitions. [2021-07-09 17:02:57,277 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 46 states, 46 states have (on average 16.130434782608695) internal successors, (742), 46 states have internal predecessors, (742), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 17:02:57,278 INFO L276 IsEmpty]: Start isEmpty. Operand 44039 states and 129783 transitions. [2021-07-09 17:02:57,347 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 390 [2021-07-09 17:02:57,347 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 17:02:57,347 INFO L508 BasicCegarLoop]: trace histogram [9, 9, 9, 8, 8, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-09 17:02:57,560 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 55 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable98 [2021-07-09 17:02:57,562 INFO L430 AbstractCegarLoop]: === Iteration 64 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-09 17:02:57,562 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 17:02:57,562 INFO L82 PathProgramCache]: Analyzing trace with hash -1856434527, now seen corresponding path program 55 times [2021-07-09 17:02:57,562 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 17:02:57,562 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1306163869] [2021-07-09 17:02:57,562 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 17:02:57,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 17:02:58,669 INFO L134 CoverageAnalysis]: Checked inductivity of 716 backedges. 18 proven. 686 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2021-07-09 17:02:58,670 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 17:02:58,670 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1306163869] [2021-07-09 17:02:58,670 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1306163869] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-09 17:02:58,670 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [522948649] [2021-07-09 17:02:58,670 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 56 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 56 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-09 17:02:58,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 17:02:58,848 INFO L263 TraceCheckSpWp]: Trace formula consists of 727 conjuncts, 51 conjunts are in the unsatisfiable core [2021-07-09 17:02:58,851 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-09 17:02:58,861 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2021-07-09 17:02:58,862 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 17:02:58,863 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 17:02:58,863 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-07-09 17:02:58,863 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:6, output treesize:5 [2021-07-09 17:02:58,878 INFO L354 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2021-07-09 17:02:58,878 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 17 treesize of output 21 [2021-07-09 17:02:58,879 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 17:02:58,883 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 17:02:58,883 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-07-09 17:02:58,883 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:17, output treesize:15 [2021-07-09 17:02:58,927 INFO L354 Elim1Store]: treesize reduction 36, result has 34.5 percent of original size [2021-07-09 17:02:58,927 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 22 treesize of output 33 [2021-07-09 17:02:58,929 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 17:02:58,935 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 17:02:58,936 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2021-07-09 17:02:58,936 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:26, output treesize:28 [2021-07-09 17:02:59,170 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2021-07-09 17:02:59,170 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 17:02:59,179 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 17:02:59,180 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2021-07-09 17:02:59,180 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:41, output treesize:37 [2021-07-09 17:02:59,367 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 20 [2021-07-09 17:02:59,368 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 17:02:59,378 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 17:02:59,379 INFO L550 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2021-07-09 17:02:59,379 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:48, output treesize:37 [2021-07-09 17:02:59,547 WARN L205 SmtUtils]: Spent 132.00 ms on a formula simplification that was a NOOP. DAG size: 28 [2021-07-09 17:02:59,900 INFO L354 Elim1Store]: treesize reduction 54, result has 34.1 percent of original size [2021-07-09 17:02:59,901 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 27 treesize of output 45 [2021-07-09 17:02:59,902 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 17:02:59,917 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 17:02:59,918 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2021-07-09 17:02:59,918 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:48, output treesize:54 [2021-07-09 17:03:00,010 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 5 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 13 [2021-07-09 17:03:00,011 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 17:03:00,025 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 17:03:00,026 INFO L550 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2021-07-09 17:03:00,026 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:69, output treesize:54 [2021-07-09 17:03:00,045 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 33 [2021-07-09 17:03:00,046 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 17:03:00,069 INFO L628 ElimStorePlain]: treesize reduction 12, result has 77.8 percent of original size [2021-07-09 17:03:00,071 INFO L550 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-1 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2021-07-09 17:03:00,071 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:60, output treesize:42 [2021-07-09 17:03:00,350 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 20 [2021-07-09 17:03:00,351 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 17:03:00,362 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 17:03:00,364 INFO L550 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2021-07-09 17:03:00,364 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 4 variables, input treesize:53, output treesize:42 [2021-07-09 17:03:00,586 WARN L313 ript$VariableManager]: TermVariabe |thread_usbThread1of1ForFork0_ieee80211_deregister_hw_~#status~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 17:03:00,639 INFO L354 Elim1Store]: treesize reduction 96, result has 27.8 percent of original size [2021-07-09 17:03:00,640 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 3 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 11 case distinctions, treesize of input 32 treesize of output 57 [2021-07-09 17:03:00,641 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 17:03:00,660 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 17:03:00,662 INFO L550 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2021-07-09 17:03:00,662 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:53, output treesize:54 [2021-07-09 17:03:00,811 INFO L354 Elim1Store]: treesize reduction 72, result has 33.9 percent of original size [2021-07-09 17:03:00,812 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 6 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 8 case distinctions, treesize of input 32 treesize of output 57 [2021-07-09 17:03:00,813 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 17:03:00,842 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 17:03:00,846 INFO L550 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-1 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2021-07-09 17:03:00,846 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:65, output treesize:75 [2021-07-09 17:03:00,952 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 7 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 13 [2021-07-09 17:03:00,953 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 17:03:00,978 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 17:03:00,982 INFO L550 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2021-07-09 17:03:00,982 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 4 variables, input treesize:90, output treesize:75 [2021-07-09 17:03:01,020 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 10 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 41 [2021-07-09 17:03:01,022 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 17:03:01,061 INFO L628 ElimStorePlain]: treesize reduction 16, result has 78.7 percent of original size [2021-07-09 17:03:01,065 INFO L550 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-1 vars, End of recursive call: 3 dim-0 vars, and 1 xjuncts. [2021-07-09 17:03:01,065 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 4 variables, input treesize:81, output treesize:59 [2021-07-09 17:03:01,476 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 5 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 20 [2021-07-09 17:03:01,477 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 17:03:01,497 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 17:03:01,502 INFO L550 ElimStorePlain]: Start of recursive call 1: 6 dim-0 vars, 1 dim-2 vars, End of recursive call: 4 dim-0 vars, and 1 xjuncts. [2021-07-09 17:03:01,502 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 7 variables, input treesize:70, output treesize:59 [2021-07-09 17:03:02,098 WARN L313 ript$VariableManager]: TermVariabe |thread_usbThread1of1ForFork0_ieee80211_deregister_hw_~#status~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 17:03:02,149 INFO L354 Elim1Store]: treesize reduction 40, result has 45.2 percent of original size [2021-07-09 17:03:02,149 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 6 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 9 case distinctions, treesize of input 31 treesize of output 51 [2021-07-09 17:03:02,152 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 17:03:02,174 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 17:03:02,175 INFO L550 ElimStorePlain]: Start of recursive call 1: 4 dim-0 vars, 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-07-09 17:03:02,175 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 5 variables, input treesize:64, output treesize:14 [2021-07-09 17:03:02,219 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 13 [2021-07-09 17:03:02,220 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 17:03:02,224 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 17:03:02,224 INFO L550 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-07-09 17:03:02,224 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:29, output treesize:9 [2021-07-09 17:03:02,259 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 9 [2021-07-09 17:03:02,260 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 17:03:02,261 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 17:03:02,261 INFO L550 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-07-09 17:03:02,261 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:17, output treesize:5 [2021-07-09 17:03:02,542 INFO L134 CoverageAnalysis]: Checked inductivity of 716 backedges. 23 proven. 687 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2021-07-09 17:03:02,542 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [522948649] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-09 17:03:02,542 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-07-09 17:03:02,542 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [21, 25] total 43 [2021-07-09 17:03:02,542 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [418181336] [2021-07-09 17:03:02,543 INFO L462 AbstractCegarLoop]: Interpolant automaton has 43 states [2021-07-09 17:03:02,543 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 17:03:02,543 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 43 interpolants. [2021-07-09 17:03:02,543 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=207, Invalid=1599, Unknown=0, NotChecked=0, Total=1806 [2021-07-09 17:03:02,545 INFO L87 Difference]: Start difference. First operand 44039 states and 129783 transitions. Second operand has 43 states, 43 states have (on average 17.25581395348837) internal successors, (742), 43 states have internal predecessors, (742), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 17:03:03,515 WARN L205 SmtUtils]: Spent 126.00 ms on a formula simplification. DAG size of input: 37 DAG size of output: 37 [2021-07-09 17:03:09,918 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 17:03:09,919 INFO L93 Difference]: Finished difference Result 66520 states and 185470 transitions. [2021-07-09 17:03:09,919 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 63 states. [2021-07-09 17:03:09,919 INFO L78 Accepts]: Start accepts. Automaton has has 43 states, 43 states have (on average 17.25581395348837) internal successors, (742), 43 states have internal predecessors, (742), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 389 [2021-07-09 17:03:09,919 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 17:03:10,059 INFO L225 Difference]: With dead ends: 66520 [2021-07-09 17:03:10,059 INFO L226 Difference]: Without dead ends: 66520 [2021-07-09 17:03:10,060 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 475 GetRequests, 373 SyntacticMatches, 6 SemanticMatches, 96 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2938 ImplicationChecksByTransitivity, 4362.0ms TimeCoverageRelationStatistics Valid=939, Invalid=8567, Unknown=0, NotChecked=0, Total=9506 [2021-07-09 17:03:10,215 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 66520 states. [2021-07-09 17:03:11,024 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 66520 to 44072. [2021-07-09 17:03:11,083 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 44072 states, 44070 states have (on average 2.9465169049239845) internal successors, (129853), 44071 states have internal predecessors, (129853), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 17:03:11,383 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44072 states to 44072 states and 129853 transitions. [2021-07-09 17:03:11,384 INFO L78 Accepts]: Start accepts. Automaton has 44072 states and 129853 transitions. Word has length 389 [2021-07-09 17:03:11,385 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 17:03:11,385 INFO L482 AbstractCegarLoop]: Abstraction has 44072 states and 129853 transitions. [2021-07-09 17:03:11,385 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 43 states, 43 states have (on average 17.25581395348837) internal successors, (742), 43 states have internal predecessors, (742), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 17:03:11,385 INFO L276 IsEmpty]: Start isEmpty. Operand 44072 states and 129853 transitions. [2021-07-09 17:03:11,450 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 390 [2021-07-09 17:03:11,450 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 17:03:11,450 INFO L508 BasicCegarLoop]: trace histogram [9, 9, 9, 8, 8, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-09 17:03:11,664 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable100,56 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-09 17:03:11,665 INFO L430 AbstractCegarLoop]: === Iteration 65 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-09 17:03:11,665 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 17:03:11,665 INFO L82 PathProgramCache]: Analyzing trace with hash 1230750495, now seen corresponding path program 56 times [2021-07-09 17:03:11,665 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 17:03:11,665 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [318632805] [2021-07-09 17:03:11,665 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 17:03:11,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 17:03:12,498 INFO L134 CoverageAnalysis]: Checked inductivity of 716 backedges. 18 proven. 692 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2021-07-09 17:03:12,498 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 17:03:12,498 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [318632805] [2021-07-09 17:03:12,499 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [318632805] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-09 17:03:12,499 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [628170463] [2021-07-09 17:03:12,499 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 57 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 57 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-09 17:03:12,685 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-07-09 17:03:12,685 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-07-09 17:03:12,688 INFO L263 TraceCheckSpWp]: Trace formula consists of 727 conjuncts, 51 conjunts are in the unsatisfiable core [2021-07-09 17:03:12,691 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-09 17:03:12,700 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2021-07-09 17:03:12,701 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 17:03:12,702 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 17:03:12,703 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-07-09 17:03:12,703 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:6, output treesize:5 [2021-07-09 17:03:12,717 INFO L354 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2021-07-09 17:03:12,717 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 17 treesize of output 21 [2021-07-09 17:03:12,718 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 17:03:12,722 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 17:03:12,722 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-07-09 17:03:12,722 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:17, output treesize:15 [2021-07-09 17:03:12,761 INFO L354 Elim1Store]: treesize reduction 28, result has 28.2 percent of original size [2021-07-09 17:03:12,761 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 17 treesize of output 22 [2021-07-09 17:03:12,762 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 17:03:12,767 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 17:03:12,768 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2021-07-09 17:03:12,768 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:21, output treesize:20 [2021-07-09 17:03:12,884 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2021-07-09 17:03:12,885 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 17:03:12,890 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 17:03:12,891 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-07-09 17:03:12,891 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:28, output treesize:24 [2021-07-09 17:03:12,971 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 20 [2021-07-09 17:03:12,972 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 17:03:12,978 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 17:03:12,979 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-07-09 17:03:12,979 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:35, output treesize:24 [2021-07-09 17:03:13,130 INFO L354 Elim1Store]: treesize reduction 36, result has 34.5 percent of original size [2021-07-09 17:03:13,130 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 22 treesize of output 33 [2021-07-09 17:03:13,131 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 17:03:13,140 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 17:03:13,140 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-07-09 17:03:13,140 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:35, output treesize:37 [2021-07-09 17:03:13,183 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 13 [2021-07-09 17:03:13,184 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 17:03:13,192 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 17:03:13,193 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-07-09 17:03:13,193 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:52, output treesize:37 [2021-07-09 17:03:13,254 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 25 [2021-07-09 17:03:13,255 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 17:03:13,272 INFO L628 ElimStorePlain]: treesize reduction 8, result has 78.4 percent of original size [2021-07-09 17:03:13,272 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2021-07-09 17:03:13,273 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:43, output treesize:29 [2021-07-09 17:03:13,489 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 20 [2021-07-09 17:03:13,490 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 17:03:13,497 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 17:03:13,498 INFO L550 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2021-07-09 17:03:13,499 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:40, output treesize:29 [2021-07-09 17:03:13,615 WARN L313 ript$VariableManager]: TermVariabe |thread_usbThread1of1ForFork0_ieee80211_deregister_hw_~#status~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 17:03:13,650 INFO L354 Elim1Store]: treesize reduction 70, result has 28.6 percent of original size [2021-07-09 17:03:13,650 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 1 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 8 case distinctions, treesize of input 27 treesize of output 45 [2021-07-09 17:03:13,652 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 17:03:13,664 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 17:03:13,665 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-07-09 17:03:13,665 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:40, output treesize:37 [2021-07-09 17:03:13,741 INFO L354 Elim1Store]: treesize reduction 54, result has 34.1 percent of original size [2021-07-09 17:03:13,741 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 27 treesize of output 45 [2021-07-09 17:03:13,742 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 17:03:13,756 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 17:03:13,757 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2021-07-09 17:03:13,758 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:48, output treesize:54 [2021-07-09 17:03:13,840 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 5 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 13 [2021-07-09 17:03:13,841 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 17:03:13,855 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 17:03:13,856 INFO L550 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2021-07-09 17:03:13,856 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:69, output treesize:54 [2021-07-09 17:03:13,875 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 33 [2021-07-09 17:03:13,876 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 17:03:13,899 INFO L628 ElimStorePlain]: treesize reduction 12, result has 77.8 percent of original size [2021-07-09 17:03:13,900 INFO L550 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-1 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2021-07-09 17:03:13,900 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:60, output treesize:42 [2021-07-09 17:03:14,180 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 20 [2021-07-09 17:03:14,181 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 17:03:14,193 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 17:03:14,196 INFO L550 ElimStorePlain]: Start of recursive call 1: 5 dim-0 vars, 1 dim-2 vars, End of recursive call: 3 dim-0 vars, and 1 xjuncts. [2021-07-09 17:03:14,196 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 6 variables, input treesize:53, output treesize:42 [2021-07-09 17:03:14,586 WARN L313 ript$VariableManager]: TermVariabe |thread_usbThread1of1ForFork0_ieee80211_deregister_hw_~#status~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 17:03:14,618 INFO L354 Elim1Store]: treesize reduction 32, result has 43.9 percent of original size [2021-07-09 17:03:14,618 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 3 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 7 case distinctions, treesize of input 26 treesize of output 40 [2021-07-09 17:03:14,620 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 17:03:14,633 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 17:03:14,634 INFO L550 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-07-09 17:03:14,634 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 4 variables, input treesize:47, output treesize:14 [2021-07-09 17:03:14,671 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 13 [2021-07-09 17:03:14,672 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 17:03:14,675 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 17:03:14,676 INFO L550 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-07-09 17:03:14,676 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:29, output treesize:9 [2021-07-09 17:03:14,754 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 9 [2021-07-09 17:03:14,755 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 17:03:14,756 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 17:03:14,756 INFO L550 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-07-09 17:03:14,756 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:17, output treesize:5 [2021-07-09 17:03:14,936 INFO L134 CoverageAnalysis]: Checked inductivity of 716 backedges. 23 proven. 687 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2021-07-09 17:03:14,936 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [628170463] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-09 17:03:14,936 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-07-09 17:03:14,937 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [22, 24] total 43 [2021-07-09 17:03:14,937 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1355072670] [2021-07-09 17:03:14,937 INFO L462 AbstractCegarLoop]: Interpolant automaton has 43 states [2021-07-09 17:03:14,937 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 17:03:14,952 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 43 interpolants. [2021-07-09 17:03:14,952 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=185, Invalid=1621, Unknown=0, NotChecked=0, Total=1806 [2021-07-09 17:03:14,952 INFO L87 Difference]: Start difference. First operand 44072 states and 129853 transitions. Second operand has 43 states, 43 states have (on average 17.372093023255815) internal successors, (747), 43 states have internal predecessors, (747), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 17:03:19,345 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 17:03:19,345 INFO L93 Difference]: Finished difference Result 62457 states and 177118 transitions. [2021-07-09 17:03:19,346 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 48 states. [2021-07-09 17:03:19,346 INFO L78 Accepts]: Start accepts. Automaton has has 43 states, 43 states have (on average 17.372093023255815) internal successors, (747), 43 states have internal predecessors, (747), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 389 [2021-07-09 17:03:19,346 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 17:03:19,471 INFO L225 Difference]: With dead ends: 62457 [2021-07-09 17:03:19,471 INFO L226 Difference]: Without dead ends: 62457 [2021-07-09 17:03:19,472 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 459 GetRequests, 371 SyntacticMatches, 7 SemanticMatches, 81 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1889 ImplicationChecksByTransitivity, 2618.9ms TimeCoverageRelationStatistics Valid=666, Invalid=6140, Unknown=0, NotChecked=0, Total=6806 [2021-07-09 17:03:19,607 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 62457 states. [2021-07-09 17:03:20,559 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 62457 to 48830. [2021-07-09 17:03:20,612 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 48830 states, 48828 states have (on average 2.965122470713525) internal successors, (144781), 48829 states have internal predecessors, (144781), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 17:03:20,718 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48830 states to 48830 states and 144781 transitions. [2021-07-09 17:03:20,719 INFO L78 Accepts]: Start accepts. Automaton has 48830 states and 144781 transitions. Word has length 389 [2021-07-09 17:03:20,719 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 17:03:20,719 INFO L482 AbstractCegarLoop]: Abstraction has 48830 states and 144781 transitions. [2021-07-09 17:03:20,720 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 43 states, 43 states have (on average 17.372093023255815) internal successors, (747), 43 states have internal predecessors, (747), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 17:03:20,720 INFO L276 IsEmpty]: Start isEmpty. Operand 48830 states and 144781 transitions. [2021-07-09 17:03:20,792 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 390 [2021-07-09 17:03:20,792 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 17:03:20,792 INFO L508 BasicCegarLoop]: trace histogram [9, 9, 9, 8, 8, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-09 17:03:21,004 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 57 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable102 [2021-07-09 17:03:21,005 INFO L430 AbstractCegarLoop]: === Iteration 66 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-09 17:03:21,005 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 17:03:21,005 INFO L82 PathProgramCache]: Analyzing trace with hash 302007275, now seen corresponding path program 57 times [2021-07-09 17:03:21,006 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 17:03:21,006 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1017036561] [2021-07-09 17:03:21,006 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 17:03:21,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 17:03:22,061 INFO L134 CoverageAnalysis]: Checked inductivity of 716 backedges. 18 proven. 692 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2021-07-09 17:03:22,062 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 17:03:22,062 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1017036561] [2021-07-09 17:03:22,062 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1017036561] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-09 17:03:22,062 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2003206882] [2021-07-09 17:03:22,062 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 58 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 58 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-09 17:03:22,448 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 8 check-sat command(s) [2021-07-09 17:03:22,449 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-07-09 17:03:22,451 INFO L263 TraceCheckSpWp]: Trace formula consists of 727 conjuncts, 60 conjunts are in the unsatisfiable core [2021-07-09 17:03:22,454 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-09 17:03:22,465 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2021-07-09 17:03:22,466 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 17:03:22,467 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 17:03:22,467 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-07-09 17:03:22,468 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:6, output treesize:5 [2021-07-09 17:03:22,484 INFO L354 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2021-07-09 17:03:22,484 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 17 treesize of output 21 [2021-07-09 17:03:22,485 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 17:03:22,489 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 17:03:22,490 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-07-09 17:03:22,490 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:17, output treesize:15 [2021-07-09 17:03:22,545 INFO L354 Elim1Store]: treesize reduction 36, result has 34.5 percent of original size [2021-07-09 17:03:22,545 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 22 treesize of output 33 [2021-07-09 17:03:22,547 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 17:03:22,555 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 17:03:22,556 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2021-07-09 17:03:22,556 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:26, output treesize:28 [2021-07-09 17:03:22,830 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2021-07-09 17:03:22,830 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 17:03:22,840 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 17:03:22,841 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2021-07-09 17:03:22,841 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:41, output treesize:37 [2021-07-09 17:03:23,254 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 25 [2021-07-09 17:03:23,255 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 17:03:23,268 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 17:03:23,269 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2021-07-09 17:03:23,269 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:57, output treesize:49 [2021-07-09 17:03:23,661 INFO L354 Elim1Store]: treesize reduction 54, result has 34.1 percent of original size [2021-07-09 17:03:23,661 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 27 treesize of output 45 [2021-07-09 17:03:23,663 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 17:03:23,682 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 17:03:23,683 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2021-07-09 17:03:23,683 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:64, output treesize:70 [2021-07-09 17:03:23,947 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 6 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 45 treesize of output 32 [2021-07-09 17:03:23,948 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 17:03:23,969 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 17:03:23,971 INFO L550 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2021-07-09 17:03:23,971 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:89, output treesize:74 [2021-07-09 17:03:23,994 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 33 [2021-07-09 17:03:23,995 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 17:03:24,028 INFO L628 ElimStorePlain]: treesize reduction 12, result has 83.8 percent of original size [2021-07-09 17:03:24,029 INFO L550 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-1 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2021-07-09 17:03:24,029 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:80, output treesize:62 [2021-07-09 17:03:24,382 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 32 [2021-07-09 17:03:24,385 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 17:03:24,401 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 17:03:24,402 INFO L550 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2021-07-09 17:03:24,402 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 4 variables, input treesize:73, output treesize:49 [2021-07-09 17:03:24,739 WARN L313 ript$VariableManager]: TermVariabe |thread_usbThread1of1ForFork0_ieee80211_deregister_hw_~#status~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 17:03:24,793 INFO L354 Elim1Store]: treesize reduction 96, result has 27.8 percent of original size [2021-07-09 17:03:24,794 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 3 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 11 case distinctions, treesize of input 32 treesize of output 57 [2021-07-09 17:03:24,796 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 17:03:24,820 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 17:03:24,822 INFO L550 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2021-07-09 17:03:24,823 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:60, output treesize:61 [2021-07-09 17:03:25,023 INFO L354 Elim1Store]: treesize reduction 72, result has 33.9 percent of original size [2021-07-09 17:03:25,023 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 6 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 8 case distinctions, treesize of input 32 treesize of output 57 [2021-07-09 17:03:25,024 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 17:03:25,051 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 17:03:25,055 INFO L550 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-1 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2021-07-09 17:03:25,055 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:72, output treesize:82 [2021-07-09 17:03:25,177 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 7 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 13 [2021-07-09 17:03:25,178 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 17:03:25,208 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 17:03:25,214 INFO L550 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2021-07-09 17:03:25,214 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 4 variables, input treesize:97, output treesize:82 [2021-07-09 17:03:25,254 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 10 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 41 [2021-07-09 17:03:25,256 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 17:03:25,304 INFO L628 ElimStorePlain]: treesize reduction 16, result has 80.5 percent of original size [2021-07-09 17:03:25,308 INFO L550 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-1 vars, End of recursive call: 3 dim-0 vars, and 1 xjuncts. [2021-07-09 17:03:25,308 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 4 variables, input treesize:88, output treesize:66 [2021-07-09 17:03:25,787 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 5 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 20 [2021-07-09 17:03:25,788 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 17:03:25,811 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 17:03:25,815 INFO L550 ElimStorePlain]: Start of recursive call 1: 4 dim-0 vars, 1 dim-2 vars, End of recursive call: 3 dim-0 vars, and 1 xjuncts. [2021-07-09 17:03:25,815 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 5 variables, input treesize:77, output treesize:66 [2021-07-09 17:03:26,243 WARN L313 ript$VariableManager]: TermVariabe |thread_usbThread1of1ForFork0_ieee80211_deregister_hw_~#status~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 17:03:26,315 INFO L354 Elim1Store]: treesize reduction 122, result has 27.4 percent of original size [2021-07-09 17:03:26,315 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 6 select indices, 6 select index equivalence classes, 6 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 14 case distinctions, treesize of input 37 treesize of output 69 [2021-07-09 17:03:26,317 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 17:03:26,353 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 17:03:26,358 INFO L550 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-1 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2021-07-09 17:03:26,358 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 4 variables, input treesize:77, output treesize:82 [2021-07-09 17:03:26,495 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 7 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 13 [2021-07-09 17:03:26,496 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 17:03:26,527 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 17:03:26,531 INFO L550 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2021-07-09 17:03:26,531 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 4 variables, input treesize:97, output treesize:82 [2021-07-09 17:03:26,569 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 10 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 41 [2021-07-09 17:03:26,570 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 17:03:26,618 INFO L628 ElimStorePlain]: treesize reduction 16, result has 80.5 percent of original size [2021-07-09 17:03:26,621 INFO L550 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-1 vars, End of recursive call: 3 dim-0 vars, and 1 xjuncts. [2021-07-09 17:03:26,622 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 4 variables, input treesize:88, output treesize:66 [2021-07-09 17:03:26,992 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 5 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 20 [2021-07-09 17:03:26,993 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 17:03:27,016 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 17:03:27,021 INFO L550 ElimStorePlain]: Start of recursive call 1: 6 dim-0 vars, 1 dim-2 vars, End of recursive call: 4 dim-0 vars, and 1 xjuncts. [2021-07-09 17:03:27,021 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 7 variables, input treesize:77, output treesize:66 [2021-07-09 17:03:27,891 WARN L313 ript$VariableManager]: TermVariabe |thread_usbThread1of1ForFork0_ieee80211_deregister_hw_~#status~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 17:03:27,936 INFO L354 Elim1Store]: treesize reduction 40, result has 45.2 percent of original size [2021-07-09 17:03:27,936 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 6 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 9 case distinctions, treesize of input 31 treesize of output 51 [2021-07-09 17:03:27,939 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 17:03:27,964 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 17:03:27,965 INFO L550 ElimStorePlain]: Start of recursive call 1: 4 dim-0 vars, 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-07-09 17:03:27,965 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 5 variables, input treesize:71, output treesize:21 [2021-07-09 17:03:28,022 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 13 [2021-07-09 17:03:28,023 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 17:03:28,028 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 17:03:28,029 INFO L550 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-07-09 17:03:28,029 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:36, output treesize:17 [2021-07-09 17:03:28,075 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 9 [2021-07-09 17:03:28,075 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 17:03:28,079 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 17:03:28,080 INFO L550 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-07-09 17:03:28,080 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:24, output treesize:13 [2021-07-09 17:03:28,312 INFO L134 CoverageAnalysis]: Checked inductivity of 716 backedges. 18 proven. 692 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2021-07-09 17:03:28,312 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2003206882] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-09 17:03:28,312 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-07-09 17:03:28,312 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [22, 31] total 50 [2021-07-09 17:03:28,312 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2064357679] [2021-07-09 17:03:28,313 INFO L462 AbstractCegarLoop]: Interpolant automaton has 50 states [2021-07-09 17:03:28,313 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 17:03:28,313 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 50 interpolants. [2021-07-09 17:03:28,313 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=239, Invalid=2211, Unknown=0, NotChecked=0, Total=2450 [2021-07-09 17:03:28,313 INFO L87 Difference]: Start difference. First operand 48830 states and 144781 transitions. Second operand has 50 states, 50 states have (on average 14.94) internal successors, (747), 50 states have internal predecessors, (747), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 17:03:32,181 WARN L205 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 47 [2021-07-09 17:03:34,229 WARN L205 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 61 [2021-07-09 17:03:34,390 WARN L205 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 64 [2021-07-09 17:03:37,092 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 17:03:37,092 INFO L93 Difference]: Finished difference Result 71789 states and 200472 transitions. [2021-07-09 17:03:37,093 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 69 states. [2021-07-09 17:03:37,093 INFO L78 Accepts]: Start accepts. Automaton has has 50 states, 50 states have (on average 14.94) internal successors, (747), 50 states have internal predecessors, (747), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 389 [2021-07-09 17:03:37,093 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 17:03:37,244 INFO L225 Difference]: With dead ends: 71789 [2021-07-09 17:03:37,244 INFO L226 Difference]: Without dead ends: 71789 [2021-07-09 17:03:37,245 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 486 GetRequests, 368 SyntacticMatches, 8 SemanticMatches, 110 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3914 ImplicationChecksByTransitivity, 6106.9ms TimeCoverageRelationStatistics Valid=1051, Invalid=11381, Unknown=0, NotChecked=0, Total=12432 [2021-07-09 17:03:37,395 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 71789 states. [2021-07-09 17:03:38,308 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 71789 to 50531. [2021-07-09 17:03:38,372 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 50531 states, 50529 states have (on average 2.9673256941558313) internal successors, (149936), 50530 states have internal predecessors, (149936), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 17:03:38,708 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50531 states to 50531 states and 149936 transitions. [2021-07-09 17:03:38,708 INFO L78 Accepts]: Start accepts. Automaton has 50531 states and 149936 transitions. Word has length 389 [2021-07-09 17:03:38,710 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 17:03:38,710 INFO L482 AbstractCegarLoop]: Abstraction has 50531 states and 149936 transitions. [2021-07-09 17:03:38,710 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 50 states, 50 states have (on average 14.94) internal successors, (747), 50 states have internal predecessors, (747), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 17:03:38,710 INFO L276 IsEmpty]: Start isEmpty. Operand 50531 states and 149936 transitions. [2021-07-09 17:03:38,794 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 390 [2021-07-09 17:03:38,794 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 17:03:38,794 INFO L508 BasicCegarLoop]: trace histogram [9, 9, 9, 8, 8, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-09 17:03:39,013 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable104,58 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-09 17:03:39,013 INFO L430 AbstractCegarLoop]: === Iteration 67 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-09 17:03:39,013 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 17:03:39,014 INFO L82 PathProgramCache]: Analyzing trace with hash 1801012841, now seen corresponding path program 58 times [2021-07-09 17:03:39,014 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 17:03:39,014 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2021566427] [2021-07-09 17:03:39,014 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 17:03:39,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 17:03:40,185 INFO L134 CoverageAnalysis]: Checked inductivity of 716 backedges. 18 proven. 692 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2021-07-09 17:03:40,185 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 17:03:40,185 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2021566427] [2021-07-09 17:03:40,185 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2021566427] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-09 17:03:40,185 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [734187038] [2021-07-09 17:03:40,185 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 59 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 59 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-09 17:03:40,472 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-07-09 17:03:40,472 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-07-09 17:03:40,474 INFO L263 TraceCheckSpWp]: Trace formula consists of 727 conjuncts, 57 conjunts are in the unsatisfiable core [2021-07-09 17:03:40,477 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-09 17:03:40,488 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2021-07-09 17:03:40,489 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 17:03:40,490 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 17:03:40,491 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-07-09 17:03:40,491 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:6, output treesize:5 [2021-07-09 17:03:40,507 INFO L354 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2021-07-09 17:03:40,507 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 17 treesize of output 21 [2021-07-09 17:03:40,508 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 17:03:40,512 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 17:03:40,513 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-07-09 17:03:40,513 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:17, output treesize:15 [2021-07-09 17:03:40,568 INFO L354 Elim1Store]: treesize reduction 36, result has 34.5 percent of original size [2021-07-09 17:03:40,568 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 22 treesize of output 33 [2021-07-09 17:03:40,570 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 17:03:40,578 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 17:03:40,579 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2021-07-09 17:03:40,579 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:26, output treesize:28 [2021-07-09 17:03:40,850 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2021-07-09 17:03:40,851 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 17:03:40,861 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 17:03:40,862 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2021-07-09 17:03:40,862 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:41, output treesize:37 [2021-07-09 17:03:41,160 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 20 [2021-07-09 17:03:41,161 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 17:03:41,173 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 17:03:41,174 INFO L550 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2021-07-09 17:03:41,174 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:48, output treesize:37 [2021-07-09 17:03:41,618 INFO L354 Elim1Store]: treesize reduction 54, result has 34.1 percent of original size [2021-07-09 17:03:41,618 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 27 treesize of output 45 [2021-07-09 17:03:41,620 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 17:03:41,638 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 17:03:41,639 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2021-07-09 17:03:41,640 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:48, output treesize:54 [2021-07-09 17:03:41,741 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 5 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 13 [2021-07-09 17:03:41,742 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 17:03:41,759 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 17:03:41,760 INFO L550 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2021-07-09 17:03:41,760 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:69, output treesize:54 [2021-07-09 17:03:41,782 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 33 [2021-07-09 17:03:41,784 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 17:03:41,809 INFO L628 ElimStorePlain]: treesize reduction 12, result has 77.8 percent of original size [2021-07-09 17:03:41,811 INFO L550 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-1 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2021-07-09 17:03:41,811 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:60, output treesize:42 [2021-07-09 17:03:42,122 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 20 [2021-07-09 17:03:42,123 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 17:03:42,135 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 17:03:42,136 INFO L550 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2021-07-09 17:03:42,136 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 4 variables, input treesize:53, output treesize:42 [2021-07-09 17:03:42,343 WARN L313 ript$VariableManager]: TermVariabe |thread_usbThread1of1ForFork0_ieee80211_deregister_hw_~#status~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 17:03:42,393 INFO L354 Elim1Store]: treesize reduction 96, result has 27.8 percent of original size [2021-07-09 17:03:42,393 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 3 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 11 case distinctions, treesize of input 32 treesize of output 57 [2021-07-09 17:03:42,394 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 17:03:42,412 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 17:03:42,414 INFO L550 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2021-07-09 17:03:42,414 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:53, output treesize:54 [2021-07-09 17:03:42,551 INFO L354 Elim1Store]: treesize reduction 72, result has 33.9 percent of original size [2021-07-09 17:03:42,551 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 6 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 8 case distinctions, treesize of input 32 treesize of output 57 [2021-07-09 17:03:42,553 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 17:03:42,575 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 17:03:42,578 INFO L550 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-1 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2021-07-09 17:03:42,579 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:65, output treesize:75 [2021-07-09 17:03:42,680 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 7 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 13 [2021-07-09 17:03:42,680 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 17:03:42,703 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 17:03:42,706 INFO L550 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2021-07-09 17:03:42,706 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 4 variables, input treesize:90, output treesize:75 [2021-07-09 17:03:42,739 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 10 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 41 [2021-07-09 17:03:42,740 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 17:03:42,777 INFO L628 ElimStorePlain]: treesize reduction 16, result has 78.7 percent of original size [2021-07-09 17:03:42,781 INFO L550 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-1 vars, End of recursive call: 3 dim-0 vars, and 1 xjuncts. [2021-07-09 17:03:42,781 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 4 variables, input treesize:81, output treesize:59 [2021-07-09 17:03:43,195 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 5 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 20 [2021-07-09 17:03:43,196 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 17:03:43,213 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 17:03:43,217 INFO L550 ElimStorePlain]: Start of recursive call 1: 4 dim-0 vars, 1 dim-2 vars, End of recursive call: 3 dim-0 vars, and 1 xjuncts. [2021-07-09 17:03:43,217 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 5 variables, input treesize:70, output treesize:59 [2021-07-09 17:03:43,580 WARN L313 ript$VariableManager]: TermVariabe |thread_usbThread1of1ForFork0_ieee80211_deregister_hw_~#status~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 17:03:43,646 INFO L354 Elim1Store]: treesize reduction 122, result has 27.4 percent of original size [2021-07-09 17:03:43,646 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 6 select indices, 6 select index equivalence classes, 6 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 14 case distinctions, treesize of input 37 treesize of output 69 [2021-07-09 17:03:43,648 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 17:03:43,674 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 17:03:43,678 INFO L550 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-1 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2021-07-09 17:03:43,678 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 4 variables, input treesize:70, output treesize:75 [2021-07-09 17:03:43,795 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 7 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 13 [2021-07-09 17:03:43,795 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 17:03:43,818 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 17:03:43,821 INFO L550 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2021-07-09 17:03:43,821 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 4 variables, input treesize:90, output treesize:75 [2021-07-09 17:03:43,854 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 10 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 41 [2021-07-09 17:03:43,855 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 17:03:43,898 INFO L628 ElimStorePlain]: treesize reduction 16, result has 78.7 percent of original size [2021-07-09 17:03:43,902 INFO L550 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-1 vars, End of recursive call: 3 dim-0 vars, and 1 xjuncts. [2021-07-09 17:03:43,902 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 4 variables, input treesize:81, output treesize:59 [2021-07-09 17:03:44,232 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 5 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 20 [2021-07-09 17:03:44,233 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 17:03:44,252 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 17:03:44,257 INFO L550 ElimStorePlain]: Start of recursive call 1: 6 dim-0 vars, 1 dim-2 vars, End of recursive call: 4 dim-0 vars, and 1 xjuncts. [2021-07-09 17:03:44,258 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 7 variables, input treesize:70, output treesize:59 [2021-07-09 17:03:44,839 WARN L313 ript$VariableManager]: TermVariabe |thread_usbThread1of1ForFork0_ieee80211_deregister_hw_~#status~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 17:03:44,883 INFO L354 Elim1Store]: treesize reduction 40, result has 45.2 percent of original size [2021-07-09 17:03:44,884 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 6 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 9 case distinctions, treesize of input 31 treesize of output 51 [2021-07-09 17:03:44,886 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 17:03:44,907 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 17:03:44,908 INFO L550 ElimStorePlain]: Start of recursive call 1: 4 dim-0 vars, 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-07-09 17:03:44,909 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 5 variables, input treesize:64, output treesize:14 [2021-07-09 17:03:44,956 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 13 [2021-07-09 17:03:44,956 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 17:03:44,960 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 17:03:44,961 INFO L550 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-07-09 17:03:44,961 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:29, output treesize:9 [2021-07-09 17:03:45,065 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 9 [2021-07-09 17:03:45,066 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 17:03:45,067 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 17:03:45,067 INFO L550 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-07-09 17:03:45,067 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:17, output treesize:5 [2021-07-09 17:03:45,174 INFO L134 CoverageAnalysis]: Checked inductivity of 716 backedges. 23 proven. 687 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2021-07-09 17:03:45,174 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [734187038] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-09 17:03:45,174 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-07-09 17:03:45,174 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [23, 26] total 46 [2021-07-09 17:03:45,174 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [673501351] [2021-07-09 17:03:45,175 INFO L462 AbstractCegarLoop]: Interpolant automaton has 46 states [2021-07-09 17:03:45,175 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 17:03:45,175 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 46 interpolants. [2021-07-09 17:03:45,175 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=214, Invalid=1856, Unknown=0, NotChecked=0, Total=2070 [2021-07-09 17:03:45,175 INFO L87 Difference]: Start difference. First operand 50531 states and 149936 transitions. Second operand has 46 states, 46 states have (on average 16.23913043478261) internal successors, (747), 46 states have internal predecessors, (747), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 17:03:45,999 WARN L205 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 37 DAG size of output: 37 [2021-07-09 17:03:50,893 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 17:03:50,893 INFO L93 Difference]: Finished difference Result 66626 states and 189298 transitions. [2021-07-09 17:03:50,893 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 49 states. [2021-07-09 17:03:50,894 INFO L78 Accepts]: Start accepts. Automaton has has 46 states, 46 states have (on average 16.23913043478261) internal successors, (747), 46 states have internal predecessors, (747), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 389 [2021-07-09 17:03:50,894 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 17:03:51,032 INFO L225 Difference]: With dead ends: 66626 [2021-07-09 17:03:51,032 INFO L226 Difference]: Without dead ends: 66626 [2021-07-09 17:03:51,033 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 467 GetRequests, 372 SyntacticMatches, 8 SemanticMatches, 87 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2121 ImplicationChecksByTransitivity, 4271.2ms TimeCoverageRelationStatistics Valid=767, Invalid=7065, Unknown=0, NotChecked=0, Total=7832 [2021-07-09 17:03:51,179 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 66626 states. [2021-07-09 17:03:52,011 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 66626 to 50534. [2021-07-09 17:03:52,079 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 50534 states, 50532 states have (on average 2.9672682656534475) internal successors, (149942), 50533 states have internal predecessors, (149942), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 17:03:52,203 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50534 states to 50534 states and 149942 transitions. [2021-07-09 17:03:52,203 INFO L78 Accepts]: Start accepts. Automaton has 50534 states and 149942 transitions. Word has length 389 [2021-07-09 17:03:52,203 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 17:03:52,203 INFO L482 AbstractCegarLoop]: Abstraction has 50534 states and 149942 transitions. [2021-07-09 17:03:52,204 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 46 states, 46 states have (on average 16.23913043478261) internal successors, (747), 46 states have internal predecessors, (747), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 17:03:52,204 INFO L276 IsEmpty]: Start isEmpty. Operand 50534 states and 149942 transitions. [2021-07-09 17:03:52,296 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 390 [2021-07-09 17:03:52,296 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 17:03:52,296 INFO L508 BasicCegarLoop]: trace histogram [9, 9, 9, 8, 8, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-09 17:03:52,514 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 59 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable107 [2021-07-09 17:03:52,514 INFO L430 AbstractCegarLoop]: === Iteration 68 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-09 17:03:52,514 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 17:03:52,514 INFO L82 PathProgramCache]: Analyzing trace with hash -1832890175, now seen corresponding path program 59 times [2021-07-09 17:03:52,515 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 17:03:52,515 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [565349113] [2021-07-09 17:03:52,515 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 17:03:52,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 17:03:53,885 INFO L134 CoverageAnalysis]: Checked inductivity of 716 backedges. 18 proven. 698 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-09 17:03:53,885 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 17:03:53,885 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [565349113] [2021-07-09 17:03:53,885 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [565349113] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-09 17:03:53,886 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [248063536] [2021-07-09 17:03:53,886 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 60 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 60 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-09 17:03:54,228 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 8 check-sat command(s) [2021-07-09 17:03:54,228 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-07-09 17:03:54,231 INFO L263 TraceCheckSpWp]: Trace formula consists of 727 conjuncts, 60 conjunts are in the unsatisfiable core [2021-07-09 17:03:54,234 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-09 17:03:54,245 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 9 [2021-07-09 17:03:54,246 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 17:03:54,247 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 17:03:54,248 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-07-09 17:03:54,272 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:12, output treesize:5 [2021-07-09 17:03:54,290 INFO L354 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2021-07-09 17:03:54,290 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 17 treesize of output 21 [2021-07-09 17:03:54,291 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 17:03:54,295 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 17:03:54,296 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-07-09 17:03:54,296 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:17, output treesize:15 [2021-07-09 17:03:54,371 INFO L354 Elim1Store]: treesize reduction 36, result has 34.5 percent of original size [2021-07-09 17:03:54,371 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 22 treesize of output 33 [2021-07-09 17:03:54,373 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 17:03:54,381 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 17:03:54,382 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2021-07-09 17:03:54,537 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:26, output treesize:28 [2021-07-09 17:03:54,815 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2021-07-09 17:03:54,815 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 17:03:54,825 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 17:03:54,826 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2021-07-09 17:03:54,826 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:41, output treesize:37 [2021-07-09 17:03:55,043 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 20 [2021-07-09 17:03:55,044 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 17:03:55,055 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 17:03:55,057 INFO L550 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2021-07-09 17:03:55,057 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:48, output treesize:37 [2021-07-09 17:03:55,503 INFO L354 Elim1Store]: treesize reduction 54, result has 34.1 percent of original size [2021-07-09 17:03:55,503 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 27 treesize of output 45 [2021-07-09 17:03:55,505 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 17:03:55,523 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 17:03:55,525 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2021-07-09 17:03:55,525 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:48, output treesize:54 [2021-07-09 17:03:55,629 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 5 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 13 [2021-07-09 17:03:55,629 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 17:03:55,646 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 17:03:55,647 INFO L550 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2021-07-09 17:03:55,647 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:69, output treesize:54 [2021-07-09 17:03:55,670 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 33 [2021-07-09 17:03:55,672 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 17:03:55,697 INFO L628 ElimStorePlain]: treesize reduction 12, result has 77.8 percent of original size [2021-07-09 17:03:55,699 INFO L550 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-1 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2021-07-09 17:03:55,699 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:60, output treesize:42 [2021-07-09 17:03:56,017 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 20 [2021-07-09 17:03:56,018 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 17:03:56,029 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 17:03:56,031 INFO L550 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2021-07-09 17:03:56,031 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 4 variables, input treesize:53, output treesize:42 [2021-07-09 17:03:56,248 WARN L313 ript$VariableManager]: TermVariabe |thread_usbThread1of1ForFork0_ieee80211_deregister_hw_~#status~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 17:03:56,305 INFO L354 Elim1Store]: treesize reduction 96, result has 27.8 percent of original size [2021-07-09 17:03:56,306 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 3 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 11 case distinctions, treesize of input 32 treesize of output 57 [2021-07-09 17:03:56,307 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 17:03:56,329 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 17:03:56,331 INFO L550 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2021-07-09 17:03:56,331 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:53, output treesize:54 [2021-07-09 17:03:56,484 INFO L354 Elim1Store]: treesize reduction 72, result has 33.9 percent of original size [2021-07-09 17:03:56,484 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 6 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 8 case distinctions, treesize of input 32 treesize of output 57 [2021-07-09 17:03:56,486 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 17:03:56,513 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 17:03:56,517 INFO L550 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-1 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2021-07-09 17:03:56,518 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:65, output treesize:75 [2021-07-09 17:03:56,629 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 7 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 13 [2021-07-09 17:03:56,630 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 17:03:56,656 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 17:03:56,659 INFO L550 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2021-07-09 17:03:56,659 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 4 variables, input treesize:90, output treesize:75 [2021-07-09 17:03:56,697 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 10 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 41 [2021-07-09 17:03:56,699 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 17:03:56,739 INFO L628 ElimStorePlain]: treesize reduction 16, result has 78.7 percent of original size [2021-07-09 17:03:56,742 INFO L550 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-1 vars, End of recursive call: 3 dim-0 vars, and 1 xjuncts. [2021-07-09 17:03:56,742 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 4 variables, input treesize:81, output treesize:59 [2021-07-09 17:03:57,206 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 5 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 20 [2021-07-09 17:03:57,207 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 17:03:57,227 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 17:03:57,231 INFO L550 ElimStorePlain]: Start of recursive call 1: 4 dim-0 vars, 1 dim-2 vars, End of recursive call: 3 dim-0 vars, and 1 xjuncts. [2021-07-09 17:03:57,231 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 5 variables, input treesize:70, output treesize:59 [2021-07-09 17:03:57,661 WARN L313 ript$VariableManager]: TermVariabe |thread_usbThread1of1ForFork0_ieee80211_deregister_hw_~#status~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 17:03:57,732 INFO L354 Elim1Store]: treesize reduction 122, result has 27.4 percent of original size [2021-07-09 17:03:57,732 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 6 select indices, 6 select index equivalence classes, 6 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 14 case distinctions, treesize of input 37 treesize of output 69 [2021-07-09 17:03:57,734 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 17:03:57,764 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 17:03:57,769 INFO L550 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-1 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2021-07-09 17:03:57,769 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 4 variables, input treesize:70, output treesize:75 [2021-07-09 17:03:57,898 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 7 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 13 [2021-07-09 17:03:57,899 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 17:03:57,925 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 17:03:57,929 INFO L550 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2021-07-09 17:03:57,929 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 4 variables, input treesize:90, output treesize:75 [2021-07-09 17:03:57,966 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 10 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 41 [2021-07-09 17:03:57,968 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 17:03:58,007 INFO L628 ElimStorePlain]: treesize reduction 16, result has 78.7 percent of original size [2021-07-09 17:03:58,011 INFO L550 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-1 vars, End of recursive call: 3 dim-0 vars, and 1 xjuncts. [2021-07-09 17:03:58,011 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 4 variables, input treesize:81, output treesize:59 [2021-07-09 17:03:58,363 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 5 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 20 [2021-07-09 17:03:58,364 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 17:03:58,384 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 17:03:58,388 INFO L550 ElimStorePlain]: Start of recursive call 1: 4 dim-0 vars, 1 dim-2 vars, End of recursive call: 3 dim-0 vars, and 1 xjuncts. [2021-07-09 17:03:58,388 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 5 variables, input treesize:70, output treesize:59 [2021-07-09 17:03:58,810 WARN L313 ript$VariableManager]: TermVariabe |thread_usbThread1of1ForFork0_ieee80211_deregister_hw_~#status~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 17:03:58,854 INFO L354 Elim1Store]: treesize reduction 40, result has 45.2 percent of original size [2021-07-09 17:03:58,854 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 6 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 9 case distinctions, treesize of input 31 treesize of output 51 [2021-07-09 17:03:58,857 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 17:03:58,879 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 17:03:58,880 INFO L550 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-07-09 17:03:58,880 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 4 variables, input treesize:64, output treesize:22 [2021-07-09 17:03:58,934 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 13 [2021-07-09 17:03:58,935 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 17:03:58,941 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 17:03:58,942 INFO L550 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-07-09 17:03:58,942 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:37, output treesize:14 [2021-07-09 17:03:59,022 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 17:03:59,023 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 25 [2021-07-09 17:03:59,024 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 17:03:59,029 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 17:03:59,031 INFO L550 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2021-07-09 17:03:59,031 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:50, output treesize:30 [2021-07-09 17:03:59,221 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 17 [2021-07-09 17:03:59,222 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 17:03:59,227 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 17:03:59,228 INFO L550 ElimStorePlain]: Start of recursive call 1: 4 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-07-09 17:03:59,228 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 5 variables, input treesize:45, output treesize:11 [2021-07-09 17:03:59,314 INFO L134 CoverageAnalysis]: Checked inductivity of 716 backedges. 23 proven. 687 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2021-07-09 17:03:59,314 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [248063536] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-09 17:03:59,314 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-07-09 17:03:59,314 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [25, 26] total 46 [2021-07-09 17:03:59,314 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [949675772] [2021-07-09 17:03:59,314 INFO L462 AbstractCegarLoop]: Interpolant automaton has 46 states [2021-07-09 17:03:59,315 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 17:03:59,315 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 46 interpolants. [2021-07-09 17:03:59,315 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=214, Invalid=1856, Unknown=0, NotChecked=0, Total=2070 [2021-07-09 17:03:59,315 INFO L87 Difference]: Start difference. First operand 50534 states and 149942 transitions. Second operand has 46 states, 46 states have (on average 15.826086956521738) internal successors, (728), 46 states have internal predecessors, (728), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 17:04:00,194 WARN L205 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 37 DAG size of output: 37 [2021-07-09 17:04:16,224 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 17:04:16,224 INFO L93 Difference]: Finished difference Result 75741 states and 215889 transitions. [2021-07-09 17:04:16,225 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 67 states. [2021-07-09 17:04:16,225 INFO L78 Accepts]: Start accepts. Automaton has has 46 states, 46 states have (on average 15.826086956521738) internal successors, (728), 46 states have internal predecessors, (728), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 389 [2021-07-09 17:04:16,225 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 17:04:16,375 INFO L225 Difference]: With dead ends: 75741 [2021-07-09 17:04:16,376 INFO L226 Difference]: Without dead ends: 75741 [2021-07-09 17:04:16,376 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 487 GetRequests, 372 SyntacticMatches, 10 SemanticMatches, 105 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3564 ImplicationChecksByTransitivity, 4858.5ms TimeCoverageRelationStatistics Valid=1010, Invalid=10332, Unknown=0, NotChecked=0, Total=11342 [2021-07-09 17:04:16,533 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 75741 states. [2021-07-09 17:04:17,444 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 75741 to 52204. [2021-07-09 17:04:17,512 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 52204 states, 52202 states have (on average 2.964196774069959) internal successors, (154737), 52203 states have internal predecessors, (154737), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 17:04:17,631 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52204 states to 52204 states and 154737 transitions. [2021-07-09 17:04:17,631 INFO L78 Accepts]: Start accepts. Automaton has 52204 states and 154737 transitions. Word has length 389 [2021-07-09 17:04:17,632 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 17:04:17,632 INFO L482 AbstractCegarLoop]: Abstraction has 52204 states and 154737 transitions. [2021-07-09 17:04:17,632 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 46 states, 46 states have (on average 15.826086956521738) internal successors, (728), 46 states have internal predecessors, (728), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 17:04:17,632 INFO L276 IsEmpty]: Start isEmpty. Operand 52204 states and 154737 transitions. [2021-07-09 17:04:17,702 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 390 [2021-07-09 17:04:17,702 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 17:04:17,702 INFO L508 BasicCegarLoop]: trace histogram [9, 9, 9, 8, 8, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-09 17:04:17,916 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable109,60 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-09 17:04:17,917 INFO L430 AbstractCegarLoop]: === Iteration 69 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-09 17:04:17,918 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 17:04:17,918 INFO L82 PathProgramCache]: Analyzing trace with hash 1038266995, now seen corresponding path program 60 times [2021-07-09 17:04:17,918 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 17:04:17,918 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1986413843] [2021-07-09 17:04:17,919 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 17:04:17,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 17:04:19,031 WARN L205 SmtUtils]: Spent 140.00 ms on a formula simplification. DAG size of input: 41 DAG size of output: 18 [2021-07-09 17:04:19,094 INFO L134 CoverageAnalysis]: Checked inductivity of 716 backedges. 12 proven. 692 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2021-07-09 17:04:19,095 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 17:04:19,095 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1986413843] [2021-07-09 17:04:19,095 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1986413843] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-09 17:04:19,095 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1067642395] [2021-07-09 17:04:19,095 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 61 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 61 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-09 17:04:19,429 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 8 check-sat command(s) [2021-07-09 17:04:19,429 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-07-09 17:04:19,432 INFO L263 TraceCheckSpWp]: Trace formula consists of 727 conjuncts, 57 conjunts are in the unsatisfiable core [2021-07-09 17:04:19,435 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-09 17:04:19,446 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2021-07-09 17:04:19,446 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 17:04:19,447 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 17:04:19,448 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-07-09 17:04:19,448 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:6, output treesize:5 [2021-07-09 17:04:19,463 INFO L354 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2021-07-09 17:04:19,464 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 17 treesize of output 21 [2021-07-09 17:04:19,465 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 17:04:19,469 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 17:04:19,469 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-07-09 17:04:19,469 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:17, output treesize:15 [2021-07-09 17:04:19,523 INFO L354 Elim1Store]: treesize reduction 36, result has 34.5 percent of original size [2021-07-09 17:04:19,523 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 22 treesize of output 33 [2021-07-09 17:04:19,524 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 17:04:19,532 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 17:04:19,533 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2021-07-09 17:04:19,533 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:26, output treesize:28 [2021-07-09 17:04:19,790 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2021-07-09 17:04:19,791 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 17:04:19,799 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 17:04:19,800 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2021-07-09 17:04:19,800 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:41, output treesize:37 [2021-07-09 17:04:20,001 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 20 [2021-07-09 17:04:20,002 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 17:04:20,013 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 17:04:20,015 INFO L550 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2021-07-09 17:04:20,015 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:48, output treesize:37 [2021-07-09 17:04:20,464 INFO L354 Elim1Store]: treesize reduction 54, result has 34.1 percent of original size [2021-07-09 17:04:20,464 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 27 treesize of output 45 [2021-07-09 17:04:20,466 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 17:04:20,483 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 17:04:20,484 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2021-07-09 17:04:20,485 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:48, output treesize:54 [2021-07-09 17:04:20,584 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 5 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 13 [2021-07-09 17:04:20,584 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 17:04:20,600 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 17:04:20,601 INFO L550 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2021-07-09 17:04:20,601 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:69, output treesize:54 [2021-07-09 17:04:20,624 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 33 [2021-07-09 17:04:20,625 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 17:04:20,650 INFO L628 ElimStorePlain]: treesize reduction 12, result has 77.8 percent of original size [2021-07-09 17:04:20,651 INFO L550 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-1 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2021-07-09 17:04:20,651 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:60, output treesize:42 [2021-07-09 17:04:20,956 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 20 [2021-07-09 17:04:20,957 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 17:04:20,970 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 17:04:20,971 INFO L550 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2021-07-09 17:04:20,972 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 4 variables, input treesize:53, output treesize:42 [2021-07-09 17:04:21,198 WARN L313 ript$VariableManager]: TermVariabe |thread_usbThread1of1ForFork0_ieee80211_deregister_hw_~#status~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 17:04:21,251 INFO L354 Elim1Store]: treesize reduction 96, result has 27.8 percent of original size [2021-07-09 17:04:21,251 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 3 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 11 case distinctions, treesize of input 32 treesize of output 57 [2021-07-09 17:04:21,253 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 17:04:21,271 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 17:04:21,273 INFO L550 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2021-07-09 17:04:21,273 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:53, output treesize:54 [2021-07-09 17:04:21,375 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 5 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 13 [2021-07-09 17:04:21,376 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 17:04:21,391 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 17:04:21,393 INFO L550 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2021-07-09 17:04:21,393 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:69, output treesize:54 [2021-07-09 17:04:21,414 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 33 [2021-07-09 17:04:21,416 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 17:04:21,439 INFO L628 ElimStorePlain]: treesize reduction 12, result has 77.8 percent of original size [2021-07-09 17:04:21,440 INFO L550 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-1 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2021-07-09 17:04:21,440 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:60, output treesize:42 [2021-07-09 17:04:21,669 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 20 [2021-07-09 17:04:21,670 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 17:04:21,683 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 17:04:21,685 INFO L550 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2021-07-09 17:04:21,685 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 4 variables, input treesize:53, output treesize:42 [2021-07-09 17:04:21,746 INFO L354 Elim1Store]: treesize reduction 96, result has 27.8 percent of original size [2021-07-09 17:04:21,747 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 3 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 11 case distinctions, treesize of input 32 treesize of output 57 [2021-07-09 17:04:21,748 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 17:04:21,770 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 17:04:21,777 INFO L550 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-1 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2021-07-09 17:04:21,777 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 4 variables, input treesize:53, output treesize:54 [2021-07-09 17:04:22,250 INFO L354 Elim1Store]: treesize reduction 72, result has 33.9 percent of original size [2021-07-09 17:04:22,250 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 6 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 8 case distinctions, treesize of input 32 treesize of output 57 [2021-07-09 17:04:22,252 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 17:04:22,275 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 17:04:22,278 INFO L550 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-1 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2021-07-09 17:04:22,279 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:65, output treesize:75 [2021-07-09 17:04:22,405 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 7 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 13 [2021-07-09 17:04:22,405 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 17:04:22,431 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 17:04:22,434 INFO L550 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2021-07-09 17:04:22,434 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 4 variables, input treesize:90, output treesize:75 [2021-07-09 17:04:22,470 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 10 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 41 [2021-07-09 17:04:22,472 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 17:04:22,510 INFO L628 ElimStorePlain]: treesize reduction 16, result has 78.7 percent of original size [2021-07-09 17:04:22,514 INFO L550 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-1 vars, End of recursive call: 3 dim-0 vars, and 1 xjuncts. [2021-07-09 17:04:22,514 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 4 variables, input treesize:81, output treesize:59 [2021-07-09 17:04:22,968 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 5 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 20 [2021-07-09 17:04:22,969 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 17:04:22,989 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 17:04:22,994 INFO L550 ElimStorePlain]: Start of recursive call 1: 6 dim-0 vars, 1 dim-2 vars, End of recursive call: 4 dim-0 vars, and 1 xjuncts. [2021-07-09 17:04:22,994 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 7 variables, input treesize:70, output treesize:59 [2021-07-09 17:04:23,570 WARN L313 ript$VariableManager]: TermVariabe |thread_usbThread1of1ForFork0_ieee80211_deregister_hw_~#status~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 17:04:23,614 INFO L354 Elim1Store]: treesize reduction 40, result has 45.2 percent of original size [2021-07-09 17:04:23,614 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 6 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 9 case distinctions, treesize of input 31 treesize of output 51 [2021-07-09 17:04:23,617 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 17:04:23,638 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 17:04:23,639 INFO L550 ElimStorePlain]: Start of recursive call 1: 4 dim-0 vars, 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-07-09 17:04:23,639 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 5 variables, input treesize:64, output treesize:14 [2021-07-09 17:04:23,686 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 13 [2021-07-09 17:04:23,687 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 17:04:23,690 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 17:04:23,691 INFO L550 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-07-09 17:04:23,691 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:29, output treesize:9 [2021-07-09 17:04:23,729 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 9 [2021-07-09 17:04:23,729 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 17:04:23,731 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 17:04:23,731 INFO L550 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-07-09 17:04:23,731 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:17, output treesize:5 [2021-07-09 17:04:23,907 INFO L134 CoverageAnalysis]: Checked inductivity of 716 backedges. 23 proven. 687 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2021-07-09 17:04:23,907 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1067642395] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-09 17:04:23,907 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-07-09 17:04:23,908 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [22, 26] total 45 [2021-07-09 17:04:23,910 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [135007296] [2021-07-09 17:04:23,910 INFO L462 AbstractCegarLoop]: Interpolant automaton has 45 states [2021-07-09 17:04:23,910 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 17:04:23,910 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 45 interpolants. [2021-07-09 17:04:23,910 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=213, Invalid=1767, Unknown=0, NotChecked=0, Total=1980 [2021-07-09 17:04:23,911 INFO L87 Difference]: Start difference. First operand 52204 states and 154737 transitions. Second operand has 45 states, 45 states have (on average 16.488888888888887) internal successors, (742), 45 states have internal predecessors, (742), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 17:04:24,787 WARN L205 SmtUtils]: Spent 123.00 ms on a formula simplification. DAG size of input: 37 DAG size of output: 37 [2021-07-09 17:04:28,919 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 17:04:28,919 INFO L93 Difference]: Finished difference Result 65452 states and 186299 transitions. [2021-07-09 17:04:28,919 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2021-07-09 17:04:28,920 INFO L78 Accepts]: Start accepts. Automaton has has 45 states, 45 states have (on average 16.488888888888887) internal successors, (742), 45 states have internal predecessors, (742), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 389 [2021-07-09 17:04:28,920 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 17:04:29,062 INFO L225 Difference]: With dead ends: 65452 [2021-07-09 17:04:29,062 INFO L226 Difference]: Without dead ends: 65452 [2021-07-09 17:04:29,062 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 462 GetRequests, 373 SyntacticMatches, 8 SemanticMatches, 81 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1873 ImplicationChecksByTransitivity, 3764.9ms TimeCoverageRelationStatistics Valid=701, Invalid=6105, Unknown=0, NotChecked=0, Total=6806 [2021-07-09 17:04:29,204 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 65452 states. [2021-07-09 17:04:30,122 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 65452 to 53829. [2021-07-09 17:04:30,182 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 53829 states, 53827 states have (on average 2.9671168744310474) internal successors, (159711), 53828 states have internal predecessors, (159711), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 17:04:30,303 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53829 states to 53829 states and 159711 transitions. [2021-07-09 17:04:30,303 INFO L78 Accepts]: Start accepts. Automaton has 53829 states and 159711 transitions. Word has length 389 [2021-07-09 17:04:30,304 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 17:04:30,304 INFO L482 AbstractCegarLoop]: Abstraction has 53829 states and 159711 transitions. [2021-07-09 17:04:30,304 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 45 states, 45 states have (on average 16.488888888888887) internal successors, (742), 45 states have internal predecessors, (742), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 17:04:30,304 INFO L276 IsEmpty]: Start isEmpty. Operand 53829 states and 159711 transitions. [2021-07-09 17:04:30,392 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 390 [2021-07-09 17:04:30,392 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 17:04:30,393 INFO L508 BasicCegarLoop]: trace histogram [9, 9, 9, 8, 8, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-09 17:04:30,611 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 61 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable111 [2021-07-09 17:04:30,612 INFO L430 AbstractCegarLoop]: === Iteration 70 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-09 17:04:30,612 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 17:04:30,612 INFO L82 PathProgramCache]: Analyzing trace with hash -1757694735, now seen corresponding path program 61 times [2021-07-09 17:04:30,612 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 17:04:30,613 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2072037779] [2021-07-09 17:04:30,613 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 17:04:30,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 17:04:31,758 INFO L134 CoverageAnalysis]: Checked inductivity of 716 backedges. 12 proven. 692 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2021-07-09 17:04:31,758 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 17:04:31,758 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2072037779] [2021-07-09 17:04:31,758 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2072037779] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-09 17:04:31,758 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1052313907] [2021-07-09 17:04:31,759 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 62 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 62 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-09 17:04:31,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 17:04:31,944 INFO L263 TraceCheckSpWp]: Trace formula consists of 727 conjuncts, 60 conjunts are in the unsatisfiable core [2021-07-09 17:04:31,947 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-09 17:04:31,957 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2021-07-09 17:04:31,957 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 17:04:31,959 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 17:04:31,959 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-07-09 17:04:31,959 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:6, output treesize:5 [2021-07-09 17:04:31,973 INFO L354 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2021-07-09 17:04:31,974 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 17 treesize of output 21 [2021-07-09 17:04:31,975 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 17:04:31,978 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 17:04:31,979 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-07-09 17:04:31,979 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:17, output treesize:15 [2021-07-09 17:04:32,025 INFO L354 Elim1Store]: treesize reduction 36, result has 34.5 percent of original size [2021-07-09 17:04:32,025 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 22 treesize of output 33 [2021-07-09 17:04:32,026 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 17:04:32,033 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 17:04:32,034 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2021-07-09 17:04:32,034 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:26, output treesize:28 [2021-07-09 17:04:32,360 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2021-07-09 17:04:32,360 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 17:04:32,369 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 17:04:32,370 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2021-07-09 17:04:32,370 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:41, output treesize:37 [2021-07-09 17:04:32,621 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 25 [2021-07-09 17:04:32,622 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 17:04:32,634 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 17:04:32,635 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2021-07-09 17:04:32,635 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:57, output treesize:53 [2021-07-09 17:04:33,225 INFO L354 Elim1Store]: treesize reduction 54, result has 34.1 percent of original size [2021-07-09 17:04:33,225 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 27 treesize of output 45 [2021-07-09 17:04:33,226 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 17:04:33,244 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 17:04:33,246 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2021-07-09 17:04:33,246 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:68, output treesize:74 [2021-07-09 17:04:33,531 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 6 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 49 treesize of output 32 [2021-07-09 17:04:33,532 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 17:04:33,551 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 17:04:33,553 INFO L550 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2021-07-09 17:04:33,553 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:93, output treesize:78 [2021-07-09 17:04:33,575 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 33 [2021-07-09 17:04:33,576 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 17:04:33,610 INFO L628 ElimStorePlain]: treesize reduction 12, result has 84.6 percent of original size [2021-07-09 17:04:33,612 INFO L550 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-1 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2021-07-09 17:04:33,612 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:84, output treesize:66 [2021-07-09 17:04:33,952 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 45 treesize of output 32 [2021-07-09 17:04:33,953 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 17:04:33,967 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 17:04:33,969 INFO L550 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2021-07-09 17:04:33,969 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 4 variables, input treesize:77, output treesize:53 [2021-07-09 17:04:34,285 WARN L313 ript$VariableManager]: TermVariabe |thread_usbThread1of1ForFork0_ieee80211_deregister_hw_~#status~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 17:04:34,339 INFO L354 Elim1Store]: treesize reduction 96, result has 27.8 percent of original size [2021-07-09 17:04:34,339 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 3 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 11 case distinctions, treesize of input 32 treesize of output 57 [2021-07-09 17:04:34,341 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 17:04:34,365 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 17:04:34,367 INFO L550 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2021-07-09 17:04:34,367 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:64, output treesize:65 [2021-07-09 17:04:34,482 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 5 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 20 [2021-07-09 17:04:34,483 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 17:04:34,502 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 17:04:34,503 INFO L550 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2021-07-09 17:04:34,503 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:80, output treesize:61 [2021-07-09 17:04:34,604 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 33 [2021-07-09 17:04:34,605 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 17:04:34,636 INFO L628 ElimStorePlain]: treesize reduction 12, result has 81.5 percent of original size [2021-07-09 17:04:34,638 INFO L550 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-1 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2021-07-09 17:04:34,638 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:71, output treesize:53 [2021-07-09 17:04:34,885 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 27 [2021-07-09 17:04:34,886 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 17:04:34,902 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 17:04:34,903 INFO L550 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2021-07-09 17:04:34,903 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 4 variables, input treesize:64, output treesize:53 [2021-07-09 17:04:34,964 INFO L354 Elim1Store]: treesize reduction 96, result has 27.8 percent of original size [2021-07-09 17:04:34,964 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 3 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 11 case distinctions, treesize of input 32 treesize of output 57 [2021-07-09 17:04:34,966 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 17:04:34,989 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 17:04:34,996 INFO L550 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-1 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2021-07-09 17:04:34,996 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 4 variables, input treesize:64, output treesize:65 [2021-07-09 17:04:35,494 INFO L354 Elim1Store]: treesize reduction 72, result has 33.9 percent of original size [2021-07-09 17:04:35,494 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 6 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 8 case distinctions, treesize of input 32 treesize of output 57 [2021-07-09 17:04:35,496 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 17:04:35,524 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 17:04:35,528 INFO L550 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-1 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2021-07-09 17:04:35,528 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:76, output treesize:86 [2021-07-09 17:04:35,667 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 7 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 20 [2021-07-09 17:04:35,668 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 17:04:35,697 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 17:04:35,701 INFO L550 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2021-07-09 17:04:35,701 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 4 variables, input treesize:101, output treesize:82 [2021-07-09 17:04:35,826 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 10 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 41 [2021-07-09 17:04:35,827 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 17:04:35,878 INFO L628 ElimStorePlain]: treesize reduction 16, result has 81.4 percent of original size [2021-07-09 17:04:35,882 INFO L550 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-1 vars, End of recursive call: 3 dim-0 vars, and 1 xjuncts. [2021-07-09 17:04:35,882 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 4 variables, input treesize:92, output treesize:70 [2021-07-09 17:04:36,354 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 5 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 27 [2021-07-09 17:04:36,355 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 17:04:36,371 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 17:04:36,376 INFO L550 ElimStorePlain]: Start of recursive call 1: 6 dim-0 vars, 1 dim-2 vars, End of recursive call: 4 dim-0 vars, and 1 xjuncts. [2021-07-09 17:04:36,376 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 7 variables, input treesize:81, output treesize:66 [2021-07-09 17:04:36,939 WARN L313 ript$VariableManager]: TermVariabe |thread_usbThread1of1ForFork0_ieee80211_deregister_hw_~#status~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 17:04:36,988 INFO L354 Elim1Store]: treesize reduction 40, result has 45.2 percent of original size [2021-07-09 17:04:36,988 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 6 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 9 case distinctions, treesize of input 31 treesize of output 51 [2021-07-09 17:04:36,991 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 17:04:37,021 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 17:04:37,023 INFO L550 ElimStorePlain]: Start of recursive call 1: 4 dim-0 vars, 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-07-09 17:04:37,023 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 5 variables, input treesize:71, output treesize:21 [2021-07-09 17:04:37,082 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 13 [2021-07-09 17:04:37,083 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 17:04:37,088 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 17:04:37,089 INFO L550 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-07-09 17:04:37,089 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:36, output treesize:17 [2021-07-09 17:04:37,227 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 16 [2021-07-09 17:04:37,228 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 17:04:37,232 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 17:04:37,232 INFO L550 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-07-09 17:04:37,232 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:28, output treesize:13 [2021-07-09 17:04:37,374 INFO L134 CoverageAnalysis]: Checked inductivity of 716 backedges. 18 proven. 692 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2021-07-09 17:04:37,374 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1052313907] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-09 17:04:37,374 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-07-09 17:04:37,374 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [22, 31] total 50 [2021-07-09 17:04:37,375 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1574725877] [2021-07-09 17:04:37,375 INFO L462 AbstractCegarLoop]: Interpolant automaton has 50 states [2021-07-09 17:04:37,375 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 17:04:37,375 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 50 interpolants. [2021-07-09 17:04:37,375 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=249, Invalid=2201, Unknown=0, NotChecked=0, Total=2450 [2021-07-09 17:04:37,376 INFO L87 Difference]: Start difference. First operand 53829 states and 159711 transitions. Second operand has 50 states, 50 states have (on average 14.84) internal successors, (742), 50 states have internal predecessors, (742), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 17:04:39,068 WARN L205 SmtUtils]: Spent 147.00 ms on a formula simplification. DAG size of input: 44 DAG size of output: 44 [2021-07-09 17:04:40,404 WARN L205 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 53 [2021-07-09 17:04:45,046 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 17:04:45,046 INFO L93 Difference]: Finished difference Result 65537 states and 187343 transitions. [2021-07-09 17:04:45,047 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 52 states. [2021-07-09 17:04:45,047 INFO L78 Accepts]: Start accepts. Automaton has has 50 states, 50 states have (on average 14.84) internal successors, (742), 50 states have internal predecessors, (742), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 389 [2021-07-09 17:04:45,047 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 17:04:45,178 INFO L225 Difference]: With dead ends: 65537 [2021-07-09 17:04:45,178 INFO L226 Difference]: Without dead ends: 65537 [2021-07-09 17:04:45,179 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 470 GetRequests, 366 SyntacticMatches, 10 SemanticMatches, 94 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2678 ImplicationChecksByTransitivity, 5248.4ms TimeCoverageRelationStatistics Valid=834, Invalid=8286, Unknown=0, NotChecked=0, Total=9120 [2021-07-09 17:04:45,322 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 65537 states. [2021-07-09 17:04:46,152 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 65537 to 52204. [2021-07-09 17:04:46,217 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 52204 states, 52202 states have (on average 2.964196774069959) internal successors, (154737), 52203 states have internal predecessors, (154737), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 17:04:46,337 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52204 states to 52204 states and 154737 transitions. [2021-07-09 17:04:46,338 INFO L78 Accepts]: Start accepts. Automaton has 52204 states and 154737 transitions. Word has length 389 [2021-07-09 17:04:46,338 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 17:04:46,338 INFO L482 AbstractCegarLoop]: Abstraction has 52204 states and 154737 transitions. [2021-07-09 17:04:46,338 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 50 states, 50 states have (on average 14.84) internal successors, (742), 50 states have internal predecessors, (742), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 17:04:46,338 INFO L276 IsEmpty]: Start isEmpty. Operand 52204 states and 154737 transitions. [2021-07-09 17:04:46,752 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 390 [2021-07-09 17:04:46,752 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 17:04:46,752 INFO L508 BasicCegarLoop]: trace histogram [9, 9, 9, 8, 8, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-09 17:04:46,952 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 62 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable113 [2021-07-09 17:04:46,953 INFO L430 AbstractCegarLoop]: === Iteration 71 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-09 17:04:46,953 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 17:04:46,953 INFO L82 PathProgramCache]: Analyzing trace with hash -302534431, now seen corresponding path program 62 times [2021-07-09 17:04:46,953 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 17:04:46,953 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1181940597] [2021-07-09 17:04:46,953 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 17:04:47,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 17:04:47,610 WARN L205 SmtUtils]: Spent 224.00 ms on a formula simplification that was a NOOP. DAG size: 17 [2021-07-09 17:04:48,060 INFO L134 CoverageAnalysis]: Checked inductivity of 716 backedges. 12 proven. 692 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2021-07-09 17:04:48,061 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 17:04:48,061 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1181940597] [2021-07-09 17:04:48,061 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1181940597] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-09 17:04:48,061 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1562878874] [2021-07-09 17:04:48,061 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 63 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 63 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-09 17:04:48,257 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-07-09 17:04:48,257 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-07-09 17:04:48,261 INFO L263 TraceCheckSpWp]: Trace formula consists of 727 conjuncts, 57 conjunts are in the unsatisfiable core [2021-07-09 17:04:48,264 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-09 17:04:48,274 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2021-07-09 17:04:48,274 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 17:04:48,275 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 17:04:48,276 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-07-09 17:04:48,276 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:6, output treesize:5 [2021-07-09 17:04:48,290 INFO L354 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2021-07-09 17:04:48,290 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 17 treesize of output 21 [2021-07-09 17:04:48,291 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 17:04:48,295 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 17:04:48,295 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-07-09 17:04:48,296 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:17, output treesize:15 [2021-07-09 17:04:48,341 INFO L354 Elim1Store]: treesize reduction 36, result has 34.5 percent of original size [2021-07-09 17:04:48,342 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 22 treesize of output 33 [2021-07-09 17:04:48,343 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 17:04:48,350 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 17:04:48,351 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2021-07-09 17:04:48,351 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:26, output treesize:28 [2021-07-09 17:04:48,609 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2021-07-09 17:04:48,610 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 17:04:48,620 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 17:04:48,621 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2021-07-09 17:04:48,621 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:41, output treesize:37 [2021-07-09 17:04:48,831 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 20 [2021-07-09 17:04:48,832 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 17:04:48,843 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 17:04:48,845 INFO L550 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2021-07-09 17:04:48,845 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:48, output treesize:37 [2021-07-09 17:04:49,303 INFO L354 Elim1Store]: treesize reduction 54, result has 34.1 percent of original size [2021-07-09 17:04:49,303 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 27 treesize of output 45 [2021-07-09 17:04:49,305 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 17:04:49,322 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 17:04:49,324 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2021-07-09 17:04:49,324 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:48, output treesize:54 [2021-07-09 17:04:49,423 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 5 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 13 [2021-07-09 17:04:49,424 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 17:04:49,440 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 17:04:49,441 INFO L550 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2021-07-09 17:04:49,441 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:69, output treesize:54 [2021-07-09 17:04:49,463 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 33 [2021-07-09 17:04:49,465 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 17:04:49,490 INFO L628 ElimStorePlain]: treesize reduction 12, result has 77.8 percent of original size [2021-07-09 17:04:49,492 INFO L550 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-1 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2021-07-09 17:04:49,492 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:60, output treesize:42 [2021-07-09 17:04:49,789 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 20 [2021-07-09 17:04:49,790 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 17:04:49,803 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 17:04:49,805 INFO L550 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2021-07-09 17:04:49,805 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 4 variables, input treesize:53, output treesize:42 [2021-07-09 17:04:50,038 WARN L313 ript$VariableManager]: TermVariabe |thread_usbThread1of1ForFork0_ieee80211_deregister_hw_~#status~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 17:04:50,106 INFO L354 Elim1Store]: treesize reduction 96, result has 27.8 percent of original size [2021-07-09 17:04:50,106 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 3 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 11 case distinctions, treesize of input 32 treesize of output 57 [2021-07-09 17:04:50,108 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 17:04:50,127 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 17:04:50,129 INFO L550 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2021-07-09 17:04:50,129 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:53, output treesize:54 [2021-07-09 17:04:50,230 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 5 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 13 [2021-07-09 17:04:50,231 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 17:04:50,247 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 17:04:50,248 INFO L550 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2021-07-09 17:04:50,248 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:69, output treesize:54 [2021-07-09 17:04:50,271 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 33 [2021-07-09 17:04:50,272 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 17:04:50,296 INFO L628 ElimStorePlain]: treesize reduction 12, result has 77.8 percent of original size [2021-07-09 17:04:50,298 INFO L550 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-1 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2021-07-09 17:04:50,298 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:60, output treesize:42 [2021-07-09 17:04:50,527 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 20 [2021-07-09 17:04:50,528 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 17:04:50,541 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 17:04:50,543 INFO L550 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2021-07-09 17:04:50,543 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 4 variables, input treesize:53, output treesize:42 [2021-07-09 17:04:50,777 WARN L313 ript$VariableManager]: TermVariabe |thread_usbThread1of1ForFork0_ieee80211_deregister_hw_~#status~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 17:04:50,829 INFO L354 Elim1Store]: treesize reduction 96, result has 27.8 percent of original size [2021-07-09 17:04:50,829 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 3 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 11 case distinctions, treesize of input 32 treesize of output 57 [2021-07-09 17:04:50,831 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 17:04:50,850 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 17:04:50,852 INFO L550 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2021-07-09 17:04:50,852 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:53, output treesize:54 [2021-07-09 17:04:51,003 INFO L354 Elim1Store]: treesize reduction 72, result has 33.9 percent of original size [2021-07-09 17:04:51,003 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 6 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 8 case distinctions, treesize of input 32 treesize of output 57 [2021-07-09 17:04:51,005 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 17:04:51,032 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 17:04:51,036 INFO L550 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-1 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2021-07-09 17:04:51,036 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:65, output treesize:75 [2021-07-09 17:04:51,145 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 7 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 13 [2021-07-09 17:04:51,146 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 17:04:51,171 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 17:04:51,175 INFO L550 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2021-07-09 17:04:51,175 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 4 variables, input treesize:90, output treesize:75 [2021-07-09 17:04:51,220 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 10 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 41 [2021-07-09 17:04:51,221 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 17:04:51,258 INFO L628 ElimStorePlain]: treesize reduction 16, result has 78.7 percent of original size [2021-07-09 17:04:51,261 INFO L550 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-1 vars, End of recursive call: 3 dim-0 vars, and 1 xjuncts. [2021-07-09 17:04:51,261 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 4 variables, input treesize:81, output treesize:59 [2021-07-09 17:04:51,670 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 5 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 20 [2021-07-09 17:04:51,671 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 17:04:51,691 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 17:04:51,696 INFO L550 ElimStorePlain]: Start of recursive call 1: 6 dim-0 vars, 1 dim-2 vars, End of recursive call: 4 dim-0 vars, and 1 xjuncts. [2021-07-09 17:04:51,696 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 7 variables, input treesize:70, output treesize:59 [2021-07-09 17:04:52,293 WARN L313 ript$VariableManager]: TermVariabe |thread_usbThread1of1ForFork0_ieee80211_deregister_hw_~#status~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 17:04:52,339 INFO L354 Elim1Store]: treesize reduction 40, result has 45.2 percent of original size [2021-07-09 17:04:52,339 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 6 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 9 case distinctions, treesize of input 31 treesize of output 51 [2021-07-09 17:04:52,342 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 17:04:52,364 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 17:04:52,365 INFO L550 ElimStorePlain]: Start of recursive call 1: 4 dim-0 vars, 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-07-09 17:04:52,365 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 5 variables, input treesize:64, output treesize:14 [2021-07-09 17:04:52,413 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 13 [2021-07-09 17:04:52,414 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 17:04:52,418 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 17:04:52,419 INFO L550 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-07-09 17:04:52,419 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:29, output treesize:9 [2021-07-09 17:04:52,457 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 9 [2021-07-09 17:04:52,458 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 17:04:52,459 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 17:04:52,460 INFO L550 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-07-09 17:04:52,460 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:17, output treesize:5 [2021-07-09 17:04:52,630 INFO L134 CoverageAnalysis]: Checked inductivity of 716 backedges. 23 proven. 687 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2021-07-09 17:04:52,630 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1562878874] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-09 17:04:52,630 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-07-09 17:04:52,631 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [21, 26] total 44 [2021-07-09 17:04:52,631 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1807688409] [2021-07-09 17:04:52,631 INFO L462 AbstractCegarLoop]: Interpolant automaton has 44 states [2021-07-09 17:04:52,631 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 17:04:52,631 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 44 interpolants. [2021-07-09 17:04:52,631 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=211, Invalid=1681, Unknown=0, NotChecked=0, Total=1892 [2021-07-09 17:04:52,632 INFO L87 Difference]: Start difference. First operand 52204 states and 154737 transitions. Second operand has 44 states, 44 states have (on average 16.863636363636363) internal successors, (742), 44 states have internal predecessors, (742), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 17:04:53,674 WARN L205 SmtUtils]: Spent 124.00 ms on a formula simplification. DAG size of input: 37 DAG size of output: 37 [2021-07-09 17:04:58,720 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 17:04:58,720 INFO L93 Difference]: Finished difference Result 68710 states and 196181 transitions. [2021-07-09 17:04:58,721 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 47 states. [2021-07-09 17:04:58,721 INFO L78 Accepts]: Start accepts. Automaton has has 44 states, 44 states have (on average 16.863636363636363) internal successors, (742), 44 states have internal predecessors, (742), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 389 [2021-07-09 17:04:58,721 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 17:04:58,860 INFO L225 Difference]: With dead ends: 68710 [2021-07-09 17:04:58,861 INFO L226 Difference]: Without dead ends: 68710 [2021-07-09 17:04:58,861 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 465 GetRequests, 371 SyntacticMatches, 11 SemanticMatches, 83 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2000 ImplicationChecksByTransitivity, 3972.4ms TimeCoverageRelationStatistics Valid=740, Invalid=6400, Unknown=0, NotChecked=0, Total=7140 [2021-07-09 17:04:59,006 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 68710 states. [2021-07-09 17:05:00,044 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 68710 to 52204. [2021-07-09 17:05:00,105 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 52204 states, 52202 states have (on average 2.964196774069959) internal successors, (154737), 52203 states have internal predecessors, (154737), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 17:05:00,227 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52204 states to 52204 states and 154737 transitions. [2021-07-09 17:05:00,227 INFO L78 Accepts]: Start accepts. Automaton has 52204 states and 154737 transitions. Word has length 389 [2021-07-09 17:05:00,228 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 17:05:00,228 INFO L482 AbstractCegarLoop]: Abstraction has 52204 states and 154737 transitions. [2021-07-09 17:05:00,228 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 44 states, 44 states have (on average 16.863636363636363) internal successors, (742), 44 states have internal predecessors, (742), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 17:05:00,228 INFO L276 IsEmpty]: Start isEmpty. Operand 52204 states and 154737 transitions. [2021-07-09 17:05:00,301 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 390 [2021-07-09 17:05:00,302 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 17:05:00,302 INFO L508 BasicCegarLoop]: trace histogram [9, 9, 9, 8, 8, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-09 17:05:00,516 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 63 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable116 [2021-07-09 17:05:00,517 INFO L430 AbstractCegarLoop]: === Iteration 72 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-09 17:05:00,517 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 17:05:00,517 INFO L82 PathProgramCache]: Analyzing trace with hash 1196471135, now seen corresponding path program 63 times [2021-07-09 17:05:00,518 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 17:05:00,518 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1700071890] [2021-07-09 17:05:00,518 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 17:05:00,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 17:05:01,599 INFO L134 CoverageAnalysis]: Checked inductivity of 716 backedges. 18 proven. 692 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2021-07-09 17:05:01,600 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 17:05:01,600 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1700071890] [2021-07-09 17:05:01,600 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1700071890] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-09 17:05:01,600 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1503400742] [2021-07-09 17:05:01,600 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 64 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 64 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-09 17:05:02,073 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 8 check-sat command(s) [2021-07-09 17:05:02,074 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-07-09 17:05:02,077 INFO L263 TraceCheckSpWp]: Trace formula consists of 727 conjuncts, 55 conjunts are in the unsatisfiable core [2021-07-09 17:05:02,080 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-09 17:05:02,089 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2021-07-09 17:05:02,090 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 17:05:02,091 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 17:05:02,092 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-07-09 17:05:02,092 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:6, output treesize:5 [2021-07-09 17:05:02,106 INFO L354 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2021-07-09 17:05:02,106 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 17 treesize of output 21 [2021-07-09 17:05:02,108 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 17:05:02,111 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 17:05:02,112 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-07-09 17:05:02,112 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:17, output treesize:15 [2021-07-09 17:05:02,151 INFO L354 Elim1Store]: treesize reduction 28, result has 28.2 percent of original size [2021-07-09 17:05:02,151 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 17 treesize of output 22 [2021-07-09 17:05:02,152 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 17:05:02,157 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 17:05:02,157 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2021-07-09 17:05:02,157 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:21, output treesize:20 [2021-07-09 17:05:02,278 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2021-07-09 17:05:02,279 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 17:05:02,284 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 17:05:02,285 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-07-09 17:05:02,285 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:28, output treesize:24 [2021-07-09 17:05:02,367 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 20 [2021-07-09 17:05:02,368 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 17:05:02,374 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 17:05:02,375 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-07-09 17:05:02,375 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:35, output treesize:24 [2021-07-09 17:05:02,517 INFO L354 Elim1Store]: treesize reduction 36, result has 34.5 percent of original size [2021-07-09 17:05:02,518 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 22 treesize of output 33 [2021-07-09 17:05:02,519 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 17:05:02,528 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 17:05:02,528 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-07-09 17:05:02,528 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:35, output treesize:37 [2021-07-09 17:05:02,571 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 13 [2021-07-09 17:05:02,572 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 17:05:02,581 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 17:05:02,581 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-07-09 17:05:02,582 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:52, output treesize:37 [2021-07-09 17:05:02,591 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 25 [2021-07-09 17:05:02,593 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 17:05:02,607 INFO L628 ElimStorePlain]: treesize reduction 8, result has 78.4 percent of original size [2021-07-09 17:05:02,608 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2021-07-09 17:05:02,608 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:43, output treesize:29 [2021-07-09 17:05:02,802 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 20 [2021-07-09 17:05:02,803 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 17:05:02,811 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 17:05:02,812 INFO L550 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2021-07-09 17:05:02,812 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:40, output treesize:29 [2021-07-09 17:05:02,929 WARN L313 ript$VariableManager]: TermVariabe |thread_usbThread1of1ForFork0_ieee80211_deregister_hw_~#status~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 17:05:02,964 INFO L354 Elim1Store]: treesize reduction 70, result has 28.6 percent of original size [2021-07-09 17:05:02,965 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 1 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 8 case distinctions, treesize of input 27 treesize of output 45 [2021-07-09 17:05:02,966 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 17:05:02,978 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 17:05:02,979 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-07-09 17:05:02,980 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:40, output treesize:37 [2021-07-09 17:05:03,026 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 13 [2021-07-09 17:05:03,027 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 17:05:03,036 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 17:05:03,037 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-07-09 17:05:03,037 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:52, output treesize:37 [2021-07-09 17:05:03,047 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 25 [2021-07-09 17:05:03,048 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 17:05:03,062 INFO L628 ElimStorePlain]: treesize reduction 8, result has 78.4 percent of original size [2021-07-09 17:05:03,063 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2021-07-09 17:05:03,063 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:43, output treesize:29 [2021-07-09 17:05:03,201 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 20 [2021-07-09 17:05:03,202 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 17:05:03,210 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 17:05:03,211 INFO L550 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2021-07-09 17:05:03,211 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:40, output treesize:29 [2021-07-09 17:05:03,329 WARN L313 ript$VariableManager]: TermVariabe |thread_usbThread1of1ForFork0_ieee80211_deregister_hw_~#status~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 17:05:03,364 INFO L354 Elim1Store]: treesize reduction 70, result has 28.6 percent of original size [2021-07-09 17:05:03,365 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 1 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 8 case distinctions, treesize of input 27 treesize of output 45 [2021-07-09 17:05:03,366 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 17:05:03,378 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 17:05:03,380 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-07-09 17:05:03,380 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:40, output treesize:37 [2021-07-09 17:05:03,458 INFO L354 Elim1Store]: treesize reduction 54, result has 34.1 percent of original size [2021-07-09 17:05:03,458 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 27 treesize of output 45 [2021-07-09 17:05:03,459 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 17:05:03,477 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 17:05:03,479 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2021-07-09 17:05:03,479 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:48, output treesize:54 [2021-07-09 17:05:03,573 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 5 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 13 [2021-07-09 17:05:03,574 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 17:05:03,590 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 17:05:03,592 INFO L550 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2021-07-09 17:05:03,592 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:69, output treesize:54 [2021-07-09 17:05:03,615 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 33 [2021-07-09 17:05:03,616 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 17:05:03,644 INFO L628 ElimStorePlain]: treesize reduction 12, result has 77.8 percent of original size [2021-07-09 17:05:03,646 INFO L550 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-1 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2021-07-09 17:05:03,646 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:60, output treesize:42 [2021-07-09 17:05:03,971 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 20 [2021-07-09 17:05:03,972 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 17:05:03,985 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 17:05:03,989 INFO L550 ElimStorePlain]: Start of recursive call 1: 5 dim-0 vars, 1 dim-2 vars, End of recursive call: 3 dim-0 vars, and 1 xjuncts. [2021-07-09 17:05:03,989 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 6 variables, input treesize:53, output treesize:42 [2021-07-09 17:05:04,647 WARN L313 ript$VariableManager]: TermVariabe |thread_usbThread1of1ForFork0_ieee80211_deregister_hw_~#status~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 17:05:04,681 INFO L354 Elim1Store]: treesize reduction 32, result has 43.9 percent of original size [2021-07-09 17:05:04,682 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 3 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 7 case distinctions, treesize of input 26 treesize of output 40 [2021-07-09 17:05:04,684 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 17:05:04,698 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 17:05:04,699 INFO L550 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-07-09 17:05:04,699 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 4 variables, input treesize:47, output treesize:14 [2021-07-09 17:05:04,745 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 13 [2021-07-09 17:05:04,746 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 17:05:04,750 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 17:05:04,751 INFO L550 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-07-09 17:05:04,751 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:29, output treesize:9 [2021-07-09 17:05:04,859 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 9 [2021-07-09 17:05:04,860 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 17:05:04,861 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 17:05:04,861 INFO L550 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-07-09 17:05:04,861 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:17, output treesize:5 [2021-07-09 17:05:04,969 INFO L134 CoverageAnalysis]: Checked inductivity of 716 backedges. 24 proven. 686 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2021-07-09 17:05:04,969 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1503400742] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-09 17:05:04,969 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-07-09 17:05:04,969 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [23, 25] total 45 [2021-07-09 17:05:04,969 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1418261528] [2021-07-09 17:05:04,970 INFO L462 AbstractCegarLoop]: Interpolant automaton has 45 states [2021-07-09 17:05:04,970 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 17:05:04,970 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 45 interpolants. [2021-07-09 17:05:04,970 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=192, Invalid=1788, Unknown=0, NotChecked=0, Total=1980 [2021-07-09 17:05:04,970 INFO L87 Difference]: Start difference. First operand 52204 states and 154737 transitions. Second operand has 45 states, 45 states have (on average 16.6) internal successors, (747), 45 states have internal predecessors, (747), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 17:05:08,883 WARN L205 SmtUtils]: Spent 215.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 50 [2021-07-09 17:05:10,459 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 17:05:10,459 INFO L93 Difference]: Finished difference Result 70969 states and 203048 transitions. [2021-07-09 17:05:10,460 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 52 states. [2021-07-09 17:05:10,460 INFO L78 Accepts]: Start accepts. Automaton has has 45 states, 45 states have (on average 16.6) internal successors, (747), 45 states have internal predecessors, (747), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 389 [2021-07-09 17:05:10,460 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 17:05:10,610 INFO L225 Difference]: With dead ends: 70969 [2021-07-09 17:05:10,610 INFO L226 Difference]: Without dead ends: 70969 [2021-07-09 17:05:10,611 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 470 GetRequests, 372 SyntacticMatches, 9 SemanticMatches, 89 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2409 ImplicationChecksByTransitivity, 3420.2ms TimeCoverageRelationStatistics Valid=765, Invalid=7425, Unknown=0, NotChecked=0, Total=8190 [2021-07-09 17:05:10,859 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 70969 states. [2021-07-09 17:05:11,614 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 70969 to 48950. [2021-07-09 17:05:11,677 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 48950 states, 48948 states have (on average 2.9578532320013076) internal successors, (144781), 48949 states have internal predecessors, (144781), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 17:05:11,784 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48950 states to 48950 states and 144781 transitions. [2021-07-09 17:05:11,784 INFO L78 Accepts]: Start accepts. Automaton has 48950 states and 144781 transitions. Word has length 389 [2021-07-09 17:05:11,785 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 17:05:11,785 INFO L482 AbstractCegarLoop]: Abstraction has 48950 states and 144781 transitions. [2021-07-09 17:05:11,785 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 45 states, 45 states have (on average 16.6) internal successors, (747), 45 states have internal predecessors, (747), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 17:05:11,785 INFO L276 IsEmpty]: Start isEmpty. Operand 48950 states and 144781 transitions. [2021-07-09 17:05:11,852 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 390 [2021-07-09 17:05:11,852 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 17:05:11,853 INFO L508 BasicCegarLoop]: trace histogram [9, 9, 9, 8, 8, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-09 17:05:12,069 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable118,64 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-09 17:05:12,069 INFO L430 AbstractCegarLoop]: === Iteration 73 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-09 17:05:12,069 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 17:05:12,069 INFO L82 PathProgramCache]: Analyzing trace with hash -1550024103, now seen corresponding path program 64 times [2021-07-09 17:05:12,069 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 17:05:12,069 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [455000246] [2021-07-09 17:05:12,070 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 17:05:12,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 17:05:12,895 INFO L134 CoverageAnalysis]: Checked inductivity of 716 backedges. 12 proven. 680 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2021-07-09 17:05:12,895 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 17:05:12,896 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [455000246] [2021-07-09 17:05:12,896 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [455000246] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-09 17:05:12,896 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1612006920] [2021-07-09 17:05:12,896 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 65 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 65 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-09 17:05:13,348 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-07-09 17:05:13,349 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-07-09 17:05:13,351 INFO L263 TraceCheckSpWp]: Trace formula consists of 727 conjuncts, 21 conjunts are in the unsatisfiable core [2021-07-09 17:05:13,354 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-09 17:05:13,398 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2021-07-09 17:05:13,399 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 17:05:13,403 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 17:05:13,404 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-07-09 17:05:13,404 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:22, output treesize:19 [2021-07-09 17:05:13,443 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 14 [2021-07-09 17:05:13,444 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 17:05:13,447 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 17:05:13,447 INFO L550 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-07-09 17:05:13,447 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:26, output treesize:11 [2021-07-09 17:05:14,155 INFO L134 CoverageAnalysis]: Checked inductivity of 716 backedges. 12 proven. 680 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2021-07-09 17:05:14,155 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1612006920] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-09 17:05:14,155 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-07-09 17:05:14,156 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 12] total 19 [2021-07-09 17:05:14,156 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2090474660] [2021-07-09 17:05:14,156 INFO L462 AbstractCegarLoop]: Interpolant automaton has 19 states [2021-07-09 17:05:14,156 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 17:05:14,156 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2021-07-09 17:05:14,156 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=300, Unknown=0, NotChecked=0, Total=342 [2021-07-09 17:05:14,157 INFO L87 Difference]: Start difference. First operand 48950 states and 144781 transitions. Second operand has 19 states, 19 states have (on average 34.94736842105263) internal successors, (664), 19 states have internal predecessors, (664), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 17:05:15,129 WARN L205 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 23 [2021-07-09 17:05:15,279 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 17:05:15,279 INFO L93 Difference]: Finished difference Result 53856 states and 154863 transitions. [2021-07-09 17:05:15,279 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2021-07-09 17:05:15,279 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 34.94736842105263) internal successors, (664), 19 states have internal predecessors, (664), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 389 [2021-07-09 17:05:15,279 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 17:05:15,384 INFO L225 Difference]: With dead ends: 53856 [2021-07-09 17:05:15,384 INFO L226 Difference]: Without dead ends: 53856 [2021-07-09 17:05:15,384 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 416 GetRequests, 382 SyntacticMatches, 1 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 214 ImplicationChecksByTransitivity, 794.7ms TimeCoverageRelationStatistics Valid=140, Invalid=1050, Unknown=0, NotChecked=0, Total=1190 [2021-07-09 17:05:15,499 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 53856 states. [2021-07-09 17:05:16,178 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 53856 to 48973. [2021-07-09 17:05:16,240 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 48973 states, 48971 states have (on average 2.957015376447285) internal successors, (144808), 48972 states have internal predecessors, (144808), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 17:05:16,348 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48973 states to 48973 states and 144808 transitions. [2021-07-09 17:05:16,348 INFO L78 Accepts]: Start accepts. Automaton has 48973 states and 144808 transitions. Word has length 389 [2021-07-09 17:05:16,348 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 17:05:16,349 INFO L482 AbstractCegarLoop]: Abstraction has 48973 states and 144808 transitions. [2021-07-09 17:05:16,349 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 19 states, 19 states have (on average 34.94736842105263) internal successors, (664), 19 states have internal predecessors, (664), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 17:05:16,349 INFO L276 IsEmpty]: Start isEmpty. Operand 48973 states and 144808 transitions. [2021-07-09 17:05:16,420 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 462 [2021-07-09 17:05:16,421 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 17:05:16,421 INFO L508 BasicCegarLoop]: trace histogram [11, 11, 11, 10, 10, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-09 17:05:16,638 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable120,65 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-09 17:05:16,639 INFO L430 AbstractCegarLoop]: === Iteration 74 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-09 17:05:16,639 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 17:05:16,639 INFO L82 PathProgramCache]: Analyzing trace with hash -1393805596, now seen corresponding path program 65 times [2021-07-09 17:05:16,639 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 17:05:16,639 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2044451088] [2021-07-09 17:05:16,639 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 17:05:16,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 17:05:17,856 INFO L134 CoverageAnalysis]: Checked inductivity of 1105 backedges. 15 proven. 1060 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2021-07-09 17:05:17,856 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 17:05:17,856 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2044451088] [2021-07-09 17:05:17,856 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2044451088] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-09 17:05:17,856 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [780989847] [2021-07-09 17:05:17,856 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 66 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 66 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-09 17:05:18,247 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 9 check-sat command(s) [2021-07-09 17:05:18,247 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-07-09 17:05:18,250 INFO L263 TraceCheckSpWp]: Trace formula consists of 853 conjuncts, 27 conjunts are in the unsatisfiable core [2021-07-09 17:05:18,253 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-09 17:05:18,264 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2021-07-09 17:05:18,264 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 17:05:18,265 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 17:05:18,266 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-07-09 17:05:18,266 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:6, output treesize:5 [2021-07-09 17:05:18,274 INFO L354 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2021-07-09 17:05:18,275 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 11 treesize of output 11 [2021-07-09 17:05:18,276 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 17:05:18,277 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 17:05:18,277 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-07-09 17:05:18,277 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:11, output treesize:4 [2021-07-09 17:05:18,312 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2021-07-09 17:05:18,313 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 17:05:18,318 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 17:05:18,318 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-07-09 17:05:18,318 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:26, output treesize:23 [2021-07-09 17:05:18,357 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 17:05:18,358 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 25 [2021-07-09 17:05:18,359 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 17:05:18,364 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 17:05:18,365 INFO L550 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-07-09 17:05:18,365 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 4 variables, input treesize:50, output treesize:19 [2021-07-09 17:05:18,397 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 14 [2021-07-09 17:05:18,398 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 17:05:18,401 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 17:05:18,401 INFO L550 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-07-09 17:05:18,401 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:26, output treesize:11 [2021-07-09 17:05:19,018 INFO L134 CoverageAnalysis]: Checked inductivity of 1105 backedges. 15 proven. 1060 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2021-07-09 17:05:19,018 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [780989847] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-09 17:05:19,018 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-07-09 17:05:19,018 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 16] total 23 [2021-07-09 17:05:19,018 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1131824933] [2021-07-09 17:05:19,019 INFO L462 AbstractCegarLoop]: Interpolant automaton has 23 states [2021-07-09 17:05:19,019 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 17:05:19,019 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2021-07-09 17:05:19,019 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=451, Unknown=0, NotChecked=0, Total=506 [2021-07-09 17:05:19,019 INFO L87 Difference]: Start difference. First operand 48973 states and 144808 transitions. Second operand has 23 states, 23 states have (on average 35.04347826086956) internal successors, (806), 23 states have internal predecessors, (806), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 17:05:20,623 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 17:05:20,623 INFO L93 Difference]: Finished difference Result 53853 states and 154860 transitions. [2021-07-09 17:05:20,624 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2021-07-09 17:05:20,624 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 23 states have (on average 35.04347826086956) internal successors, (806), 23 states have internal predecessors, (806), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 461 [2021-07-09 17:05:20,624 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 17:05:20,732 INFO L225 Difference]: With dead ends: 53853 [2021-07-09 17:05:20,732 INFO L226 Difference]: Without dead ends: 53853 [2021-07-09 17:05:20,732 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 500 GetRequests, 452 SyntacticMatches, 4 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 454 ImplicationChecksByTransitivity, 953.3ms TimeCoverageRelationStatistics Valid=219, Invalid=1851, Unknown=0, NotChecked=0, Total=2070 [2021-07-09 17:05:20,849 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 53853 states. [2021-07-09 17:05:21,542 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 53853 to 49763. [2021-07-09 17:05:21,603 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 49763 states, 49761 states have (on average 2.9431884407467694) internal successors, (146456), 49762 states have internal predecessors, (146456), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 17:05:21,720 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49763 states to 49763 states and 146456 transitions. [2021-07-09 17:05:21,720 INFO L78 Accepts]: Start accepts. Automaton has 49763 states and 146456 transitions. Word has length 461 [2021-07-09 17:05:21,720 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 17:05:21,720 INFO L482 AbstractCegarLoop]: Abstraction has 49763 states and 146456 transitions. [2021-07-09 17:05:21,721 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 23 states, 23 states have (on average 35.04347826086956) internal successors, (806), 23 states have internal predecessors, (806), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 17:05:21,721 INFO L276 IsEmpty]: Start isEmpty. Operand 49763 states and 146456 transitions. [2021-07-09 17:05:21,810 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 462 [2021-07-09 17:05:21,810 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 17:05:21,810 INFO L508 BasicCegarLoop]: trace histogram [11, 11, 11, 10, 10, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-09 17:05:22,028 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 66 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable121 [2021-07-09 17:05:22,029 INFO L430 AbstractCegarLoop]: === Iteration 75 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-09 17:05:22,029 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 17:05:22,029 INFO L82 PathProgramCache]: Analyzing trace with hash 1808111156, now seen corresponding path program 66 times [2021-07-09 17:05:22,029 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 17:05:22,029 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [910286719] [2021-07-09 17:05:22,029 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 17:05:22,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 17:05:23,283 INFO L134 CoverageAnalysis]: Checked inductivity of 1105 backedges. 15 proven. 1066 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2021-07-09 17:05:23,283 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 17:05:23,283 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [910286719] [2021-07-09 17:05:23,283 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [910286719] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-09 17:05:23,283 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [317687321] [2021-07-09 17:05:23,283 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 67 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 67 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-09 17:05:24,122 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 9 check-sat command(s) [2021-07-09 17:05:24,122 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-07-09 17:05:24,125 INFO L263 TraceCheckSpWp]: Trace formula consists of 853 conjuncts, 37 conjunts are in the unsatisfiable core [2021-07-09 17:05:24,128 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-09 17:05:24,139 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2021-07-09 17:05:24,140 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 17:05:24,141 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 17:05:24,141 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-07-09 17:05:24,141 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:6, output treesize:5 [2021-07-09 17:05:24,157 INFO L354 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2021-07-09 17:05:24,157 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 17 treesize of output 21 [2021-07-09 17:05:24,158 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 17:05:24,162 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 17:05:24,163 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-07-09 17:05:24,163 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:17, output treesize:15 [2021-07-09 17:05:24,206 INFO L354 Elim1Store]: treesize reduction 28, result has 28.2 percent of original size [2021-07-09 17:05:24,206 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 17 treesize of output 22 [2021-07-09 17:05:24,207 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 17:05:24,213 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 17:05:24,214 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2021-07-09 17:05:24,214 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:21, output treesize:20 [2021-07-09 17:05:24,337 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2021-07-09 17:05:24,338 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 17:05:24,343 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 17:05:24,344 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-07-09 17:05:24,344 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:28, output treesize:24 [2021-07-09 17:05:24,437 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 20 [2021-07-09 17:05:24,438 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 17:05:24,446 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 17:05:24,447 INFO L550 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2021-07-09 17:05:24,447 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 4 variables, input treesize:35, output treesize:24 [2021-07-09 17:05:24,559 INFO L354 Elim1Store]: treesize reduction 36, result has 34.5 percent of original size [2021-07-09 17:05:24,559 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 22 treesize of output 33 [2021-07-09 17:05:24,561 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 17:05:24,571 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 17:05:24,574 INFO L550 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-1 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2021-07-09 17:05:24,574 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:35, output treesize:37 [2021-07-09 17:05:24,964 INFO L354 Elim1Store]: treesize reduction 12, result has 52.0 percent of original size [2021-07-09 17:05:24,964 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 21 treesize of output 25 [2021-07-09 17:05:24,966 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 17:05:24,976 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 17:05:24,977 INFO L550 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-07-09 17:05:24,977 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:42, output treesize:14 [2021-07-09 17:05:25,013 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 13 [2021-07-09 17:05:25,014 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 17:05:25,017 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 17:05:25,018 INFO L550 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-07-09 17:05:25,018 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:29, output treesize:9 [2021-07-09 17:05:25,044 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 9 [2021-07-09 17:05:25,045 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 17:05:25,046 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 17:05:25,046 INFO L550 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-07-09 17:05:25,047 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:17, output treesize:5 [2021-07-09 17:05:25,578 INFO L134 CoverageAnalysis]: Checked inductivity of 1105 backedges. 15 proven. 1066 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2021-07-09 17:05:25,578 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [317687321] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-09 17:05:25,578 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-07-09 17:05:25,579 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [19, 19] total 35 [2021-07-09 17:05:25,579 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1404566729] [2021-07-09 17:05:25,579 INFO L462 AbstractCegarLoop]: Interpolant automaton has 35 states [2021-07-09 17:05:25,579 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 17:05:25,579 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 35 interpolants. [2021-07-09 17:05:25,580 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=119, Invalid=1071, Unknown=0, NotChecked=0, Total=1190 [2021-07-09 17:05:25,580 INFO L87 Difference]: Start difference. First operand 49763 states and 146456 transitions. Second operand has 35 states, 35 states have (on average 24.6) internal successors, (861), 35 states have internal predecessors, (861), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 17:05:28,636 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 17:05:28,637 INFO L93 Difference]: Finished difference Result 59827 states and 167941 transitions. [2021-07-09 17:05:28,637 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 45 states. [2021-07-09 17:05:28,637 INFO L78 Accepts]: Start accepts. Automaton has has 35 states, 35 states have (on average 24.6) internal successors, (861), 35 states have internal predecessors, (861), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 461 [2021-07-09 17:05:28,637 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 17:05:28,757 INFO L225 Difference]: With dead ends: 59827 [2021-07-09 17:05:28,757 INFO L226 Difference]: Without dead ends: 59827 [2021-07-09 17:05:28,757 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 522 GetRequests, 446 SyntacticMatches, 4 SemanticMatches, 72 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1501 ImplicationChecksByTransitivity, 2475.5ms TimeCoverageRelationStatistics Valid=607, Invalid=4795, Unknown=0, NotChecked=0, Total=5402 [2021-07-09 17:05:28,884 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 59827 states. [2021-07-09 17:05:29,636 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 59827 to 49763. [2021-07-09 17:05:29,700 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 49763 states, 49761 states have (on average 2.9431884407467694) internal successors, (146456), 49762 states have internal predecessors, (146456), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 17:05:30,089 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49763 states to 49763 states and 146456 transitions. [2021-07-09 17:05:30,090 INFO L78 Accepts]: Start accepts. Automaton has 49763 states and 146456 transitions. Word has length 461 [2021-07-09 17:05:30,090 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 17:05:30,090 INFO L482 AbstractCegarLoop]: Abstraction has 49763 states and 146456 transitions. [2021-07-09 17:05:30,090 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 35 states, 35 states have (on average 24.6) internal successors, (861), 35 states have internal predecessors, (861), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 17:05:30,090 INFO L276 IsEmpty]: Start isEmpty. Operand 49763 states and 146456 transitions. [2021-07-09 17:05:30,176 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 462 [2021-07-09 17:05:30,176 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 17:05:30,176 INFO L508 BasicCegarLoop]: trace histogram [11, 11, 11, 10, 10, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-09 17:05:30,395 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 67 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable122 [2021-07-09 17:05:30,395 INFO L430 AbstractCegarLoop]: === Iteration 76 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-09 17:05:30,395 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 17:05:30,396 INFO L82 PathProgramCache]: Analyzing trace with hash 695820466, now seen corresponding path program 67 times [2021-07-09 17:05:30,396 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 17:05:30,396 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1965148641] [2021-07-09 17:05:30,396 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 17:05:30,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 17:05:31,288 INFO L134 CoverageAnalysis]: Checked inductivity of 1105 backedges. 15 proven. 1066 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2021-07-09 17:05:31,289 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 17:05:31,289 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1965148641] [2021-07-09 17:05:31,289 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1965148641] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-09 17:05:31,289 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2015815547] [2021-07-09 17:05:31,289 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 68 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 68 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-09 17:05:31,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 17:05:31,482 INFO L263 TraceCheckSpWp]: Trace formula consists of 853 conjuncts, 40 conjunts are in the unsatisfiable core [2021-07-09 17:05:31,486 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-09 17:05:31,496 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2021-07-09 17:05:31,497 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 17:05:31,498 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 17:05:31,498 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-07-09 17:05:31,498 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:6, output treesize:5 [2021-07-09 17:05:31,514 INFO L354 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2021-07-09 17:05:31,514 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 17 treesize of output 21 [2021-07-09 17:05:31,515 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 17:05:31,519 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 17:05:31,520 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-07-09 17:05:31,520 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:17, output treesize:15 [2021-07-09 17:05:31,571 INFO L354 Elim1Store]: treesize reduction 36, result has 34.5 percent of original size [2021-07-09 17:05:31,571 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 22 treesize of output 33 [2021-07-09 17:05:31,572 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 17:05:31,580 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 17:05:31,581 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2021-07-09 17:05:31,581 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:26, output treesize:28 [2021-07-09 17:05:31,890 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2021-07-09 17:05:31,891 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 17:05:31,901 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 17:05:31,902 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2021-07-09 17:05:31,902 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:41, output treesize:37 [2021-07-09 17:05:32,102 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 20 [2021-07-09 17:05:32,104 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 17:05:32,115 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 17:05:32,118 INFO L550 ElimStorePlain]: Start of recursive call 1: 4 dim-0 vars, 1 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2021-07-09 17:05:32,118 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 5 variables, input treesize:48, output treesize:37 [2021-07-09 17:05:32,277 INFO L354 Elim1Store]: treesize reduction 54, result has 34.1 percent of original size [2021-07-09 17:05:32,278 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 27 treesize of output 45 [2021-07-09 17:05:32,279 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 17:05:32,294 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 17:05:32,298 INFO L550 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-1 vars, End of recursive call: 3 dim-0 vars, and 1 xjuncts. [2021-07-09 17:05:32,298 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 4 variables, input treesize:48, output treesize:54 [2021-07-09 17:05:32,829 INFO L354 Elim1Store]: treesize reduction 16, result has 51.5 percent of original size [2021-07-09 17:05:32,829 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 6 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 4 case distinctions, treesize of input 26 treesize of output 32 [2021-07-09 17:05:32,831 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 17:05:32,846 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 17:05:32,847 INFO L550 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-07-09 17:05:32,847 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 4 variables, input treesize:59, output treesize:14 [2021-07-09 17:05:32,883 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 13 [2021-07-09 17:05:32,884 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 17:05:32,887 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 17:05:32,888 INFO L550 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-07-09 17:05:32,888 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:29, output treesize:9 [2021-07-09 17:05:32,967 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 9 [2021-07-09 17:05:32,968 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 17:05:32,969 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 17:05:32,970 INFO L550 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-07-09 17:05:32,970 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:17, output treesize:5 [2021-07-09 17:05:33,686 INFO L134 CoverageAnalysis]: Checked inductivity of 1105 backedges. 15 proven. 1072 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2021-07-09 17:05:33,687 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2015815547] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-09 17:05:33,687 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-07-09 17:05:33,687 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [18, 23] total 38 [2021-07-09 17:05:33,687 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1813858827] [2021-07-09 17:05:33,687 INFO L462 AbstractCegarLoop]: Interpolant automaton has 38 states [2021-07-09 17:05:33,687 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 17:05:33,688 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 38 interpolants. [2021-07-09 17:05:33,688 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=135, Invalid=1271, Unknown=0, NotChecked=0, Total=1406 [2021-07-09 17:05:33,688 INFO L87 Difference]: Start difference. First operand 49763 states and 146456 transitions. Second operand has 38 states, 38 states have (on average 22.789473684210527) internal successors, (866), 38 states have internal predecessors, (866), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 17:05:36,641 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 17:05:36,641 INFO L93 Difference]: Finished difference Result 56983 states and 162151 transitions. [2021-07-09 17:05:36,642 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2021-07-09 17:05:36,642 INFO L78 Accepts]: Start accepts. Automaton has has 38 states, 38 states have (on average 22.789473684210527) internal successors, (866), 38 states have internal predecessors, (866), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 461 [2021-07-09 17:05:36,642 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 17:05:36,770 INFO L225 Difference]: With dead ends: 56983 [2021-07-09 17:05:36,771 INFO L226 Difference]: Without dead ends: 56983 [2021-07-09 17:05:36,771 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 512 GetRequests, 445 SyntacticMatches, 3 SemanticMatches, 64 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1168 ImplicationChecksByTransitivity, 2011.1ms TimeCoverageRelationStatistics Valid=398, Invalid=3892, Unknown=0, NotChecked=0, Total=4290 [2021-07-09 17:05:36,907 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 56983 states. [2021-07-09 17:05:37,681 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 56983 to 49763. [2021-07-09 17:05:37,746 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 49763 states, 49761 states have (on average 2.9431884407467694) internal successors, (146456), 49762 states have internal predecessors, (146456), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 17:05:37,864 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49763 states to 49763 states and 146456 transitions. [2021-07-09 17:05:37,864 INFO L78 Accepts]: Start accepts. Automaton has 49763 states and 146456 transitions. Word has length 461 [2021-07-09 17:05:37,865 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 17:05:37,865 INFO L482 AbstractCegarLoop]: Abstraction has 49763 states and 146456 transitions. [2021-07-09 17:05:37,865 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 38 states, 38 states have (on average 22.789473684210527) internal successors, (866), 38 states have internal predecessors, (866), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 17:05:37,865 INFO L276 IsEmpty]: Start isEmpty. Operand 49763 states and 146456 transitions. [2021-07-09 17:05:38,361 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 462 [2021-07-09 17:05:38,361 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 17:05:38,361 INFO L508 BasicCegarLoop]: trace histogram [11, 11, 11, 10, 10, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-09 17:05:38,576 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable123,68 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-09 17:05:38,577 INFO L430 AbstractCegarLoop]: === Iteration 77 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-09 17:05:38,577 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 17:05:38,578 INFO L82 PathProgramCache]: Analyzing trace with hash 1664490878, now seen corresponding path program 68 times [2021-07-09 17:05:38,578 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 17:05:38,578 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1224253871] [2021-07-09 17:05:38,578 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 17:05:38,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 17:05:39,648 INFO L134 CoverageAnalysis]: Checked inductivity of 1105 backedges. 15 proven. 1066 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2021-07-09 17:05:39,648 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 17:05:39,648 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1224253871] [2021-07-09 17:05:39,648 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1224253871] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-09 17:05:39,648 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1687590924] [2021-07-09 17:05:39,648 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 69 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 69 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-09 17:05:39,843 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-07-09 17:05:39,844 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-07-09 17:05:39,846 INFO L263 TraceCheckSpWp]: Trace formula consists of 853 conjuncts, 47 conjunts are in the unsatisfiable core [2021-07-09 17:05:39,849 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-09 17:05:39,860 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2021-07-09 17:05:39,861 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 17:05:39,862 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 17:05:39,862 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-07-09 17:05:39,862 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:6, output treesize:5 [2021-07-09 17:05:39,879 INFO L354 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2021-07-09 17:05:39,879 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 17 treesize of output 21 [2021-07-09 17:05:39,880 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 17:05:39,884 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 17:05:39,885 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-07-09 17:05:39,885 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:17, output treesize:15 [2021-07-09 17:05:39,939 INFO L354 Elim1Store]: treesize reduction 36, result has 34.5 percent of original size [2021-07-09 17:05:39,939 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 22 treesize of output 33 [2021-07-09 17:05:39,940 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 17:05:39,948 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 17:05:39,949 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2021-07-09 17:05:39,950 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:26, output treesize:28 [2021-07-09 17:05:40,208 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2021-07-09 17:05:40,209 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 17:05:40,218 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 17:05:40,219 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2021-07-09 17:05:40,219 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:41, output treesize:37 [2021-07-09 17:05:40,481 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 20 [2021-07-09 17:05:40,482 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 17:05:40,493 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 17:05:40,495 INFO L550 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2021-07-09 17:05:40,495 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:48, output treesize:37 [2021-07-09 17:05:40,571 INFO L354 Elim1Store]: treesize reduction 54, result has 34.1 percent of original size [2021-07-09 17:05:40,572 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 27 treesize of output 45 [2021-07-09 17:05:40,573 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 17:05:40,588 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 17:05:40,591 INFO L550 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-1 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2021-07-09 17:05:40,591 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:48, output treesize:54 [2021-07-09 17:05:41,274 INFO L354 Elim1Store]: treesize reduction 72, result has 33.9 percent of original size [2021-07-09 17:05:41,274 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 6 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 8 case distinctions, treesize of input 32 treesize of output 57 [2021-07-09 17:05:41,276 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 17:05:41,299 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 17:05:41,303 INFO L550 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-1 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2021-07-09 17:05:41,303 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:65, output treesize:75 [2021-07-09 17:05:41,425 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 7 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 13 [2021-07-09 17:05:41,426 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 17:05:41,451 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 17:05:41,455 INFO L550 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2021-07-09 17:05:41,455 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 4 variables, input treesize:90, output treesize:75 [2021-07-09 17:05:41,492 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 10 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 41 [2021-07-09 17:05:41,493 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 17:05:41,532 INFO L628 ElimStorePlain]: treesize reduction 16, result has 78.7 percent of original size [2021-07-09 17:05:41,536 INFO L550 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-1 vars, End of recursive call: 3 dim-0 vars, and 1 xjuncts. [2021-07-09 17:05:41,536 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 4 variables, input treesize:81, output treesize:59 [2021-07-09 17:05:41,971 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 5 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 20 [2021-07-09 17:05:41,972 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 17:05:41,992 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 17:05:41,997 INFO L550 ElimStorePlain]: Start of recursive call 1: 6 dim-0 vars, 1 dim-2 vars, End of recursive call: 4 dim-0 vars, and 1 xjuncts. [2021-07-09 17:05:41,998 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 7 variables, input treesize:70, output treesize:59 [2021-07-09 17:05:42,585 WARN L313 ript$VariableManager]: TermVariabe |thread_usbThread1of1ForFork0_ieee80211_deregister_hw_~#status~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 17:05:42,631 INFO L354 Elim1Store]: treesize reduction 40, result has 45.2 percent of original size [2021-07-09 17:05:42,631 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 6 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 9 case distinctions, treesize of input 31 treesize of output 51 [2021-07-09 17:05:42,634 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 17:05:42,656 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 17:05:42,657 INFO L550 ElimStorePlain]: Start of recursive call 1: 4 dim-0 vars, 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-07-09 17:05:42,657 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 5 variables, input treesize:64, output treesize:14 [2021-07-09 17:05:42,700 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 13 [2021-07-09 17:05:42,701 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 17:05:42,704 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 17:05:42,705 INFO L550 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-07-09 17:05:42,705 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:29, output treesize:9 [2021-07-09 17:05:42,738 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 9 [2021-07-09 17:05:42,739 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 17:05:42,740 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 17:05:42,741 INFO L550 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-07-09 17:05:42,741 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:17, output treesize:5 [2021-07-09 17:05:43,226 INFO L134 CoverageAnalysis]: Checked inductivity of 1105 backedges. 20 proven. 1067 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2021-07-09 17:05:43,226 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1687590924] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-09 17:05:43,226 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-07-09 17:05:43,226 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [20, 24] total 41 [2021-07-09 17:05:43,226 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [589976767] [2021-07-09 17:05:43,227 INFO L462 AbstractCegarLoop]: Interpolant automaton has 41 states [2021-07-09 17:05:43,227 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 17:05:43,227 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 41 interpolants. [2021-07-09 17:05:43,227 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=181, Invalid=1459, Unknown=0, NotChecked=0, Total=1640 [2021-07-09 17:05:43,228 INFO L87 Difference]: Start difference. First operand 49763 states and 146456 transitions. Second operand has 41 states, 41 states have (on average 21.121951219512194) internal successors, (866), 41 states have internal predecessors, (866), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 17:05:44,291 WARN L205 SmtUtils]: Spent 133.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 46 [2021-07-09 17:05:45,191 WARN L205 SmtUtils]: Spent 133.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 50 [2021-07-09 17:05:47,434 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 17:05:47,434 INFO L93 Difference]: Finished difference Result 64119 states and 178615 transitions. [2021-07-09 17:05:47,434 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 46 states. [2021-07-09 17:05:47,434 INFO L78 Accepts]: Start accepts. Automaton has has 41 states, 41 states have (on average 21.121951219512194) internal successors, (866), 41 states have internal predecessors, (866), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 461 [2021-07-09 17:05:47,435 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 17:05:47,568 INFO L225 Difference]: With dead ends: 64119 [2021-07-09 17:05:47,568 INFO L226 Difference]: Without dead ends: 64119 [2021-07-09 17:05:47,569 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 527 GetRequests, 445 SyntacticMatches, 4 SemanticMatches, 78 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1780 ImplicationChecksByTransitivity, 3353.4ms TimeCoverageRelationStatistics Valid=631, Invalid=5689, Unknown=0, NotChecked=0, Total=6320 [2021-07-09 17:05:47,714 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 64119 states. [2021-07-09 17:05:48,581 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 64119 to 51389. [2021-07-09 17:05:48,647 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 51389 states, 51387 states have (on average 2.946893183100784) internal successors, (151432), 51388 states have internal predecessors, (151432), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 17:05:49,312 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51389 states to 51389 states and 151432 transitions. [2021-07-09 17:05:49,324 INFO L78 Accepts]: Start accepts. Automaton has 51389 states and 151432 transitions. Word has length 461 [2021-07-09 17:05:49,325 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 17:05:49,325 INFO L482 AbstractCegarLoop]: Abstraction has 51389 states and 151432 transitions. [2021-07-09 17:05:49,325 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 41 states, 41 states have (on average 21.121951219512194) internal successors, (866), 41 states have internal predecessors, (866), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 17:05:49,325 INFO L276 IsEmpty]: Start isEmpty. Operand 51389 states and 151432 transitions. [2021-07-09 17:05:49,451 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 462 [2021-07-09 17:05:49,452 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 17:05:49,452 INFO L508 BasicCegarLoop]: trace histogram [11, 11, 11, 10, 10, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-09 17:05:49,671 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 69 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable125 [2021-07-09 17:05:49,671 INFO L430 AbstractCegarLoop]: === Iteration 78 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-09 17:05:49,672 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 17:05:49,672 INFO L82 PathProgramCache]: Analyzing trace with hash -1150929412, now seen corresponding path program 69 times [2021-07-09 17:05:49,672 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 17:05:49,672 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [288171413] [2021-07-09 17:05:49,672 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 17:05:49,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 17:05:50,564 INFO L134 CoverageAnalysis]: Checked inductivity of 1105 backedges. 15 proven. 1066 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2021-07-09 17:05:50,564 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 17:05:50,564 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [288171413] [2021-07-09 17:05:50,564 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [288171413] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-09 17:05:50,564 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1950409343] [2021-07-09 17:05:50,564 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 70 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 70 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-09 17:05:51,104 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 9 check-sat command(s) [2021-07-09 17:05:51,104 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-07-09 17:05:51,108 INFO L263 TraceCheckSpWp]: Trace formula consists of 853 conjuncts, 50 conjunts are in the unsatisfiable core [2021-07-09 17:05:51,111 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-09 17:05:51,121 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2021-07-09 17:05:51,122 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 17:05:51,123 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 17:05:51,123 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-07-09 17:05:51,123 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:6, output treesize:5 [2021-07-09 17:05:51,138 INFO L354 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2021-07-09 17:05:51,138 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 17 treesize of output 21 [2021-07-09 17:05:51,139 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 17:05:51,143 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 17:05:51,143 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-07-09 17:05:51,143 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:17, output treesize:15 [2021-07-09 17:05:51,216 INFO L354 Elim1Store]: treesize reduction 36, result has 34.5 percent of original size [2021-07-09 17:05:51,216 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 22 treesize of output 33 [2021-07-09 17:05:51,218 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 17:05:51,225 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 17:05:51,226 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2021-07-09 17:05:51,226 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:26, output treesize:28 [2021-07-09 17:05:51,463 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2021-07-09 17:05:51,463 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 17:05:51,472 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 17:05:51,473 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2021-07-09 17:05:51,473 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:41, output treesize:37 [2021-07-09 17:05:51,660 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 20 [2021-07-09 17:05:51,661 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 17:05:51,671 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 17:05:51,672 INFO L550 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2021-07-09 17:05:51,672 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:48, output treesize:37 [2021-07-09 17:05:51,824 INFO L354 Elim1Store]: treesize reduction 54, result has 34.1 percent of original size [2021-07-09 17:05:51,824 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 27 treesize of output 45 [2021-07-09 17:05:51,825 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 17:05:51,839 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 17:05:51,842 INFO L550 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-1 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2021-07-09 17:05:51,842 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:48, output treesize:54 [2021-07-09 17:05:52,284 INFO L354 Elim1Store]: treesize reduction 72, result has 33.9 percent of original size [2021-07-09 17:05:52,284 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 6 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 8 case distinctions, treesize of input 32 treesize of output 57 [2021-07-09 17:05:52,286 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 17:05:52,309 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 17:05:52,312 INFO L550 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-1 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2021-07-09 17:05:52,312 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:65, output treesize:75 [2021-07-09 17:05:52,431 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 7 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 13 [2021-07-09 17:05:52,431 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 17:05:52,458 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 17:05:52,462 INFO L550 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2021-07-09 17:05:52,462 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 4 variables, input treesize:90, output treesize:75 [2021-07-09 17:05:52,521 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 10 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 41 [2021-07-09 17:05:52,522 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 17:05:52,562 INFO L628 ElimStorePlain]: treesize reduction 16, result has 78.7 percent of original size [2021-07-09 17:05:52,565 INFO L550 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-1 vars, End of recursive call: 3 dim-0 vars, and 1 xjuncts. [2021-07-09 17:05:52,565 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 4 variables, input treesize:81, output treesize:59 [2021-07-09 17:05:52,995 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 5 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 20 [2021-07-09 17:05:52,996 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 17:05:53,016 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 17:05:53,021 INFO L550 ElimStorePlain]: Start of recursive call 1: 6 dim-0 vars, 1 dim-2 vars, End of recursive call: 4 dim-0 vars, and 1 xjuncts. [2021-07-09 17:05:53,021 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 7 variables, input treesize:70, output treesize:59 [2021-07-09 17:05:53,600 WARN L313 ript$VariableManager]: TermVariabe |thread_usbThread1of1ForFork0_ieee80211_deregister_hw_~#status~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 17:05:53,645 INFO L354 Elim1Store]: treesize reduction 40, result has 45.2 percent of original size [2021-07-09 17:05:53,645 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 6 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 9 case distinctions, treesize of input 31 treesize of output 51 [2021-07-09 17:05:53,648 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 17:05:53,670 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 17:05:53,671 INFO L550 ElimStorePlain]: Start of recursive call 1: 4 dim-0 vars, 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-07-09 17:05:53,671 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 5 variables, input treesize:64, output treesize:14 [2021-07-09 17:05:53,712 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 13 [2021-07-09 17:05:53,713 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 17:05:53,717 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 17:05:53,718 INFO L550 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-07-09 17:05:53,718 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:29, output treesize:9 [2021-07-09 17:05:53,765 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 14 [2021-07-09 17:05:53,766 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 17:05:53,769 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 17:05:53,770 INFO L550 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-07-09 17:05:53,770 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:26, output treesize:11 [2021-07-09 17:05:54,496 INFO L134 CoverageAnalysis]: Checked inductivity of 1105 backedges. 21 proven. 1072 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2021-07-09 17:05:54,496 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1950409343] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-09 17:05:54,496 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-07-09 17:05:54,496 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [20, 27] total 42 [2021-07-09 17:05:54,496 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1778385075] [2021-07-09 17:05:54,497 INFO L462 AbstractCegarLoop]: Interpolant automaton has 42 states [2021-07-09 17:05:54,497 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 17:05:54,497 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 42 interpolants. [2021-07-09 17:05:54,497 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=172, Invalid=1550, Unknown=0, NotChecked=0, Total=1722 [2021-07-09 17:05:54,497 INFO L87 Difference]: Start difference. First operand 51389 states and 151432 transitions. Second operand has 42 states, 42 states have (on average 20.095238095238095) internal successors, (844), 42 states have internal predecessors, (844), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 17:05:57,747 WARN L205 SmtUtils]: Spent 153.00 ms on a formula simplification that was a NOOP. DAG size: 39 [2021-07-09 17:05:58,202 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 17:05:58,203 INFO L93 Difference]: Finished difference Result 58752 states and 167443 transitions. [2021-07-09 17:05:58,203 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 41 states. [2021-07-09 17:05:58,203 INFO L78 Accepts]: Start accepts. Automaton has has 42 states, 42 states have (on average 20.095238095238095) internal successors, (844), 42 states have internal predecessors, (844), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 461 [2021-07-09 17:05:58,203 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 17:05:58,320 INFO L225 Difference]: With dead ends: 58752 [2021-07-09 17:05:58,320 INFO L226 Difference]: Without dead ends: 58752 [2021-07-09 17:05:58,320 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 523 GetRequests, 444 SyntacticMatches, 5 SemanticMatches, 74 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1765 ImplicationChecksByTransitivity, 2823.8ms TimeCoverageRelationStatistics Valid=502, Invalid=5198, Unknown=0, NotChecked=0, Total=5700 [2021-07-09 17:05:58,442 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 58752 states. [2021-07-09 17:05:59,214 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 58752 to 52169. [2021-07-09 17:05:59,280 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 52169 states, 52167 states have (on average 2.949182433339084) internal successors, (153850), 52168 states have internal predecessors, (153850), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 17:05:59,397 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52169 states to 52169 states and 153850 transitions. [2021-07-09 17:05:59,397 INFO L78 Accepts]: Start accepts. Automaton has 52169 states and 153850 transitions. Word has length 461 [2021-07-09 17:05:59,398 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 17:05:59,398 INFO L482 AbstractCegarLoop]: Abstraction has 52169 states and 153850 transitions. [2021-07-09 17:05:59,398 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 42 states, 42 states have (on average 20.095238095238095) internal successors, (844), 42 states have internal predecessors, (844), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 17:05:59,398 INFO L276 IsEmpty]: Start isEmpty. Operand 52169 states and 153850 transitions. [2021-07-09 17:05:59,486 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 462 [2021-07-09 17:05:59,487 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 17:05:59,487 INFO L508 BasicCegarLoop]: trace histogram [11, 11, 11, 10, 10, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-09 17:05:59,700 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable127,70 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-09 17:05:59,701 INFO L430 AbstractCegarLoop]: === Iteration 79 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-09 17:05:59,701 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 17:05:59,702 INFO L82 PathProgramCache]: Analyzing trace with hash -267460920, now seen corresponding path program 70 times [2021-07-09 17:05:59,702 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 17:05:59,702 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1082426000] [2021-07-09 17:05:59,702 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 17:05:59,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 17:06:00,855 WARN L205 SmtUtils]: Spent 159.00 ms on a formula simplification. DAG size of input: 22 DAG size of output: 18 [2021-07-09 17:06:00,972 INFO L134 CoverageAnalysis]: Checked inductivity of 1105 backedges. 15 proven. 1066 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2021-07-09 17:06:00,972 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 17:06:00,972 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1082426000] [2021-07-09 17:06:00,973 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1082426000] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-09 17:06:00,973 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1318920806] [2021-07-09 17:06:00,973 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 71 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 71 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-09 17:06:01,541 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-07-09 17:06:01,541 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-07-09 17:06:01,544 INFO L263 TraceCheckSpWp]: Trace formula consists of 853 conjuncts, 53 conjunts are in the unsatisfiable core [2021-07-09 17:06:01,548 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-09 17:06:01,558 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2021-07-09 17:06:01,559 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 17:06:01,560 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 17:06:01,560 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-07-09 17:06:01,561 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:6, output treesize:5 [2021-07-09 17:06:01,576 INFO L354 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2021-07-09 17:06:01,577 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 17 treesize of output 21 [2021-07-09 17:06:01,578 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 17:06:01,582 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 17:06:01,583 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-07-09 17:06:01,583 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:17, output treesize:15 [2021-07-09 17:06:01,636 INFO L354 Elim1Store]: treesize reduction 36, result has 34.5 percent of original size [2021-07-09 17:06:01,636 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 22 treesize of output 33 [2021-07-09 17:06:01,637 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 17:06:01,645 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 17:06:01,646 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2021-07-09 17:06:01,646 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:26, output treesize:28 [2021-07-09 17:06:01,914 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2021-07-09 17:06:01,915 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 17:06:01,924 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 17:06:01,925 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2021-07-09 17:06:01,926 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:41, output treesize:37 [2021-07-09 17:06:02,138 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 20 [2021-07-09 17:06:02,139 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 17:06:02,150 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 17:06:02,152 INFO L550 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2021-07-09 17:06:02,152 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:48, output treesize:37 [2021-07-09 17:06:02,227 INFO L354 Elim1Store]: treesize reduction 54, result has 34.1 percent of original size [2021-07-09 17:06:02,227 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 27 treesize of output 45 [2021-07-09 17:06:02,229 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 17:06:02,243 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 17:06:02,246 INFO L550 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-1 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2021-07-09 17:06:02,247 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:48, output treesize:54 [2021-07-09 17:06:02,944 INFO L354 Elim1Store]: treesize reduction 72, result has 33.9 percent of original size [2021-07-09 17:06:02,944 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 6 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 8 case distinctions, treesize of input 32 treesize of output 57 [2021-07-09 17:06:02,945 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 17:06:02,970 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 17:06:02,974 INFO L550 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-1 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2021-07-09 17:06:02,974 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:65, output treesize:75 [2021-07-09 17:06:03,091 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 7 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 13 [2021-07-09 17:06:03,092 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 17:06:03,117 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 17:06:03,121 INFO L550 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2021-07-09 17:06:03,121 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 4 variables, input treesize:90, output treesize:75 [2021-07-09 17:06:03,159 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 10 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 41 [2021-07-09 17:06:03,160 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 17:06:03,198 INFO L628 ElimStorePlain]: treesize reduction 16, result has 78.7 percent of original size [2021-07-09 17:06:03,201 INFO L550 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-1 vars, End of recursive call: 3 dim-0 vars, and 1 xjuncts. [2021-07-09 17:06:03,202 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 4 variables, input treesize:81, output treesize:59 [2021-07-09 17:06:03,644 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 5 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 20 [2021-07-09 17:06:03,645 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 17:06:03,665 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 17:06:03,669 INFO L550 ElimStorePlain]: Start of recursive call 1: 4 dim-0 vars, 1 dim-2 vars, End of recursive call: 3 dim-0 vars, and 1 xjuncts. [2021-07-09 17:06:03,669 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 5 variables, input treesize:70, output treesize:59 [2021-07-09 17:06:04,074 WARN L313 ript$VariableManager]: TermVariabe |thread_usbThread1of1ForFork0_ieee80211_deregister_hw_~#status~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 17:06:04,142 INFO L354 Elim1Store]: treesize reduction 122, result has 27.4 percent of original size [2021-07-09 17:06:04,143 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 6 select indices, 6 select index equivalence classes, 6 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 14 case distinctions, treesize of input 37 treesize of output 69 [2021-07-09 17:06:04,145 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 17:06:04,181 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 17:06:04,185 INFO L550 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-1 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2021-07-09 17:06:04,185 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 4 variables, input treesize:70, output treesize:75 [2021-07-09 17:06:04,306 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 7 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 13 [2021-07-09 17:06:04,307 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 17:06:04,332 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 17:06:04,336 INFO L550 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2021-07-09 17:06:04,336 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 4 variables, input treesize:90, output treesize:75 [2021-07-09 17:06:04,372 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 10 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 41 [2021-07-09 17:06:04,374 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 17:06:04,412 INFO L628 ElimStorePlain]: treesize reduction 16, result has 78.7 percent of original size [2021-07-09 17:06:04,416 INFO L550 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-1 vars, End of recursive call: 3 dim-0 vars, and 1 xjuncts. [2021-07-09 17:06:04,416 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 4 variables, input treesize:81, output treesize:59 [2021-07-09 17:06:04,767 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 5 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 20 [2021-07-09 17:06:04,768 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 17:06:04,788 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 17:06:04,793 INFO L550 ElimStorePlain]: Start of recursive call 1: 6 dim-0 vars, 1 dim-2 vars, End of recursive call: 4 dim-0 vars, and 1 xjuncts. [2021-07-09 17:06:04,794 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 7 variables, input treesize:70, output treesize:59 [2021-07-09 17:06:05,381 WARN L313 ript$VariableManager]: TermVariabe |thread_usbThread1of1ForFork0_ieee80211_deregister_hw_~#status~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 17:06:05,425 INFO L354 Elim1Store]: treesize reduction 40, result has 45.2 percent of original size [2021-07-09 17:06:05,426 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 6 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 9 case distinctions, treesize of input 31 treesize of output 51 [2021-07-09 17:06:05,428 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 17:06:05,450 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 17:06:05,451 INFO L550 ElimStorePlain]: Start of recursive call 1: 4 dim-0 vars, 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-07-09 17:06:05,451 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 5 variables, input treesize:64, output treesize:14 [2021-07-09 17:06:05,495 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 13 [2021-07-09 17:06:05,496 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 17:06:05,499 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 17:06:05,500 INFO L550 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-07-09 17:06:05,500 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:29, output treesize:9 [2021-07-09 17:06:05,534 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 9 [2021-07-09 17:06:05,535 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 17:06:05,536 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 17:06:05,537 INFO L550 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-07-09 17:06:05,537 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:17, output treesize:5 [2021-07-09 17:06:05,913 INFO L134 CoverageAnalysis]: Checked inductivity of 1105 backedges. 20 proven. 1067 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2021-07-09 17:06:05,914 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1318920806] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-09 17:06:05,914 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-07-09 17:06:05,914 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [20, 25] total 42 [2021-07-09 17:06:05,914 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1072773920] [2021-07-09 17:06:05,914 INFO L462 AbstractCegarLoop]: Interpolant automaton has 42 states [2021-07-09 17:06:05,914 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 17:06:05,915 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 42 interpolants. [2021-07-09 17:06:05,915 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=191, Invalid=1531, Unknown=0, NotChecked=0, Total=1722 [2021-07-09 17:06:05,915 INFO L87 Difference]: Start difference. First operand 52169 states and 153850 transitions. Second operand has 42 states, 42 states have (on average 20.61904761904762) internal successors, (866), 42 states have internal predecessors, (866), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 17:06:07,086 WARN L205 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 46 [2021-07-09 17:06:08,101 WARN L205 SmtUtils]: Spent 136.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 50 [2021-07-09 17:06:10,527 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 17:06:10,527 INFO L93 Difference]: Finished difference Result 64119 states and 179428 transitions. [2021-07-09 17:06:10,528 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 47 states. [2021-07-09 17:06:10,528 INFO L78 Accepts]: Start accepts. Automaton has has 42 states, 42 states have (on average 20.61904761904762) internal successors, (866), 42 states have internal predecessors, (866), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 461 [2021-07-09 17:06:10,528 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 17:06:10,658 INFO L225 Difference]: With dead ends: 64119 [2021-07-09 17:06:10,658 INFO L226 Difference]: Without dead ends: 64119 [2021-07-09 17:06:10,659 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 532 GetRequests, 446 SyntacticMatches, 6 SemanticMatches, 80 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1858 ImplicationChecksByTransitivity, 3784.7ms TimeCoverageRelationStatistics Valid=654, Invalid=5988, Unknown=0, NotChecked=0, Total=6642 [2021-07-09 17:06:10,795 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 64119 states. [2021-07-09 17:06:11,635 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 64119 to 52202. [2021-07-09 17:06:11,700 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 52202 states, 52200 states have (on average 2.9486590038314175) internal successors, (153920), 52201 states have internal predecessors, (153920), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 17:06:11,817 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52202 states to 52202 states and 153920 transitions. [2021-07-09 17:06:11,817 INFO L78 Accepts]: Start accepts. Automaton has 52202 states and 153920 transitions. Word has length 461 [2021-07-09 17:06:11,817 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 17:06:11,817 INFO L482 AbstractCegarLoop]: Abstraction has 52202 states and 153920 transitions. [2021-07-09 17:06:11,817 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 42 states, 42 states have (on average 20.61904761904762) internal successors, (866), 42 states have internal predecessors, (866), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 17:06:11,817 INFO L276 IsEmpty]: Start isEmpty. Operand 52202 states and 153920 transitions. [2021-07-09 17:06:11,904 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 462 [2021-07-09 17:06:11,904 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 17:06:11,904 INFO L508 BasicCegarLoop]: trace histogram [11, 11, 11, 10, 10, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-09 17:06:12,120 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable130,71 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-09 17:06:12,121 INFO L430 AbstractCegarLoop]: === Iteration 80 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-09 17:06:12,121 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 17:06:12,121 INFO L82 PathProgramCache]: Analyzing trace with hash -866564794, now seen corresponding path program 71 times [2021-07-09 17:06:12,121 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 17:06:12,121 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1736229065] [2021-07-09 17:06:12,121 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 17:06:12,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 17:06:13,406 INFO L134 CoverageAnalysis]: Checked inductivity of 1105 backedges. 15 proven. 1066 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2021-07-09 17:06:13,406 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 17:06:13,406 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1736229065] [2021-07-09 17:06:13,406 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1736229065] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-09 17:06:13,406 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [446539926] [2021-07-09 17:06:13,406 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 72 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 72 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-09 17:06:13,769 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 9 check-sat command(s) [2021-07-09 17:06:13,769 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-07-09 17:06:13,772 INFO L263 TraceCheckSpWp]: Trace formula consists of 853 conjuncts, 53 conjunts are in the unsatisfiable core [2021-07-09 17:06:13,776 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-09 17:06:13,785 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2021-07-09 17:06:13,786 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 17:06:13,787 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 17:06:13,787 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-07-09 17:06:13,787 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:6, output treesize:5 [2021-07-09 17:06:13,802 INFO L354 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2021-07-09 17:06:13,802 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 17 treesize of output 21 [2021-07-09 17:06:13,803 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 17:06:13,807 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 17:06:13,807 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-07-09 17:06:13,807 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:17, output treesize:15 [2021-07-09 17:06:13,852 INFO L354 Elim1Store]: treesize reduction 36, result has 34.5 percent of original size [2021-07-09 17:06:13,852 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 22 treesize of output 33 [2021-07-09 17:06:13,853 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 17:06:13,860 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 17:06:13,861 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2021-07-09 17:06:13,861 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:26, output treesize:28 [2021-07-09 17:06:14,099 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2021-07-09 17:06:14,099 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 17:06:14,108 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 17:06:14,109 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2021-07-09 17:06:14,109 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:41, output treesize:37 [2021-07-09 17:06:14,300 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 20 [2021-07-09 17:06:14,301 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 17:06:14,311 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 17:06:14,312 INFO L550 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2021-07-09 17:06:14,312 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:48, output treesize:37 [2021-07-09 17:06:14,378 INFO L354 Elim1Store]: treesize reduction 54, result has 34.1 percent of original size [2021-07-09 17:06:14,378 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 27 treesize of output 45 [2021-07-09 17:06:14,379 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 17:06:14,393 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 17:06:14,396 INFO L550 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-1 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2021-07-09 17:06:14,396 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:48, output treesize:54 [2021-07-09 17:06:15,037 INFO L354 Elim1Store]: treesize reduction 72, result has 33.9 percent of original size [2021-07-09 17:06:15,037 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 6 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 8 case distinctions, treesize of input 32 treesize of output 57 [2021-07-09 17:06:15,039 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 17:06:15,063 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 17:06:15,066 INFO L550 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-1 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2021-07-09 17:06:15,066 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:65, output treesize:75 [2021-07-09 17:06:15,187 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 7 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 13 [2021-07-09 17:06:15,188 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 17:06:15,210 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 17:06:15,213 INFO L550 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2021-07-09 17:06:15,213 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 4 variables, input treesize:90, output treesize:75 [2021-07-09 17:06:15,246 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 10 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 41 [2021-07-09 17:06:15,247 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 17:06:15,284 INFO L628 ElimStorePlain]: treesize reduction 16, result has 78.7 percent of original size [2021-07-09 17:06:15,287 INFO L550 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-1 vars, End of recursive call: 3 dim-0 vars, and 1 xjuncts. [2021-07-09 17:06:15,287 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 4 variables, input treesize:81, output treesize:59 [2021-07-09 17:06:15,686 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 5 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 20 [2021-07-09 17:06:15,687 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 17:06:15,704 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 17:06:15,707 INFO L550 ElimStorePlain]: Start of recursive call 1: 4 dim-0 vars, 1 dim-2 vars, End of recursive call: 3 dim-0 vars, and 1 xjuncts. [2021-07-09 17:06:15,708 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 5 variables, input treesize:70, output treesize:59 [2021-07-09 17:06:16,093 WARN L313 ript$VariableManager]: TermVariabe |thread_usbThread1of1ForFork0_ieee80211_deregister_hw_~#status~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 17:06:16,159 INFO L354 Elim1Store]: treesize reduction 122, result has 27.4 percent of original size [2021-07-09 17:06:16,160 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 6 select indices, 6 select index equivalence classes, 6 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 14 case distinctions, treesize of input 37 treesize of output 69 [2021-07-09 17:06:16,162 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 17:06:16,190 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 17:06:16,194 INFO L550 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-1 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2021-07-09 17:06:16,194 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 4 variables, input treesize:70, output treesize:75 [2021-07-09 17:06:16,315 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 7 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 13 [2021-07-09 17:06:16,316 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 17:06:16,341 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 17:06:16,345 INFO L550 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2021-07-09 17:06:16,345 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 4 variables, input treesize:90, output treesize:75 [2021-07-09 17:06:16,388 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 10 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 41 [2021-07-09 17:06:16,389 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 17:06:16,427 INFO L628 ElimStorePlain]: treesize reduction 16, result has 78.7 percent of original size [2021-07-09 17:06:16,431 INFO L550 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-1 vars, End of recursive call: 3 dim-0 vars, and 1 xjuncts. [2021-07-09 17:06:16,431 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 4 variables, input treesize:81, output treesize:59 [2021-07-09 17:06:16,772 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 5 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 20 [2021-07-09 17:06:16,773 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 17:06:16,793 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 17:06:16,798 INFO L550 ElimStorePlain]: Start of recursive call 1: 6 dim-0 vars, 1 dim-2 vars, End of recursive call: 4 dim-0 vars, and 1 xjuncts. [2021-07-09 17:06:16,798 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 7 variables, input treesize:70, output treesize:59 [2021-07-09 17:06:17,368 WARN L313 ript$VariableManager]: TermVariabe |thread_usbThread1of1ForFork0_ieee80211_deregister_hw_~#status~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 17:06:17,419 INFO L354 Elim1Store]: treesize reduction 40, result has 45.2 percent of original size [2021-07-09 17:06:17,419 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 6 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 9 case distinctions, treesize of input 31 treesize of output 51 [2021-07-09 17:06:17,422 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 17:06:17,443 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 17:06:17,444 INFO L550 ElimStorePlain]: Start of recursive call 1: 4 dim-0 vars, 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-07-09 17:06:17,444 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 5 variables, input treesize:64, output treesize:14 [2021-07-09 17:06:17,486 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 13 [2021-07-09 17:06:17,487 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 17:06:17,491 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 17:06:17,491 INFO L550 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-07-09 17:06:17,491 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:29, output treesize:9 [2021-07-09 17:06:17,587 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 9 [2021-07-09 17:06:17,588 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 17:06:17,589 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 17:06:17,590 INFO L550 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-07-09 17:06:17,590 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:17, output treesize:5 [2021-07-09 17:06:17,907 INFO L134 CoverageAnalysis]: Checked inductivity of 1105 backedges. 20 proven. 1067 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2021-07-09 17:06:17,907 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [446539926] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-09 17:06:17,907 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-07-09 17:06:17,907 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [21, 25] total 43 [2021-07-09 17:06:17,907 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [923743839] [2021-07-09 17:06:17,908 INFO L462 AbstractCegarLoop]: Interpolant automaton has 43 states [2021-07-09 17:06:17,908 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 17:06:17,908 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 43 interpolants. [2021-07-09 17:06:17,908 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=196, Invalid=1610, Unknown=0, NotChecked=0, Total=1806 [2021-07-09 17:06:17,908 INFO L87 Difference]: Start difference. First operand 52202 states and 153920 transitions. Second operand has 43 states, 43 states have (on average 20.13953488372093) internal successors, (866), 43 states have internal predecessors, (866), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 17:06:19,002 WARN L205 SmtUtils]: Spent 130.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 46 [2021-07-09 17:06:19,900 WARN L205 SmtUtils]: Spent 136.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 50 [2021-07-09 17:06:22,154 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 17:06:22,154 INFO L93 Difference]: Finished difference Result 59713 states and 170360 transitions. [2021-07-09 17:06:22,154 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 39 states. [2021-07-09 17:06:22,155 INFO L78 Accepts]: Start accepts. Automaton has has 43 states, 43 states have (on average 20.13953488372093) internal successors, (866), 43 states have internal predecessors, (866), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 461 [2021-07-09 17:06:22,155 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 17:06:22,283 INFO L225 Difference]: With dead ends: 59713 [2021-07-09 17:06:22,283 INFO L226 Difference]: Without dead ends: 59713 [2021-07-09 17:06:22,284 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 524 GetRequests, 445 SyntacticMatches, 6 SemanticMatches, 73 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1419 ImplicationChecksByTransitivity, 3394.8ms TimeCoverageRelationStatistics Valid=561, Invalid=4989, Unknown=0, NotChecked=0, Total=5550 [2021-07-09 17:06:22,419 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 59713 states. [2021-07-09 17:06:23,054 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 59713 to 52982. [2021-07-09 17:06:23,120 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 52982 states, 52980 states have (on average 2.950887127217818) internal successors, (156338), 52981 states have internal predecessors, (156338), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 17:06:23,244 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52982 states to 52982 states and 156338 transitions. [2021-07-09 17:06:23,245 INFO L78 Accepts]: Start accepts. Automaton has 52982 states and 156338 transitions. Word has length 461 [2021-07-09 17:06:23,245 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 17:06:23,245 INFO L482 AbstractCegarLoop]: Abstraction has 52982 states and 156338 transitions. [2021-07-09 17:06:23,245 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 43 states, 43 states have (on average 20.13953488372093) internal successors, (866), 43 states have internal predecessors, (866), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 17:06:23,245 INFO L276 IsEmpty]: Start isEmpty. Operand 52982 states and 156338 transitions. [2021-07-09 17:06:23,335 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 462 [2021-07-09 17:06:23,335 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 17:06:23,336 INFO L508 BasicCegarLoop]: trace histogram [11, 11, 11, 10, 10, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-09 17:06:23,549 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable132,72 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-09 17:06:23,549 INFO L430 AbstractCegarLoop]: === Iteration 81 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-09 17:06:23,549 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 17:06:23,549 INFO L82 PathProgramCache]: Analyzing trace with hash 570022418, now seen corresponding path program 72 times [2021-07-09 17:06:23,549 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 17:06:23,549 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [110048122] [2021-07-09 17:06:23,549 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 17:06:23,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 17:06:25,236 INFO L134 CoverageAnalysis]: Checked inductivity of 1105 backedges. 15 proven. 1066 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2021-07-09 17:06:25,236 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 17:06:25,236 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [110048122] [2021-07-09 17:06:25,236 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [110048122] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-09 17:06:25,236 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [404346584] [2021-07-09 17:06:25,236 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 73 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 73 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-09 17:06:25,956 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 9 check-sat command(s) [2021-07-09 17:06:25,956 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-07-09 17:06:25,960 INFO L263 TraceCheckSpWp]: Trace formula consists of 853 conjuncts, 64 conjunts are in the unsatisfiable core [2021-07-09 17:06:25,963 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-09 17:06:25,974 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 9 [2021-07-09 17:06:25,975 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 17:06:25,976 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 17:06:25,977 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-07-09 17:06:25,977 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:12, output treesize:5 [2021-07-09 17:06:25,992 INFO L354 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2021-07-09 17:06:25,992 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 17 treesize of output 21 [2021-07-09 17:06:25,993 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 17:06:25,997 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 17:06:25,998 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-07-09 17:06:25,998 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:17, output treesize:15 [2021-07-09 17:06:26,050 INFO L354 Elim1Store]: treesize reduction 36, result has 34.5 percent of original size [2021-07-09 17:06:26,050 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 22 treesize of output 33 [2021-07-09 17:06:26,052 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 17:06:26,059 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 17:06:26,060 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2021-07-09 17:06:26,061 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:26, output treesize:28 [2021-07-09 17:06:26,327 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2021-07-09 17:06:26,327 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 17:06:26,337 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 17:06:26,338 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2021-07-09 17:06:26,338 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:41, output treesize:37 [2021-07-09 17:06:26,550 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 20 [2021-07-09 17:06:26,551 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 17:06:26,562 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 17:06:26,564 INFO L550 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2021-07-09 17:06:26,564 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:48, output treesize:37 [2021-07-09 17:06:26,652 INFO L354 Elim1Store]: treesize reduction 54, result has 34.1 percent of original size [2021-07-09 17:06:26,652 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 27 treesize of output 45 [2021-07-09 17:06:26,653 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 17:06:26,668 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 17:06:26,671 INFO L550 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-1 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2021-07-09 17:06:26,671 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:48, output treesize:54 [2021-07-09 17:06:27,372 INFO L354 Elim1Store]: treesize reduction 72, result has 33.9 percent of original size [2021-07-09 17:06:27,372 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 6 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 8 case distinctions, treesize of input 32 treesize of output 57 [2021-07-09 17:06:27,374 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 17:06:27,407 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 17:06:27,410 INFO L550 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-1 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2021-07-09 17:06:27,410 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:65, output treesize:75 [2021-07-09 17:06:27,551 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 7 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 13 [2021-07-09 17:06:27,552 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 17:06:27,578 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 17:06:27,582 INFO L550 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2021-07-09 17:06:27,582 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 4 variables, input treesize:90, output treesize:75 [2021-07-09 17:06:27,619 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 10 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 41 [2021-07-09 17:06:27,621 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 17:06:27,659 INFO L628 ElimStorePlain]: treesize reduction 16, result has 78.7 percent of original size [2021-07-09 17:06:27,663 INFO L550 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-1 vars, End of recursive call: 3 dim-0 vars, and 1 xjuncts. [2021-07-09 17:06:27,663 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 4 variables, input treesize:81, output treesize:59 [2021-07-09 17:06:28,105 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 5 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 20 [2021-07-09 17:06:28,106 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 17:06:28,125 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 17:06:28,129 INFO L550 ElimStorePlain]: Start of recursive call 1: 4 dim-0 vars, 1 dim-2 vars, End of recursive call: 3 dim-0 vars, and 1 xjuncts. [2021-07-09 17:06:28,129 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 5 variables, input treesize:70, output treesize:59 [2021-07-09 17:06:28,543 WARN L313 ript$VariableManager]: TermVariabe |thread_usbThread1of1ForFork0_ieee80211_deregister_hw_~#status~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 17:06:28,610 INFO L354 Elim1Store]: treesize reduction 122, result has 27.4 percent of original size [2021-07-09 17:06:28,610 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 6 select indices, 6 select index equivalence classes, 6 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 14 case distinctions, treesize of input 37 treesize of output 69 [2021-07-09 17:06:28,612 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 17:06:28,641 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 17:06:28,645 INFO L550 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-1 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2021-07-09 17:06:28,645 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 4 variables, input treesize:70, output treesize:75 [2021-07-09 17:06:28,771 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 7 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 13 [2021-07-09 17:06:28,772 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 17:06:28,798 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 17:06:28,801 INFO L550 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2021-07-09 17:06:28,802 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 4 variables, input treesize:90, output treesize:75 [2021-07-09 17:06:28,838 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 10 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 41 [2021-07-09 17:06:28,840 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 17:06:28,878 INFO L628 ElimStorePlain]: treesize reduction 16, result has 78.7 percent of original size [2021-07-09 17:06:28,882 INFO L550 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-1 vars, End of recursive call: 3 dim-0 vars, and 1 xjuncts. [2021-07-09 17:06:28,882 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 4 variables, input treesize:81, output treesize:59 [2021-07-09 17:06:29,236 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 5 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 20 [2021-07-09 17:06:29,237 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 17:06:29,257 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 17:06:29,261 INFO L550 ElimStorePlain]: Start of recursive call 1: 4 dim-0 vars, 1 dim-2 vars, End of recursive call: 3 dim-0 vars, and 1 xjuncts. [2021-07-09 17:06:29,261 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 5 variables, input treesize:70, output treesize:59 [2021-07-09 17:06:29,682 WARN L313 ript$VariableManager]: TermVariabe |thread_usbThread1of1ForFork0_ieee80211_deregister_hw_~#status~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 17:06:29,753 INFO L354 Elim1Store]: treesize reduction 122, result has 27.4 percent of original size [2021-07-09 17:06:29,753 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 6 select indices, 6 select index equivalence classes, 6 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 14 case distinctions, treesize of input 37 treesize of output 69 [2021-07-09 17:06:29,755 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 17:06:29,785 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 17:06:29,790 INFO L550 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-1 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2021-07-09 17:06:29,790 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 4 variables, input treesize:70, output treesize:75 [2021-07-09 17:06:29,915 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 7 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 13 [2021-07-09 17:06:29,916 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 17:06:29,941 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 17:06:29,945 INFO L550 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2021-07-09 17:06:29,945 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 4 variables, input treesize:90, output treesize:75 [2021-07-09 17:06:29,980 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 10 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 41 [2021-07-09 17:06:29,982 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 17:06:30,020 INFO L628 ElimStorePlain]: treesize reduction 16, result has 78.7 percent of original size [2021-07-09 17:06:30,024 INFO L550 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-1 vars, End of recursive call: 3 dim-0 vars, and 1 xjuncts. [2021-07-09 17:06:30,024 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 4 variables, input treesize:81, output treesize:59 [2021-07-09 17:06:30,383 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 5 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 20 [2021-07-09 17:06:30,384 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 17:06:30,403 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 17:06:30,408 INFO L550 ElimStorePlain]: Start of recursive call 1: 6 dim-0 vars, 1 dim-2 vars, End of recursive call: 4 dim-0 vars, and 1 xjuncts. [2021-07-09 17:06:30,408 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 7 variables, input treesize:70, output treesize:59 [2021-07-09 17:06:30,988 WARN L313 ript$VariableManager]: TermVariabe |thread_usbThread1of1ForFork0_ieee80211_deregister_hw_~#status~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 17:06:31,032 INFO L354 Elim1Store]: treesize reduction 40, result has 45.2 percent of original size [2021-07-09 17:06:31,032 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 6 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 9 case distinctions, treesize of input 31 treesize of output 51 [2021-07-09 17:06:31,035 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 17:06:31,056 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 17:06:31,057 INFO L550 ElimStorePlain]: Start of recursive call 1: 4 dim-0 vars, 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-07-09 17:06:31,057 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 5 variables, input treesize:64, output treesize:14 [2021-07-09 17:06:31,102 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 13 [2021-07-09 17:06:31,103 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 17:06:31,107 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 17:06:31,107 INFO L550 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-07-09 17:06:31,107 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:29, output treesize:9 [2021-07-09 17:06:31,144 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 9 [2021-07-09 17:06:31,145 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 17:06:31,146 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 17:06:31,146 INFO L550 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-07-09 17:06:31,146 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:17, output treesize:5 [2021-07-09 17:06:31,599 INFO L134 CoverageAnalysis]: Checked inductivity of 1105 backedges. 20 proven. 1073 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2021-07-09 17:06:31,599 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [404346584] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-09 17:06:31,599 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-07-09 17:06:31,599 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [22, 29] total 48 [2021-07-09 17:06:31,599 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [701409500] [2021-07-09 17:06:31,600 INFO L462 AbstractCegarLoop]: Interpolant automaton has 48 states [2021-07-09 17:06:31,600 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 17:06:31,600 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 48 interpolants. [2021-07-09 17:06:31,600 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=222, Invalid=2034, Unknown=0, NotChecked=0, Total=2256 [2021-07-09 17:06:31,600 INFO L87 Difference]: Start difference. First operand 52982 states and 156338 transitions. Second operand has 48 states, 48 states have (on average 18.145833333333332) internal successors, (871), 48 states have internal predecessors, (871), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 17:06:32,904 WARN L205 SmtUtils]: Spent 129.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 46 [2021-07-09 17:06:33,879 WARN L205 SmtUtils]: Spent 133.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 50 [2021-07-09 17:06:37,306 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 17:06:37,307 INFO L93 Difference]: Finished difference Result 64932 states and 181916 transitions. [2021-07-09 17:06:37,307 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 50 states. [2021-07-09 17:06:37,307 INFO L78 Accepts]: Start accepts. Automaton has has 48 states, 48 states have (on average 18.145833333333332) internal successors, (871), 48 states have internal predecessors, (871), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 461 [2021-07-09 17:06:37,307 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 17:06:37,446 INFO L225 Difference]: With dead ends: 64932 [2021-07-09 17:06:37,447 INFO L226 Difference]: Without dead ends: 64932 [2021-07-09 17:06:37,447 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 539 GetRequests, 444 SyntacticMatches, 8 SemanticMatches, 87 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2217 ImplicationChecksByTransitivity, 4391.9ms TimeCoverageRelationStatistics Valid=719, Invalid=7113, Unknown=0, NotChecked=0, Total=7832 [2021-07-09 17:06:37,596 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 64932 states. [2021-07-09 17:06:38,483 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 64932 to 53015. [2021-07-09 17:06:38,551 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 53015 states, 53013 states have (on average 2.9503706637994456) internal successors, (156408), 53014 states have internal predecessors, (156408), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 17:06:38,678 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53015 states to 53015 states and 156408 transitions. [2021-07-09 17:06:38,678 INFO L78 Accepts]: Start accepts. Automaton has 53015 states and 156408 transitions. Word has length 461 [2021-07-09 17:06:38,678 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 17:06:38,678 INFO L482 AbstractCegarLoop]: Abstraction has 53015 states and 156408 transitions. [2021-07-09 17:06:38,679 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 48 states, 48 states have (on average 18.145833333333332) internal successors, (871), 48 states have internal predecessors, (871), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 17:06:38,679 INFO L276 IsEmpty]: Start isEmpty. Operand 53015 states and 156408 transitions. [2021-07-09 17:06:38,774 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 462 [2021-07-09 17:06:38,774 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 17:06:38,774 INFO L508 BasicCegarLoop]: trace histogram [11, 11, 11, 10, 10, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-09 17:06:38,993 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 73 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable134 [2021-07-09 17:06:38,994 INFO L430 AbstractCegarLoop]: === Iteration 82 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-09 17:06:38,994 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 17:06:38,994 INFO L82 PathProgramCache]: Analyzing trace with hash -637759856, now seen corresponding path program 73 times [2021-07-09 17:06:38,994 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 17:06:38,994 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1841801240] [2021-07-09 17:06:38,995 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 17:06:39,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 17:06:40,558 WARN L205 SmtUtils]: Spent 237.00 ms on a formula simplification. DAG size of input: 45 DAG size of output: 18 [2021-07-09 17:06:40,561 INFO L134 CoverageAnalysis]: Checked inductivity of 1105 backedges. 15 proven. 1066 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2021-07-09 17:06:40,561 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 17:06:40,561 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1841801240] [2021-07-09 17:06:40,561 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1841801240] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-09 17:06:40,561 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [678107551] [2021-07-09 17:06:40,561 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 74 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 74 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-09 17:06:40,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 17:06:40,765 INFO L263 TraceCheckSpWp]: Trace formula consists of 853 conjuncts, 62 conjunts are in the unsatisfiable core [2021-07-09 17:06:40,768 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-09 17:06:40,781 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2021-07-09 17:06:40,782 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 17:06:40,783 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 17:06:40,783 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-07-09 17:06:40,783 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:6, output treesize:5 [2021-07-09 17:06:40,800 INFO L354 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2021-07-09 17:06:40,800 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 17 treesize of output 21 [2021-07-09 17:06:40,802 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 17:06:40,806 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 17:06:40,806 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-07-09 17:06:40,806 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:17, output treesize:15 [2021-07-09 17:06:40,860 INFO L354 Elim1Store]: treesize reduction 36, result has 34.5 percent of original size [2021-07-09 17:06:40,860 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 22 treesize of output 33 [2021-07-09 17:06:40,862 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 17:06:40,870 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 17:06:40,871 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2021-07-09 17:06:40,871 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:26, output treesize:28 [2021-07-09 17:06:41,151 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2021-07-09 17:06:41,152 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 17:06:41,162 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 17:06:41,163 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2021-07-09 17:06:41,163 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:41, output treesize:37 [2021-07-09 17:06:41,447 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 20 [2021-07-09 17:06:41,448 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 17:06:41,459 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 17:06:41,460 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2021-07-09 17:06:41,460 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:53, output treesize:49 [2021-07-09 17:06:41,601 INFO L354 Elim1Store]: treesize reduction 54, result has 34.1 percent of original size [2021-07-09 17:06:41,601 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 27 treesize of output 45 [2021-07-09 17:06:41,602 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 17:06:41,620 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 17:06:41,623 INFO L550 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-1 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2021-07-09 17:06:41,623 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:60, output treesize:66 [2021-07-09 17:06:42,417 INFO L354 Elim1Store]: treesize reduction 72, result has 33.9 percent of original size [2021-07-09 17:06:42,417 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 6 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 8 case distinctions, treesize of input 32 treesize of output 57 [2021-07-09 17:06:42,419 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 17:06:42,453 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 17:06:42,457 INFO L550 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-1 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2021-07-09 17:06:42,457 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:81, output treesize:91 [2021-07-09 17:06:42,796 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 9 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 45 treesize of output 32 [2021-07-09 17:06:42,797 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 17:06:42,830 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 17:06:42,833 INFO L550 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2021-07-09 17:06:42,833 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 4 variables, input treesize:110, output treesize:95 [2021-07-09 17:06:42,871 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 10 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 41 [2021-07-09 17:06:42,872 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 17:06:42,921 INFO L628 ElimStorePlain]: treesize reduction 16, result has 83.2 percent of original size [2021-07-09 17:06:42,933 INFO L550 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-1 vars, End of recursive call: 3 dim-0 vars, and 1 xjuncts. [2021-07-09 17:06:42,933 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 4 variables, input treesize:101, output treesize:79 [2021-07-09 17:06:43,404 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 5 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 32 [2021-07-09 17:06:43,406 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 17:06:43,429 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 17:06:43,433 INFO L550 ElimStorePlain]: Start of recursive call 1: 4 dim-0 vars, 1 dim-2 vars, End of recursive call: 3 dim-0 vars, and 1 xjuncts. [2021-07-09 17:06:43,433 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 5 variables, input treesize:90, output treesize:66 [2021-07-09 17:06:43,948 WARN L313 ript$VariableManager]: TermVariabe |thread_usbThread1of1ForFork0_ieee80211_deregister_hw_~#status~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 17:06:44,017 INFO L354 Elim1Store]: treesize reduction 122, result has 27.4 percent of original size [2021-07-09 17:06:44,017 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 6 select indices, 6 select index equivalence classes, 6 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 14 case distinctions, treesize of input 37 treesize of output 69 [2021-07-09 17:06:44,019 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 17:06:44,053 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 17:06:44,058 INFO L550 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-1 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2021-07-09 17:06:44,058 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 4 variables, input treesize:77, output treesize:82 [2021-07-09 17:06:44,197 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 7 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 13 [2021-07-09 17:06:44,198 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 17:06:44,228 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 17:06:44,232 INFO L550 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2021-07-09 17:06:44,232 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 4 variables, input treesize:97, output treesize:82 [2021-07-09 17:06:44,270 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 10 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 41 [2021-07-09 17:06:44,271 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 17:06:44,318 INFO L628 ElimStorePlain]: treesize reduction 16, result has 80.5 percent of original size [2021-07-09 17:06:44,321 INFO L550 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-1 vars, End of recursive call: 3 dim-0 vars, and 1 xjuncts. [2021-07-09 17:06:44,321 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 4 variables, input treesize:88, output treesize:66 [2021-07-09 17:06:44,687 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 5 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 20 [2021-07-09 17:06:44,689 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 17:06:44,712 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 17:06:44,716 INFO L550 ElimStorePlain]: Start of recursive call 1: 4 dim-0 vars, 1 dim-2 vars, End of recursive call: 3 dim-0 vars, and 1 xjuncts. [2021-07-09 17:06:44,716 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 5 variables, input treesize:77, output treesize:66 [2021-07-09 17:06:45,136 WARN L313 ript$VariableManager]: TermVariabe |thread_usbThread1of1ForFork0_ieee80211_deregister_hw_~#status~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 17:06:45,206 INFO L354 Elim1Store]: treesize reduction 122, result has 27.4 percent of original size [2021-07-09 17:06:45,207 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 6 select indices, 6 select index equivalence classes, 6 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 14 case distinctions, treesize of input 37 treesize of output 69 [2021-07-09 17:06:45,209 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 17:06:45,243 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 17:06:45,247 INFO L550 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-1 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2021-07-09 17:06:45,248 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 4 variables, input treesize:77, output treesize:82 [2021-07-09 17:06:45,387 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 7 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 13 [2021-07-09 17:06:45,388 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 17:06:45,417 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 17:06:45,421 INFO L550 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2021-07-09 17:06:45,421 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 4 variables, input treesize:97, output treesize:82 [2021-07-09 17:06:45,459 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 10 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 41 [2021-07-09 17:06:45,460 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 17:06:45,507 INFO L628 ElimStorePlain]: treesize reduction 16, result has 80.5 percent of original size [2021-07-09 17:06:45,511 INFO L550 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-1 vars, End of recursive call: 3 dim-0 vars, and 1 xjuncts. [2021-07-09 17:06:45,511 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 4 variables, input treesize:88, output treesize:66 [2021-07-09 17:06:45,883 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 5 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 20 [2021-07-09 17:06:45,885 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 17:06:45,908 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 17:06:45,913 INFO L550 ElimStorePlain]: Start of recursive call 1: 6 dim-0 vars, 1 dim-2 vars, End of recursive call: 4 dim-0 vars, and 1 xjuncts. [2021-07-09 17:06:45,913 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 7 variables, input treesize:77, output treesize:66 [2021-07-09 17:06:46,527 WARN L313 ript$VariableManager]: TermVariabe |thread_usbThread1of1ForFork0_ieee80211_deregister_hw_~#status~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 17:06:46,572 INFO L354 Elim1Store]: treesize reduction 40, result has 45.2 percent of original size [2021-07-09 17:06:46,572 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 6 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 9 case distinctions, treesize of input 31 treesize of output 51 [2021-07-09 17:06:46,575 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 17:06:46,599 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 17:06:46,600 INFO L550 ElimStorePlain]: Start of recursive call 1: 4 dim-0 vars, 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-07-09 17:06:46,600 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 5 variables, input treesize:71, output treesize:21 [2021-07-09 17:06:46,653 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 13 [2021-07-09 17:06:46,654 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 17:06:46,660 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 17:06:46,660 INFO L550 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-07-09 17:06:46,661 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:36, output treesize:17 [2021-07-09 17:06:46,786 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 16 [2021-07-09 17:06:46,787 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 17:06:46,790 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 17:06:46,791 INFO L550 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-07-09 17:06:46,791 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:28, output treesize:13 [2021-07-09 17:06:47,066 INFO L134 CoverageAnalysis]: Checked inductivity of 1105 backedges. 15 proven. 1072 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2021-07-09 17:06:47,066 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [678107551] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-09 17:06:47,066 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-07-09 17:06:47,066 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [22, 31] total 50 [2021-07-09 17:06:47,066 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [465478515] [2021-07-09 17:06:47,069 INFO L462 AbstractCegarLoop]: Interpolant automaton has 50 states [2021-07-09 17:06:47,069 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 17:06:47,069 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 50 interpolants. [2021-07-09 17:06:47,069 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=240, Invalid=2210, Unknown=0, NotChecked=0, Total=2450 [2021-07-09 17:06:47,070 INFO L87 Difference]: Start difference. First operand 53015 states and 156408 transitions. Second operand has 50 states, 50 states have (on average 17.32) internal successors, (866), 50 states have internal predecessors, (866), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 17:06:49,346 WARN L205 SmtUtils]: Spent 163.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 53 [2021-07-09 17:06:50,931 WARN L205 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 62 [2021-07-09 17:06:54,480 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 17:06:54,480 INFO L93 Difference]: Finished difference Result 70132 states and 196649 transitions. [2021-07-09 17:06:54,480 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 65 states. [2021-07-09 17:06:54,480 INFO L78 Accepts]: Start accepts. Automaton has has 50 states, 50 states have (on average 17.32) internal successors, (866), 50 states have internal predecessors, (866), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 461 [2021-07-09 17:06:54,481 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 17:06:54,633 INFO L225 Difference]: With dead ends: 70132 [2021-07-09 17:06:54,633 INFO L226 Difference]: Without dead ends: 70132 [2021-07-09 17:06:54,634 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 553 GetRequests, 443 SyntacticMatches, 8 SemanticMatches, 102 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3058 ImplicationChecksByTransitivity, 6036.1ms TimeCoverageRelationStatistics Valid=897, Invalid=9815, Unknown=0, NotChecked=0, Total=10712 [2021-07-09 17:06:54,797 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 70132 states. [2021-07-09 17:06:55,728 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 70132 to 53795. [2021-07-09 17:06:55,796 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 53795 states, 53793 states have (on average 2.952540293346718) internal successors, (158826), 53794 states have internal predecessors, (158826), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 17:06:55,928 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53795 states to 53795 states and 158826 transitions. [2021-07-09 17:06:55,928 INFO L78 Accepts]: Start accepts. Automaton has 53795 states and 158826 transitions. Word has length 461 [2021-07-09 17:06:55,929 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 17:06:55,929 INFO L482 AbstractCegarLoop]: Abstraction has 53795 states and 158826 transitions. [2021-07-09 17:06:55,929 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 50 states, 50 states have (on average 17.32) internal successors, (866), 50 states have internal predecessors, (866), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 17:06:55,929 INFO L276 IsEmpty]: Start isEmpty. Operand 53795 states and 158826 transitions. [2021-07-09 17:06:56,024 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 462 [2021-07-09 17:06:56,025 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 17:06:56,025 INFO L508 BasicCegarLoop]: trace histogram [11, 11, 11, 10, 10, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-09 17:06:56,242 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable137,74 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-09 17:06:56,242 INFO L430 AbstractCegarLoop]: === Iteration 83 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-09 17:06:56,242 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 17:06:56,243 INFO L82 PathProgramCache]: Analyzing trace with hash -1566503076, now seen corresponding path program 74 times [2021-07-09 17:06:56,243 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 17:06:56,243 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1990226039] [2021-07-09 17:06:56,243 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 17:06:56,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 17:06:57,562 INFO L134 CoverageAnalysis]: Checked inductivity of 1105 backedges. 15 proven. 1072 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2021-07-09 17:06:57,563 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 17:06:57,563 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1990226039] [2021-07-09 17:06:57,563 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1990226039] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-09 17:06:57,563 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [388739974] [2021-07-09 17:06:57,563 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 75 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 75 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-09 17:06:57,776 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-07-09 17:06:57,776 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-07-09 17:06:57,779 INFO L263 TraceCheckSpWp]: Trace formula consists of 853 conjuncts, 65 conjunts are in the unsatisfiable core [2021-07-09 17:06:57,782 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-09 17:06:57,793 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2021-07-09 17:06:57,793 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 17:06:57,795 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 17:06:57,795 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-07-09 17:06:57,795 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:6, output treesize:5 [2021-07-09 17:06:57,811 INFO L354 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2021-07-09 17:06:57,811 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 17 treesize of output 21 [2021-07-09 17:06:57,812 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 17:06:57,816 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 17:06:57,816 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-07-09 17:06:57,817 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:17, output treesize:15 [2021-07-09 17:06:58,008 INFO L354 Elim1Store]: treesize reduction 36, result has 34.5 percent of original size [2021-07-09 17:06:58,008 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 22 treesize of output 33 [2021-07-09 17:06:58,010 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 17:06:58,018 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 17:06:58,019 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2021-07-09 17:06:58,019 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:26, output treesize:28 [2021-07-09 17:06:58,299 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2021-07-09 17:06:58,299 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 17:06:58,309 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 17:06:58,310 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2021-07-09 17:06:58,310 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:41, output treesize:37 [2021-07-09 17:06:58,520 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 20 [2021-07-09 17:06:58,521 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 17:06:58,531 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 17:06:58,532 INFO L550 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2021-07-09 17:06:58,532 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:48, output treesize:37 [2021-07-09 17:06:58,602 INFO L354 Elim1Store]: treesize reduction 54, result has 34.1 percent of original size [2021-07-09 17:06:58,602 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 27 treesize of output 45 [2021-07-09 17:06:58,603 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 17:06:58,618 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 17:06:58,621 INFO L550 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-1 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2021-07-09 17:06:58,621 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:48, output treesize:54 [2021-07-09 17:06:59,332 INFO L354 Elim1Store]: treesize reduction 72, result has 33.9 percent of original size [2021-07-09 17:06:59,332 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 6 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 8 case distinctions, treesize of input 32 treesize of output 57 [2021-07-09 17:06:59,334 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 17:06:59,358 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 17:06:59,361 INFO L550 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-1 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2021-07-09 17:06:59,361 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:65, output treesize:75 [2021-07-09 17:06:59,492 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 7 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 13 [2021-07-09 17:06:59,493 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 17:06:59,519 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 17:06:59,522 INFO L550 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2021-07-09 17:06:59,522 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 4 variables, input treesize:90, output treesize:75 [2021-07-09 17:06:59,560 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 10 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 41 [2021-07-09 17:06:59,561 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 17:06:59,600 INFO L628 ElimStorePlain]: treesize reduction 16, result has 78.7 percent of original size [2021-07-09 17:06:59,603 INFO L550 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-1 vars, End of recursive call: 3 dim-0 vars, and 1 xjuncts. [2021-07-09 17:06:59,604 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 4 variables, input treesize:81, output treesize:59 [2021-07-09 17:07:00,057 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 5 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 20 [2021-07-09 17:07:00,058 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 17:07:00,078 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 17:07:00,082 INFO L550 ElimStorePlain]: Start of recursive call 1: 4 dim-0 vars, 1 dim-2 vars, End of recursive call: 3 dim-0 vars, and 1 xjuncts. [2021-07-09 17:07:00,082 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 5 variables, input treesize:70, output treesize:59 [2021-07-09 17:07:00,502 WARN L313 ript$VariableManager]: TermVariabe |thread_usbThread1of1ForFork0_ieee80211_deregister_hw_~#status~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 17:07:00,573 INFO L354 Elim1Store]: treesize reduction 122, result has 27.4 percent of original size [2021-07-09 17:07:00,573 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 6 select indices, 6 select index equivalence classes, 6 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 14 case distinctions, treesize of input 37 treesize of output 69 [2021-07-09 17:07:00,576 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 17:07:00,606 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 17:07:00,611 INFO L550 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-1 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2021-07-09 17:07:00,611 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 4 variables, input treesize:70, output treesize:75 [2021-07-09 17:07:00,743 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 7 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 13 [2021-07-09 17:07:00,744 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 17:07:00,769 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 17:07:00,773 INFO L550 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2021-07-09 17:07:00,773 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 4 variables, input treesize:90, output treesize:75 [2021-07-09 17:07:00,809 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 10 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 41 [2021-07-09 17:07:00,811 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 17:07:00,849 INFO L628 ElimStorePlain]: treesize reduction 16, result has 78.7 percent of original size [2021-07-09 17:07:00,852 INFO L550 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-1 vars, End of recursive call: 3 dim-0 vars, and 1 xjuncts. [2021-07-09 17:07:00,853 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 4 variables, input treesize:81, output treesize:59 [2021-07-09 17:07:01,197 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 5 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 20 [2021-07-09 17:07:01,198 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 17:07:01,218 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 17:07:01,222 INFO L550 ElimStorePlain]: Start of recursive call 1: 4 dim-0 vars, 1 dim-2 vars, End of recursive call: 3 dim-0 vars, and 1 xjuncts. [2021-07-09 17:07:01,222 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 5 variables, input treesize:70, output treesize:59 [2021-07-09 17:07:01,644 WARN L313 ript$VariableManager]: TermVariabe |thread_usbThread1of1ForFork0_ieee80211_deregister_hw_~#status~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 17:07:01,712 INFO L354 Elim1Store]: treesize reduction 122, result has 27.4 percent of original size [2021-07-09 17:07:01,713 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 6 select indices, 6 select index equivalence classes, 6 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 14 case distinctions, treesize of input 37 treesize of output 69 [2021-07-09 17:07:01,714 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 17:07:01,744 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 17:07:01,748 INFO L550 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-1 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2021-07-09 17:07:01,748 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 4 variables, input treesize:70, output treesize:75 [2021-07-09 17:07:01,884 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 7 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 13 [2021-07-09 17:07:01,885 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 17:07:01,911 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 17:07:01,915 INFO L550 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2021-07-09 17:07:01,916 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 4 variables, input treesize:90, output treesize:75 [2021-07-09 17:07:01,953 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 10 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 41 [2021-07-09 17:07:01,954 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 17:07:01,993 INFO L628 ElimStorePlain]: treesize reduction 16, result has 78.7 percent of original size [2021-07-09 17:07:01,996 INFO L550 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-1 vars, End of recursive call: 3 dim-0 vars, and 1 xjuncts. [2021-07-09 17:07:01,996 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 4 variables, input treesize:81, output treesize:59 [2021-07-09 17:07:02,362 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 5 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 20 [2021-07-09 17:07:02,363 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 17:07:02,384 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 17:07:02,388 INFO L550 ElimStorePlain]: Start of recursive call 1: 4 dim-0 vars, 1 dim-2 vars, End of recursive call: 3 dim-0 vars, and 1 xjuncts. [2021-07-09 17:07:02,388 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 5 variables, input treesize:70, output treesize:59 [2021-07-09 17:07:02,811 WARN L313 ript$VariableManager]: TermVariabe |thread_usbThread1of1ForFork0_ieee80211_deregister_hw_~#status~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 17:07:02,879 INFO L354 Elim1Store]: treesize reduction 122, result has 27.4 percent of original size [2021-07-09 17:07:02,879 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 6 select indices, 6 select index equivalence classes, 6 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 14 case distinctions, treesize of input 37 treesize of output 69 [2021-07-09 17:07:02,881 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 17:07:02,910 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 17:07:02,915 INFO L550 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-1 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2021-07-09 17:07:02,915 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 4 variables, input treesize:70, output treesize:75 [2021-07-09 17:07:03,075 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 7 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 13 [2021-07-09 17:07:03,076 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 17:07:03,102 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 17:07:03,105 INFO L550 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2021-07-09 17:07:03,105 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 4 variables, input treesize:90, output treesize:75 [2021-07-09 17:07:03,139 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 10 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 41 [2021-07-09 17:07:03,140 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 17:07:03,178 INFO L628 ElimStorePlain]: treesize reduction 16, result has 78.7 percent of original size [2021-07-09 17:07:03,181 INFO L550 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-1 vars, End of recursive call: 3 dim-0 vars, and 1 xjuncts. [2021-07-09 17:07:03,181 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 4 variables, input treesize:81, output treesize:59 [2021-07-09 17:07:03,540 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 5 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 20 [2021-07-09 17:07:03,542 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 17:07:03,561 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 17:07:03,567 INFO L550 ElimStorePlain]: Start of recursive call 1: 6 dim-0 vars, 1 dim-2 vars, End of recursive call: 4 dim-0 vars, and 1 xjuncts. [2021-07-09 17:07:03,567 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 7 variables, input treesize:70, output treesize:59 [2021-07-09 17:07:04,171 WARN L313 ript$VariableManager]: TermVariabe |thread_usbThread1of1ForFork0_ieee80211_deregister_hw_~#status~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 17:07:04,215 INFO L354 Elim1Store]: treesize reduction 40, result has 45.2 percent of original size [2021-07-09 17:07:04,215 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 6 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 9 case distinctions, treesize of input 31 treesize of output 51 [2021-07-09 17:07:04,218 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 17:07:04,240 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 17:07:04,241 INFO L550 ElimStorePlain]: Start of recursive call 1: 4 dim-0 vars, 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-07-09 17:07:04,241 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 5 variables, input treesize:64, output treesize:14 [2021-07-09 17:07:04,291 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 13 [2021-07-09 17:07:04,292 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 17:07:04,295 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 17:07:04,296 INFO L550 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-07-09 17:07:04,296 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:29, output treesize:9 [2021-07-09 17:07:04,337 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 9 [2021-07-09 17:07:04,338 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 17:07:04,348 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 17:07:04,348 INFO L550 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-07-09 17:07:04,348 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:17, output treesize:5 [2021-07-09 17:07:04,520 INFO L134 CoverageAnalysis]: Checked inductivity of 1105 backedges. 20 proven. 1067 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2021-07-09 17:07:04,521 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [388739974] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-09 17:07:04,521 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-07-09 17:07:04,521 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [24, 27] total 48 [2021-07-09 17:07:04,521 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [344055593] [2021-07-09 17:07:04,521 INFO L462 AbstractCegarLoop]: Interpolant automaton has 48 states [2021-07-09 17:07:04,521 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 17:07:04,522 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 48 interpolants. [2021-07-09 17:07:04,522 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=227, Invalid=2029, Unknown=0, NotChecked=0, Total=2256 [2021-07-09 17:07:04,522 INFO L87 Difference]: Start difference. First operand 53795 states and 158826 transitions. Second operand has 48 states, 48 states have (on average 18.145833333333332) internal successors, (871), 48 states have internal predecessors, (871), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Received shutdown request... [2021-07-09 17:07:05,356 WARN L222 SmtUtils]: Removed 2 from assertion stack [2021-07-09 17:07:05,357 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-07-09 17:07:05,557 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable140,75 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-09 17:07:05,557 WARN L547 AbstractCegarLoop]: Verification canceled [2021-07-09 17:07:05,558 INFO L301 ceAbstractionStarter]: Result for error location ULTIMATE.start was TIMEOUT (1/3) [2021-07-09 17:07:05,559 INFO L255 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-07-09 17:07:05,560 INFO L378 AbstractCegarLoop]: Interprodecural is true [2021-07-09 17:07:05,560 INFO L379 AbstractCegarLoop]: Hoare is false [2021-07-09 17:07:05,560 INFO L380 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-07-09 17:07:05,560 INFO L381 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-07-09 17:07:05,560 INFO L382 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-07-09 17:07:05,560 INFO L383 AbstractCegarLoop]: Difference is false [2021-07-09 17:07:05,560 INFO L384 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-07-09 17:07:05,560 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == thread_ath9kThread1of1ForFork1======== [2021-07-09 17:07:05,562 INFO L110 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 272 places, 308 transitions, 658 flow [2021-07-09 17:07:05,563 WARN L547 AbstractCegarLoop]: Verification canceled [2021-07-09 17:07:05,563 INFO L301 ceAbstractionStarter]: Result for error location thread_ath9kThread1of1ForFork1 was TIMEOUT (2/3) [2021-07-09 17:07:05,563 INFO L255 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2021-07-09 17:07:05,563 INFO L378 AbstractCegarLoop]: Interprodecural is true [2021-07-09 17:07:05,563 INFO L379 AbstractCegarLoop]: Hoare is false [2021-07-09 17:07:05,563 INFO L380 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-07-09 17:07:05,563 INFO L381 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-07-09 17:07:05,563 INFO L382 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-07-09 17:07:05,563 INFO L383 AbstractCegarLoop]: Difference is false [2021-07-09 17:07:05,563 INFO L384 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-07-09 17:07:05,563 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == thread_usbThread1of1ForFork0======== [2021-07-09 17:07:05,577 INFO L110 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 272 places, 308 transitions, 658 flow [2021-07-09 17:07:05,578 WARN L547 AbstractCegarLoop]: Verification canceled [2021-07-09 17:07:05,578 INFO L301 ceAbstractionStarter]: Result for error location thread_usbThread1of1ForFork0 was TIMEOUT (3/3) [2021-07-09 17:07:05,579 INFO L247 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2021-07-09 17:07:05,597 WARN L196 ceAbstractionStarter]: Timeout [2021-07-09 17:07:05,598 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 09.07 05:07:05 BasicIcfg [2021-07-09 17:07:05,598 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-07-09 17:07:05,598 INFO L168 Benchmark]: Toolchain (without parser) took 840694.02 ms. Allocated memory was 232.8 MB in the beginning and 8.0 GB in the end (delta: 7.8 GB). Free memory was 192.0 MB in the beginning and 5.6 GB in the end (delta: -5.4 GB). Peak memory consumption was 2.4 GB. Max. memory is 8.0 GB. [2021-07-09 17:07:05,598 INFO L168 Benchmark]: CDTParser took 0.13 ms. Allocated memory is still 232.8 MB. Free memory was 212.1 MB in the beginning and 212.1 MB in the end (delta: 73.8 kB). There was no memory consumed. Max. memory is 8.0 GB. [2021-07-09 17:07:05,598 INFO L168 Benchmark]: CACSL2BoogieTranslator took 652.23 ms. Allocated memory is still 232.8 MB. Free memory was 191.8 MB in the beginning and 169.8 MB in the end (delta: 21.9 MB). Peak memory consumption was 23.9 MB. Max. memory is 8.0 GB. [2021-07-09 17:07:05,598 INFO L168 Benchmark]: Boogie Procedure Inliner took 42.50 ms. Allocated memory is still 232.8 MB. Free memory was 169.8 MB in the beginning and 166.4 MB in the end (delta: 3.5 MB). Peak memory consumption was 4.2 MB. Max. memory is 8.0 GB. [2021-07-09 17:07:05,598 INFO L168 Benchmark]: Boogie Preprocessor took 46.09 ms. Allocated memory was 232.8 MB in the beginning and 296.7 MB in the end (delta: 64.0 MB). Free memory was 166.4 MB in the beginning and 276.5 MB in the end (delta: -110.1 MB). Peak memory consumption was 5.0 MB. Max. memory is 8.0 GB. [2021-07-09 17:07:05,598 INFO L168 Benchmark]: RCFGBuilder took 578.99 ms. Allocated memory is still 296.7 MB. Free memory was 276.5 MB in the beginning and 224.6 MB in the end (delta: 51.9 MB). Peak memory consumption was 51.4 MB. Max. memory is 8.0 GB. [2021-07-09 17:07:05,598 INFO L168 Benchmark]: TraceAbstraction took 839354.44 ms. Allocated memory was 296.7 MB in the beginning and 8.0 GB in the end (delta: 7.7 GB). Free memory was 224.1 MB in the beginning and 5.6 GB in the end (delta: -5.4 GB). Peak memory consumption was 2.3 GB. Max. memory is 8.0 GB. [2021-07-09 17:07:05,600 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.13 ms. Allocated memory is still 232.8 MB. Free memory was 212.1 MB in the beginning and 212.1 MB in the end (delta: 73.8 kB). There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 652.23 ms. Allocated memory is still 232.8 MB. Free memory was 191.8 MB in the beginning and 169.8 MB in the end (delta: 21.9 MB). Peak memory consumption was 23.9 MB. Max. memory is 8.0 GB. * Boogie Procedure Inliner took 42.50 ms. Allocated memory is still 232.8 MB. Free memory was 169.8 MB in the beginning and 166.4 MB in the end (delta: 3.5 MB). Peak memory consumption was 4.2 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 46.09 ms. Allocated memory was 232.8 MB in the beginning and 296.7 MB in the end (delta: 64.0 MB). Free memory was 166.4 MB in the beginning and 276.5 MB in the end (delta: -110.1 MB). Peak memory consumption was 5.0 MB. Max. memory is 8.0 GB. * RCFGBuilder took 578.99 ms. Allocated memory is still 296.7 MB. Free memory was 276.5 MB in the beginning and 224.6 MB in the end (delta: 51.9 MB). Peak memory consumption was 51.4 MB. Max. memory is 8.0 GB. * TraceAbstraction took 839354.44 ms. Allocated memory was 296.7 MB in the beginning and 8.0 GB in the end (delta: 7.7 GB). Free memory was 224.1 MB in the beginning and 5.6 GB in the end (delta: -5.4 GB). Peak memory consumption was 2.3 GB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 1693]: Timeout (TraceAbstraction) Unable to prove that call to reach_error is unreachable Cancelled while BasicCegarLoop was constructing difference of abstraction (53795states) and FLOYD_HOARE automaton (currently 9 states, 48 states before enhancement),while PredicateUnifier was unifying predicates,while SimplifyDDAWithTimeout was simplifying term of DAG size 28 for 12ms.. - TimeoutResultAtElement [Line: 1693]: Timeout (TraceAbstraction) Unable to prove that call to reach_error is unreachable Cancelled while BasicCegarLoop was constructing difference of abstraction (53795states) and FLOYD_HOARE automaton (currently 9 states, 48 states before enhancement),while PredicateUnifier was unifying predicates,while SimplifyDDAWithTimeout was simplifying term of DAG size 28 for 12ms.. - TimeoutResultAtElement [Line: 1693]: Timeout (TraceAbstraction) Unable to prove that call to reach_error is unreachable Cancelled while BasicCegarLoop was constructing difference of abstraction (53795states) and FLOYD_HOARE automaton (currently 9 states, 48 states before enhancement),while PredicateUnifier was unifying predicates,while SimplifyDDAWithTimeout was simplifying term of DAG size 28 for 12ms.. - TimeoutResultAtElement [Line: 1693]: Timeout (TraceAbstraction) Unable to prove that call to reach_error is unreachable Cancelled while BasicCegarLoop was constructing initial abstraction,while PetriNet2FiniteAutomaton was constructing automaton for Petri net that has has 272 places, 308 transitions, 658 flow. Already constructed 2 states. Currently 1 states in worklist.. - TimeoutResultAtElement [Line: 1693]: Timeout (TraceAbstraction) Unable to prove that call to reach_error is unreachable Cancelled while BasicCegarLoop was constructing initial abstraction,while PetriNet2FiniteAutomaton was constructing automaton for Petri net that has has 272 places, 308 transitions, 658 flow. Already constructed 2 states. Currently 1 states in worklist.. - TimeoutResultAtElement [Line: 1693]: Timeout (TraceAbstraction) Unable to prove that call to reach_error is unreachable Cancelled while BasicCegarLoop was constructing initial abstraction,while PetriNet2FiniteAutomaton was constructing automaton for Petri net that has has 272 places, 308 transitions, 658 flow. Already constructed 2 states. Currently 1 states in worklist.. - TimeoutResultAtElement [Line: 1693]: Timeout (TraceAbstraction) Unable to prove that call to reach_error is unreachable Cancelled while BasicCegarLoop was constructing initial abstraction,while PetriNet2FiniteAutomaton was constructing automaton for Petri net that has has 272 places, 308 transitions, 658 flow. Already constructed 2 states. Currently 1 states in worklist.. - StatisticsResult: Ultimate Automizer benchmark data for errors in thread instance: ULTIMATE.start with 1 thread instances CFG has 5 procedures, 295 locations, 14 error locations. Started 1 CEGAR loops. VerificationResult: TIMEOUT, OverallTime: 839151.8ms, OverallIterations: 83, TraceHistogramMax: 11, EmptinessCheckTime: 6770.4ms, AutomataDifference: 390803.6ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 1436.0ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 61394 SDtfs, 164260 SDslu, 1095129 SDs, 0 SdLazy, 191357 SolverSat, 8234 SolverUnsat, 42 SolverUnknown, 0 SolverNotchecked, 211916.8ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 30484 GetRequests, 24829 SyntacticMatches, 428 SemanticMatches, 5226 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 110371 ImplicationChecksByTransitivity, 230347.8ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=53829occurred in iteration=69, InterpolantAutomatonStates: 3098, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: 80313.9ms AutomataMinimizationTime, 82 MinimizatonAttempts, 927451 StatesRemovedByMinimization, 80 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 2580.6ms SsaConstructionTime, 17300.6ms SatisfiabilityAnalysisTime, 317510.9ms InterpolantComputationTime, 52437 NumberOfCodeBlocks, 52389 NumberOfCodeBlocksAsserted, 406 NumberOfCheckSat, 52280 ConstructedInterpolants, 13785 QuantifiedInterpolants, 1685906 SizeOfPredicates, 1529 NumberOfNonLiveVariables, 48542 ConjunctsInSsa, 3328 ConjunctsInUnsatCore, 157 InterpolantComputations, 9 PerfectInterpolantSequences, 3538/86674 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - StatisticsResult: Ultimate Automizer benchmark data for errors in thread instance: thread_ath9kThread1of1ForFork1 with 1 thread instances CFG has 5 procedures, 295 locations, 14 error locations. Started 1 CEGAR loops. VerificationResult: TIMEOUT, OverallTime: 3.2ms, OverallIterations: 0, TraceHistogramMax: 0, EmptinessCheckTime: 0.0ms, AutomataDifference: 0.0ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 2.8ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: No data available, PredicateUnifierStatistics: No data available, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, InterpolantAutomatonStates: 0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: No data available, ReuseStatistics: No data available - StatisticsResult: Ultimate Automizer benchmark data for errors in thread instance: thread_usbThread1of1ForFork0 with 1 thread instances CFG has 5 procedures, 295 locations, 14 error locations. Started 1 CEGAR loops. VerificationResult: TIMEOUT, OverallTime: 14.5ms, OverallIterations: 0, TraceHistogramMax: 0, EmptinessCheckTime: 0.0ms, AutomataDifference: 0.0ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 14.2ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: No data available, PredicateUnifierStatistics: No data available, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, InterpolantAutomatonStates: 0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown