/usr/bin/java -Xmx16000000000 -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/concurrent/pthreads/distributed_search2.c -------------------------------------------------------------------------------- This is Ultimate 0.2.1-dev-29289db [2021-06-05 03:01:13,851 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-06-05 03:01:13,853 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-06-05 03:01:13,892 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2021-06-05 03:01:13,949 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-06-05 03:01:13,950 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-06-05 03:01:13,950 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-06-05 03:01:13,951 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 [2021-06-05 03:01:13,989 INFO L113 SettingsManager]: Loading preferences was successful [2021-06-05 03:01:13,989 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-06-05 03:01:13,989 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-06-05 03:01:13,989 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-06-05 03:01:13,992 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-06-05 03:01:13,992 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-06-05 03:01:13,992 INFO L138 SettingsManager]: * Use SBE=true [2021-06-05 03:01:13,992 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-06-05 03:01:13,992 INFO L138 SettingsManager]: * sizeof long=4 [2021-06-05 03:01:13,992 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-06-05 03:01:13,993 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-06-05 03:01:13,993 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-06-05 03:01:13,993 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-06-05 03:01:13,994 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-06-05 03:01:13,994 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-06-05 03:01:13,994 INFO L138 SettingsManager]: * sizeof long double=12 [2021-06-05 03:01:13,994 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-06-05 03:01:13,994 INFO L138 SettingsManager]: * Use constant arrays=true [2021-06-05 03:01:13,994 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-06-05 03:01:13,994 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-06-05 03:01:13,994 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-06-05 03:01:13,994 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-06-05 03:01:13,995 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-06-05 03:01:13,995 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-06-05 03:01:13,995 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-06-05 03:01:13,995 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-06-05 03:01:13,995 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-06-05 03:01:13,995 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-06-05 03:01:13,995 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-06-05 03:01:13,995 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-06-05 03:01:13,995 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-06-05 03:01:13,996 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-06-05 03:01:14,292 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-06-05 03:01:14,321 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-06-05 03:01:14,326 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-06-05 03:01:14,327 INFO L271 PluginConnector]: Initializing CDTParser... [2021-06-05 03:01:14,328 INFO L275 PluginConnector]: CDTParser initialized [2021-06-05 03:01:14,329 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/pthreads/distributed_search2.c [2021-06-05 03:01:14,380 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/cafeb409d/14e47e634ade4ebaa5ec319241c01404/FLAG5a5d0c092 [2021-06-05 03:01:14,981 INFO L306 CDTParser]: Found 1 translation units. [2021-06-05 03:01:14,982 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/concurrent/pthreads/distributed_search2.c [2021-06-05 03:01:14,982 WARN L117 ultiparseSymbolTable]: System include pthread.h could not be resolved by CDT -- only built-in system includes are available. [2021-06-05 03:01:14,982 WARN L117 ultiparseSymbolTable]: System include stdio.h could not be resolved by CDT -- only built-in system includes are available. [2021-06-05 03:01:15,015 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/cafeb409d/14e47e634ade4ebaa5ec319241c01404/FLAG5a5d0c092 [2021-06-05 03:01:15,401 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/cafeb409d/14e47e634ade4ebaa5ec319241c01404 [2021-06-05 03:01:15,405 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-06-05 03:01:15,407 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-06-05 03:01:15,409 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-06-05 03:01:15,409 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-06-05 03:01:15,412 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-06-05 03:01:15,413 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.06 03:01:15" (1/1) ... [2021-06-05 03:01:15,414 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3ab694a1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.06 03:01:15, skipping insertion in model container [2021-06-05 03:01:15,414 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.06 03:01:15" (1/1) ... [2021-06-05 03:01:15,420 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-06-05 03:01:15,437 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-06-05 03:01:15,607 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-06-05 03:01:15,615 INFO L203 MainTranslator]: Completed pre-run [2021-06-05 03:01:15,656 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-06-05 03:01:15,669 INFO L208 MainTranslator]: Completed translation [2021-06-05 03:01:15,669 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.06 03:01:15 WrapperNode [2021-06-05 03:01:15,670 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-06-05 03:01:15,672 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-06-05 03:01:15,672 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-06-05 03:01:15,672 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-06-05 03:01:15,680 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.06 03:01:15" (1/1) ... [2021-06-05 03:01:15,694 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.06 03:01:15" (1/1) ... [2021-06-05 03:01:15,720 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-06-05 03:01:15,721 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-06-05 03:01:15,721 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-06-05 03:01:15,721 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-06-05 03:01:15,727 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.06 03:01:15" (1/1) ... [2021-06-05 03:01:15,727 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.06 03:01:15" (1/1) ... [2021-06-05 03:01:15,732 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.06 03:01:15" (1/1) ... [2021-06-05 03:01:15,732 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.06 03:01:15" (1/1) ... [2021-06-05 03:01:15,749 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.06 03:01:15" (1/1) ... [2021-06-05 03:01:15,752 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.06 03:01:15" (1/1) ... [2021-06-05 03:01:15,758 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.06 03:01:15" (1/1) ... [2021-06-05 03:01:15,759 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-06-05 03:01:15,760 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-06-05 03:01:15,760 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-06-05 03:01:15,760 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-06-05 03:01:15,761 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.06 03:01:15" (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 [2021-06-05 03:01:15,827 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-06-05 03:01:15,827 INFO L130 BoogieDeclarations]: Found specification of procedure search_worker [2021-06-05 03:01:15,827 INFO L138 BoogieDeclarations]: Found implementation of procedure search_worker [2021-06-05 03:01:15,828 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-06-05 03:01:15,828 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-06-05 03:01:15,829 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-06-05 03:01:15,829 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-06-05 03:01:15,829 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-06-05 03:01:15,829 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-06-05 03:01:15,831 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-06-05 03:01:16,314 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-06-05 03:01:16,314 INFO L299 CfgBuilder]: Removed 7 assume(true) statements. [2021-06-05 03:01:16,315 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.06 03:01:16 BoogieIcfgContainer [2021-06-05 03:01:16,316 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-06-05 03:01:16,317 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-06-05 03:01:16,317 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-06-05 03:01:16,320 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-06-05 03:01:16,320 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 05.06 03:01:15" (1/3) ... [2021-06-05 03:01:16,321 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6677973a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 05.06 03:01:16, skipping insertion in model container [2021-06-05 03:01:16,321 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.06 03:01:15" (2/3) ... [2021-06-05 03:01:16,321 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6677973a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 05.06 03:01:16, skipping insertion in model container [2021-06-05 03:01:16,321 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.06 03:01:16" (3/3) ... [2021-06-05 03:01:16,323 INFO L111 eAbstractionObserver]: Analyzing ICFG distributed_search2.c [2021-06-05 03:01:16,334 WARN L148 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-06-05 03:01:16,335 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-06-05 03:01:16,335 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-06-05 03:01:16,336 INFO L510 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-06-05 03:01:16,378 WARN L313 ript$VariableManager]: TermVariabe |search_workerThread1of1ForFork0_#in~params.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 03:01:16,378 WARN L313 ript$VariableManager]: TermVariabe |search_workerThread1of1ForFork0_#in~params.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 03:01:16,379 WARN L313 ript$VariableManager]: TermVariabe search_workerThread1of1ForFork0_~params.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 03:01:16,379 WARN L313 ript$VariableManager]: TermVariabe search_workerThread1of1ForFork0_~params.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 03:01:16,380 WARN L313 ript$VariableManager]: TermVariabe |search_workerThread1of1ForFork0_#in~params.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 03:01:16,380 WARN L313 ript$VariableManager]: TermVariabe |search_workerThread1of1ForFork0_#in~params.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 03:01:16,380 WARN L313 ript$VariableManager]: TermVariabe search_workerThread1of1ForFork0_~params.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 03:01:16,380 WARN L313 ript$VariableManager]: TermVariabe search_workerThread1of1ForFork0_~params.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 03:01:16,380 WARN L313 ript$VariableManager]: TermVariabe search_workerThread1of1ForFork0_~params.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 03:01:16,380 WARN L313 ript$VariableManager]: TermVariabe search_workerThread1of1ForFork0_~params.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 03:01:16,381 WARN L313 ript$VariableManager]: TermVariabe search_workerThread1of1ForFork0_~bounds~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 03:01:16,381 WARN L313 ript$VariableManager]: TermVariabe search_workerThread1of1ForFork0_~bounds~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 03:01:16,381 WARN L313 ript$VariableManager]: TermVariabe search_workerThread1of1ForFork0_~params.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 03:01:16,381 WARN L313 ript$VariableManager]: TermVariabe search_workerThread1of1ForFork0_~params.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 03:01:16,381 WARN L313 ript$VariableManager]: TermVariabe search_workerThread1of1ForFork0_~bounds~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 03:01:16,381 WARN L313 ript$VariableManager]: TermVariabe search_workerThread1of1ForFork0_~bounds~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 03:01:16,382 WARN L313 ript$VariableManager]: TermVariabe search_workerThread1of1ForFork0_~bounds~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 03:01:16,382 WARN L313 ript$VariableManager]: TermVariabe search_workerThread1of1ForFork0_~bounds~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 03:01:16,382 WARN L313 ript$VariableManager]: TermVariabe |search_workerThread1of1ForFork0_#t~mem0| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 03:01:16,382 WARN L313 ript$VariableManager]: TermVariabe search_workerThread1of1ForFork0_~bounds~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 03:01:16,382 WARN L313 ript$VariableManager]: TermVariabe search_workerThread1of1ForFork0_~bounds~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 03:01:16,383 WARN L313 ript$VariableManager]: TermVariabe |search_workerThread1of1ForFork0_#t~mem0| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 03:01:16,383 WARN L313 ript$VariableManager]: TermVariabe |search_workerThread1of1ForFork0_#t~mem0| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 03:01:16,383 WARN L313 ript$VariableManager]: TermVariabe search_workerThread1of1ForFork0_~lower~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 03:01:16,383 WARN L313 ript$VariableManager]: TermVariabe |search_workerThread1of1ForFork0_#t~mem0| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 03:01:16,383 WARN L313 ript$VariableManager]: TermVariabe search_workerThread1of1ForFork0_~lower~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 03:01:16,384 WARN L313 ript$VariableManager]: TermVariabe |search_workerThread1of1ForFork0_#t~mem0| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 03:01:16,384 WARN L313 ript$VariableManager]: TermVariabe |search_workerThread1of1ForFork0_#t~mem0| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 03:01:16,384 WARN L313 ript$VariableManager]: TermVariabe search_workerThread1of1ForFork0_~bounds~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 03:01:16,384 WARN L313 ript$VariableManager]: TermVariabe search_workerThread1of1ForFork0_~bounds~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 03:01:16,385 WARN L313 ript$VariableManager]: TermVariabe |search_workerThread1of1ForFork0_#t~mem1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 03:01:16,385 WARN L313 ript$VariableManager]: TermVariabe search_workerThread1of1ForFork0_~bounds~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 03:01:16,385 WARN L313 ript$VariableManager]: TermVariabe search_workerThread1of1ForFork0_~bounds~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 03:01:16,385 WARN L313 ript$VariableManager]: TermVariabe |search_workerThread1of1ForFork0_#t~mem1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 03:01:16,385 WARN L313 ript$VariableManager]: TermVariabe |search_workerThread1of1ForFork0_#t~mem1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 03:01:16,386 WARN L313 ript$VariableManager]: TermVariabe search_workerThread1of1ForFork0_~upper~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 03:01:16,386 WARN L313 ript$VariableManager]: TermVariabe |search_workerThread1of1ForFork0_#t~mem1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 03:01:16,386 WARN L313 ript$VariableManager]: TermVariabe search_workerThread1of1ForFork0_~upper~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 03:01:16,387 WARN L313 ript$VariableManager]: TermVariabe |search_workerThread1of1ForFork0_#t~mem1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 03:01:16,387 WARN L313 ript$VariableManager]: TermVariabe |search_workerThread1of1ForFork0_#t~mem1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 03:01:16,387 WARN L313 ript$VariableManager]: TermVariabe search_workerThread1of1ForFork0_~lower~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 03:01:16,387 WARN L313 ript$VariableManager]: TermVariabe search_workerThread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 03:01:16,387 WARN L313 ript$VariableManager]: TermVariabe search_workerThread1of1ForFork0_~lower~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 03:01:16,387 WARN L313 ript$VariableManager]: TermVariabe search_workerThread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 03:01:16,388 WARN L313 ript$VariableManager]: TermVariabe search_workerThread1of1ForFork0_~upper~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 03:01:16,388 WARN L313 ript$VariableManager]: TermVariabe search_workerThread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 03:01:16,388 WARN L313 ript$VariableManager]: TermVariabe search_workerThread1of1ForFork0_~upper~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 03:01:16,388 WARN L313 ript$VariableManager]: TermVariabe search_workerThread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 03:01:16,388 WARN L313 ript$VariableManager]: TermVariabe search_workerThread1of1ForFork0_~upper~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 03:01:16,388 WARN L313 ript$VariableManager]: TermVariabe search_workerThread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 03:01:16,389 WARN L313 ript$VariableManager]: TermVariabe search_workerThread1of1ForFork0_~upper~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 03:01:16,389 WARN L313 ript$VariableManager]: TermVariabe search_workerThread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 03:01:16,389 WARN L313 ript$VariableManager]: TermVariabe |search_workerThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 03:01:16,389 WARN L313 ript$VariableManager]: TermVariabe |search_workerThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 03:01:16,389 WARN L313 ript$VariableManager]: TermVariabe |search_workerThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 03:01:16,389 WARN L313 ript$VariableManager]: TermVariabe |search_workerThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 03:01:16,389 WARN L313 ript$VariableManager]: TermVariabe search_workerThread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 03:01:16,390 WARN L313 ript$VariableManager]: TermVariabe |search_workerThread1of1ForFork0_#t~mem3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 03:01:16,390 WARN L313 ript$VariableManager]: TermVariabe search_workerThread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 03:01:16,390 WARN L313 ript$VariableManager]: TermVariabe |search_workerThread1of1ForFork0_#t~mem3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 03:01:16,390 WARN L313 ript$VariableManager]: TermVariabe |search_workerThread1of1ForFork0_#t~mem3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 03:01:16,391 WARN L313 ript$VariableManager]: TermVariabe |search_workerThread1of1ForFork0_#t~mem3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 03:01:16,391 WARN L313 ript$VariableManager]: TermVariabe |search_workerThread1of1ForFork0_#t~mem3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 03:01:16,391 WARN L313 ript$VariableManager]: TermVariabe |search_workerThread1of1ForFork0_#t~mem3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 03:01:16,391 WARN L313 ript$VariableManager]: TermVariabe |search_workerThread1of1ForFork0_#t~mem3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 03:01:16,391 WARN L313 ript$VariableManager]: TermVariabe |search_workerThread1of1ForFork0_#t~mem3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 03:01:16,392 WARN L313 ript$VariableManager]: TermVariabe |search_workerThread1of1ForFork0_#t~mem3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 03:01:16,392 WARN L313 ript$VariableManager]: TermVariabe |search_workerThread1of1ForFork0_#t~mem3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 03:01:16,392 WARN L313 ript$VariableManager]: TermVariabe search_workerThread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 03:01:16,392 WARN L313 ript$VariableManager]: TermVariabe |search_workerThread1of1ForFork0_#t~post2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 03:01:16,392 WARN L313 ript$VariableManager]: TermVariabe search_workerThread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 03:01:16,393 WARN L313 ript$VariableManager]: TermVariabe |search_workerThread1of1ForFork0_#t~post2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 03:01:16,393 WARN L313 ript$VariableManager]: TermVariabe search_workerThread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 03:01:16,396 WARN L313 ript$VariableManager]: TermVariabe search_workerThread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 03:01:16,396 WARN L313 ript$VariableManager]: TermVariabe |search_workerThread1of1ForFork0_#t~post2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 03:01:16,397 WARN L313 ript$VariableManager]: TermVariabe search_workerThread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 03:01:16,397 WARN L313 ript$VariableManager]: TermVariabe |search_workerThread1of1ForFork0_#t~post2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 03:01:16,398 WARN L313 ript$VariableManager]: TermVariabe search_workerThread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 03:01:16,399 WARN L313 ript$VariableManager]: TermVariabe |search_workerThread1of1ForFork0_#t~post2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 03:01:16,400 WARN L313 ript$VariableManager]: TermVariabe |search_workerThread1of1ForFork0_#t~post2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 03:01:16,401 WARN L313 ript$VariableManager]: TermVariabe |search_workerThread1of1ForFork1_#in~params.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 03:01:16,401 WARN L313 ript$VariableManager]: TermVariabe |search_workerThread1of1ForFork1_#in~params.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 03:01:16,401 WARN L313 ript$VariableManager]: TermVariabe search_workerThread1of1ForFork1_~params.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 03:01:16,401 WARN L313 ript$VariableManager]: TermVariabe search_workerThread1of1ForFork1_~params.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 03:01:16,401 WARN L313 ript$VariableManager]: TermVariabe |search_workerThread1of1ForFork1_#in~params.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 03:01:16,402 WARN L313 ript$VariableManager]: TermVariabe |search_workerThread1of1ForFork1_#in~params.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 03:01:16,402 WARN L313 ript$VariableManager]: TermVariabe search_workerThread1of1ForFork1_~params.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 03:01:16,402 WARN L313 ript$VariableManager]: TermVariabe search_workerThread1of1ForFork1_~params.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 03:01:16,402 WARN L313 ript$VariableManager]: TermVariabe search_workerThread1of1ForFork1_~params.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 03:01:16,402 WARN L313 ript$VariableManager]: TermVariabe search_workerThread1of1ForFork1_~params.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 03:01:16,402 WARN L313 ript$VariableManager]: TermVariabe search_workerThread1of1ForFork1_~bounds~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 03:01:16,403 WARN L313 ript$VariableManager]: TermVariabe search_workerThread1of1ForFork1_~bounds~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 03:01:16,403 WARN L313 ript$VariableManager]: TermVariabe search_workerThread1of1ForFork1_~params.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 03:01:16,403 WARN L313 ript$VariableManager]: TermVariabe search_workerThread1of1ForFork1_~params.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 03:01:16,403 WARN L313 ript$VariableManager]: TermVariabe search_workerThread1of1ForFork1_~bounds~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 03:01:16,403 WARN L313 ript$VariableManager]: TermVariabe search_workerThread1of1ForFork1_~bounds~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 03:01:16,403 WARN L313 ript$VariableManager]: TermVariabe search_workerThread1of1ForFork1_~bounds~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 03:01:16,403 WARN L313 ript$VariableManager]: TermVariabe search_workerThread1of1ForFork1_~bounds~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 03:01:16,403 WARN L313 ript$VariableManager]: TermVariabe |search_workerThread1of1ForFork1_#t~mem0| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 03:01:16,404 WARN L313 ript$VariableManager]: TermVariabe search_workerThread1of1ForFork1_~bounds~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 03:01:16,404 WARN L313 ript$VariableManager]: TermVariabe search_workerThread1of1ForFork1_~bounds~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 03:01:16,406 WARN L313 ript$VariableManager]: TermVariabe |search_workerThread1of1ForFork1_#t~mem0| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 03:01:16,408 WARN L313 ript$VariableManager]: TermVariabe |search_workerThread1of1ForFork1_#t~mem0| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 03:01:16,409 WARN L313 ript$VariableManager]: TermVariabe search_workerThread1of1ForFork1_~lower~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 03:01:16,409 WARN L313 ript$VariableManager]: TermVariabe |search_workerThread1of1ForFork1_#t~mem0| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 03:01:16,409 WARN L313 ript$VariableManager]: TermVariabe search_workerThread1of1ForFork1_~lower~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 03:01:16,414 WARN L313 ript$VariableManager]: TermVariabe |search_workerThread1of1ForFork1_#t~mem0| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 03:01:16,414 WARN L313 ript$VariableManager]: TermVariabe |search_workerThread1of1ForFork1_#t~mem0| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 03:01:16,415 WARN L313 ript$VariableManager]: TermVariabe search_workerThread1of1ForFork1_~bounds~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 03:01:16,415 WARN L313 ript$VariableManager]: TermVariabe search_workerThread1of1ForFork1_~bounds~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 03:01:16,415 WARN L313 ript$VariableManager]: TermVariabe |search_workerThread1of1ForFork1_#t~mem1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 03:01:16,415 WARN L313 ript$VariableManager]: TermVariabe search_workerThread1of1ForFork1_~bounds~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 03:01:16,415 WARN L313 ript$VariableManager]: TermVariabe search_workerThread1of1ForFork1_~bounds~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 03:01:16,415 WARN L313 ript$VariableManager]: TermVariabe |search_workerThread1of1ForFork1_#t~mem1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 03:01:16,415 WARN L313 ript$VariableManager]: TermVariabe |search_workerThread1of1ForFork1_#t~mem1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 03:01:16,415 WARN L313 ript$VariableManager]: TermVariabe search_workerThread1of1ForFork1_~upper~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 03:01:16,416 WARN L313 ript$VariableManager]: TermVariabe |search_workerThread1of1ForFork1_#t~mem1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 03:01:16,416 WARN L313 ript$VariableManager]: TermVariabe search_workerThread1of1ForFork1_~upper~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 03:01:16,416 WARN L313 ript$VariableManager]: TermVariabe |search_workerThread1of1ForFork1_#t~mem1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 03:01:16,416 WARN L313 ript$VariableManager]: TermVariabe |search_workerThread1of1ForFork1_#t~mem1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 03:01:16,416 WARN L313 ript$VariableManager]: TermVariabe search_workerThread1of1ForFork1_~lower~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 03:01:16,416 WARN L313 ript$VariableManager]: TermVariabe search_workerThread1of1ForFork1_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 03:01:16,416 WARN L313 ript$VariableManager]: TermVariabe search_workerThread1of1ForFork1_~lower~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 03:01:16,416 WARN L313 ript$VariableManager]: TermVariabe search_workerThread1of1ForFork1_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 03:01:16,417 WARN L313 ript$VariableManager]: TermVariabe search_workerThread1of1ForFork1_~upper~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 03:01:16,417 WARN L313 ript$VariableManager]: TermVariabe search_workerThread1of1ForFork1_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 03:01:16,417 WARN L313 ript$VariableManager]: TermVariabe search_workerThread1of1ForFork1_~upper~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 03:01:16,417 WARN L313 ript$VariableManager]: TermVariabe search_workerThread1of1ForFork1_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 03:01:16,417 WARN L313 ript$VariableManager]: TermVariabe search_workerThread1of1ForFork1_~upper~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 03:01:16,417 WARN L313 ript$VariableManager]: TermVariabe search_workerThread1of1ForFork1_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 03:01:16,418 WARN L313 ript$VariableManager]: TermVariabe search_workerThread1of1ForFork1_~upper~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 03:01:16,418 WARN L313 ript$VariableManager]: TermVariabe search_workerThread1of1ForFork1_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 03:01:16,418 WARN L313 ript$VariableManager]: TermVariabe |search_workerThread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 03:01:16,418 WARN L313 ript$VariableManager]: TermVariabe |search_workerThread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 03:01:16,418 WARN L313 ript$VariableManager]: TermVariabe |search_workerThread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 03:01:16,418 WARN L313 ript$VariableManager]: TermVariabe |search_workerThread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 03:01:16,418 WARN L313 ript$VariableManager]: TermVariabe search_workerThread1of1ForFork1_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 03:01:16,418 WARN L313 ript$VariableManager]: TermVariabe |search_workerThread1of1ForFork1_#t~mem3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 03:01:16,419 WARN L313 ript$VariableManager]: TermVariabe search_workerThread1of1ForFork1_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 03:01:16,419 WARN L313 ript$VariableManager]: TermVariabe |search_workerThread1of1ForFork1_#t~mem3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 03:01:16,419 WARN L313 ript$VariableManager]: TermVariabe |search_workerThread1of1ForFork1_#t~mem3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 03:01:16,419 WARN L313 ript$VariableManager]: TermVariabe |search_workerThread1of1ForFork1_#t~mem3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 03:01:16,419 WARN L313 ript$VariableManager]: TermVariabe |search_workerThread1of1ForFork1_#t~mem3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 03:01:16,419 WARN L313 ript$VariableManager]: TermVariabe |search_workerThread1of1ForFork1_#t~mem3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 03:01:16,419 WARN L313 ript$VariableManager]: TermVariabe |search_workerThread1of1ForFork1_#t~mem3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 03:01:16,420 WARN L313 ript$VariableManager]: TermVariabe |search_workerThread1of1ForFork1_#t~mem3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 03:01:16,420 WARN L313 ript$VariableManager]: TermVariabe |search_workerThread1of1ForFork1_#t~mem3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 03:01:16,420 WARN L313 ript$VariableManager]: TermVariabe |search_workerThread1of1ForFork1_#t~mem3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 03:01:16,420 WARN L313 ript$VariableManager]: TermVariabe search_workerThread1of1ForFork1_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 03:01:16,420 WARN L313 ript$VariableManager]: TermVariabe |search_workerThread1of1ForFork1_#t~post2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 03:01:16,420 WARN L313 ript$VariableManager]: TermVariabe search_workerThread1of1ForFork1_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 03:01:16,420 WARN L313 ript$VariableManager]: TermVariabe |search_workerThread1of1ForFork1_#t~post2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 03:01:16,420 WARN L313 ript$VariableManager]: TermVariabe search_workerThread1of1ForFork1_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 03:01:16,421 WARN L313 ript$VariableManager]: TermVariabe search_workerThread1of1ForFork1_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 03:01:16,421 WARN L313 ript$VariableManager]: TermVariabe |search_workerThread1of1ForFork1_#t~post2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 03:01:16,421 WARN L313 ript$VariableManager]: TermVariabe search_workerThread1of1ForFork1_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 03:01:16,421 WARN L313 ript$VariableManager]: TermVariabe |search_workerThread1of1ForFork1_#t~post2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 03:01:16,421 WARN L313 ript$VariableManager]: TermVariabe search_workerThread1of1ForFork1_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 03:01:16,421 WARN L313 ript$VariableManager]: TermVariabe |search_workerThread1of1ForFork1_#t~post2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 03:01:16,421 WARN L313 ript$VariableManager]: TermVariabe |search_workerThread1of1ForFork1_#t~post2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 03:01:16,423 WARN L313 ript$VariableManager]: TermVariabe |search_workerThread1of1ForFork0_#t~post2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 03:01:16,423 WARN L313 ript$VariableManager]: TermVariabe search_workerThread1of1ForFork0_~params.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 03:01:16,424 WARN L313 ript$VariableManager]: TermVariabe |search_workerThread1of1ForFork0_#t~mem1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 03:01:16,424 WARN L313 ript$VariableManager]: TermVariabe search_workerThread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 03:01:16,424 WARN L313 ript$VariableManager]: TermVariabe |search_workerThread1of1ForFork0_#t~mem3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 03:01:16,424 WARN L313 ript$VariableManager]: TermVariabe search_workerThread1of1ForFork0_~bounds~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 03:01:16,424 WARN L313 ript$VariableManager]: TermVariabe |search_workerThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 03:01:16,424 WARN L313 ript$VariableManager]: TermVariabe search_workerThread1of1ForFork0_~params.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 03:01:16,425 WARN L313 ript$VariableManager]: TermVariabe search_workerThread1of1ForFork0_~bounds~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 03:01:16,425 WARN L313 ript$VariableManager]: TermVariabe |search_workerThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 03:01:16,425 WARN L313 ript$VariableManager]: TermVariabe search_workerThread1of1ForFork0_~lower~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 03:01:16,425 WARN L313 ript$VariableManager]: TermVariabe |search_workerThread1of1ForFork0_#t~mem0| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 03:01:16,426 WARN L313 ript$VariableManager]: TermVariabe search_workerThread1of1ForFork0_~upper~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 03:01:16,431 WARN L313 ript$VariableManager]: TermVariabe |search_workerThread1of1ForFork1_#t~post2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 03:01:16,431 WARN L313 ript$VariableManager]: TermVariabe |search_workerThread1of1ForFork1_#t~mem1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 03:01:16,431 WARN L313 ript$VariableManager]: TermVariabe search_workerThread1of1ForFork1_~params.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 03:01:16,431 WARN L313 ript$VariableManager]: TermVariabe |search_workerThread1of1ForFork1_#t~mem0| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 03:01:16,431 WARN L313 ript$VariableManager]: TermVariabe |search_workerThread1of1ForFork1_#t~mem3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 03:01:16,432 WARN L313 ript$VariableManager]: TermVariabe search_workerThread1of1ForFork1_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 03:01:16,432 WARN L313 ript$VariableManager]: TermVariabe search_workerThread1of1ForFork1_~bounds~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 03:01:16,432 WARN L313 ript$VariableManager]: TermVariabe |search_workerThread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 03:01:16,433 WARN L313 ript$VariableManager]: TermVariabe search_workerThread1of1ForFork1_~params.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 03:01:16,433 WARN L313 ript$VariableManager]: TermVariabe |search_workerThread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 03:01:16,433 WARN L313 ript$VariableManager]: TermVariabe search_workerThread1of1ForFork1_~bounds~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 03:01:16,433 WARN L313 ript$VariableManager]: TermVariabe search_workerThread1of1ForFork1_~lower~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 03:01:16,433 WARN L313 ript$VariableManager]: TermVariabe search_workerThread1of1ForFork1_~upper~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 03:01:16,452 INFO L149 ThreadInstanceAdder]: Constructed 4 joinOtherThreadTransitions. [2021-06-05 03:01:16,469 INFO L255 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2021-06-05 03:01:16,499 INFO L378 AbstractCegarLoop]: Interprodecural is true [2021-06-05 03:01:16,500 INFO L379 AbstractCegarLoop]: Hoare is false [2021-06-05 03:01:16,500 INFO L380 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-06-05 03:01:16,500 INFO L381 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-06-05 03:01:16,500 INFO L382 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-06-05 03:01:16,500 INFO L383 AbstractCegarLoop]: Difference is false [2021-06-05 03:01:16,500 INFO L384 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-06-05 03:01:16,500 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-06-05 03:01:16,515 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 141 places, 144 transitions, 310 flow [2021-06-05 03:01:16,636 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 2341 states, 2339 states have (on average 2.75502351432236) internal successors, (6444), 2340 states have internal predecessors, (6444), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:01:16,644 INFO L276 IsEmpty]: Start isEmpty. Operand has 2341 states, 2339 states have (on average 2.75502351432236) internal successors, (6444), 2340 states have internal predecessors, (6444), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:01:16,684 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2021-06-05 03:01:16,684 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:01:16,685 INFO L521 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] [2021-06-05 03:01:16,685 INFO L430 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-05 03:01:16,690 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:01:16,691 INFO L82 PathProgramCache]: Analyzing trace with hash -1399251289, now seen corresponding path program 1 times [2021-06-05 03:01:16,698 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:01:16,699 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1126012999] [2021-06-05 03:01:16,699 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:01:16,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:01:16,966 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:01:16,967 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:01:16,967 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1126012999] [2021-06-05 03:01:16,969 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1126012999] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:01:16,969 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:01:16,969 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-06-05 03:01:16,970 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1913364854] [2021-06-05 03:01:16,974 INFO L462 AbstractCegarLoop]: Interpolant automaton has 2 states [2021-06-05 03:01:16,974 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:01:16,984 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-06-05 03:01:16,985 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-06-05 03:01:16,994 INFO L87 Difference]: Start difference. First operand has 2341 states, 2339 states have (on average 2.75502351432236) internal successors, (6444), 2340 states have internal predecessors, (6444), 0 states have call successors, (0), 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 2 states, 2 states have (on average 46.5) internal successors, (93), 2 states have internal predecessors, (93), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:01:17,043 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:01:17,043 INFO L93 Difference]: Finished difference Result 2341 states and 6253 transitions. [2021-06-05 03:01:17,044 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-05 03:01:17,045 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 46.5) internal successors, (93), 2 states have internal predecessors, (93), 0 states have call successors, (0), 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 93 [2021-06-05 03:01:17,045 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:01:17,071 INFO L225 Difference]: With dead ends: 2341 [2021-06-05 03:01:17,072 INFO L226 Difference]: Without dead ends: 2329 [2021-06-05 03:01:17,073 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0ms TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-06-05 03:01:17,106 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2329 states. [2021-06-05 03:01:17,223 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2329 to 2329. [2021-06-05 03:01:17,229 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2329 states, 2328 states have (on average 2.6804123711340204) internal successors, (6240), 2328 states have internal predecessors, (6240), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:01:17,241 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2329 states to 2329 states and 6240 transitions. [2021-06-05 03:01:17,243 INFO L78 Accepts]: Start accepts. Automaton has 2329 states and 6240 transitions. Word has length 93 [2021-06-05 03:01:17,246 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:01:17,246 INFO L482 AbstractCegarLoop]: Abstraction has 2329 states and 6240 transitions. [2021-06-05 03:01:17,246 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 2 states, 2 states have (on average 46.5) internal successors, (93), 2 states have internal predecessors, (93), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:01:17,246 INFO L276 IsEmpty]: Start isEmpty. Operand 2329 states and 6240 transitions. [2021-06-05 03:01:17,255 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2021-06-05 03:01:17,256 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:01:17,256 INFO L521 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] [2021-06-05 03:01:17,256 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-06-05 03:01:17,256 INFO L430 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-05 03:01:17,258 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:01:17,259 INFO L82 PathProgramCache]: Analyzing trace with hash -1466258042, now seen corresponding path program 1 times [2021-06-05 03:01:17,259 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:01:17,260 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [913767435] [2021-06-05 03:01:17,260 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:01:17,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:01:17,441 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:01:17,441 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:01:17,441 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [913767435] [2021-06-05 03:01:17,441 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [913767435] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:01:17,441 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:01:17,442 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-06-05 03:01:17,442 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1387266488] [2021-06-05 03:01:17,443 INFO L462 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-06-05 03:01:17,444 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:01:17,444 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-06-05 03:01:17,445 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-06-05 03:01:17,445 INFO L87 Difference]: Start difference. First operand 2329 states and 6240 transitions. Second operand has 3 states, 3 states have (on average 31.0) internal successors, (93), 3 states have internal predecessors, (93), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:01:17,542 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:01:17,542 INFO L93 Difference]: Finished difference Result 4024 states and 10873 transitions. [2021-06-05 03:01:17,543 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-05 03:01:17,543 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 31.0) internal successors, (93), 3 states have internal predecessors, (93), 0 states have call successors, (0), 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 93 [2021-06-05 03:01:17,544 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:01:17,563 INFO L225 Difference]: With dead ends: 4024 [2021-06-05 03:01:17,563 INFO L226 Difference]: Without dead ends: 4024 [2021-06-05 03:01:17,564 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 18.7ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-06-05 03:01:17,583 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4024 states. [2021-06-05 03:01:17,670 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4024 to 3655. [2021-06-05 03:01:17,678 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3655 states, 3654 states have (on average 2.7090859332238644) internal successors, (9899), 3654 states have internal predecessors, (9899), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:01:17,695 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3655 states to 3655 states and 9899 transitions. [2021-06-05 03:01:17,695 INFO L78 Accepts]: Start accepts. Automaton has 3655 states and 9899 transitions. Word has length 93 [2021-06-05 03:01:17,697 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:01:17,698 INFO L482 AbstractCegarLoop]: Abstraction has 3655 states and 9899 transitions. [2021-06-05 03:01:17,698 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 31.0) internal successors, (93), 3 states have internal predecessors, (93), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:01:17,698 INFO L276 IsEmpty]: Start isEmpty. Operand 3655 states and 9899 transitions. [2021-06-05 03:01:17,708 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2021-06-05 03:01:17,708 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:01:17,709 INFO L521 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] [2021-06-05 03:01:17,709 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-06-05 03:01:17,709 INFO L430 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-05 03:01:17,710 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:01:17,710 INFO L82 PathProgramCache]: Analyzing trace with hash -495984055, now seen corresponding path program 1 times [2021-06-05 03:01:17,710 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:01:17,711 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1017580261] [2021-06-05 03:01:17,711 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:01:17,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:01:17,871 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:01:17,871 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:01:17,871 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1017580261] [2021-06-05 03:01:17,871 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1017580261] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:01:17,872 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:01:17,872 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-06-05 03:01:17,872 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [301031250] [2021-06-05 03:01:17,872 INFO L462 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-06-05 03:01:17,872 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:01:17,873 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-06-05 03:01:17,873 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-06-05 03:01:17,873 INFO L87 Difference]: Start difference. First operand 3655 states and 9899 transitions. Second operand has 5 states, 5 states have (on average 18.6) internal successors, (93), 5 states have internal predecessors, (93), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:01:18,010 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:01:18,011 INFO L93 Difference]: Finished difference Result 3660 states and 9903 transitions. [2021-06-05 03:01:18,011 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-06-05 03:01:18,011 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 18.6) internal successors, (93), 5 states have internal predecessors, (93), 0 states have call successors, (0), 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 93 [2021-06-05 03:01:18,011 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:01:18,025 INFO L225 Difference]: With dead ends: 3660 [2021-06-05 03:01:18,025 INFO L226 Difference]: Without dead ends: 3590 [2021-06-05 03:01:18,026 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 100.1ms TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-06-05 03:01:18,040 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3590 states. [2021-06-05 03:01:18,105 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3590 to 3590. [2021-06-05 03:01:18,124 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3590 states, 3589 states have (on average 2.716634159933129) internal successors, (9750), 3589 states have internal predecessors, (9750), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:01:18,139 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3590 states to 3590 states and 9750 transitions. [2021-06-05 03:01:18,139 INFO L78 Accepts]: Start accepts. Automaton has 3590 states and 9750 transitions. Word has length 93 [2021-06-05 03:01:18,139 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:01:18,139 INFO L482 AbstractCegarLoop]: Abstraction has 3590 states and 9750 transitions. [2021-06-05 03:01:18,140 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 18.6) internal successors, (93), 5 states have internal predecessors, (93), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:01:18,140 INFO L276 IsEmpty]: Start isEmpty. Operand 3590 states and 9750 transitions. [2021-06-05 03:01:18,153 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2021-06-05 03:01:18,153 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:01:18,153 INFO L521 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, 1] [2021-06-05 03:01:18,153 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-06-05 03:01:18,154 INFO L430 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-05 03:01:18,154 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:01:18,154 INFO L82 PathProgramCache]: Analyzing trace with hash -1059765237, now seen corresponding path program 1 times [2021-06-05 03:01:18,154 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:01:18,154 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [960505979] [2021-06-05 03:01:18,155 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:01:18,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:01:18,528 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-06-05 03:01:18,529 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:01:18,531 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [960505979] [2021-06-05 03:01:18,532 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [960505979] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:01:18,532 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:01:18,532 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 03:01:18,532 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1954531599] [2021-06-05 03:01:18,532 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:01:18,533 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:01:18,533 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:01:18,533 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:01:18,533 INFO L87 Difference]: Start difference. First operand 3590 states and 9750 transitions. Second operand has 9 states, 9 states have (on average 11.333333333333334) internal successors, (102), 9 states have internal predecessors, (102), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:01:18,747 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:01:18,747 INFO L93 Difference]: Finished difference Result 3590 states and 9749 transitions. [2021-06-05 03:01:18,748 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-06-05 03:01:18,748 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 11.333333333333334) internal successors, (102), 9 states have internal predecessors, (102), 0 states have call successors, (0), 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 102 [2021-06-05 03:01:18,749 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:01:18,764 INFO L225 Difference]: With dead ends: 3590 [2021-06-05 03:01:18,764 INFO L226 Difference]: Without dead ends: 3476 [2021-06-05 03:01:18,765 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 171.7ms TimeCoverageRelationStatistics Valid=29, Invalid=103, Unknown=0, NotChecked=0, Total=132 [2021-06-05 03:01:18,779 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3476 states. [2021-06-05 03:01:18,842 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3476 to 3476. [2021-06-05 03:01:18,847 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3476 states, 3475 states have (on average 2.7381294964028777) internal successors, (9515), 3475 states have internal predecessors, (9515), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:01:18,860 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3476 states to 3476 states and 9515 transitions. [2021-06-05 03:01:18,860 INFO L78 Accepts]: Start accepts. Automaton has 3476 states and 9515 transitions. Word has length 102 [2021-06-05 03:01:18,861 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:01:18,861 INFO L482 AbstractCegarLoop]: Abstraction has 3476 states and 9515 transitions. [2021-06-05 03:01:18,862 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 9 states have (on average 11.333333333333334) internal successors, (102), 9 states have internal predecessors, (102), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:01:18,862 INFO L276 IsEmpty]: Start isEmpty. Operand 3476 states and 9515 transitions. [2021-06-05 03:01:18,870 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2021-06-05 03:01:18,871 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:01:18,871 INFO L521 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, 1] [2021-06-05 03:01:18,872 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-06-05 03:01:18,872 INFO L430 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-05 03:01:18,873 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:01:18,873 INFO L82 PathProgramCache]: Analyzing trace with hash 1570861583, now seen corresponding path program 1 times [2021-06-05 03:01:18,873 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:01:18,873 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [393577882] [2021-06-05 03:01:18,873 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:01:18,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:01:20,452 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:01:20,452 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:01:20,452 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [393577882] [2021-06-05 03:01:20,452 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [393577882] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:01:20,453 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:01:20,453 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [27] imperfect sequences [] total 27 [2021-06-05 03:01:20,453 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [179029547] [2021-06-05 03:01:20,453 INFO L462 AbstractCegarLoop]: Interpolant automaton has 27 states [2021-06-05 03:01:20,453 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:01:20,454 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2021-06-05 03:01:20,454 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=56, Invalid=646, Unknown=0, NotChecked=0, Total=702 [2021-06-05 03:01:20,454 INFO L87 Difference]: Start difference. First operand 3476 states and 9515 transitions. Second operand has 27 states, 27 states have (on average 3.7777777777777777) internal successors, (102), 27 states have internal predecessors, (102), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:01:21,265 WARN L205 SmtUtils]: Spent 131.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 54 [2021-06-05 03:01:21,476 WARN L205 SmtUtils]: Spent 137.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 58 [2021-06-05 03:01:21,680 WARN L205 SmtUtils]: Spent 123.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 64 [2021-06-05 03:01:22,047 WARN L205 SmtUtils]: Spent 128.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 67 [2021-06-05 03:01:22,260 WARN L205 SmtUtils]: Spent 124.00 ms on a formula simplification. DAG size of input: 101 DAG size of output: 71 [2021-06-05 03:01:22,564 WARN L205 SmtUtils]: Spent 187.00 ms on a formula simplification. DAG size of input: 113 DAG size of output: 83 [2021-06-05 03:01:22,854 WARN L205 SmtUtils]: Spent 178.00 ms on a formula simplification. DAG size of input: 119 DAG size of output: 85 [2021-06-05 03:01:23,145 WARN L205 SmtUtils]: Spent 178.00 ms on a formula simplification. DAG size of input: 125 DAG size of output: 87 [2021-06-05 03:01:23,522 WARN L205 SmtUtils]: Spent 144.00 ms on a formula simplification. DAG size of input: 119 DAG size of output: 85 [2021-06-05 03:01:23,853 WARN L205 SmtUtils]: Spent 180.00 ms on a formula simplification. DAG size of input: 122 DAG size of output: 90 [2021-06-05 03:01:24,121 WARN L205 SmtUtils]: Spent 175.00 ms on a formula simplification. DAG size of input: 125 DAG size of output: 93 [2021-06-05 03:01:24,310 WARN L205 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 63 [2021-06-05 03:01:24,535 WARN L205 SmtUtils]: Spent 165.00 ms on a formula simplification. DAG size of input: 122 DAG size of output: 90 [2021-06-05 03:01:24,990 WARN L205 SmtUtils]: Spent 201.00 ms on a formula simplification. DAG size of input: 128 DAG size of output: 92 [2021-06-05 03:01:25,203 WARN L205 SmtUtils]: Spent 136.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 72 [2021-06-05 03:01:25,508 WARN L205 SmtUtils]: Spent 190.00 ms on a formula simplification. DAG size of input: 136 DAG size of output: 100 [2021-06-05 03:01:25,905 WARN L205 SmtUtils]: Spent 259.00 ms on a formula simplification. DAG size of input: 146 DAG size of output: 110 [2021-06-05 03:01:26,271 WARN L205 SmtUtils]: Spent 228.00 ms on a formula simplification. DAG size of input: 148 DAG size of output: 112 [2021-06-05 03:01:26,653 WARN L205 SmtUtils]: Spent 253.00 ms on a formula simplification. DAG size of input: 150 DAG size of output: 114 [2021-06-05 03:01:26,837 WARN L205 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 75 [2021-06-05 03:01:27,229 WARN L205 SmtUtils]: Spent 253.00 ms on a formula simplification. DAG size of input: 148 DAG size of output: 112 [2021-06-05 03:01:27,429 WARN L205 SmtUtils]: Spent 125.00 ms on a formula simplification. DAG size of input: 109 DAG size of output: 79 [2021-06-05 03:01:27,841 WARN L205 SmtUtils]: Spent 272.00 ms on a formula simplification. DAG size of input: 151 DAG size of output: 115 [2021-06-05 03:01:28,065 WARN L205 SmtUtils]: Spent 152.00 ms on a formula simplification. DAG size of input: 121 DAG size of output: 91 [2021-06-05 03:01:28,222 WARN L205 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 68 [2021-06-05 03:01:28,546 WARN L205 SmtUtils]: Spent 256.00 ms on a formula simplification. DAG size of input: 154 DAG size of output: 118 [2021-06-05 03:01:28,808 WARN L205 SmtUtils]: Spent 183.00 ms on a formula simplification. DAG size of input: 127 DAG size of output: 93 [2021-06-05 03:01:28,994 WARN L205 SmtUtils]: Spent 128.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 70 [2021-06-05 03:01:29,350 WARN L205 SmtUtils]: Spent 275.00 ms on a formula simplification. DAG size of input: 151 DAG size of output: 115 [2021-06-05 03:01:29,579 WARN L205 SmtUtils]: Spent 174.00 ms on a formula simplification. DAG size of input: 130 DAG size of output: 98 [2021-06-05 03:01:29,834 WARN L205 SmtUtils]: Spent 168.00 ms on a formula simplification. DAG size of input: 133 DAG size of output: 95 [2021-06-05 03:01:30,025 WARN L205 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 72 [2021-06-05 03:01:30,355 WARN L205 SmtUtils]: Spent 264.00 ms on a formula simplification. DAG size of input: 153 DAG size of output: 117 [2021-06-05 03:01:30,620 WARN L205 SmtUtils]: Spent 215.00 ms on a formula simplification. DAG size of input: 140 DAG size of output: 108 [2021-06-05 03:01:30,859 WARN L205 SmtUtils]: Spent 161.00 ms on a formula simplification. DAG size of input: 127 DAG size of output: 93 [2021-06-05 03:01:31,026 WARN L205 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 70 [2021-06-05 03:01:31,343 WARN L205 SmtUtils]: Spent 236.00 ms on a formula simplification. DAG size of input: 133 DAG size of output: 101 [2021-06-05 03:01:31,636 WARN L205 SmtUtils]: Spent 223.00 ms on a formula simplification. DAG size of input: 142 DAG size of output: 110 [2021-06-05 03:01:31,891 WARN L205 SmtUtils]: Spent 201.00 ms on a formula simplification. DAG size of input: 139 DAG size of output: 103 [2021-06-05 03:01:32,160 WARN L205 SmtUtils]: Spent 215.00 ms on a formula simplification. DAG size of input: 130 DAG size of output: 98 [2021-06-05 03:01:32,359 WARN L205 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 73 [2021-06-05 03:01:32,672 WARN L205 SmtUtils]: Spent 226.00 ms on a formula simplification. DAG size of input: 143 DAG size of output: 111 [2021-06-05 03:01:32,960 WARN L205 SmtUtils]: Spent 226.00 ms on a formula simplification. DAG size of input: 144 DAG size of output: 112 [2021-06-05 03:01:33,201 WARN L205 SmtUtils]: Spent 136.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 76 [2021-06-05 03:01:33,522 WARN L205 SmtUtils]: Spent 234.00 ms on a formula simplification. DAG size of input: 145 DAG size of output: 113 [2021-06-05 03:01:33,811 WARN L205 SmtUtils]: Spent 213.00 ms on a formula simplification. DAG size of input: 142 DAG size of output: 110 [2021-06-05 03:01:34,036 WARN L205 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 73 [2021-06-05 03:01:34,352 WARN L205 SmtUtils]: Spent 239.00 ms on a formula simplification. DAG size of input: 147 DAG size of output: 115 [2021-06-05 03:01:34,651 WARN L205 SmtUtils]: Spent 229.00 ms on a formula simplification. DAG size of input: 145 DAG size of output: 113 [2021-06-05 03:01:34,975 WARN L205 SmtUtils]: Spent 213.00 ms on a formula simplification. DAG size of input: 139 DAG size of output: 103 [2021-06-05 03:01:35,169 WARN L205 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 75 [2021-06-05 03:01:35,490 WARN L205 SmtUtils]: Spent 245.00 ms on a formula simplification. DAG size of input: 145 DAG size of output: 113 [2021-06-05 03:01:35,798 WARN L205 SmtUtils]: Spent 245.00 ms on a formula simplification. DAG size of input: 148 DAG size of output: 116 [2021-06-05 03:01:36,217 WARN L205 SmtUtils]: Spent 255.00 ms on a formula simplification. DAG size of input: 148 DAG size of output: 116 [2021-06-05 03:01:36,506 WARN L205 SmtUtils]: Spent 226.00 ms on a formula simplification. DAG size of input: 145 DAG size of output: 113 [2021-06-05 03:01:36,950 WARN L205 SmtUtils]: Spent 272.00 ms on a formula simplification. DAG size of input: 151 DAG size of output: 119 [2021-06-05 03:01:37,280 WARN L205 SmtUtils]: Spent 267.00 ms on a formula simplification. DAG size of input: 147 DAG size of output: 115 [2021-06-05 03:01:37,731 WARN L205 SmtUtils]: Spent 263.00 ms on a formula simplification. DAG size of input: 153 DAG size of output: 121 [2021-06-05 03:01:38,060 WARN L205 SmtUtils]: Spent 245.00 ms on a formula simplification. DAG size of input: 148 DAG size of output: 116 [2021-06-05 03:01:38,255 WARN L205 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 78 [2021-06-05 03:01:38,642 WARN L205 SmtUtils]: Spent 254.00 ms on a formula simplification. DAG size of input: 150 DAG size of output: 118 [2021-06-05 03:01:39,205 WARN L205 SmtUtils]: Spent 271.00 ms on a formula simplification. DAG size of input: 153 DAG size of output: 121 [2021-06-05 03:01:39,428 WARN L205 SmtUtils]: Spent 151.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 78 [2021-06-05 03:01:39,950 WARN L205 SmtUtils]: Spent 252.00 ms on a formula simplification. DAG size of input: 150 DAG size of output: 118 [2021-06-05 03:01:40,256 WARN L205 SmtUtils]: Spent 250.00 ms on a formula simplification. DAG size of input: 145 DAG size of output: 115 [2021-06-05 03:01:40,466 WARN L205 SmtUtils]: Spent 158.00 ms on a formula simplification. DAG size of input: 125 DAG size of output: 95 [2021-06-05 03:01:40,687 WARN L205 SmtUtils]: Spent 195.00 ms on a formula simplification. DAG size of input: 134 DAG size of output: 100 [2021-06-05 03:01:40,889 WARN L205 SmtUtils]: Spent 167.00 ms on a formula simplification. DAG size of input: 131 DAG size of output: 97 [2021-06-05 03:01:41,206 WARN L205 SmtUtils]: Spent 137.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 75 [2021-06-05 03:01:41,613 WARN L205 SmtUtils]: Spent 254.00 ms on a formula simplification. DAG size of input: 148 DAG size of output: 118 [2021-06-05 03:01:41,828 WARN L205 SmtUtils]: Spent 189.00 ms on a formula simplification. DAG size of input: 128 DAG size of output: 98 [2021-06-05 03:01:41,865 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:01:41,865 INFO L93 Difference]: Finished difference Result 14303 states and 39407 transitions. [2021-06-05 03:01:41,865 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 84 states. [2021-06-05 03:01:41,866 INFO L78 Accepts]: Start accepts. Automaton has has 27 states, 27 states have (on average 3.7777777777777777) internal successors, (102), 27 states have internal predecessors, (102), 0 states have call successors, (0), 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 102 [2021-06-05 03:01:41,866 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:01:41,918 INFO L225 Difference]: With dead ends: 14303 [2021-06-05 03:01:41,918 INFO L226 Difference]: Without dead ends: 14195 [2021-06-05 03:01:41,920 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 111 GetRequests, 5 SyntacticMatches, 1 SemanticMatches, 105 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2224 ImplicationChecksByTransitivity, 18597.5ms TimeCoverageRelationStatistics Valid=2926, Invalid=8416, Unknown=0, NotChecked=0, Total=11342 [2021-06-05 03:01:41,953 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14195 states. [2021-06-05 03:01:42,127 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14195 to 3990. [2021-06-05 03:01:42,134 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3990 states, 3989 states have (on average 2.747555778390574) internal successors, (10960), 3989 states have internal predecessors, (10960), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:01:42,144 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3990 states to 3990 states and 10960 transitions. [2021-06-05 03:01:42,144 INFO L78 Accepts]: Start accepts. Automaton has 3990 states and 10960 transitions. Word has length 102 [2021-06-05 03:01:42,145 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:01:42,145 INFO L482 AbstractCegarLoop]: Abstraction has 3990 states and 10960 transitions. [2021-06-05 03:01:42,145 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 27 states, 27 states have (on average 3.7777777777777777) internal successors, (102), 27 states have internal predecessors, (102), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:01:42,145 INFO L276 IsEmpty]: Start isEmpty. Operand 3990 states and 10960 transitions. [2021-06-05 03:01:42,154 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2021-06-05 03:01:42,154 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:01:42,154 INFO L521 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, 1] [2021-06-05 03:01:42,155 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-06-05 03:01:42,155 INFO L430 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-05 03:01:42,155 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:01:42,155 INFO L82 PathProgramCache]: Analyzing trace with hash -1415667755, now seen corresponding path program 1 times [2021-06-05 03:01:42,155 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:01:42,155 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1903589659] [2021-06-05 03:01:42,156 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:01:42,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:01:42,551 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:01:42,551 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:01:42,551 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1903589659] [2021-06-05 03:01:42,551 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1903589659] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-05 03:01:42,551 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [798393277] [2021-06-05 03:01:42,551 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 [2021-06-05 03:01:42,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:01:42,666 INFO L263 TraceCheckSpWp]: Trace formula consists of 233 conjuncts, 35 conjunts are in the unsatisfiable core [2021-06-05 03:01:42,673 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-05 03:01:43,250 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 23 treesize of output 7 [2021-06-05 03:01:43,252 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-06-05 03:01:43,253 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-06-05 03:01:43,253 INFO L550 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-06-05 03:01:43,253 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 4 variables, input treesize:23, output treesize:3 [2021-06-05 03:01:43,264 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:01:43,264 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [798393277] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-05 03:01:43,264 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-05 03:01:43,264 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 14] total 27 [2021-06-05 03:01:43,264 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [606830813] [2021-06-05 03:01:43,267 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-06-05 03:01:43,267 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:01:43,268 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-06-05 03:01:43,268 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=80, Invalid=676, Unknown=0, NotChecked=0, Total=756 [2021-06-05 03:01:43,268 INFO L87 Difference]: Start difference. First operand 3990 states and 10960 transitions. Second operand has 28 states, 27 states have (on average 7.037037037037037) internal successors, (190), 28 states have internal predecessors, (190), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:01:44,557 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:01:44,557 INFO L93 Difference]: Finished difference Result 5233 states and 14428 transitions. [2021-06-05 03:01:44,558 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2021-06-05 03:01:44,558 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 27 states have (on average 7.037037037037037) internal successors, (190), 28 states have internal predecessors, (190), 0 states have call successors, (0), 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 102 [2021-06-05 03:01:44,558 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:01:44,568 INFO L225 Difference]: With dead ends: 5233 [2021-06-05 03:01:44,568 INFO L226 Difference]: Without dead ends: 4100 [2021-06-05 03:01:44,569 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 136 GetRequests, 91 SyntacticMatches, 0 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 321 ImplicationChecksByTransitivity, 1245.7ms TimeCoverageRelationStatistics Valid=491, Invalid=1671, Unknown=0, NotChecked=0, Total=2162 [2021-06-05 03:01:44,592 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4100 states. [2021-06-05 03:01:44,667 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4100 to 2850. [2021-06-05 03:01:44,672 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2850 states, 2849 states have (on average 2.7314847314847315) internal successors, (7782), 2849 states have internal predecessors, (7782), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:01:44,680 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2850 states to 2850 states and 7782 transitions. [2021-06-05 03:01:44,680 INFO L78 Accepts]: Start accepts. Automaton has 2850 states and 7782 transitions. Word has length 102 [2021-06-05 03:01:44,680 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:01:44,680 INFO L482 AbstractCegarLoop]: Abstraction has 2850 states and 7782 transitions. [2021-06-05 03:01:44,681 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 27 states have (on average 7.037037037037037) internal successors, (190), 28 states have internal predecessors, (190), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:01:44,681 INFO L276 IsEmpty]: Start isEmpty. Operand 2850 states and 7782 transitions. [2021-06-05 03:01:44,687 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2021-06-05 03:01:44,688 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:01:44,688 INFO L521 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, 1] [2021-06-05 03:01:44,913 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2021-06-05 03:01:44,914 INFO L430 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-05 03:01:44,914 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:01:44,914 INFO L82 PathProgramCache]: Analyzing trace with hash 810183691, now seen corresponding path program 2 times [2021-06-05 03:01:44,914 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:01:44,914 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1072804372] [2021-06-05 03:01:44,914 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:01:44,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:01:46,132 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:01:46,132 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:01:46,132 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1072804372] [2021-06-05 03:01:46,132 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1072804372] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:01:46,132 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:01:46,132 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [27] imperfect sequences [] total 27 [2021-06-05 03:01:46,132 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [595987068] [2021-06-05 03:01:46,133 INFO L462 AbstractCegarLoop]: Interpolant automaton has 27 states [2021-06-05 03:01:46,133 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:01:46,133 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2021-06-05 03:01:46,133 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=56, Invalid=646, Unknown=0, NotChecked=0, Total=702 [2021-06-05 03:01:46,134 INFO L87 Difference]: Start difference. First operand 2850 states and 7782 transitions. Second operand has 27 states, 27 states have (on average 3.7777777777777777) internal successors, (102), 27 states have internal predecessors, (102), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:01:47,359 WARN L205 SmtUtils]: Spent 123.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 67 [2021-06-05 03:01:47,544 WARN L205 SmtUtils]: Spent 125.00 ms on a formula simplification. DAG size of input: 101 DAG size of output: 71 [2021-06-05 03:01:47,772 WARN L205 SmtUtils]: Spent 137.00 ms on a formula simplification. DAG size of input: 113 DAG size of output: 83 [2021-06-05 03:01:48,023 WARN L205 SmtUtils]: Spent 156.00 ms on a formula simplification. DAG size of input: 119 DAG size of output: 85 [2021-06-05 03:01:48,262 WARN L205 SmtUtils]: Spent 155.00 ms on a formula simplification. DAG size of input: 125 DAG size of output: 87 [2021-06-05 03:01:48,506 WARN L205 SmtUtils]: Spent 146.00 ms on a formula simplification. DAG size of input: 119 DAG size of output: 85 [2021-06-05 03:01:48,820 WARN L205 SmtUtils]: Spent 190.00 ms on a formula simplification. DAG size of input: 122 DAG size of output: 90 [2021-06-05 03:01:49,095 WARN L205 SmtUtils]: Spent 175.00 ms on a formula simplification. DAG size of input: 125 DAG size of output: 93 [2021-06-05 03:01:49,330 WARN L205 SmtUtils]: Spent 162.00 ms on a formula simplification. DAG size of input: 122 DAG size of output: 90 [2021-06-05 03:01:49,590 WARN L205 SmtUtils]: Spent 173.00 ms on a formula simplification. DAG size of input: 128 DAG size of output: 92 [2021-06-05 03:01:49,931 WARN L205 SmtUtils]: Spent 221.00 ms on a formula simplification. DAG size of input: 137 DAG size of output: 101 [2021-06-05 03:01:50,232 WARN L205 SmtUtils]: Spent 205.00 ms on a formula simplification. DAG size of input: 139 DAG size of output: 103 [2021-06-05 03:01:50,572 WARN L205 SmtUtils]: Spent 230.00 ms on a formula simplification. DAG size of input: 147 DAG size of output: 111 [2021-06-05 03:01:50,906 WARN L205 SmtUtils]: Spent 228.00 ms on a formula simplification. DAG size of input: 149 DAG size of output: 113 [2021-06-05 03:01:51,210 WARN L205 SmtUtils]: Spent 222.00 ms on a formula simplification. DAG size of input: 147 DAG size of output: 111 [2021-06-05 03:01:51,603 WARN L205 SmtUtils]: Spent 275.00 ms on a formula simplification. DAG size of input: 150 DAG size of output: 114 [2021-06-05 03:01:52,042 WARN L205 SmtUtils]: Spent 327.00 ms on a formula simplification. DAG size of input: 153 DAG size of output: 117 [2021-06-05 03:01:52,411 WARN L205 SmtUtils]: Spent 265.00 ms on a formula simplification. DAG size of input: 150 DAG size of output: 114 [2021-06-05 03:01:52,737 WARN L205 SmtUtils]: Spent 252.00 ms on a formula simplification. DAG size of input: 152 DAG size of output: 116 [2021-06-05 03:01:53,017 WARN L205 SmtUtils]: Spent 216.00 ms on a formula simplification. DAG size of input: 138 DAG size of output: 106 [2021-06-05 03:01:53,305 WARN L205 SmtUtils]: Spent 203.00 ms on a formula simplification. DAG size of input: 140 DAG size of output: 108 [2021-06-05 03:01:53,575 WARN L205 SmtUtils]: Spent 198.00 ms on a formula simplification. DAG size of input: 138 DAG size of output: 106 [2021-06-05 03:01:53,852 WARN L205 SmtUtils]: Spent 205.00 ms on a formula simplification. DAG size of input: 141 DAG size of output: 109 [2021-06-05 03:01:54,195 WARN L205 SmtUtils]: Spent 238.00 ms on a formula simplification. DAG size of input: 144 DAG size of output: 112 [2021-06-05 03:01:54,495 WARN L205 SmtUtils]: Spent 209.00 ms on a formula simplification. DAG size of input: 141 DAG size of output: 109 [2021-06-05 03:01:54,831 WARN L205 SmtUtils]: Spent 246.00 ms on a formula simplification. DAG size of input: 143 DAG size of output: 111 [2021-06-05 03:01:55,162 WARN L205 SmtUtils]: Spent 233.00 ms on a formula simplification. DAG size of input: 146 DAG size of output: 114 [2021-06-05 03:01:55,584 WARN L205 SmtUtils]: Spent 223.00 ms on a formula simplification. DAG size of input: 146 DAG size of output: 114 [2021-06-05 03:01:55,926 WARN L205 SmtUtils]: Spent 176.00 ms on a formula simplification. DAG size of input: 132 DAG size of output: 98 [2021-06-05 03:01:56,115 WARN L205 SmtUtils]: Spent 154.00 ms on a formula simplification. DAG size of input: 123 DAG size of output: 89 [2021-06-05 03:01:56,458 WARN L205 SmtUtils]: Spent 157.00 ms on a formula simplification. DAG size of input: 117 DAG size of output: 87 [2021-06-05 03:01:56,471 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:01:56,471 INFO L93 Difference]: Finished difference Result 8692 states and 24140 transitions. [2021-06-05 03:01:56,471 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 45 states. [2021-06-05 03:01:56,471 INFO L78 Accepts]: Start accepts. Automaton has has 27 states, 27 states have (on average 3.7777777777777777) internal successors, (102), 27 states have internal predecessors, (102), 0 states have call successors, (0), 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 102 [2021-06-05 03:01:56,471 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:01:56,489 INFO L225 Difference]: With dead ends: 8692 [2021-06-05 03:01:56,489 INFO L226 Difference]: Without dead ends: 7900 [2021-06-05 03:01:56,490 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 71 GetRequests, 5 SyntacticMatches, 1 SemanticMatches, 65 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 533 ImplicationChecksByTransitivity, 9082.9ms TimeCoverageRelationStatistics Valid=1220, Invalid=3202, Unknown=0, NotChecked=0, Total=4422 [2021-06-05 03:01:56,515 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7900 states. [2021-06-05 03:01:56,577 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7900 to 2906. [2021-06-05 03:01:56,581 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2906 states, 2905 states have (on average 2.734595524956971) internal successors, (7944), 2905 states have internal predecessors, (7944), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:01:56,587 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2906 states to 2906 states and 7944 transitions. [2021-06-05 03:01:56,587 INFO L78 Accepts]: Start accepts. Automaton has 2906 states and 7944 transitions. Word has length 102 [2021-06-05 03:01:56,588 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:01:56,588 INFO L482 AbstractCegarLoop]: Abstraction has 2906 states and 7944 transitions. [2021-06-05 03:01:56,588 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 27 states, 27 states have (on average 3.7777777777777777) internal successors, (102), 27 states have internal predecessors, (102), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:01:56,588 INFO L276 IsEmpty]: Start isEmpty. Operand 2906 states and 7944 transitions. [2021-06-05 03:01:56,594 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2021-06-05 03:01:56,595 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:01:56,595 INFO L521 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, 1] [2021-06-05 03:01:56,595 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-06-05 03:01:56,595 INFO L430 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-05 03:01:56,595 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:01:56,595 INFO L82 PathProgramCache]: Analyzing trace with hash 292790509, now seen corresponding path program 3 times [2021-06-05 03:01:56,596 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:01:56,596 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [391791203] [2021-06-05 03:01:56,596 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:01:56,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:01:57,648 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:01:57,649 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:01:57,649 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [391791203] [2021-06-05 03:01:57,649 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [391791203] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:01:57,649 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:01:57,649 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [27] imperfect sequences [] total 27 [2021-06-05 03:01:57,649 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2018741229] [2021-06-05 03:01:57,649 INFO L462 AbstractCegarLoop]: Interpolant automaton has 27 states [2021-06-05 03:01:57,649 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:01:57,650 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2021-06-05 03:01:57,650 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=56, Invalid=646, Unknown=0, NotChecked=0, Total=702 [2021-06-05 03:01:57,650 INFO L87 Difference]: Start difference. First operand 2906 states and 7944 transitions. Second operand has 27 states, 27 states have (on average 3.7777777777777777) internal successors, (102), 27 states have internal predecessors, (102), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:01:58,929 WARN L205 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 101 DAG size of output: 71 [2021-06-05 03:01:59,151 WARN L205 SmtUtils]: Spent 135.00 ms on a formula simplification. DAG size of input: 113 DAG size of output: 83 [2021-06-05 03:01:59,387 WARN L205 SmtUtils]: Spent 144.00 ms on a formula simplification. DAG size of input: 119 DAG size of output: 85 [2021-06-05 03:01:59,622 WARN L205 SmtUtils]: Spent 152.00 ms on a formula simplification. DAG size of input: 125 DAG size of output: 87 [2021-06-05 03:01:59,847 WARN L205 SmtUtils]: Spent 142.00 ms on a formula simplification. DAG size of input: 119 DAG size of output: 85 [2021-06-05 03:02:00,113 WARN L205 SmtUtils]: Spent 169.00 ms on a formula simplification. DAG size of input: 122 DAG size of output: 90 [2021-06-05 03:02:00,375 WARN L205 SmtUtils]: Spent 172.00 ms on a formula simplification. DAG size of input: 125 DAG size of output: 93 [2021-06-05 03:02:00,598 WARN L205 SmtUtils]: Spent 156.00 ms on a formula simplification. DAG size of input: 122 DAG size of output: 90 [2021-06-05 03:02:00,850 WARN L205 SmtUtils]: Spent 165.00 ms on a formula simplification. DAG size of input: 128 DAG size of output: 92 [2021-06-05 03:02:01,138 WARN L205 SmtUtils]: Spent 187.00 ms on a formula simplification. DAG size of input: 137 DAG size of output: 101 [2021-06-05 03:02:01,426 WARN L205 SmtUtils]: Spent 195.00 ms on a formula simplification. DAG size of input: 139 DAG size of output: 103 [2021-06-05 03:02:01,741 WARN L205 SmtUtils]: Spent 219.00 ms on a formula simplification. DAG size of input: 141 DAG size of output: 105 [2021-06-05 03:02:02,121 WARN L205 SmtUtils]: Spent 298.00 ms on a formula simplification. DAG size of input: 149 DAG size of output: 113 [2021-06-05 03:02:02,356 WARN L205 SmtUtils]: Spent 194.00 ms on a formula simplification. DAG size of input: 139 DAG size of output: 103 [2021-06-05 03:02:02,660 WARN L205 SmtUtils]: Spent 219.00 ms on a formula simplification. DAG size of input: 147 DAG size of output: 111 [2021-06-05 03:02:03,007 WARN L205 SmtUtils]: Spent 242.00 ms on a formula simplification. DAG size of input: 150 DAG size of output: 114 [2021-06-05 03:02:03,343 WARN L205 SmtUtils]: Spent 255.00 ms on a formula simplification. DAG size of input: 153 DAG size of output: 117 [2021-06-05 03:02:03,661 WARN L205 SmtUtils]: Spent 254.00 ms on a formula simplification. DAG size of input: 155 DAG size of output: 119 [2021-06-05 03:02:03,977 WARN L205 SmtUtils]: Spent 243.00 ms on a formula simplification. DAG size of input: 150 DAG size of output: 114 [2021-06-05 03:02:04,312 WARN L205 SmtUtils]: Spent 252.00 ms on a formula simplification. DAG size of input: 152 DAG size of output: 116 [2021-06-05 03:02:04,645 WARN L205 SmtUtils]: Spent 254.00 ms on a formula simplification. DAG size of input: 150 DAG size of output: 114 [2021-06-05 03:02:04,936 WARN L205 SmtUtils]: Spent 217.00 ms on a formula simplification. DAG size of input: 144 DAG size of output: 112 [2021-06-05 03:02:05,275 WARN L205 SmtUtils]: Spent 258.00 ms on a formula simplification. DAG size of input: 155 DAG size of output: 119 [2021-06-05 03:02:05,628 WARN L205 SmtUtils]: Spent 271.00 ms on a formula simplification. DAG size of input: 156 DAG size of output: 120 [2021-06-05 03:02:05,930 WARN L205 SmtUtils]: Spent 213.00 ms on a formula simplification. DAG size of input: 141 DAG size of output: 109 [2021-06-05 03:02:06,283 WARN L205 SmtUtils]: Spent 272.00 ms on a formula simplification. DAG size of input: 146 DAG size of output: 114 [2021-06-05 03:02:06,546 WARN L205 SmtUtils]: Spent 222.00 ms on a formula simplification. DAG size of input: 143 DAG size of output: 111 [2021-06-05 03:02:06,858 WARN L205 SmtUtils]: Spent 246.00 ms on a formula simplification. DAG size of input: 147 DAG size of output: 115 [2021-06-05 03:02:07,395 WARN L205 SmtUtils]: Spent 248.00 ms on a formula simplification. DAG size of input: 151 DAG size of output: 117 [2021-06-05 03:02:07,659 WARN L205 SmtUtils]: Spent 236.00 ms on a formula simplification. DAG size of input: 148 DAG size of output: 114 [2021-06-05 03:02:07,873 WARN L205 SmtUtils]: Spent 178.00 ms on a formula simplification. DAG size of input: 123 DAG size of output: 89 [2021-06-05 03:02:08,311 WARN L205 SmtUtils]: Spent 190.00 ms on a formula simplification. DAG size of input: 117 DAG size of output: 87 [2021-06-05 03:02:08,562 WARN L205 SmtUtils]: Spent 210.00 ms on a formula simplification. DAG size of input: 139 DAG size of output: 109 [2021-06-05 03:02:08,814 WARN L205 SmtUtils]: Spent 214.00 ms on a formula simplification. DAG size of input: 142 DAG size of output: 112 [2021-06-05 03:02:08,861 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:02:08,861 INFO L93 Difference]: Finished difference Result 11280 states and 31453 transitions. [2021-06-05 03:02:08,861 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 50 states. [2021-06-05 03:02:08,862 INFO L78 Accepts]: Start accepts. Automaton has has 27 states, 27 states have (on average 3.7777777777777777) internal successors, (102), 27 states have internal predecessors, (102), 0 states have call successors, (0), 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 102 [2021-06-05 03:02:08,862 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:02:08,884 INFO L225 Difference]: With dead ends: 11280 [2021-06-05 03:02:08,884 INFO L226 Difference]: Without dead ends: 10696 [2021-06-05 03:02:08,885 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 77 GetRequests, 5 SyntacticMatches, 1 SemanticMatches, 71 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 775 ImplicationChecksByTransitivity, 10063.2ms TimeCoverageRelationStatistics Valid=1425, Invalid=3831, Unknown=0, NotChecked=0, Total=5256 [2021-06-05 03:02:08,910 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10696 states. [2021-06-05 03:02:08,984 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10696 to 3006. [2021-06-05 03:02:08,989 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3006 states, 3005 states have (on average 2.73910149750416) internal successors, (8231), 3005 states have internal predecessors, (8231), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:02:08,996 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3006 states to 3006 states and 8231 transitions. [2021-06-05 03:02:08,996 INFO L78 Accepts]: Start accepts. Automaton has 3006 states and 8231 transitions. Word has length 102 [2021-06-05 03:02:08,997 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:02:08,997 INFO L482 AbstractCegarLoop]: Abstraction has 3006 states and 8231 transitions. [2021-06-05 03:02:08,997 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 27 states, 27 states have (on average 3.7777777777777777) internal successors, (102), 27 states have internal predecessors, (102), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:02:08,997 INFO L276 IsEmpty]: Start isEmpty. Operand 3006 states and 8231 transitions. [2021-06-05 03:02:09,004 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2021-06-05 03:02:09,004 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:02:09,004 INFO L521 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, 1] [2021-06-05 03:02:09,004 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-06-05 03:02:09,004 INFO L430 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-05 03:02:09,005 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:02:09,005 INFO L82 PathProgramCache]: Analyzing trace with hash 1544834349, now seen corresponding path program 4 times [2021-06-05 03:02:09,005 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:02:09,005 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [401369220] [2021-06-05 03:02:09,005 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:02:09,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:02:10,006 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:02:10,006 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:02:10,006 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [401369220] [2021-06-05 03:02:10,006 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [401369220] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:02:10,006 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:02:10,006 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [27] imperfect sequences [] total 27 [2021-06-05 03:02:10,006 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [554664468] [2021-06-05 03:02:10,007 INFO L462 AbstractCegarLoop]: Interpolant automaton has 27 states [2021-06-05 03:02:10,007 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:02:10,007 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2021-06-05 03:02:10,007 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=56, Invalid=646, Unknown=0, NotChecked=0, Total=702 [2021-06-05 03:02:10,008 INFO L87 Difference]: Start difference. First operand 3006 states and 8231 transitions. Second operand has 27 states, 27 states have (on average 3.7777777777777777) internal successors, (102), 27 states have internal predecessors, (102), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:02:11,264 WARN L205 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 101 DAG size of output: 71 [2021-06-05 03:02:11,475 WARN L205 SmtUtils]: Spent 137.00 ms on a formula simplification. DAG size of input: 113 DAG size of output: 83 [2021-06-05 03:02:11,711 WARN L205 SmtUtils]: Spent 143.00 ms on a formula simplification. DAG size of input: 119 DAG size of output: 85 [2021-06-05 03:02:11,944 WARN L205 SmtUtils]: Spent 152.00 ms on a formula simplification. DAG size of input: 125 DAG size of output: 87 [2021-06-05 03:02:12,113 WARN L205 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 67 [2021-06-05 03:02:12,311 WARN L205 SmtUtils]: Spent 156.00 ms on a formula simplification. DAG size of input: 119 DAG size of output: 85 [2021-06-05 03:02:12,588 WARN L205 SmtUtils]: Spent 171.00 ms on a formula simplification. DAG size of input: 122 DAG size of output: 90 [2021-06-05 03:02:12,856 WARN L205 SmtUtils]: Spent 172.00 ms on a formula simplification. DAG size of input: 125 DAG size of output: 93 [2021-06-05 03:02:13,044 WARN L205 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 72 [2021-06-05 03:02:13,375 WARN L205 SmtUtils]: Spent 160.00 ms on a formula simplification. DAG size of input: 122 DAG size of output: 90 [2021-06-05 03:02:13,561 WARN L205 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 76 [2021-06-05 03:02:13,803 WARN L205 SmtUtils]: Spent 166.00 ms on a formula simplification. DAG size of input: 128 DAG size of output: 92 [2021-06-05 03:02:13,995 WARN L205 SmtUtils]: Spent 133.00 ms on a formula simplification. DAG size of input: 100 DAG size of output: 82 [2021-06-05 03:02:14,312 WARN L205 SmtUtils]: Spent 188.00 ms on a formula simplification. DAG size of input: 137 DAG size of output: 101 [2021-06-05 03:02:14,491 WARN L205 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 69 [2021-06-05 03:02:14,765 WARN L205 SmtUtils]: Spent 197.00 ms on a formula simplification. DAG size of input: 139 DAG size of output: 103 [2021-06-05 03:02:14,995 WARN L205 SmtUtils]: Spent 144.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 73 [2021-06-05 03:02:15,263 WARN L205 SmtUtils]: Spent 205.00 ms on a formula simplification. DAG size of input: 141 DAG size of output: 105 [2021-06-05 03:02:15,464 WARN L205 SmtUtils]: Spent 126.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 79 [2021-06-05 03:02:15,746 WARN L205 SmtUtils]: Spent 204.00 ms on a formula simplification. DAG size of input: 139 DAG size of output: 103 [2021-06-05 03:02:15,942 WARN L205 SmtUtils]: Spent 145.00 ms on a formula simplification. DAG size of input: 111 DAG size of output: 85 [2021-06-05 03:02:16,378 WARN L205 SmtUtils]: Spent 201.00 ms on a formula simplification. DAG size of input: 141 DAG size of output: 105 [2021-06-05 03:02:16,586 WARN L205 SmtUtils]: Spent 157.00 ms on a formula simplification. DAG size of input: 121 DAG size of output: 89 [2021-06-05 03:02:16,950 WARN L205 SmtUtils]: Spent 252.00 ms on a formula simplification. DAG size of input: 157 DAG size of output: 119 [2021-06-05 03:02:17,239 WARN L205 SmtUtils]: Spent 239.00 ms on a formula simplification. DAG size of input: 150 DAG size of output: 113 [2021-06-05 03:02:17,544 WARN L205 SmtUtils]: Spent 227.00 ms on a formula simplification. DAG size of input: 148 DAG size of output: 110 [2021-06-05 03:02:17,779 WARN L205 SmtUtils]: Spent 184.00 ms on a formula simplification. DAG size of input: 133 DAG size of output: 101 [2021-06-05 03:02:18,143 WARN L205 SmtUtils]: Spent 250.00 ms on a formula simplification. DAG size of input: 159 DAG size of output: 121 [2021-06-05 03:02:18,448 WARN L205 SmtUtils]: Spent 242.00 ms on a formula simplification. DAG size of input: 154 DAG size of output: 116 [2021-06-05 03:02:18,707 WARN L205 SmtUtils]: Spent 197.00 ms on a formula simplification. DAG size of input: 139 DAG size of output: 103 [2021-06-05 03:02:18,910 WARN L205 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 107 DAG size of output: 82 [2021-06-05 03:02:19,255 WARN L205 SmtUtils]: Spent 253.00 ms on a formula simplification. DAG size of input: 159 DAG size of output: 120 [2021-06-05 03:02:19,531 WARN L205 SmtUtils]: Spent 217.00 ms on a formula simplification. DAG size of input: 149 DAG size of output: 112 [2021-06-05 03:02:19,829 WARN L205 SmtUtils]: Spent 244.00 ms on a formula simplification. DAG size of input: 140 DAG size of output: 104 [2021-06-05 03:02:20,087 WARN L205 SmtUtils]: Spent 207.00 ms on a formula simplification. DAG size of input: 145 DAG size of output: 105 [2021-06-05 03:02:20,308 WARN L205 SmtUtils]: Spent 159.00 ms on a formula simplification. DAG size of input: 117 DAG size of output: 86 [2021-06-05 03:02:20,730 WARN L205 SmtUtils]: Spent 245.00 ms on a formula simplification. DAG size of input: 157 DAG size of output: 118 [2021-06-05 03:02:20,996 WARN L205 SmtUtils]: Spent 209.00 ms on a formula simplification. DAG size of input: 142 DAG size of output: 108 [2021-06-05 03:02:21,318 WARN L205 SmtUtils]: Spent 244.00 ms on a formula simplification. DAG size of input: 153 DAG size of output: 115 [2021-06-05 03:02:21,569 WARN L205 SmtUtils]: Spent 195.00 ms on a formula simplification. DAG size of input: 139 DAG size of output: 103 [2021-06-05 03:02:21,809 WARN L205 SmtUtils]: Spent 177.00 ms on a formula simplification. DAG size of input: 129 DAG size of output: 98 [2021-06-05 03:02:22,152 WARN L205 SmtUtils]: Spent 236.00 ms on a formula simplification. DAG size of input: 155 DAG size of output: 117 [2021-06-05 03:02:22,421 WARN L205 SmtUtils]: Spent 203.00 ms on a formula simplification. DAG size of input: 144 DAG size of output: 107 [2021-06-05 03:02:22,684 WARN L205 SmtUtils]: Spent 214.00 ms on a formula simplification. DAG size of input: 142 DAG size of output: 108 [2021-06-05 03:02:22,925 WARN L205 SmtUtils]: Spent 181.00 ms on a formula simplification. DAG size of input: 135 DAG size of output: 100 [2021-06-05 03:02:23,396 WARN L205 SmtUtils]: Spent 191.00 ms on a formula simplification. DAG size of input: 134 DAG size of output: 102 [2021-06-05 03:02:23,688 WARN L205 SmtUtils]: Spent 224.00 ms on a formula simplification. DAG size of input: 145 DAG size of output: 111 [2021-06-05 03:02:23,940 WARN L205 SmtUtils]: Spent 189.00 ms on a formula simplification. DAG size of input: 141 DAG size of output: 102 [2021-06-05 03:02:24,250 WARN L205 SmtUtils]: Spent 177.00 ms on a formula simplification. DAG size of input: 135 DAG size of output: 100 [2021-06-05 03:02:24,527 WARN L205 SmtUtils]: Spent 194.00 ms on a formula simplification. DAG size of input: 138 DAG size of output: 105 [2021-06-05 03:02:24,803 WARN L205 SmtUtils]: Spent 201.00 ms on a formula simplification. DAG size of input: 138 DAG size of output: 105 [2021-06-05 03:02:25,156 WARN L205 SmtUtils]: Spent 215.00 ms on a formula simplification. DAG size of input: 141 DAG size of output: 108 [2021-06-05 03:02:25,449 WARN L205 SmtUtils]: Spent 193.00 ms on a formula simplification. DAG size of input: 138 DAG size of output: 105 [2021-06-05 03:02:25,840 WARN L205 SmtUtils]: Spent 270.00 ms on a formula simplification. DAG size of input: 153 DAG size of output: 115 [2021-06-05 03:02:26,101 WARN L205 SmtUtils]: Spent 208.00 ms on a formula simplification. DAG size of input: 144 DAG size of output: 107 [2021-06-05 03:02:26,556 WARN L205 SmtUtils]: Spent 249.00 ms on a formula simplification. DAG size of input: 152 DAG size of output: 115 [2021-06-05 03:02:26,818 WARN L205 SmtUtils]: Spent 232.00 ms on a formula simplification. DAG size of input: 143 DAG size of output: 107 [2021-06-05 03:02:27,358 WARN L205 SmtUtils]: Spent 192.00 ms on a formula simplification. DAG size of input: 137 DAG size of output: 105 [2021-06-05 03:02:27,370 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:02:27,371 INFO L93 Difference]: Finished difference Result 12712 states and 35518 transitions. [2021-06-05 03:02:27,371 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 78 states. [2021-06-05 03:02:27,371 INFO L78 Accepts]: Start accepts. Automaton has has 27 states, 27 states have (on average 3.7777777777777777) internal successors, (102), 27 states have internal predecessors, (102), 0 states have call successors, (0), 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 102 [2021-06-05 03:02:27,371 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:02:27,395 INFO L225 Difference]: With dead ends: 12712 [2021-06-05 03:02:27,395 INFO L226 Difference]: Without dead ends: 11828 [2021-06-05 03:02:27,397 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 105 GetRequests, 5 SyntacticMatches, 1 SemanticMatches, 99 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1997 ImplicationChecksByTransitivity, 15486.3ms TimeCoverageRelationStatistics Valid=2559, Invalid=7541, Unknown=0, NotChecked=0, Total=10100 [2021-06-05 03:02:27,424 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11828 states. [2021-06-05 03:02:27,496 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11828 to 2950. [2021-06-05 03:02:27,500 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2950 states, 2949 states have (on average 2.728043404543913) internal successors, (8045), 2949 states have internal predecessors, (8045), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:02:27,507 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2950 states to 2950 states and 8045 transitions. [2021-06-05 03:02:27,507 INFO L78 Accepts]: Start accepts. Automaton has 2950 states and 8045 transitions. Word has length 102 [2021-06-05 03:02:27,508 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:02:27,508 INFO L482 AbstractCegarLoop]: Abstraction has 2950 states and 8045 transitions. [2021-06-05 03:02:27,508 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 27 states, 27 states have (on average 3.7777777777777777) internal successors, (102), 27 states have internal predecessors, (102), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:02:27,508 INFO L276 IsEmpty]: Start isEmpty. Operand 2950 states and 8045 transitions. [2021-06-05 03:02:27,515 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2021-06-05 03:02:27,515 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:02:27,515 INFO L521 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, 1] [2021-06-05 03:02:27,515 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-06-05 03:02:27,515 INFO L430 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-05 03:02:27,515 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:02:27,516 INFO L82 PathProgramCache]: Analyzing trace with hash -1455136279, now seen corresponding path program 5 times [2021-06-05 03:02:27,516 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:02:27,516 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [874523807] [2021-06-05 03:02:27,516 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:02:27,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:02:28,492 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:02:28,493 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:02:28,493 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [874523807] [2021-06-05 03:02:28,493 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [874523807] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:02:28,493 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:02:28,493 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [27] imperfect sequences [] total 27 [2021-06-05 03:02:28,493 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1233089809] [2021-06-05 03:02:28,493 INFO L462 AbstractCegarLoop]: Interpolant automaton has 27 states [2021-06-05 03:02:28,493 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:02:28,493 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2021-06-05 03:02:28,494 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=56, Invalid=646, Unknown=0, NotChecked=0, Total=702 [2021-06-05 03:02:28,494 INFO L87 Difference]: Start difference. First operand 2950 states and 8045 transitions. Second operand has 27 states, 27 states have (on average 3.7777777777777777) internal successors, (102), 27 states have internal predecessors, (102), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:02:29,546 WARN L205 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 67 [2021-06-05 03:02:29,712 WARN L205 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 101 DAG size of output: 71 [2021-06-05 03:02:29,918 WARN L205 SmtUtils]: Spent 135.00 ms on a formula simplification. DAG size of input: 113 DAG size of output: 83 [2021-06-05 03:02:30,154 WARN L205 SmtUtils]: Spent 143.00 ms on a formula simplification. DAG size of input: 119 DAG size of output: 85 [2021-06-05 03:02:30,388 WARN L205 SmtUtils]: Spent 153.00 ms on a formula simplification. DAG size of input: 125 DAG size of output: 87 [2021-06-05 03:02:30,737 WARN L205 SmtUtils]: Spent 148.00 ms on a formula simplification. DAG size of input: 119 DAG size of output: 85 [2021-06-05 03:02:31,053 WARN L205 SmtUtils]: Spent 179.00 ms on a formula simplification. DAG size of input: 122 DAG size of output: 90 [2021-06-05 03:02:31,321 WARN L205 SmtUtils]: Spent 171.00 ms on a formula simplification. DAG size of input: 125 DAG size of output: 93 [2021-06-05 03:02:31,786 WARN L205 SmtUtils]: Spent 156.00 ms on a formula simplification. DAG size of input: 122 DAG size of output: 90 [2021-06-05 03:02:31,951 WARN L205 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 73 [2021-06-05 03:02:32,189 WARN L205 SmtUtils]: Spent 165.00 ms on a formula simplification. DAG size of input: 128 DAG size of output: 92 [2021-06-05 03:02:32,371 WARN L205 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 79 [2021-06-05 03:02:32,679 WARN L205 SmtUtils]: Spent 194.00 ms on a formula simplification. DAG size of input: 137 DAG size of output: 101 [2021-06-05 03:02:33,110 WARN L205 SmtUtils]: Spent 191.00 ms on a formula simplification. DAG size of input: 139 DAG size of output: 103 [2021-06-05 03:02:33,546 WARN L205 SmtUtils]: Spent 205.00 ms on a formula simplification. DAG size of input: 141 DAG size of output: 105 [2021-06-05 03:02:33,729 WARN L205 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 76 [2021-06-05 03:02:34,002 WARN L205 SmtUtils]: Spent 194.00 ms on a formula simplification. DAG size of input: 139 DAG size of output: 103 [2021-06-05 03:02:34,189 WARN L205 SmtUtils]: Spent 136.00 ms on a formula simplification. DAG size of input: 107 DAG size of output: 82 [2021-06-05 03:02:34,600 WARN L205 SmtUtils]: Spent 201.00 ms on a formula simplification. DAG size of input: 141 DAG size of output: 105 [2021-06-05 03:02:34,797 WARN L205 SmtUtils]: Spent 146.00 ms on a formula simplification. DAG size of input: 117 DAG size of output: 86 [2021-06-05 03:02:35,143 WARN L205 SmtUtils]: Spent 230.00 ms on a formula simplification. DAG size of input: 153 DAG size of output: 116 [2021-06-05 03:02:35,409 WARN L205 SmtUtils]: Spent 208.00 ms on a formula simplification. DAG size of input: 143 DAG size of output: 107 [2021-06-05 03:02:35,669 WARN L205 SmtUtils]: Spent 215.00 ms on a formula simplification. DAG size of input: 144 DAG size of output: 107 [2021-06-05 03:02:35,892 WARN L205 SmtUtils]: Spent 172.00 ms on a formula simplification. DAG size of input: 129 DAG size of output: 98 [2021-06-05 03:02:36,251 WARN L205 SmtUtils]: Spent 236.00 ms on a formula simplification. DAG size of input: 155 DAG size of output: 118 [2021-06-05 03:02:36,542 WARN L205 SmtUtils]: Spent 228.00 ms on a formula simplification. DAG size of input: 152 DAG size of output: 115 [2021-06-05 03:02:36,786 WARN L205 SmtUtils]: Spent 204.00 ms on a formula simplification. DAG size of input: 141 DAG size of output: 105 [2021-06-05 03:02:37,022 WARN L205 SmtUtils]: Spent 180.00 ms on a formula simplification. DAG size of input: 135 DAG size of output: 100 [2021-06-05 03:02:37,211 WARN L205 SmtUtils]: Spent 126.00 ms on a formula simplification. DAG size of input: 103 DAG size of output: 79 [2021-06-05 03:02:37,542 WARN L205 SmtUtils]: Spent 240.00 ms on a formula simplification. DAG size of input: 155 DAG size of output: 117 [2021-06-05 03:02:37,872 WARN L205 SmtUtils]: Spent 257.00 ms on a formula simplification. DAG size of input: 150 DAG size of output: 113 [2021-06-05 03:02:38,118 WARN L205 SmtUtils]: Spent 196.00 ms on a formula simplification. DAG size of input: 140 DAG size of output: 104 [2021-06-05 03:02:38,360 WARN L205 SmtUtils]: Spent 189.00 ms on a formula simplification. DAG size of input: 141 DAG size of output: 102 [2021-06-05 03:02:38,561 WARN L205 SmtUtils]: Spent 131.00 ms on a formula simplification. DAG size of input: 113 DAG size of output: 83 [2021-06-05 03:02:38,980 WARN L205 SmtUtils]: Spent 230.00 ms on a formula simplification. DAG size of input: 153 DAG size of output: 115 [2021-06-05 03:02:39,236 WARN L205 SmtUtils]: Spent 196.00 ms on a formula simplification. DAG size of input: 138 DAG size of output: 105 [2021-06-05 03:02:39,539 WARN L205 SmtUtils]: Spent 241.00 ms on a formula simplification. DAG size of input: 154 DAG size of output: 116 [2021-06-05 03:02:39,779 WARN L205 SmtUtils]: Spent 179.00 ms on a formula simplification. DAG size of input: 135 DAG size of output: 100 [2021-06-05 03:02:40,001 WARN L205 SmtUtils]: Spent 157.00 ms on a formula simplification. DAG size of input: 125 DAG size of output: 95 [2021-06-05 03:02:40,367 WARN L205 SmtUtils]: Spent 259.00 ms on a formula simplification. DAG size of input: 155 DAG size of output: 117 [2021-06-05 03:02:40,667 WARN L205 SmtUtils]: Spent 237.00 ms on a formula simplification. DAG size of input: 153 DAG size of output: 116 [2021-06-05 03:02:40,926 WARN L205 SmtUtils]: Spent 201.00 ms on a formula simplification. DAG size of input: 138 DAG size of output: 105 [2021-06-05 03:02:41,150 WARN L205 SmtUtils]: Spent 164.00 ms on a formula simplification. DAG size of input: 131 DAG size of output: 97 [2021-06-05 03:02:41,464 WARN L205 SmtUtils]: Spent 180.00 ms on a formula simplification. DAG size of input: 134 DAG size of output: 102 [2021-06-05 03:02:41,758 WARN L205 SmtUtils]: Spent 220.00 ms on a formula simplification. DAG size of input: 141 DAG size of output: 108 [2021-06-05 03:02:41,993 WARN L205 SmtUtils]: Spent 173.00 ms on a formula simplification. DAG size of input: 137 DAG size of output: 99 [2021-06-05 03:02:42,288 WARN L205 SmtUtils]: Spent 165.00 ms on a formula simplification. DAG size of input: 131 DAG size of output: 97 [2021-06-05 03:02:42,583 WARN L205 SmtUtils]: Spent 182.00 ms on a formula simplification. DAG size of input: 134 DAG size of output: 102 [2021-06-05 03:02:42,936 WARN L205 SmtUtils]: Spent 261.00 ms on a formula simplification. DAG size of input: 157 DAG size of output: 119 [2021-06-05 03:02:43,221 WARN L205 SmtUtils]: Spent 209.00 ms on a formula simplification. DAG size of input: 137 DAG size of output: 105 [2021-06-05 03:02:43,498 WARN L205 SmtUtils]: Spent 181.00 ms on a formula simplification. DAG size of input: 134 DAG size of output: 102 [2021-06-05 03:02:43,773 WARN L205 SmtUtils]: Spent 188.00 ms on a formula simplification. DAG size of input: 140 DAG size of output: 104 [2021-06-05 03:02:44,313 WARN L205 SmtUtils]: Spent 239.00 ms on a formula simplification. DAG size of input: 152 DAG size of output: 116 [2021-06-05 03:02:44,562 WARN L205 SmtUtils]: Spent 222.00 ms on a formula simplification. DAG size of input: 149 DAG size of output: 113 [2021-06-05 03:02:44,804 WARN L205 SmtUtils]: Spent 209.00 ms on a formula simplification. DAG size of input: 139 DAG size of output: 104 [2021-06-05 03:02:45,325 WARN L205 SmtUtils]: Spent 179.00 ms on a formula simplification. DAG size of input: 133 DAG size of output: 102 [2021-06-05 03:02:45,548 WARN L205 SmtUtils]: Spent 192.00 ms on a formula simplification. DAG size of input: 136 DAG size of output: 105 [2021-06-05 03:02:45,558 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:02:45,558 INFO L93 Difference]: Finished difference Result 13915 states and 39068 transitions. [2021-06-05 03:02:45,558 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 79 states. [2021-06-05 03:02:45,558 INFO L78 Accepts]: Start accepts. Automaton has has 27 states, 27 states have (on average 3.7777777777777777) internal successors, (102), 27 states have internal predecessors, (102), 0 states have call successors, (0), 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 102 [2021-06-05 03:02:45,558 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:02:45,581 INFO L225 Difference]: With dead ends: 13915 [2021-06-05 03:02:45,581 INFO L226 Difference]: Without dead ends: 13879 [2021-06-05 03:02:45,583 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 106 GetRequests, 5 SyntacticMatches, 1 SemanticMatches, 100 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2047 ImplicationChecksByTransitivity, 15183.3ms TimeCoverageRelationStatistics Valid=2632, Invalid=7670, Unknown=0, NotChecked=0, Total=10302 [2021-06-05 03:02:45,612 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13879 states. [2021-06-05 03:02:45,690 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13879 to 2958. [2021-06-05 03:02:45,695 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2958 states, 2957 states have (on average 2.728102806898884) internal successors, (8067), 2957 states have internal predecessors, (8067), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:02:45,702 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2958 states to 2958 states and 8067 transitions. [2021-06-05 03:02:45,702 INFO L78 Accepts]: Start accepts. Automaton has 2958 states and 8067 transitions. Word has length 102 [2021-06-05 03:02:45,702 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:02:45,702 INFO L482 AbstractCegarLoop]: Abstraction has 2958 states and 8067 transitions. [2021-06-05 03:02:45,702 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 27 states, 27 states have (on average 3.7777777777777777) internal successors, (102), 27 states have internal predecessors, (102), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:02:45,702 INFO L276 IsEmpty]: Start isEmpty. Operand 2958 states and 8067 transitions. [2021-06-05 03:02:45,708 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2021-06-05 03:02:45,708 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:02:45,708 INFO L521 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, 1] [2021-06-05 03:02:45,708 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-06-05 03:02:45,708 INFO L430 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-05 03:02:45,709 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:02:45,709 INFO L82 PathProgramCache]: Analyzing trace with hash 2098997895, now seen corresponding path program 6 times [2021-06-05 03:02:45,709 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:02:45,709 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [761591577] [2021-06-05 03:02:45,709 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:02:45,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:02:46,958 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:02:46,958 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:02:46,958 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [761591577] [2021-06-05 03:02:46,958 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [761591577] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:02:46,958 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:02:46,958 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [27] imperfect sequences [] total 27 [2021-06-05 03:02:46,958 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [111897678] [2021-06-05 03:02:46,958 INFO L462 AbstractCegarLoop]: Interpolant automaton has 27 states [2021-06-05 03:02:46,958 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:02:46,959 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2021-06-05 03:02:46,959 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=56, Invalid=646, Unknown=0, NotChecked=0, Total=702 [2021-06-05 03:02:46,959 INFO L87 Difference]: Start difference. First operand 2958 states and 8067 transitions. Second operand has 27 states, 27 states have (on average 3.7777777777777777) internal successors, (102), 27 states have internal predecessors, (102), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:02:47,730 WARN L205 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 62 [2021-06-05 03:02:48,141 WARN L205 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 69 [2021-06-05 03:02:48,339 WARN L205 SmtUtils]: Spent 128.00 ms on a formula simplification. DAG size of input: 109 DAG size of output: 81 [2021-06-05 03:02:48,567 WARN L205 SmtUtils]: Spent 137.00 ms on a formula simplification. DAG size of input: 115 DAG size of output: 83 [2021-06-05 03:02:48,790 WARN L205 SmtUtils]: Spent 144.00 ms on a formula simplification. DAG size of input: 121 DAG size of output: 85 [2021-06-05 03:02:49,006 WARN L205 SmtUtils]: Spent 135.00 ms on a formula simplification. DAG size of input: 115 DAG size of output: 83 [2021-06-05 03:02:49,269 WARN L205 SmtUtils]: Spent 166.00 ms on a formula simplification. DAG size of input: 118 DAG size of output: 88 [2021-06-05 03:02:49,518 WARN L205 SmtUtils]: Spent 164.00 ms on a formula simplification. DAG size of input: 121 DAG size of output: 91 [2021-06-05 03:02:49,732 WARN L205 SmtUtils]: Spent 148.00 ms on a formula simplification. DAG size of input: 118 DAG size of output: 88 [2021-06-05 03:02:49,972 WARN L205 SmtUtils]: Spent 157.00 ms on a formula simplification. DAG size of input: 124 DAG size of output: 90 [2021-06-05 03:02:50,248 WARN L205 SmtUtils]: Spent 178.00 ms on a formula simplification. DAG size of input: 133 DAG size of output: 99 [2021-06-05 03:02:50,527 WARN L205 SmtUtils]: Spent 186.00 ms on a formula simplification. DAG size of input: 135 DAG size of output: 101 [2021-06-05 03:02:50,820 WARN L205 SmtUtils]: Spent 200.00 ms on a formula simplification. DAG size of input: 137 DAG size of output: 103 [2021-06-05 03:02:51,087 WARN L205 SmtUtils]: Spent 183.00 ms on a formula simplification. DAG size of input: 135 DAG size of output: 101 [2021-06-05 03:02:51,360 WARN L205 SmtUtils]: Spent 191.00 ms on a formula simplification. DAG size of input: 137 DAG size of output: 103 [2021-06-05 03:02:51,650 WARN L205 SmtUtils]: Spent 196.00 ms on a formula simplification. DAG size of input: 139 DAG size of output: 105 [2021-06-05 03:02:51,928 WARN L205 SmtUtils]: Spent 193.00 ms on a formula simplification. DAG size of input: 137 DAG size of output: 103 [2021-06-05 03:02:52,240 WARN L205 SmtUtils]: Spent 225.00 ms on a formula simplification. DAG size of input: 139 DAG size of output: 105 [2021-06-05 03:02:52,535 WARN L205 SmtUtils]: Spent 215.00 ms on a formula simplification. DAG size of input: 147 DAG size of output: 113 [2021-06-05 03:02:52,956 WARN L205 SmtUtils]: Spent 235.00 ms on a formula simplification. DAG size of input: 150 DAG size of output: 116 [2021-06-05 03:02:53,270 WARN L205 SmtUtils]: Spent 182.00 ms on a formula simplification. DAG size of input: 129 DAG size of output: 99 [2021-06-05 03:02:53,514 WARN L205 SmtUtils]: Spent 206.00 ms on a formula simplification. DAG size of input: 140 DAG size of output: 106 [2021-06-05 03:02:53,825 WARN L205 SmtUtils]: Spent 216.00 ms on a formula simplification. DAG size of input: 132 DAG size of output: 102 [2021-06-05 03:02:54,176 WARN L205 SmtUtils]: Spent 147.00 ms on a formula simplification. DAG size of input: 110 DAG size of output: 91 [2021-06-05 03:02:54,323 WARN L205 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 78 [2021-06-05 03:02:54,554 WARN L205 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 76 [2021-06-05 03:02:54,712 WARN L205 SmtUtils]: Spent 125.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 79 [2021-06-05 03:02:54,729 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:02:54,729 INFO L93 Difference]: Finished difference Result 10774 states and 30232 transitions. [2021-06-05 03:02:54,730 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 40 states. [2021-06-05 03:02:54,730 INFO L78 Accepts]: Start accepts. Automaton has has 27 states, 27 states have (on average 3.7777777777777777) internal successors, (102), 27 states have internal predecessors, (102), 0 states have call successors, (0), 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 102 [2021-06-05 03:02:54,730 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:02:54,748 INFO L225 Difference]: With dead ends: 10774 [2021-06-05 03:02:54,749 INFO L226 Difference]: Without dead ends: 10762 [2021-06-05 03:02:54,750 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 68 GetRequests, 3 SyntacticMatches, 4 SemanticMatches, 61 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 423 ImplicationChecksByTransitivity, 6997.9ms TimeCoverageRelationStatistics Valid=1017, Invalid=2889, Unknown=0, NotChecked=0, Total=3906 [2021-06-05 03:02:54,775 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10762 states. [2021-06-05 03:02:54,845 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10762 to 2962. [2021-06-05 03:02:54,849 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2962 states, 2961 states have (on average 2.728132387706856) internal successors, (8078), 2961 states have internal predecessors, (8078), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:02:54,855 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2962 states to 2962 states and 8078 transitions. [2021-06-05 03:02:54,856 INFO L78 Accepts]: Start accepts. Automaton has 2962 states and 8078 transitions. Word has length 102 [2021-06-05 03:02:54,856 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:02:54,856 INFO L482 AbstractCegarLoop]: Abstraction has 2962 states and 8078 transitions. [2021-06-05 03:02:54,856 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 27 states, 27 states have (on average 3.7777777777777777) internal successors, (102), 27 states have internal predecessors, (102), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:02:54,856 INFO L276 IsEmpty]: Start isEmpty. Operand 2962 states and 8078 transitions. [2021-06-05 03:02:54,861 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2021-06-05 03:02:54,861 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:02:54,862 INFO L521 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, 1] [2021-06-05 03:02:54,862 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2021-06-05 03:02:54,862 INFO L430 AbstractCegarLoop]: === Iteration 12 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-05 03:02:54,862 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:02:54,862 INFO L82 PathProgramCache]: Analyzing trace with hash -960756363, now seen corresponding path program 7 times [2021-06-05 03:02:54,862 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:02:54,862 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1560870872] [2021-06-05 03:02:54,862 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:02:54,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:02:56,113 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:02:56,113 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:02:56,113 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1560870872] [2021-06-05 03:02:56,113 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1560870872] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:02:56,113 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:02:56,113 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [27] imperfect sequences [] total 27 [2021-06-05 03:02:56,113 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1203034911] [2021-06-05 03:02:56,114 INFO L462 AbstractCegarLoop]: Interpolant automaton has 27 states [2021-06-05 03:02:56,114 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:02:56,114 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2021-06-05 03:02:56,114 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=56, Invalid=646, Unknown=0, NotChecked=0, Total=702 [2021-06-05 03:02:56,115 INFO L87 Difference]: Start difference. First operand 2962 states and 8078 transitions. Second operand has 27 states, 27 states have (on average 3.7777777777777777) internal successors, (102), 27 states have internal predecessors, (102), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:02:57,217 WARN L205 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 66 [2021-06-05 03:02:57,379 WARN L205 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 69 [2021-06-05 03:02:57,581 WARN L205 SmtUtils]: Spent 129.00 ms on a formula simplification. DAG size of input: 109 DAG size of output: 81 [2021-06-05 03:02:57,806 WARN L205 SmtUtils]: Spent 136.00 ms on a formula simplification. DAG size of input: 115 DAG size of output: 83 [2021-06-05 03:02:58,027 WARN L205 SmtUtils]: Spent 143.00 ms on a formula simplification. DAG size of input: 121 DAG size of output: 85 [2021-06-05 03:02:58,245 WARN L205 SmtUtils]: Spent 138.00 ms on a formula simplification. DAG size of input: 115 DAG size of output: 83 [2021-06-05 03:02:58,497 WARN L205 SmtUtils]: Spent 155.00 ms on a formula simplification. DAG size of input: 118 DAG size of output: 88 [2021-06-05 03:02:58,766 WARN L205 SmtUtils]: Spent 164.00 ms on a formula simplification. DAG size of input: 121 DAG size of output: 91 [2021-06-05 03:02:58,981 WARN L205 SmtUtils]: Spent 149.00 ms on a formula simplification. DAG size of input: 118 DAG size of output: 88 [2021-06-05 03:02:59,222 WARN L205 SmtUtils]: Spent 157.00 ms on a formula simplification. DAG size of input: 124 DAG size of output: 90 [2021-06-05 03:02:59,527 WARN L205 SmtUtils]: Spent 207.00 ms on a formula simplification. DAG size of input: 133 DAG size of output: 99 [2021-06-05 03:02:59,804 WARN L205 SmtUtils]: Spent 183.00 ms on a formula simplification. DAG size of input: 135 DAG size of output: 101 [2021-06-05 03:03:00,085 WARN L205 SmtUtils]: Spent 190.00 ms on a formula simplification. DAG size of input: 137 DAG size of output: 103 [2021-06-05 03:03:00,355 WARN L205 SmtUtils]: Spent 184.00 ms on a formula simplification. DAG size of input: 135 DAG size of output: 101 [2021-06-05 03:03:00,634 WARN L205 SmtUtils]: Spent 188.00 ms on a formula simplification. DAG size of input: 137 DAG size of output: 103 [2021-06-05 03:03:00,925 WARN L205 SmtUtils]: Spent 195.00 ms on a formula simplification. DAG size of input: 139 DAG size of output: 105 [2021-06-05 03:03:01,200 WARN L205 SmtUtils]: Spent 191.00 ms on a formula simplification. DAG size of input: 137 DAG size of output: 103 [2021-06-05 03:03:01,496 WARN L205 SmtUtils]: Spent 206.00 ms on a formula simplification. DAG size of input: 139 DAG size of output: 105 [2021-06-05 03:03:01,797 WARN L205 SmtUtils]: Spent 221.00 ms on a formula simplification. DAG size of input: 147 DAG size of output: 112 [2021-06-05 03:03:02,277 WARN L205 SmtUtils]: Spent 168.00 ms on a formula simplification. DAG size of input: 110 DAG size of output: 91 [2021-06-05 03:03:02,423 WARN L205 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 78 [2021-06-05 03:03:02,652 WARN L205 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 76 [2021-06-05 03:03:02,663 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:03:02,664 INFO L93 Difference]: Finished difference Result 8524 states and 23750 transitions. [2021-06-05 03:03:02,664 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2021-06-05 03:03:02,664 INFO L78 Accepts]: Start accepts. Automaton has has 27 states, 27 states have (on average 3.7777777777777777) internal successors, (102), 27 states have internal predecessors, (102), 0 states have call successors, (0), 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 102 [2021-06-05 03:03:02,664 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:03:02,674 INFO L225 Difference]: With dead ends: 8524 [2021-06-05 03:03:02,674 INFO L226 Difference]: Without dead ends: 8524 [2021-06-05 03:03:02,675 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 3 SyntacticMatches, 4 SemanticMatches, 56 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 308 ImplicationChecksByTransitivity, 5912.8ms TimeCoverageRelationStatistics Valid=835, Invalid=2471, Unknown=0, NotChecked=0, Total=3306 [2021-06-05 03:03:02,694 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8524 states. [2021-06-05 03:03:02,750 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8524 to 2990. [2021-06-05 03:03:02,754 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2990 states, 2989 states have (on average 2.7296754767480764) internal successors, (8159), 2989 states have internal predecessors, (8159), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:03:02,760 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2990 states to 2990 states and 8159 transitions. [2021-06-05 03:03:02,761 INFO L78 Accepts]: Start accepts. Automaton has 2990 states and 8159 transitions. Word has length 102 [2021-06-05 03:03:02,761 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:03:02,761 INFO L482 AbstractCegarLoop]: Abstraction has 2990 states and 8159 transitions. [2021-06-05 03:03:02,761 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 27 states, 27 states have (on average 3.7777777777777777) internal successors, (102), 27 states have internal predecessors, (102), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:03:02,761 INFO L276 IsEmpty]: Start isEmpty. Operand 2990 states and 8159 transitions. [2021-06-05 03:03:02,766 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2021-06-05 03:03:02,766 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:03:02,766 INFO L521 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, 1] [2021-06-05 03:03:02,767 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2021-06-05 03:03:02,767 INFO L430 AbstractCegarLoop]: === Iteration 13 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-05 03:03:02,767 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:03:02,767 INFO L82 PathProgramCache]: Analyzing trace with hash -2143057221, now seen corresponding path program 8 times [2021-06-05 03:03:02,767 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:03:02,767 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [472402309] [2021-06-05 03:03:02,767 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:03:02,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:03:03,736 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:03:03,741 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:03:03,741 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [472402309] [2021-06-05 03:03:03,741 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [472402309] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-05 03:03:03,741 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [763568337] [2021-06-05 03:03:03,741 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 [2021-06-05 03:03:03,838 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-06-05 03:03:03,838 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-06-05 03:03:03,840 INFO L263 TraceCheckSpWp]: Trace formula consists of 233 conjuncts, 70 conjunts are in the unsatisfiable core [2021-06-05 03:03:03,844 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-05 03:03:03,893 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 [2021-06-05 03:03:03,894 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-06-05 03:03:03,902 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-06-05 03:03:03,903 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-06-05 03:03:03,903 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:22, output treesize:21 [2021-06-05 03:03:03,928 INFO L354 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2021-06-05 03:03:03,928 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 [2021-06-05 03:03:03,932 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-06-05 03:03:03,943 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-06-05 03:03:03,944 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-06-05 03:03:03,944 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:32, output treesize:30 [2021-06-05 03:03:04,121 INFO L354 Elim1Store]: treesize reduction 8, result has 52.9 percent of original size [2021-06-05 03:03:04,122 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 16 treesize of output 18 [2021-06-05 03:03:04,125 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-06-05 03:03:04,139 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-06-05 03:03:04,140 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-06-05 03:03:04,140 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:38, output treesize:31 [2021-06-05 03:03:04,292 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 18 [2021-06-05 03:03:04,295 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-06-05 03:03:04,313 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-06-05 03:03:04,317 INFO L550 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-06-05 03:03:04,318 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 4 variables, input treesize:49, output treesize:30 [2021-06-05 03:03:04,526 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 19 treesize of output 18 [2021-06-05 03:03:04,528 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-06-05 03:03:04,541 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-06-05 03:03:04,544 INFO L550 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-06-05 03:03:04,544 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 4 variables, input treesize:41, output treesize:26 [2021-06-05 03:03:06,141 INFO L354 Elim1Store]: treesize reduction 4, result has 66.7 percent of original size [2021-06-05 03:03:06,141 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 47 treesize of output 26 [2021-06-05 03:03:06,143 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-06-05 03:03:06,151 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-06-05 03:03:06,152 INFO L550 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-06-05 03:03:06,152 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:47, output treesize:7 [2021-06-05 03:03:06,169 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:03:06,170 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [763568337] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-05 03:03:06,170 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-05 03:03:06,170 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [26, 27] total 45 [2021-06-05 03:03:06,170 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1923408631] [2021-06-05 03:03:06,171 INFO L462 AbstractCegarLoop]: Interpolant automaton has 46 states [2021-06-05 03:03:06,171 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:03:06,172 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 46 interpolants. [2021-06-05 03:03:06,172 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=150, Invalid=1920, Unknown=0, NotChecked=0, Total=2070 [2021-06-05 03:03:06,173 INFO L87 Difference]: Start difference. First operand 2990 states and 8159 transitions. Second operand has 46 states, 45 states have (on average 3.977777777777778) internal successors, (179), 46 states have internal predecessors, (179), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:03:07,121 WARN L205 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 57 [2021-06-05 03:03:07,281 WARN L205 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 63 [2021-06-05 03:03:07,467 WARN L205 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 67 [2021-06-05 03:03:07,693 WARN L205 SmtUtils]: Spent 152.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 71 [2021-06-05 03:03:07,893 WARN L205 SmtUtils]: Spent 125.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 67 [2021-06-05 03:03:08,260 WARN L205 SmtUtils]: Spent 127.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 69 [2021-06-05 03:03:08,439 WARN L205 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 65 [2021-06-05 03:03:08,615 WARN L205 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 101 DAG size of output: 73 [2021-06-05 03:03:08,788 WARN L205 SmtUtils]: Spent 128.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 69 [2021-06-05 03:03:09,034 WARN L205 SmtUtils]: Spent 163.00 ms on a formula simplification. DAG size of input: 104 DAG size of output: 74 [2021-06-05 03:03:09,209 WARN L205 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 65 [2021-06-05 03:03:09,397 WARN L205 SmtUtils]: Spent 139.00 ms on a formula simplification. DAG size of input: 101 DAG size of output: 72 [2021-06-05 03:03:09,743 WARN L205 SmtUtils]: Spent 162.00 ms on a formula simplification. DAG size of input: 110 DAG size of output: 74 [2021-06-05 03:03:10,013 WARN L205 SmtUtils]: Spent 134.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 67 [2021-06-05 03:03:10,210 WARN L205 SmtUtils]: Spent 131.00 ms on a formula simplification. DAG size of input: 98 DAG size of output: 72 [2021-06-05 03:03:10,421 WARN L205 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 71 [2021-06-05 03:03:10,644 WARN L205 SmtUtils]: Spent 133.00 ms on a formula simplification. DAG size of input: 100 DAG size of output: 72 [2021-06-05 03:03:10,884 WARN L205 SmtUtils]: Spent 129.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 70 [2021-06-05 03:03:11,245 WARN L205 SmtUtils]: Spent 143.00 ms on a formula simplification. DAG size of input: 106 DAG size of output: 72 [2021-06-05 03:03:11,521 WARN L205 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 70 [2021-06-05 03:03:12,026 WARN L205 SmtUtils]: Spent 141.00 ms on a formula simplification. DAG size of input: 103 DAG size of output: 74 [2021-06-05 03:03:12,200 WARN L205 SmtUtils]: Spent 131.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 72 [2021-06-05 03:03:12,377 WARN L205 SmtUtils]: Spent 130.00 ms on a formula simplification. DAG size of input: 98 DAG size of output: 69 [2021-06-05 03:03:12,666 WARN L205 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 67 [2021-06-05 03:03:12,930 WARN L205 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 72 [2021-06-05 03:03:13,179 WARN L205 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 70 [2021-06-05 03:03:13,746 WARN L205 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 62 [2021-06-05 03:03:15,106 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:03:15,106 INFO L93 Difference]: Finished difference Result 12976 states and 36210 transitions. [2021-06-05 03:03:15,106 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 62 states. [2021-06-05 03:03:15,106 INFO L78 Accepts]: Start accepts. Automaton has has 46 states, 45 states have (on average 3.977777777777778) internal successors, (179), 46 states have internal predecessors, (179), 0 states have call successors, (0), 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 102 [2021-06-05 03:03:15,106 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:03:15,126 INFO L225 Difference]: With dead ends: 12976 [2021-06-05 03:03:15,126 INFO L226 Difference]: Without dead ends: 12360 [2021-06-05 03:03:15,128 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 191 GetRequests, 84 SyntacticMatches, 5 SemanticMatches, 102 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2221 ImplicationChecksByTransitivity, 9211.2ms TimeCoverageRelationStatistics Valid=1962, Invalid=8750, Unknown=0, NotChecked=0, Total=10712 [2021-06-05 03:03:15,155 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12360 states. [2021-06-05 03:03:15,244 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12360 to 4163. [2021-06-05 03:03:15,251 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4163 states, 4162 states have (on average 2.7602114368092265) internal successors, (11488), 4162 states have internal predecessors, (11488), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:03:15,260 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4163 states to 4163 states and 11488 transitions. [2021-06-05 03:03:15,260 INFO L78 Accepts]: Start accepts. Automaton has 4163 states and 11488 transitions. Word has length 102 [2021-06-05 03:03:15,261 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:03:15,261 INFO L482 AbstractCegarLoop]: Abstraction has 4163 states and 11488 transitions. [2021-06-05 03:03:15,261 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 46 states, 45 states have (on average 3.977777777777778) internal successors, (179), 46 states have internal predecessors, (179), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:03:15,261 INFO L276 IsEmpty]: Start isEmpty. Operand 4163 states and 11488 transitions. [2021-06-05 03:03:15,268 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2021-06-05 03:03:15,268 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:03:15,268 INFO L521 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, 1] [2021-06-05 03:03:15,488 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2021-06-05 03:03:15,489 INFO L430 AbstractCegarLoop]: === Iteration 14 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-05 03:03:15,489 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:03:15,489 INFO L82 PathProgramCache]: Analyzing trace with hash 180698587, now seen corresponding path program 9 times [2021-06-05 03:03:15,489 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:03:15,489 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [424489736] [2021-06-05 03:03:15,490 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:03:15,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:03:15,851 WARN L205 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 40 [2021-06-05 03:03:16,944 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:03:16,945 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:03:16,945 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [424489736] [2021-06-05 03:03:16,945 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [424489736] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:03:16,945 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:03:16,945 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [27] imperfect sequences [] total 27 [2021-06-05 03:03:16,945 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1704408647] [2021-06-05 03:03:16,945 INFO L462 AbstractCegarLoop]: Interpolant automaton has 27 states [2021-06-05 03:03:16,945 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:03:16,946 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2021-06-05 03:03:16,946 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=56, Invalid=646, Unknown=0, NotChecked=0, Total=702 [2021-06-05 03:03:16,946 INFO L87 Difference]: Start difference. First operand 4163 states and 11488 transitions. Second operand has 27 states, 27 states have (on average 3.7777777777777777) internal successors, (102), 27 states have internal predecessors, (102), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:03:17,990 WARN L205 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 71 [2021-06-05 03:03:18,150 WARN L205 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 73 [2021-06-05 03:03:18,364 WARN L205 SmtUtils]: Spent 146.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 78 [2021-06-05 03:03:18,555 WARN L205 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 73 [2021-06-05 03:03:18,771 WARN L205 SmtUtils]: Spent 129.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 78 [2021-06-05 03:03:18,990 WARN L205 SmtUtils]: Spent 133.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 80 [2021-06-05 03:03:19,216 WARN L205 SmtUtils]: Spent 127.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 78 [2021-06-05 03:03:19,564 WARN L205 SmtUtils]: Spent 131.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 80 [2021-06-05 03:03:19,768 WARN L205 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 68 [2021-06-05 03:03:19,951 WARN L205 SmtUtils]: Spent 144.00 ms on a formula simplification. DAG size of input: 101 DAG size of output: 86 [2021-06-05 03:03:20,560 WARN L205 SmtUtils]: Spent 127.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 77 [2021-06-05 03:03:20,845 WARN L205 SmtUtils]: Spent 172.00 ms on a formula simplification. DAG size of input: 112 DAG size of output: 93 [2021-06-05 03:03:21,018 WARN L205 SmtUtils]: Spent 140.00 ms on a formula simplification. DAG size of input: 103 DAG size of output: 84 [2021-06-05 03:03:21,320 WARN L205 SmtUtils]: Spent 182.00 ms on a formula simplification. DAG size of input: 121 DAG size of output: 97 [2021-06-05 03:03:21,526 WARN L205 SmtUtils]: Spent 164.00 ms on a formula simplification. DAG size of input: 112 DAG size of output: 88 [2021-06-05 03:03:21,864 WARN L205 SmtUtils]: Spent 206.00 ms on a formula simplification. DAG size of input: 133 DAG size of output: 109 [2021-06-05 03:03:22,101 WARN L205 SmtUtils]: Spent 193.00 ms on a formula simplification. DAG size of input: 124 DAG size of output: 100 [2021-06-05 03:03:22,435 WARN L205 SmtUtils]: Spent 220.00 ms on a formula simplification. DAG size of input: 138 DAG size of output: 111 [2021-06-05 03:03:22,680 WARN L205 SmtUtils]: Spent 196.00 ms on a formula simplification. DAG size of input: 129 DAG size of output: 102 [2021-06-05 03:03:23,035 WARN L205 SmtUtils]: Spent 246.00 ms on a formula simplification. DAG size of input: 143 DAG size of output: 113 [2021-06-05 03:03:23,304 WARN L205 SmtUtils]: Spent 205.00 ms on a formula simplification. DAG size of input: 134 DAG size of output: 104 [2021-06-05 03:03:23,608 WARN L205 SmtUtils]: Spent 215.00 ms on a formula simplification. DAG size of input: 138 DAG size of output: 111 [2021-06-05 03:03:23,871 WARN L205 SmtUtils]: Spent 194.00 ms on a formula simplification. DAG size of input: 129 DAG size of output: 102 [2021-06-05 03:03:24,210 WARN L205 SmtUtils]: Spent 233.00 ms on a formula simplification. DAG size of input: 141 DAG size of output: 114 [2021-06-05 03:03:24,477 WARN L205 SmtUtils]: Spent 203.00 ms on a formula simplification. DAG size of input: 132 DAG size of output: 105 [2021-06-05 03:03:24,805 WARN L205 SmtUtils]: Spent 239.00 ms on a formula simplification. DAG size of input: 144 DAG size of output: 117 [2021-06-05 03:03:25,087 WARN L205 SmtUtils]: Spent 214.00 ms on a formula simplification. DAG size of input: 135 DAG size of output: 108 [2021-06-05 03:03:25,403 WARN L205 SmtUtils]: Spent 239.00 ms on a formula simplification. DAG size of input: 141 DAG size of output: 114 [2021-06-05 03:03:25,671 WARN L205 SmtUtils]: Spent 202.00 ms on a formula simplification. DAG size of input: 132 DAG size of output: 105 [2021-06-05 03:03:25,984 WARN L205 SmtUtils]: Spent 235.00 ms on a formula simplification. DAG size of input: 146 DAG size of output: 116 [2021-06-05 03:03:26,251 WARN L205 SmtUtils]: Spent 215.00 ms on a formula simplification. DAG size of input: 137 DAG size of output: 107 [2021-06-05 03:03:26,820 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:03:26,820 INFO L93 Difference]: Finished difference Result 17029 states and 48238 transitions. [2021-06-05 03:03:26,820 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 51 states. [2021-06-05 03:03:26,820 INFO L78 Accepts]: Start accepts. Automaton has has 27 states, 27 states have (on average 3.7777777777777777) internal successors, (102), 27 states have internal predecessors, (102), 0 states have call successors, (0), 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 102 [2021-06-05 03:03:26,821 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:03:26,842 INFO L225 Difference]: With dead ends: 17029 [2021-06-05 03:03:26,843 INFO L226 Difference]: Without dead ends: 17029 [2021-06-05 03:03:26,843 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 77 GetRequests, 3 SyntacticMatches, 3 SemanticMatches, 71 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 755 ImplicationChecksByTransitivity, 8972.3ms TimeCoverageRelationStatistics Valid=1403, Invalid=3853, Unknown=0, NotChecked=0, Total=5256 [2021-06-05 03:03:26,870 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17029 states. [2021-06-05 03:03:27,000 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17029 to 4598. [2021-06-05 03:03:27,007 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4598 states, 4597 states have (on average 2.7665869045029368) internal successors, (12718), 4597 states have internal predecessors, (12718), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:03:27,017 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4598 states to 4598 states and 12718 transitions. [2021-06-05 03:03:27,018 INFO L78 Accepts]: Start accepts. Automaton has 4598 states and 12718 transitions. Word has length 102 [2021-06-05 03:03:27,018 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:03:27,019 INFO L482 AbstractCegarLoop]: Abstraction has 4598 states and 12718 transitions. [2021-06-05 03:03:27,019 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 27 states, 27 states have (on average 3.7777777777777777) internal successors, (102), 27 states have internal predecessors, (102), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:03:27,019 INFO L276 IsEmpty]: Start isEmpty. Operand 4598 states and 12718 transitions. [2021-06-05 03:03:27,027 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2021-06-05 03:03:27,027 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:03:27,027 INFO L521 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, 1] [2021-06-05 03:03:27,027 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2021-06-05 03:03:27,027 INFO L430 AbstractCegarLoop]: === Iteration 15 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-05 03:03:27,028 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:03:27,028 INFO L82 PathProgramCache]: Analyzing trace with hash 1921056285, now seen corresponding path program 10 times [2021-06-05 03:03:27,028 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:03:27,028 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1108903525] [2021-06-05 03:03:27,028 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:03:27,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:03:28,064 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:03:28,064 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:03:28,064 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1108903525] [2021-06-05 03:03:28,065 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1108903525] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-05 03:03:28,065 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [110850062] [2021-06-05 03:03:28,065 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 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 [2021-06-05 03:03:28,134 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-06-05 03:03:28,134 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-06-05 03:03:28,136 INFO L263 TraceCheckSpWp]: Trace formula consists of 217 conjuncts, 42 conjunts are in the unsatisfiable core [2021-06-05 03:03:28,139 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-05 03:03:28,157 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 [2021-06-05 03:03:28,159 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-06-05 03:03:28,160 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-06-05 03:03:28,160 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-06-05 03:03:28,160 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:6, output treesize:5 [2021-06-05 03:03:28,294 INFO L354 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2021-06-05 03:03:28,294 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 [2021-06-05 03:03:28,296 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-06-05 03:03:28,303 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-06-05 03:03:28,305 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. [2021-06-05 03:03:28,305 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:26, output treesize:24 [2021-06-05 03:03:28,369 INFO L354 Elim1Store]: treesize reduction 8, result has 52.9 percent of original size [2021-06-05 03:03:28,369 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 16 treesize of output 18 [2021-06-05 03:03:28,371 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-06-05 03:03:28,378 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-06-05 03:03:28,392 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-06-05 03:03:28,392 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:29, output treesize:14 [2021-06-05 03:03:28,582 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 23 treesize of output 22 [2021-06-05 03:03:28,583 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-06-05 03:03:28,591 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-06-05 03:03:28,592 INFO L550 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-06-05 03:03:28,593 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 4 variables, input treesize:30, output treesize:15 [2021-06-05 03:03:28,883 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 23 treesize of output 7 [2021-06-05 03:03:28,884 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-06-05 03:03:28,885 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-06-05 03:03:28,886 INFO L550 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-06-05 03:03:28,886 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 4 variables, input treesize:23, output treesize:3 [2021-06-05 03:03:28,890 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:03:28,890 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [110850062] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-05 03:03:28,890 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-05 03:03:28,891 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [26, 18] total 41 [2021-06-05 03:03:28,891 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [444988169] [2021-06-05 03:03:28,891 INFO L462 AbstractCegarLoop]: Interpolant automaton has 42 states [2021-06-05 03:03:28,891 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:03:28,892 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 42 interpolants. [2021-06-05 03:03:28,892 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=121, Invalid=1601, Unknown=0, NotChecked=0, Total=1722 [2021-06-05 03:03:28,892 INFO L87 Difference]: Start difference. First operand 4598 states and 12718 transitions. Second operand has 42 states, 41 states have (on average 4.634146341463414) internal successors, (190), 42 states have internal predecessors, (190), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:03:30,609 WARN L205 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 69 [2021-06-05 03:03:30,880 WARN L205 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 76 [2021-06-05 03:03:31,160 WARN L205 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 79 [2021-06-05 03:03:31,406 WARN L205 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 72 [2021-06-05 03:03:31,635 WARN L205 SmtUtils]: Spent 126.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 74 [2021-06-05 03:03:31,936 WARN L205 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-06-05 03:03:32,453 WARN L205 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 74 [2021-06-05 03:03:32,854 WARN L205 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 77 [2021-06-05 03:03:32,987 WARN L205 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 74 [2021-06-05 03:03:33,394 WARN L205 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 78 [2021-06-05 03:03:33,581 WARN L205 SmtUtils]: Spent 128.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 78 [2021-06-05 03:03:33,728 WARN L205 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 79 [2021-06-05 03:03:34,246 WARN L205 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 74 [2021-06-05 03:03:34,948 WARN L205 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 78 [2021-06-05 03:03:35,427 WARN L205 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 79 [2021-06-05 03:03:35,686 WARN L205 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 59 [2021-06-05 03:03:37,916 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:03:37,916 INFO L93 Difference]: Finished difference Result 12651 states and 35450 transitions. [2021-06-05 03:03:37,916 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 83 states. [2021-06-05 03:03:37,916 INFO L78 Accepts]: Start accepts. Automaton has has 42 states, 41 states have (on average 4.634146341463414) internal successors, (190), 42 states have internal predecessors, (190), 0 states have call successors, (0), 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 102 [2021-06-05 03:03:37,916 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:03:37,916 INFO L225 Difference]: With dead ends: 12651 [2021-06-05 03:03:37,916 INFO L226 Difference]: Without dead ends: 0 [2021-06-05 03:03:37,917 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 209 GetRequests, 88 SyntacticMatches, 2 SemanticMatches, 119 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3118 ImplicationChecksByTransitivity, 8363.5ms TimeCoverageRelationStatistics Valid=2483, Invalid=12037, Unknown=0, NotChecked=0, Total=14520 [2021-06-05 03:03:37,918 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-06-05 03:03:37,918 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-06-05 03:03:37,918 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:03:37,918 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-06-05 03:03:37,918 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 102 [2021-06-05 03:03:37,918 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:03:37,918 INFO L482 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-06-05 03:03:37,918 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 42 states, 41 states have (on average 4.634146341463414) internal successors, (190), 42 states have internal predecessors, (190), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:03:37,918 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-06-05 03:03:37,918 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-06-05 03:03:38,120 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2021-06-05 03:03:38,122 INFO L246 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2021-06-05 03:03:38,127 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 05.06 03:03:38 BasicIcfg [2021-06-05 03:03:38,127 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-06-05 03:03:38,128 INFO L168 Benchmark]: Toolchain (without parser) took 142721.01 ms. Allocated memory was 354.4 MB in the beginning and 903.9 MB in the end (delta: 549.5 MB). Free memory was 316.3 MB in the beginning and 775.4 MB in the end (delta: -459.1 MB). Peak memory consumption was 92.1 MB. Max. memory is 16.0 GB. [2021-06-05 03:03:38,128 INFO L168 Benchmark]: CDTParser took 0.16 ms. Allocated memory is still 354.4 MB. Free memory was 335.1 MB in the beginning and 335.1 MB in the end (delta: 70.4 kB). There was no memory consumed. Max. memory is 16.0 GB. [2021-06-05 03:03:38,128 INFO L168 Benchmark]: CACSL2BoogieTranslator took 262.45 ms. Allocated memory is still 354.4 MB. Free memory was 316.2 MB in the beginning and 336.7 MB in the end (delta: -20.5 MB). Peak memory consumption was 7.1 MB. Max. memory is 16.0 GB. [2021-06-05 03:03:38,128 INFO L168 Benchmark]: Boogie Procedure Inliner took 47.78 ms. Allocated memory is still 354.4 MB. Free memory was 336.7 MB in the beginning and 334.6 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. [2021-06-05 03:03:38,128 INFO L168 Benchmark]: Boogie Preprocessor took 39.09 ms. Allocated memory is still 354.4 MB. Free memory was 334.6 MB in the beginning and 333.6 MB in the end (delta: 1.0 MB). There was no memory consumed. Max. memory is 16.0 GB. [2021-06-05 03:03:38,129 INFO L168 Benchmark]: RCFGBuilder took 555.42 ms. Allocated memory is still 354.4 MB. Free memory was 333.6 MB in the beginning and 306.3 MB in the end (delta: 27.3 MB). Peak memory consumption was 27.3 MB. Max. memory is 16.0 GB. [2021-06-05 03:03:38,129 INFO L168 Benchmark]: TraceAbstraction took 141810.03 ms. Allocated memory was 354.4 MB in the beginning and 903.9 MB in the end (delta: 549.5 MB). Free memory was 305.2 MB in the beginning and 775.4 MB in the end (delta: -470.2 MB). Peak memory consumption was 79.1 MB. Max. memory is 16.0 GB. [2021-06-05 03:03:38,129 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16 ms. Allocated memory is still 354.4 MB. Free memory was 335.1 MB in the beginning and 335.1 MB in the end (delta: 70.4 kB). There was no memory consumed. Max. memory is 16.0 GB. * CACSL2BoogieTranslator took 262.45 ms. Allocated memory is still 354.4 MB. Free memory was 316.2 MB in the beginning and 336.7 MB in the end (delta: -20.5 MB). Peak memory consumption was 7.1 MB. Max. memory is 16.0 GB. * Boogie Procedure Inliner took 47.78 ms. Allocated memory is still 354.4 MB. Free memory was 336.7 MB in the beginning and 334.6 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. * Boogie Preprocessor took 39.09 ms. Allocated memory is still 354.4 MB. Free memory was 334.6 MB in the beginning and 333.6 MB in the end (delta: 1.0 MB). There was no memory consumed. Max. memory is 16.0 GB. * RCFGBuilder took 555.42 ms. Allocated memory is still 354.4 MB. Free memory was 333.6 MB in the beginning and 306.3 MB in the end (delta: 27.3 MB). Peak memory consumption was 27.3 MB. Max. memory is 16.0 GB. * TraceAbstraction took 141810.03 ms. Allocated memory was 354.4 MB in the beginning and 903.9 MB in the end (delta: 549.5 MB). Free memory was 305.2 MB in the beginning and 775.4 MB in the end (delta: -470.2 MB). Peak memory consumption was 79.1 MB. Max. memory is 16.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 67]: assertion always holds For all program executions holds that assertion always holds at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 4 procedures, 159 locations, 3 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 141623.4ms, OverallIterations: 15, TraceHistogramMax: 1, EmptinessCheckTime: 157.4ms, AutomataDifference: 121665.1ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 136.0ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 5252 SDtfs, 22337 SDslu, 60873 SDs, 0 SdLazy, 32548 SolverSat, 904 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 18720.1ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 1241 GetRequests, 306 SyntacticMatches, 24 SemanticMatches, 911 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14732 ImplicationChecksByTransitivity, 109407.8ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=4598occurred in iteration=14, InterpolantAutomatonStates: 652, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: 1767.0ms AutomataMinimizationTime, 15 MinimizatonAttempts, 78269 StatesRemovedByMinimization, 11 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 121.9ms SsaConstructionTime, 593.1ms SatisfiabilityAnalysisTime, 16193.6ms InterpolantComputationTime, 1809 NumberOfCodeBlocks, 1800 NumberOfCodeBlocksAsserted, 19 NumberOfCheckSat, 1791 ConstructedInterpolants, 43 QuantifiedInterpolants, 28889 SizeOfPredicates, 80 NumberOfNonLiveVariables, 683 ConjunctsInSsa, 147 ConjunctsInUnsatCore, 18 InterpolantComputations, 12 PerfectInterpolantSequences, 9/15 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 - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! Received shutdown request...