/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-NoLbe.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/weaver/popl20-bad-ring.wvr.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-wip.dk.mcr-reduction-c7b2d19 [2022-03-15 14:06:03,421 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-03-15 14:06:03,423 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-03-15 14:06:03,475 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2022-03-15 14:06:03,496 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-03-15 14:06:03,497 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-03-15 14:06:03,497 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-03-15 14:06:03,498 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 [2022-03-15 14:06:03,517 INFO L113 SettingsManager]: Loading preferences was successful [2022-03-15 14:06:03,518 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-03-15 14:06:03,518 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-03-15 14:06:03,518 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-03-15 14:06:03,518 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-03-15 14:06:03,519 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-03-15 14:06:03,519 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-03-15 14:06:03,519 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-03-15 14:06:03,519 INFO L138 SettingsManager]: * Use SBE=true [2022-03-15 14:06:03,519 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-03-15 14:06:03,519 INFO L138 SettingsManager]: * sizeof long=4 [2022-03-15 14:06:03,519 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-03-15 14:06:03,519 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-03-15 14:06:03,520 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-03-15 14:06:03,520 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-03-15 14:06:03,520 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-03-15 14:06:03,520 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-03-15 14:06:03,520 INFO L138 SettingsManager]: * sizeof long double=12 [2022-03-15 14:06:03,520 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-03-15 14:06:03,520 INFO L138 SettingsManager]: * Use constant arrays=true [2022-03-15 14:06:03,520 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-03-15 14:06:03,520 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-03-15 14:06:03,520 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-03-15 14:06:03,520 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-03-15 14:06:03,520 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-03-15 14:06:03,520 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-03-15 14:06:03,521 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-03-15 14:06:03,521 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-03-15 14:06:03,521 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-03-15 14:06:03,521 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-03-15 14:06:03,521 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-03-15 14:06:03,521 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-03-15 14:06:03,521 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-03-15 14:06:03,521 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-03-15 14:06:03,684 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-03-15 14:06:03,699 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-03-15 14:06:03,701 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-03-15 14:06:03,701 INFO L271 PluginConnector]: Initializing CDTParser... [2022-03-15 14:06:03,702 INFO L275 PluginConnector]: CDTParser initialized [2022-03-15 14:06:03,703 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/weaver/popl20-bad-ring.wvr.c [2022-03-15 14:06:03,762 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6e7830d9d/14eefb60ae3a4196a90e47980da0e65f/FLAG49fd404df [2022-03-15 14:06:04,046 INFO L306 CDTParser]: Found 1 translation units. [2022-03-15 14:06:04,047 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/weaver/popl20-bad-ring.wvr.c [2022-03-15 14:06:04,051 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6e7830d9d/14eefb60ae3a4196a90e47980da0e65f/FLAG49fd404df [2022-03-15 14:06:04,479 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6e7830d9d/14eefb60ae3a4196a90e47980da0e65f [2022-03-15 14:06:04,481 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-03-15 14:06:04,482 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-03-15 14:06:04,500 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-03-15 14:06:04,500 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-03-15 14:06:04,502 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-03-15 14:06:04,503 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.03 02:06:04" (1/1) ... [2022-03-15 14:06:04,505 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@458cb607 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.03 02:06:04, skipping insertion in model container [2022-03-15 14:06:04,505 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.03 02:06:04" (1/1) ... [2022-03-15 14:06:04,509 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-03-15 14:06:04,535 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-03-15 14:06:04,674 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/weaver/popl20-bad-ring.wvr.c[3947,3960] [2022-03-15 14:06:04,679 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-03-15 14:06:04,685 INFO L203 MainTranslator]: Completed pre-run [2022-03-15 14:06:04,703 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/weaver/popl20-bad-ring.wvr.c[3947,3960] [2022-03-15 14:06:04,705 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-03-15 14:06:04,715 INFO L208 MainTranslator]: Completed translation [2022-03-15 14:06:04,716 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.03 02:06:04 WrapperNode [2022-03-15 14:06:04,716 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-03-15 14:06:04,717 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-03-15 14:06:04,717 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-03-15 14:06:04,717 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-03-15 14:06:04,722 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.03 02:06:04" (1/1) ... [2022-03-15 14:06:04,728 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.03 02:06:04" (1/1) ... [2022-03-15 14:06:04,746 INFO L137 Inliner]: procedures = 25, calls = 61, calls flagged for inlining = 16, calls inlined = 20, statements flattened = 315 [2022-03-15 14:06:04,746 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-03-15 14:06:04,747 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-03-15 14:06:04,747 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-03-15 14:06:04,747 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-03-15 14:06:04,752 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.03 02:06:04" (1/1) ... [2022-03-15 14:06:04,753 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.03 02:06:04" (1/1) ... [2022-03-15 14:06:04,758 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.03 02:06:04" (1/1) ... [2022-03-15 14:06:04,758 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.03 02:06:04" (1/1) ... [2022-03-15 14:06:04,779 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.03 02:06:04" (1/1) ... [2022-03-15 14:06:04,783 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.03 02:06:04" (1/1) ... [2022-03-15 14:06:04,785 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.03 02:06:04" (1/1) ... [2022-03-15 14:06:04,787 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-03-15 14:06:04,788 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-03-15 14:06:04,788 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-03-15 14:06:04,788 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-03-15 14:06:04,791 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.03 02:06:04" (1/1) ... [2022-03-15 14:06:04,803 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-03-15 14:06:04,813 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-15 14:06:04,825 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-03-15 14:06:04,832 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-03-15 14:06:04,855 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-03-15 14:06:04,855 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-03-15 14:06:04,855 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-03-15 14:06:04,855 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-03-15 14:06:04,855 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2022-03-15 14:06:04,855 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2022-03-15 14:06:04,855 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2022-03-15 14:06:04,855 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2022-03-15 14:06:04,856 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2022-03-15 14:06:04,856 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2022-03-15 14:06:04,856 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-03-15 14:06:04,856 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-03-15 14:06:04,856 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-03-15 14:06:04,856 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-03-15 14:06:04,856 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-03-15 14:06:04,856 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-03-15 14:06:04,856 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-03-15 14:06:04,857 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-03-15 14:06:04,968 INFO L234 CfgBuilder]: Building ICFG [2022-03-15 14:06:04,969 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-03-15 14:06:05,280 INFO L275 CfgBuilder]: Performing block encoding [2022-03-15 14:06:05,456 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-03-15 14:06:05,456 INFO L299 CfgBuilder]: Removed 6 assume(true) statements. [2022-03-15 14:06:05,458 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.03 02:06:05 BoogieIcfgContainer [2022-03-15 14:06:05,458 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-03-15 14:06:05,459 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-03-15 14:06:05,459 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-03-15 14:06:05,461 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-03-15 14:06:05,461 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.03 02:06:04" (1/3) ... [2022-03-15 14:06:05,462 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1c7d179b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.03 02:06:05, skipping insertion in model container [2022-03-15 14:06:05,462 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.03 02:06:04" (2/3) ... [2022-03-15 14:06:05,462 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1c7d179b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.03 02:06:05, skipping insertion in model container [2022-03-15 14:06:05,462 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.03 02:06:05" (3/3) ... [2022-03-15 14:06:05,463 INFO L111 eAbstractionObserver]: Analyzing ICFG popl20-bad-ring.wvr.c [2022-03-15 14:06:05,467 WARN L150 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-03-15 14:06:05,467 INFO L205 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-03-15 14:06:05,467 INFO L164 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-03-15 14:06:05,467 INFO L534 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-03-15 14:06:05,509 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_~i~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 14:06:05,509 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_~i~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 14:06:05,510 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_~l~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 14:06:05,510 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_~l~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 14:06:05,510 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_~i~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 14:06:05,510 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_~i~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 14:06:05,510 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_~i~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 14:06:05,511 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_~i~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 14:06:05,511 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~mem7#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 14:06:05,511 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 14:06:05,511 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~mem7#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 14:06:05,511 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 14:06:05,511 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~post9#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 14:06:05,511 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~short8#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 14:06:05,515 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~mem7#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 14:06:05,516 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 14:06:05,516 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~mem7#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 14:06:05,516 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 14:06:05,516 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~post9#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 14:06:05,516 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~short8#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 14:06:05,517 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~mem1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 14:06:05,517 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 14:06:05,517 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~short2#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 14:06:05,517 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~post3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 14:06:05,517 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 14:06:05,517 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~mem1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 14:06:05,518 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~mem1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 14:06:05,518 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 14:06:05,518 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~short2#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 14:06:05,518 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~post3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 14:06:05,519 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 14:06:05,519 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~mem1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 14:06:05,519 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 14:06:05,519 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 14:06:05,519 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 14:06:05,520 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 14:06:05,520 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_~l~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 14:06:05,520 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 14:06:05,520 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~mem4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 14:06:05,520 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~post5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 14:06:05,520 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 14:06:05,520 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_~l~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 14:06:05,521 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 14:06:05,521 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~mem4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 14:06:05,521 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~post5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 14:06:05,521 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 14:06:05,521 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_~l~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 14:06:05,521 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_~l~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 14:06:05,521 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_~i~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 14:06:05,522 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~post6#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 14:06:05,522 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_~i~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 14:06:05,522 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~post6#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 14:06:05,522 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~post6#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 14:06:05,522 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_~i~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 14:06:05,522 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~post6#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 14:06:05,522 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_~i~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 14:06:05,522 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~post6#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 14:06:05,523 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~post6#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 14:06:05,524 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_~s~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 14:06:05,524 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_~s~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 14:06:05,524 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_~j~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 14:06:05,524 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_~j~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 14:06:05,525 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 14:06:05,525 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 14:06:05,525 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 14:06:05,525 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 14:06:05,525 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~mem10#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 14:06:05,525 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 14:06:05,525 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_~j~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 14:06:05,525 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~post11#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 14:06:05,525 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 14:06:05,526 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~mem10#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 14:06:05,526 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 14:06:05,526 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_~j~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 14:06:05,526 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~post11#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 14:06:05,526 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 14:06:05,527 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~mem12#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 14:06:05,527 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_~j~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 14:06:05,527 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 14:06:05,527 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~short13#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 14:06:05,527 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~mem12#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 14:06:05,527 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~post14#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 14:06:05,527 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 14:06:05,529 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~mem12#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 14:06:05,529 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_~j~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 14:06:05,530 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 14:06:05,530 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~short13#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 14:06:05,533 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~mem12#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 14:06:05,534 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~post14#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 14:06:05,534 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 14:06:05,537 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_~j~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 14:06:05,537 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_~s~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 14:06:05,537 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_~s~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 14:06:05,537 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_~j~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 14:06:05,537 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_~s~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 14:06:05,537 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_~s~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 14:06:05,538 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_~j~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 14:06:05,538 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_~j~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 14:06:05,538 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_~j~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 14:06:05,538 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_~j~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 14:06:05,538 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_~t~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 14:06:05,538 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_~t~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 14:06:05,538 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_~k~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 14:06:05,539 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_~k~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 14:06:05,539 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 14:06:05,539 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 14:06:05,539 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 14:06:05,539 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 14:06:05,539 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~mem15#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 14:06:05,539 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 14:06:05,539 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_~k~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 14:06:05,539 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~post16#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 14:06:05,539 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 14:06:05,539 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~mem15#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 14:06:05,540 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 14:06:05,540 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_~k~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 14:06:05,540 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~post16#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 14:06:05,540 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 14:06:05,540 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~mem17#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 14:06:05,540 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_~k~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 14:06:05,540 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~post19#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 14:06:05,540 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~mem17#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 14:06:05,540 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 14:06:05,540 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~short18#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 14:06:05,540 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 14:06:05,546 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~mem17#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 14:06:05,547 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_~k~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 14:06:05,547 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~post19#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 14:06:05,547 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~mem17#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 14:06:05,547 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 14:06:05,547 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~short18#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 14:06:05,547 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 14:06:05,548 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_~k~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 14:06:05,548 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_~t~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 14:06:05,548 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_~t~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 14:06:05,548 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_~k~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 14:06:05,548 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_~t~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 14:06:05,548 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_~t~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 14:06:05,548 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_~k~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 14:06:05,549 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_~k~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 14:06:05,549 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_~k~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 14:06:05,549 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_~k~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 14:06:05,551 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~short13#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 14:06:05,551 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~post11#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 14:06:05,551 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 14:06:05,551 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_~j~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 14:06:05,551 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 14:06:05,551 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_~s~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 14:06:05,552 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~mem12#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 14:06:05,552 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 14:06:05,552 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~mem10#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 14:06:05,552 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~post14#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 14:06:05,552 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 14:06:05,552 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 14:06:05,552 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 14:06:05,553 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 14:06:05,553 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 14:06:05,553 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~short18#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 14:06:05,553 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~post16#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 14:06:05,553 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_~k~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 14:06:05,553 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~mem17#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 14:06:05,553 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~mem15#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 14:06:05,553 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~post19#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 14:06:05,553 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_~t~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 14:06:05,554 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~mem4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 14:06:05,554 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~short2#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 14:06:05,554 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~post5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 14:06:05,554 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~short8#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 14:06:05,554 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_~l~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 14:06:05,555 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~post3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 14:06:05,555 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_~i~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 14:06:05,555 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 14:06:05,555 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~post6#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 14:06:05,555 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~mem7#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 14:06:05,555 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 14:06:05,555 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~post9#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 14:06:05,555 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 14:06:05,555 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 14:06:05,555 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~mem1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 14:06:05,557 INFO L148 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2022-03-15 14:06:05,612 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-03-15 14:06:05,616 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mLazyFiniteAutomaton=false, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR, mMcrOptimizeForkJoin=true, mMcrOverapproximateWrwc=true [2022-03-15 14:06:05,616 INFO L340 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2022-03-15 14:06:05,626 INFO L111 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 255 places, 267 transitions, 558 flow [2022-03-15 14:06:05,896 INFO L133 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 7033 states, 7032 states have (on average 3.9591865756541527) internal successors, (27841), 7032 states have internal predecessors, (27841), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 14:06:05,928 INFO L276 IsEmpty]: Start isEmpty. Operand has 7033 states, 7032 states have (on average 3.9591865756541527) internal successors, (27841), 7032 states have internal predecessors, (27841), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 14:06:05,983 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 192 [2022-03-15 14:06:05,983 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 14:06:05,984 INFO L514 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 14:06:05,985 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-03-15 14:06:05,989 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 14:06:05,989 INFO L85 PathProgramCache]: Analyzing trace with hash 64630819, now seen corresponding path program 1 times [2022-03-15 14:06:05,995 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 14:06:05,995 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1977965115] [2022-03-15 14:06:05,996 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 14:06:05,997 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 14:06:06,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 14:06:06,254 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 14:06:06,255 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 14:06:06,255 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1977965115] [2022-03-15 14:06:06,255 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1977965115] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 14:06:06,255 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 14:06:06,256 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-03-15 14:06:06,257 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2055968896] [2022-03-15 14:06:06,257 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 14:06:06,260 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-03-15 14:06:06,260 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 14:06:06,285 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-03-15 14:06:06,285 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-03-15 14:06:06,304 INFO L87 Difference]: Start difference. First operand has 7033 states, 7032 states have (on average 3.9591865756541527) internal successors, (27841), 7032 states have internal predecessors, (27841), 0 states have call successors, (0), 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 95.5) internal successors, (191), 2 states have internal predecessors, (191), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 14:06:06,458 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 14:06:06,458 INFO L93 Difference]: Finished difference Result 7033 states and 24830 transitions. [2022-03-15 14:06:06,467 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-03-15 14:06:06,469 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 95.5) internal successors, (191), 2 states have internal predecessors, (191), 0 states have call successors, (0), 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 191 [2022-03-15 14:06:06,471 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 14:06:06,534 INFO L225 Difference]: With dead ends: 7033 [2022-03-15 14:06:06,537 INFO L226 Difference]: Without dead ends: 7025 [2022-03-15 14:06:06,538 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-03-15 14:06:06,542 INFO L933 BasicCegarLoop]: 224 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 224 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-03-15 14:06:06,543 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 224 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-03-15 14:06:06,572 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7025 states. [2022-03-15 14:06:06,774 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7025 to 7025. [2022-03-15 14:06:06,793 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7025 states, 7024 states have (on average 3.533883826879271) internal successors, (24822), 7024 states have internal predecessors, (24822), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 14:06:06,821 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7025 states to 7025 states and 24822 transitions. [2022-03-15 14:06:06,822 INFO L78 Accepts]: Start accepts. Automaton has 7025 states and 24822 transitions. Word has length 191 [2022-03-15 14:06:06,823 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 14:06:06,823 INFO L470 AbstractCegarLoop]: Abstraction has 7025 states and 24822 transitions. [2022-03-15 14:06:06,823 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 95.5) internal successors, (191), 2 states have internal predecessors, (191), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 14:06:06,823 INFO L276 IsEmpty]: Start isEmpty. Operand 7025 states and 24822 transitions. [2022-03-15 14:06:06,841 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 200 [2022-03-15 14:06:06,842 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 14:06:06,842 INFO L514 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 14:06:06,842 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-03-15 14:06:06,842 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-03-15 14:06:06,843 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 14:06:06,843 INFO L85 PathProgramCache]: Analyzing trace with hash 1257954073, now seen corresponding path program 1 times [2022-03-15 14:06:06,843 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 14:06:06,843 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1483092018] [2022-03-15 14:06:06,843 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 14:06:06,844 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 14:06:06,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 14:06:07,078 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 14:06:07,078 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 14:06:07,078 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1483092018] [2022-03-15 14:06:07,078 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1483092018] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 14:06:07,078 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 14:06:07,078 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-03-15 14:06:07,078 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1130249184] [2022-03-15 14:06:07,079 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 14:06:07,080 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-03-15 14:06:07,080 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 14:06:07,080 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-03-15 14:06:07,080 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-03-15 14:06:07,081 INFO L87 Difference]: Start difference. First operand 7025 states and 24822 transitions. Second operand has 6 states, 6 states have (on average 33.166666666666664) internal successors, (199), 6 states have internal predecessors, (199), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 14:06:07,356 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 14:06:07,357 INFO L93 Difference]: Finished difference Result 9883 states and 34057 transitions. [2022-03-15 14:06:07,357 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-03-15 14:06:07,358 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 33.166666666666664) internal successors, (199), 6 states have internal predecessors, (199), 0 states have call successors, (0), 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 199 [2022-03-15 14:06:07,360 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 14:06:07,414 INFO L225 Difference]: With dead ends: 9883 [2022-03-15 14:06:07,415 INFO L226 Difference]: Without dead ends: 7031 [2022-03-15 14:06:07,416 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=28, Invalid=44, Unknown=0, NotChecked=0, Total=72 [2022-03-15 14:06:07,417 INFO L933 BasicCegarLoop]: 208 mSDtfsCounter, 392 mSDsluCounter, 589 mSDsCounter, 0 mSdLazyCounter, 116 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 392 SdHoareTripleChecker+Valid, 775 SdHoareTripleChecker+Invalid, 118 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 116 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 14:06:07,418 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [392 Valid, 775 Invalid, 118 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 116 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 14:06:07,435 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7031 states. [2022-03-15 14:06:07,598 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7031 to 7026. [2022-03-15 14:06:07,614 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7026 states, 7025 states have (on average 3.533523131672598) internal successors, (24823), 7025 states have internal predecessors, (24823), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 14:06:07,706 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7026 states to 7026 states and 24823 transitions. [2022-03-15 14:06:07,706 INFO L78 Accepts]: Start accepts. Automaton has 7026 states and 24823 transitions. Word has length 199 [2022-03-15 14:06:07,707 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 14:06:07,708 INFO L470 AbstractCegarLoop]: Abstraction has 7026 states and 24823 transitions. [2022-03-15 14:06:07,708 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 33.166666666666664) internal successors, (199), 6 states have internal predecessors, (199), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 14:06:07,708 INFO L276 IsEmpty]: Start isEmpty. Operand 7026 states and 24823 transitions. [2022-03-15 14:06:07,731 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 207 [2022-03-15 14:06:07,731 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 14:06:07,731 INFO L514 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 14:06:07,732 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-03-15 14:06:07,732 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-03-15 14:06:07,732 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 14:06:07,732 INFO L85 PathProgramCache]: Analyzing trace with hash 1530199539, now seen corresponding path program 1 times [2022-03-15 14:06:07,732 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 14:06:07,733 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [781247815] [2022-03-15 14:06:07,733 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 14:06:07,733 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 14:06:07,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 14:06:07,946 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-03-15 14:06:07,947 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 14:06:07,947 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [781247815] [2022-03-15 14:06:07,947 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [781247815] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 14:06:07,947 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 14:06:07,947 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-15 14:06:07,948 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1014076722] [2022-03-15 14:06:07,948 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 14:06:07,948 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-03-15 14:06:07,949 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 14:06:07,949 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-03-15 14:06:07,949 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-03-15 14:06:07,949 INFO L87 Difference]: Start difference. First operand 7026 states and 24823 transitions. Second operand has 7 states, 7 states have (on average 29.428571428571427) internal successors, (206), 7 states have internal predecessors, (206), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 14:06:08,100 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 14:06:08,100 INFO L93 Difference]: Finished difference Result 9029 states and 30546 transitions. [2022-03-15 14:06:08,101 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-15 14:06:08,101 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 29.428571428571427) internal successors, (206), 7 states have internal predecessors, (206), 0 states have call successors, (0), 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 206 [2022-03-15 14:06:08,102 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 14:06:08,126 INFO L225 Difference]: With dead ends: 9029 [2022-03-15 14:06:08,126 INFO L226 Difference]: Without dead ends: 7284 [2022-03-15 14:06:08,130 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110 [2022-03-15 14:06:08,132 INFO L933 BasicCegarLoop]: 208 mSDtfsCounter, 269 mSDsluCounter, 616 mSDsCounter, 0 mSdLazyCounter, 111 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 269 SdHoareTripleChecker+Valid, 785 SdHoareTripleChecker+Invalid, 117 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 111 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 14:06:08,133 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [269 Valid, 785 Invalid, 117 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 111 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 14:06:08,147 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7284 states. [2022-03-15 14:06:08,310 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7284 to 7279. [2022-03-15 14:06:08,324 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7279 states, 7278 states have (on average 3.4741687276724376) internal successors, (25285), 7278 states have internal predecessors, (25285), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 14:06:08,347 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7279 states to 7279 states and 25285 transitions. [2022-03-15 14:06:08,347 INFO L78 Accepts]: Start accepts. Automaton has 7279 states and 25285 transitions. Word has length 206 [2022-03-15 14:06:08,347 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 14:06:08,347 INFO L470 AbstractCegarLoop]: Abstraction has 7279 states and 25285 transitions. [2022-03-15 14:06:08,348 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 29.428571428571427) internal successors, (206), 7 states have internal predecessors, (206), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 14:06:08,348 INFO L276 IsEmpty]: Start isEmpty. Operand 7279 states and 25285 transitions. [2022-03-15 14:06:08,366 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 214 [2022-03-15 14:06:08,366 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 14:06:08,366 INFO L514 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 14:06:08,366 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-03-15 14:06:08,367 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-03-15 14:06:08,367 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 14:06:08,367 INFO L85 PathProgramCache]: Analyzing trace with hash 1262822431, now seen corresponding path program 1 times [2022-03-15 14:06:08,367 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 14:06:08,367 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [326654808] [2022-03-15 14:06:08,367 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 14:06:08,367 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 14:06:08,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 14:06:08,577 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-03-15 14:06:08,578 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 14:06:08,578 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [326654808] [2022-03-15 14:06:08,578 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [326654808] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 14:06:08,578 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 14:06:08,578 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-15 14:06:08,578 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [97699787] [2022-03-15 14:06:08,578 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 14:06:08,579 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-15 14:06:08,579 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 14:06:08,579 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-15 14:06:08,579 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-15 14:06:08,579 INFO L87 Difference]: Start difference. First operand 7279 states and 25285 transitions. Second operand has 5 states, 5 states have (on average 42.6) internal successors, (213), 5 states have internal predecessors, (213), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 14:06:08,710 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 14:06:08,711 INFO L93 Difference]: Finished difference Result 11487 states and 40044 transitions. [2022-03-15 14:06:08,711 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-15 14:06:08,712 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 42.6) internal successors, (213), 5 states have internal predecessors, (213), 0 states have call successors, (0), 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 213 [2022-03-15 14:06:08,712 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 14:06:08,742 INFO L225 Difference]: With dead ends: 11487 [2022-03-15 14:06:08,742 INFO L226 Difference]: Without dead ends: 9215 [2022-03-15 14:06:08,742 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-03-15 14:06:08,748 INFO L933 BasicCegarLoop]: 213 mSDtfsCounter, 157 mSDsluCounter, 492 mSDsCounter, 0 mSdLazyCounter, 99 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 157 SdHoareTripleChecker+Valid, 667 SdHoareTripleChecker+Invalid, 100 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 99 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 14:06:08,749 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [157 Valid, 667 Invalid, 100 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 99 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 14:06:08,767 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9215 states. [2022-03-15 14:06:08,966 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9215 to 7763. [2022-03-15 14:06:08,978 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7763 states, 7762 states have (on average 3.479902087090956) internal successors, (27011), 7762 states have internal predecessors, (27011), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 14:06:09,009 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7763 states to 7763 states and 27011 transitions. [2022-03-15 14:06:09,009 INFO L78 Accepts]: Start accepts. Automaton has 7763 states and 27011 transitions. Word has length 213 [2022-03-15 14:06:09,010 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 14:06:09,010 INFO L470 AbstractCegarLoop]: Abstraction has 7763 states and 27011 transitions. [2022-03-15 14:06:09,011 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 42.6) internal successors, (213), 5 states have internal predecessors, (213), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 14:06:09,011 INFO L276 IsEmpty]: Start isEmpty. Operand 7763 states and 27011 transitions. [2022-03-15 14:06:09,036 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 221 [2022-03-15 14:06:09,036 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 14:06:09,036 INFO L514 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 14:06:09,036 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-03-15 14:06:09,037 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-03-15 14:06:09,038 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 14:06:09,038 INFO L85 PathProgramCache]: Analyzing trace with hash -237404023, now seen corresponding path program 1 times [2022-03-15 14:06:09,038 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 14:06:09,038 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [912489017] [2022-03-15 14:06:09,038 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 14:06:09,039 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 14:06:09,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 14:06:09,161 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-03-15 14:06:09,161 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 14:06:09,161 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [912489017] [2022-03-15 14:06:09,161 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [912489017] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 14:06:09,161 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 14:06:09,161 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-03-15 14:06:09,161 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [179942638] [2022-03-15 14:06:09,162 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 14:06:09,162 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-03-15 14:06:09,162 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 14:06:09,163 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-03-15 14:06:09,163 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-03-15 14:06:09,163 INFO L87 Difference]: Start difference. First operand 7763 states and 27011 transitions. Second operand has 3 states, 3 states have (on average 73.33333333333333) internal successors, (220), 3 states have internal predecessors, (220), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 14:06:09,223 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 14:06:09,223 INFO L93 Difference]: Finished difference Result 6173 states and 21632 transitions. [2022-03-15 14:06:09,224 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-03-15 14:06:09,224 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 73.33333333333333) internal successors, (220), 3 states have internal predecessors, (220), 0 states have call successors, (0), 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 220 [2022-03-15 14:06:09,224 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 14:06:09,245 INFO L225 Difference]: With dead ends: 6173 [2022-03-15 14:06:09,246 INFO L226 Difference]: Without dead ends: 6173 [2022-03-15 14:06:09,246 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-03-15 14:06:09,246 INFO L933 BasicCegarLoop]: 216 mSDtfsCounter, 47 mSDsluCounter, 173 mSDsCounter, 0 mSdLazyCounter, 27 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 47 SdHoareTripleChecker+Valid, 381 SdHoareTripleChecker+Invalid, 29 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 27 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-03-15 14:06:09,247 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [47 Valid, 381 Invalid, 29 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 27 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-03-15 14:06:09,260 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6173 states. [2022-03-15 14:06:09,420 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6173 to 6173. [2022-03-15 14:06:09,428 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6173 states, 6172 states have (on average 3.5048606610499027) internal successors, (21632), 6172 states have internal predecessors, (21632), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 14:06:09,445 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6173 states to 6173 states and 21632 transitions. [2022-03-15 14:06:09,445 INFO L78 Accepts]: Start accepts. Automaton has 6173 states and 21632 transitions. Word has length 220 [2022-03-15 14:06:09,446 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 14:06:09,446 INFO L470 AbstractCegarLoop]: Abstraction has 6173 states and 21632 transitions. [2022-03-15 14:06:09,446 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 73.33333333333333) internal successors, (220), 3 states have internal predecessors, (220), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 14:06:09,446 INFO L276 IsEmpty]: Start isEmpty. Operand 6173 states and 21632 transitions. [2022-03-15 14:06:09,460 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 221 [2022-03-15 14:06:09,460 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 14:06:09,460 INFO L514 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 14:06:09,461 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-03-15 14:06:09,461 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-03-15 14:06:09,461 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 14:06:09,461 INFO L85 PathProgramCache]: Analyzing trace with hash -974156201, now seen corresponding path program 2 times [2022-03-15 14:06:09,461 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 14:06:09,461 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [943904343] [2022-03-15 14:06:09,462 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 14:06:09,462 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 14:06:09,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 14:06:09,617 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-03-15 14:06:09,618 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 14:06:09,618 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [943904343] [2022-03-15 14:06:09,618 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [943904343] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 14:06:09,618 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 14:06:09,618 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-03-15 14:06:09,618 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1904888574] [2022-03-15 14:06:09,618 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 14:06:09,618 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-03-15 14:06:09,619 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 14:06:09,619 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-03-15 14:06:09,619 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-03-15 14:06:09,619 INFO L87 Difference]: Start difference. First operand 6173 states and 21632 transitions. Second operand has 6 states, 6 states have (on average 36.666666666666664) internal successors, (220), 6 states have internal predecessors, (220), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 14:06:09,745 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 14:06:09,745 INFO L93 Difference]: Finished difference Result 6744 states and 23072 transitions. [2022-03-15 14:06:09,745 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 14:06:09,746 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 36.666666666666664) internal successors, (220), 6 states have internal predecessors, (220), 0 states have call successors, (0), 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 220 [2022-03-15 14:06:09,746 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 14:06:09,766 INFO L225 Difference]: With dead ends: 6744 [2022-03-15 14:06:09,766 INFO L226 Difference]: Without dead ends: 6179 [2022-03-15 14:06:09,766 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2022-03-15 14:06:09,768 INFO L933 BasicCegarLoop]: 208 mSDtfsCounter, 113 mSDsluCounter, 586 mSDsCounter, 0 mSdLazyCounter, 103 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 113 SdHoareTripleChecker+Valid, 764 SdHoareTripleChecker+Invalid, 105 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 103 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 14:06:09,768 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [113 Valid, 764 Invalid, 105 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 103 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 14:06:09,778 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6179 states. [2022-03-15 14:06:09,888 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6179 to 6174. [2022-03-15 14:06:09,899 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6174 states, 6173 states have (on average 3.5044548841730117) internal successors, (21633), 6173 states have internal predecessors, (21633), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 14:06:09,919 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6174 states to 6174 states and 21633 transitions. [2022-03-15 14:06:09,919 INFO L78 Accepts]: Start accepts. Automaton has 6174 states and 21633 transitions. Word has length 220 [2022-03-15 14:06:09,919 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 14:06:09,919 INFO L470 AbstractCegarLoop]: Abstraction has 6174 states and 21633 transitions. [2022-03-15 14:06:09,919 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 36.666666666666664) internal successors, (220), 6 states have internal predecessors, (220), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 14:06:09,920 INFO L276 IsEmpty]: Start isEmpty. Operand 6174 states and 21633 transitions. [2022-03-15 14:06:09,935 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 228 [2022-03-15 14:06:09,935 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 14:06:09,935 INFO L514 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 14:06:09,935 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-03-15 14:06:09,935 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-03-15 14:06:09,936 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 14:06:09,936 INFO L85 PathProgramCache]: Analyzing trace with hash -833363831, now seen corresponding path program 1 times [2022-03-15 14:06:09,936 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 14:06:09,936 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [981995610] [2022-03-15 14:06:09,936 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 14:06:09,936 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 14:06:10,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 14:06:10,115 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-03-15 14:06:10,115 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 14:06:10,115 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [981995610] [2022-03-15 14:06:10,115 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [981995610] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-15 14:06:10,116 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1820375476] [2022-03-15 14:06:10,116 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 14:06:10,116 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-15 14:06:10,116 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-15 14:06:10,117 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-03-15 14:06:10,118 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-03-15 14:06:10,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 14:06:10,272 INFO L263 TraceCheckSpWp]: Trace formula consists of 545 conjuncts, 20 conjunts are in the unsatisfiable core [2022-03-15 14:06:10,283 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-15 14:06:11,027 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-03-15 14:06:11,027 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-15 14:06:11,076 INFO L387 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 12 treesize of output 4 [2022-03-15 14:06:11,656 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-03-15 14:06:11,656 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1820375476] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-15 14:06:11,656 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-15 14:06:11,656 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11, 11] total 25 [2022-03-15 14:06:11,656 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [799401502] [2022-03-15 14:06:11,656 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-03-15 14:06:11,657 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2022-03-15 14:06:11,657 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 14:06:11,657 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2022-03-15 14:06:11,657 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=120, Invalid=480, Unknown=0, NotChecked=0, Total=600 [2022-03-15 14:06:11,658 INFO L87 Difference]: Start difference. First operand 6174 states and 21633 transitions. Second operand has 25 states, 25 states have (on average 15.2) internal successors, (380), 25 states have internal predecessors, (380), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 14:06:12,090 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 14:06:12,091 INFO L93 Difference]: Finished difference Result 11553 states and 39683 transitions. [2022-03-15 14:06:12,091 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-03-15 14:06:12,091 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 15.2) internal successors, (380), 25 states have internal predecessors, (380), 0 states have call successors, (0), 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 227 [2022-03-15 14:06:12,091 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 14:06:12,104 INFO L225 Difference]: With dead ends: 11553 [2022-03-15 14:06:12,104 INFO L226 Difference]: Without dead ends: 4012 [2022-03-15 14:06:12,105 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 475 GetRequests, 440 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 326 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=286, Invalid=1046, Unknown=0, NotChecked=0, Total=1332 [2022-03-15 14:06:12,105 INFO L933 BasicCegarLoop]: 237 mSDtfsCounter, 1160 mSDsluCounter, 3176 mSDsCounter, 0 mSdLazyCounter, 604 mSolverCounterSat, 41 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1160 SdHoareTripleChecker+Valid, 3250 SdHoareTripleChecker+Invalid, 645 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 41 IncrementalHoareTripleChecker+Valid, 604 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-03-15 14:06:12,105 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1160 Valid, 3250 Invalid, 645 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [41 Valid, 604 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-03-15 14:06:12,112 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4012 states. [2022-03-15 14:06:12,165 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4012 to 4007. [2022-03-15 14:06:12,170 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4007 states, 4006 states have (on average 3.3949076385421866) internal successors, (13600), 4006 states have internal predecessors, (13600), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 14:06:12,180 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4007 states to 4007 states and 13600 transitions. [2022-03-15 14:06:12,180 INFO L78 Accepts]: Start accepts. Automaton has 4007 states and 13600 transitions. Word has length 227 [2022-03-15 14:06:12,180 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 14:06:12,180 INFO L470 AbstractCegarLoop]: Abstraction has 4007 states and 13600 transitions. [2022-03-15 14:06:12,181 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 15.2) internal successors, (380), 25 states have internal predecessors, (380), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 14:06:12,181 INFO L276 IsEmpty]: Start isEmpty. Operand 4007 states and 13600 transitions. [2022-03-15 14:06:12,189 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 235 [2022-03-15 14:06:12,189 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 14:06:12,190 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 14:06:12,210 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-03-15 14:06:12,403 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-15 14:06:12,404 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-03-15 14:06:12,404 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 14:06:12,404 INFO L85 PathProgramCache]: Analyzing trace with hash -1211493865, now seen corresponding path program 2 times [2022-03-15 14:06:12,404 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 14:06:12,404 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [323346507] [2022-03-15 14:06:12,404 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 14:06:12,404 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 14:06:12,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 14:06:12,595 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-03-15 14:06:12,595 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 14:06:12,595 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [323346507] [2022-03-15 14:06:12,595 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [323346507] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 14:06:12,595 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 14:06:12,596 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-03-15 14:06:12,596 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1627543943] [2022-03-15 14:06:12,596 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 14:06:12,596 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-03-15 14:06:12,596 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 14:06:12,596 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-03-15 14:06:12,596 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2022-03-15 14:06:12,597 INFO L87 Difference]: Start difference. First operand 4007 states and 13600 transitions. Second operand has 12 states, 12 states have (on average 18.916666666666668) internal successors, (227), 12 states have internal predecessors, (227), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 14:06:12,899 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 14:06:12,899 INFO L93 Difference]: Finished difference Result 5700 states and 19646 transitions. [2022-03-15 14:06:12,901 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-03-15 14:06:12,901 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 18.916666666666668) internal successors, (227), 12 states have internal predecessors, (227), 0 states have call successors, (0), 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 234 [2022-03-15 14:06:12,901 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 14:06:12,918 INFO L225 Difference]: With dead ends: 5700 [2022-03-15 14:06:12,918 INFO L226 Difference]: Without dead ends: 5700 [2022-03-15 14:06:12,918 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 81 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=143, Invalid=507, Unknown=0, NotChecked=0, Total=650 [2022-03-15 14:06:12,919 INFO L933 BasicCegarLoop]: 224 mSDtfsCounter, 759 mSDsluCounter, 1558 mSDsCounter, 0 mSdLazyCounter, 353 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 759 SdHoareTripleChecker+Valid, 1725 SdHoareTripleChecker+Invalid, 376 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 353 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-03-15 14:06:12,919 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [759 Valid, 1725 Invalid, 376 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [23 Valid, 353 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-03-15 14:06:12,927 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5700 states. [2022-03-15 14:06:12,996 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5700 to 4896. [2022-03-15 14:06:13,003 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4896 states, 4895 states have (on average 3.417364657814096) internal successors, (16728), 4895 states have internal predecessors, (16728), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 14:06:13,017 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4896 states to 4896 states and 16728 transitions. [2022-03-15 14:06:13,017 INFO L78 Accepts]: Start accepts. Automaton has 4896 states and 16728 transitions. Word has length 234 [2022-03-15 14:06:13,018 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 14:06:13,018 INFO L470 AbstractCegarLoop]: Abstraction has 4896 states and 16728 transitions. [2022-03-15 14:06:13,018 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 18.916666666666668) internal successors, (227), 12 states have internal predecessors, (227), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 14:06:13,018 INFO L276 IsEmpty]: Start isEmpty. Operand 4896 states and 16728 transitions. [2022-03-15 14:06:13,029 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 235 [2022-03-15 14:06:13,029 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 14:06:13,030 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 14:06:13,030 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-03-15 14:06:13,030 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-03-15 14:06:13,030 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 14:06:13,030 INFO L85 PathProgramCache]: Analyzing trace with hash 566452589, now seen corresponding path program 3 times [2022-03-15 14:06:13,031 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 14:06:13,031 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [549523782] [2022-03-15 14:06:13,031 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 14:06:13,031 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 14:06:13,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 14:06:13,341 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2022-03-15 14:06:13,342 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 14:06:13,342 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [549523782] [2022-03-15 14:06:13,342 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [549523782] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 14:06:13,342 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 14:06:13,342 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2022-03-15 14:06:13,342 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1463725217] [2022-03-15 14:06:13,342 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 14:06:13,342 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-03-15 14:06:13,342 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 14:06:13,343 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-03-15 14:06:13,343 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=225, Unknown=0, NotChecked=0, Total=272 [2022-03-15 14:06:13,343 INFO L87 Difference]: Start difference. First operand 4896 states and 16728 transitions. Second operand has 17 states, 17 states have (on average 13.352941176470589) internal successors, (227), 17 states have internal predecessors, (227), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 14:06:13,749 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 14:06:13,749 INFO L93 Difference]: Finished difference Result 6494 states and 22544 transitions. [2022-03-15 14:06:13,749 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-03-15 14:06:13,749 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 13.352941176470589) internal successors, (227), 17 states have internal predecessors, (227), 0 states have call successors, (0), 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 234 [2022-03-15 14:06:13,750 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 14:06:13,770 INFO L225 Difference]: With dead ends: 6494 [2022-03-15 14:06:13,770 INFO L226 Difference]: Without dead ends: 6494 [2022-03-15 14:06:13,770 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 5 SyntacticMatches, 1 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 123 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=216, Invalid=714, Unknown=0, NotChecked=0, Total=930 [2022-03-15 14:06:13,772 INFO L933 BasicCegarLoop]: 221 mSDtfsCounter, 1229 mSDsluCounter, 1493 mSDsCounter, 0 mSdLazyCounter, 373 mSolverCounterSat, 51 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1229 SdHoareTripleChecker+Valid, 1665 SdHoareTripleChecker+Invalid, 424 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 51 IncrementalHoareTripleChecker+Valid, 373 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-03-15 14:06:13,772 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1229 Valid, 1665 Invalid, 424 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [51 Valid, 373 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-03-15 14:06:13,782 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6494 states. [2022-03-15 14:06:13,919 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6494 to 4811. [2022-03-15 14:06:13,925 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4811 states, 4810 states have (on average 3.434095634095634) internal successors, (16518), 4810 states have internal predecessors, (16518), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 14:06:13,940 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4811 states to 4811 states and 16518 transitions. [2022-03-15 14:06:13,941 INFO L78 Accepts]: Start accepts. Automaton has 4811 states and 16518 transitions. Word has length 234 [2022-03-15 14:06:13,941 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 14:06:13,941 INFO L470 AbstractCegarLoop]: Abstraction has 4811 states and 16518 transitions. [2022-03-15 14:06:13,941 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 13.352941176470589) internal successors, (227), 17 states have internal predecessors, (227), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 14:06:13,941 INFO L276 IsEmpty]: Start isEmpty. Operand 4811 states and 16518 transitions. [2022-03-15 14:06:13,954 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 240 [2022-03-15 14:06:13,955 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 14:06:13,955 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 14:06:13,955 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-03-15 14:06:13,955 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-03-15 14:06:13,956 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 14:06:13,956 INFO L85 PathProgramCache]: Analyzing trace with hash 298524689, now seen corresponding path program 1 times [2022-03-15 14:06:13,956 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 14:06:13,956 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1783942396] [2022-03-15 14:06:13,956 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 14:06:13,956 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 14:06:14,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 14:06:14,056 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-03-15 14:06:14,056 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 14:06:14,056 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1783942396] [2022-03-15 14:06:14,057 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1783942396] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 14:06:14,057 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 14:06:14,057 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-03-15 14:06:14,057 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1167347770] [2022-03-15 14:06:14,057 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 14:06:14,057 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-03-15 14:06:14,057 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 14:06:14,058 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-03-15 14:06:14,058 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-03-15 14:06:14,058 INFO L87 Difference]: Start difference. First operand 4811 states and 16518 transitions. Second operand has 4 states, 4 states have (on average 58.0) internal successors, (232), 4 states have internal predecessors, (232), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 14:06:14,154 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 14:06:14,154 INFO L93 Difference]: Finished difference Result 12001 states and 42868 transitions. [2022-03-15 14:06:14,154 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-03-15 14:06:14,155 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 58.0) internal successors, (232), 4 states have internal predecessors, (232), 0 states have call successors, (0), 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 239 [2022-03-15 14:06:14,155 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 14:06:14,196 INFO L225 Difference]: With dead ends: 12001 [2022-03-15 14:06:14,196 INFO L226 Difference]: Without dead ends: 11761 [2022-03-15 14:06:14,196 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-03-15 14:06:14,196 INFO L933 BasicCegarLoop]: 220 mSDtfsCounter, 119 mSDsluCounter, 398 mSDsCounter, 0 mSdLazyCounter, 42 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 119 SdHoareTripleChecker+Valid, 602 SdHoareTripleChecker+Invalid, 45 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 42 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-03-15 14:06:14,197 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [119 Valid, 602 Invalid, 45 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 42 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-03-15 14:06:14,214 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11761 states. [2022-03-15 14:06:14,434 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11761 to 9439. [2022-03-15 14:06:14,449 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9439 states, 9438 states have (on average 3.639966094511549) internal successors, (34354), 9438 states have internal predecessors, (34354), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 14:06:14,482 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9439 states to 9439 states and 34354 transitions. [2022-03-15 14:06:14,482 INFO L78 Accepts]: Start accepts. Automaton has 9439 states and 34354 transitions. Word has length 239 [2022-03-15 14:06:14,482 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 14:06:14,483 INFO L470 AbstractCegarLoop]: Abstraction has 9439 states and 34354 transitions. [2022-03-15 14:06:14,483 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 58.0) internal successors, (232), 4 states have internal predecessors, (232), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 14:06:14,483 INFO L276 IsEmpty]: Start isEmpty. Operand 9439 states and 34354 transitions. [2022-03-15 14:06:14,502 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 240 [2022-03-15 14:06:14,503 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 14:06:14,503 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 14:06:14,503 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-03-15 14:06:14,503 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-03-15 14:06:14,504 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 14:06:14,504 INFO L85 PathProgramCache]: Analyzing trace with hash -1882916937, now seen corresponding path program 2 times [2022-03-15 14:06:14,504 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 14:06:14,504 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1817396055] [2022-03-15 14:06:14,504 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 14:06:14,504 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 14:06:14,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 14:06:14,639 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 3 proven. 4 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2022-03-15 14:06:14,639 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 14:06:14,639 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1817396055] [2022-03-15 14:06:14,639 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1817396055] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-15 14:06:14,639 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1760507811] [2022-03-15 14:06:14,640 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-03-15 14:06:14,640 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-15 14:06:14,640 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-15 14:06:14,641 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-03-15 14:06:14,642 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-03-15 14:06:14,785 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-03-15 14:06:14,786 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-03-15 14:06:14,788 INFO L263 TraceCheckSpWp]: Trace formula consists of 580 conjuncts, 20 conjunts are in the unsatisfiable core [2022-03-15 14:06:14,794 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-15 14:06:15,349 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 3 proven. 4 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2022-03-15 14:06:15,349 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-15 14:06:16,014 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 2 proven. 5 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2022-03-15 14:06:16,015 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1760507811] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-15 14:06:16,015 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-15 14:06:16,015 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11, 11] total 25 [2022-03-15 14:06:16,015 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1954848048] [2022-03-15 14:06:16,015 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-03-15 14:06:16,016 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2022-03-15 14:06:16,016 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 14:06:16,016 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2022-03-15 14:06:16,016 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=120, Invalid=480, Unknown=0, NotChecked=0, Total=600 [2022-03-15 14:06:16,016 INFO L87 Difference]: Start difference. First operand 9439 states and 34354 transitions. Second operand has 25 states, 25 states have (on average 15.4) internal successors, (385), 25 states have internal predecessors, (385), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 14:06:16,439 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 14:06:16,439 INFO L93 Difference]: Finished difference Result 15362 states and 54263 transitions. [2022-03-15 14:06:16,439 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-03-15 14:06:16,440 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 15.4) internal successors, (385), 25 states have internal predecessors, (385), 0 states have call successors, (0), 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 239 [2022-03-15 14:06:16,440 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 14:06:16,467 INFO L225 Difference]: With dead ends: 15362 [2022-03-15 14:06:16,468 INFO L226 Difference]: Without dead ends: 9451 [2022-03-15 14:06:16,468 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 499 GetRequests, 464 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 326 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=286, Invalid=1046, Unknown=0, NotChecked=0, Total=1332 [2022-03-15 14:06:16,469 INFO L933 BasicCegarLoop]: 216 mSDtfsCounter, 744 mSDsluCounter, 2608 mSDsCounter, 0 mSdLazyCounter, 536 mSolverCounterSat, 34 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 744 SdHoareTripleChecker+Valid, 2653 SdHoareTripleChecker+Invalid, 570 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 34 IncrementalHoareTripleChecker+Valid, 536 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-03-15 14:06:16,469 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [744 Valid, 2653 Invalid, 570 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [34 Valid, 536 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-03-15 14:06:16,480 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9451 states. [2022-03-15 14:06:16,612 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9451 to 9446. [2022-03-15 14:06:16,626 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9446 states, 9445 states have (on average 3.638009528851244) internal successors, (34361), 9445 states have internal predecessors, (34361), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 14:06:16,652 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9446 states to 9446 states and 34361 transitions. [2022-03-15 14:06:16,652 INFO L78 Accepts]: Start accepts. Automaton has 9446 states and 34361 transitions. Word has length 239 [2022-03-15 14:06:16,653 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 14:06:16,653 INFO L470 AbstractCegarLoop]: Abstraction has 9446 states and 34361 transitions. [2022-03-15 14:06:16,653 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 15.4) internal successors, (385), 25 states have internal predecessors, (385), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 14:06:16,653 INFO L276 IsEmpty]: Start isEmpty. Operand 9446 states and 34361 transitions. [2022-03-15 14:06:16,671 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 247 [2022-03-15 14:06:16,671 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 14:06:16,671 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 14:06:16,690 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-03-15 14:06:16,879 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2022-03-15 14:06:16,879 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-03-15 14:06:16,880 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 14:06:16,880 INFO L85 PathProgramCache]: Analyzing trace with hash -873924213, now seen corresponding path program 3 times [2022-03-15 14:06:16,880 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 14:06:16,880 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [63034482] [2022-03-15 14:06:16,880 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 14:06:16,880 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 14:06:17,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 14:06:17,899 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 2 proven. 13 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2022-03-15 14:06:17,899 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 14:06:17,899 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [63034482] [2022-03-15 14:06:17,900 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [63034482] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-15 14:06:17,900 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [655871753] [2022-03-15 14:06:17,900 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-03-15 14:06:17,900 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-15 14:06:17,900 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-15 14:06:17,901 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-03-15 14:06:17,902 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-03-15 14:06:18,091 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2022-03-15 14:06:18,092 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-03-15 14:06:18,095 INFO L263 TraceCheckSpWp]: Trace formula consists of 593 conjuncts, 82 conjunts are in the unsatisfiable core [2022-03-15 14:06:18,103 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-15 14:06:21,126 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-15 14:06:21,129 INFO L387 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 18 treesize of output 20 [2022-03-15 14:06:21,945 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-15 14:06:21,946 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-15 14:06:21,951 INFO L353 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2022-03-15 14:06:21,952 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 39 treesize of output 42 [2022-03-15 14:06:25,041 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 2 proven. 22 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-03-15 14:06:25,041 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-15 14:06:26,228 INFO L353 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-03-15 14:06:26,228 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 190 treesize of output 250 [2022-03-15 14:06:26,254 INFO L353 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-03-15 14:06:26,254 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 111 treesize of output 129 [2022-03-15 14:06:26,261 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 54 treesize of output 42 [2022-03-15 14:06:35,511 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 2 proven. 22 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-03-15 14:06:35,512 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [655871753] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-15 14:06:35,512 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-15 14:06:35,512 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [33, 40, 40] total 107 [2022-03-15 14:06:35,512 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [642325322] [2022-03-15 14:06:35,512 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-03-15 14:06:35,513 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 107 states [2022-03-15 14:06:35,513 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 14:06:35,513 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 107 interpolants. [2022-03-15 14:06:35,515 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=572, Invalid=10768, Unknown=2, NotChecked=0, Total=11342 [2022-03-15 14:06:35,516 INFO L87 Difference]: Start difference. First operand 9446 states and 34361 transitions. Second operand has 107 states, 107 states have (on average 5.794392523364486) internal successors, (620), 107 states have internal predecessors, (620), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 14:06:54,696 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 14:06:54,696 INFO L93 Difference]: Finished difference Result 22863 states and 74334 transitions. [2022-03-15 14:06:54,696 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 183 states. [2022-03-15 14:06:54,697 INFO L78 Accepts]: Start accepts. Automaton has has 107 states, 107 states have (on average 5.794392523364486) internal successors, (620), 107 states have internal predecessors, (620), 0 states have call successors, (0), 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 246 [2022-03-15 14:06:54,697 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 14:06:54,752 INFO L225 Difference]: With dead ends: 22863 [2022-03-15 14:06:54,752 INFO L226 Difference]: Without dead ends: 22827 [2022-03-15 14:06:54,761 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 703 GetRequests, 425 SyntacticMatches, 10 SemanticMatches, 268 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22731 ImplicationChecksByTransitivity, 22.6s TimeCoverageRelationStatistics Valid=7049, Invalid=65579, Unknown=2, NotChecked=0, Total=72630 [2022-03-15 14:06:54,762 INFO L933 BasicCegarLoop]: 230 mSDtfsCounter, 12333 mSDsluCounter, 13575 mSDsCounter, 0 mSdLazyCounter, 3713 mSolverCounterSat, 708 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12333 SdHoareTripleChecker+Valid, 13101 SdHoareTripleChecker+Invalid, 5832 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 708 IncrementalHoareTripleChecker+Valid, 3713 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 1411 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2022-03-15 14:06:54,762 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [12333 Valid, 13101 Invalid, 5832 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [708 Valid, 3713 Invalid, 0 Unknown, 1411 Unchecked, 1.9s Time] [2022-03-15 14:06:54,790 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22827 states. [2022-03-15 14:06:55,046 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22827 to 13736. [2022-03-15 14:06:55,066 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13736 states, 13735 states have (on average 3.41914816163087) internal successors, (46962), 13735 states have internal predecessors, (46962), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 14:06:55,104 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13736 states to 13736 states and 46962 transitions. [2022-03-15 14:06:55,104 INFO L78 Accepts]: Start accepts. Automaton has 13736 states and 46962 transitions. Word has length 246 [2022-03-15 14:06:55,105 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 14:06:55,105 INFO L470 AbstractCegarLoop]: Abstraction has 13736 states and 46962 transitions. [2022-03-15 14:06:55,105 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 107 states, 107 states have (on average 5.794392523364486) internal successors, (620), 107 states have internal predecessors, (620), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 14:06:55,105 INFO L276 IsEmpty]: Start isEmpty. Operand 13736 states and 46962 transitions. [2022-03-15 14:06:55,130 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 247 [2022-03-15 14:06:55,130 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 14:06:55,130 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 14:06:55,148 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2022-03-15 14:06:55,334 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-15 14:06:55,335 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-03-15 14:06:55,335 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 14:06:55,335 INFO L85 PathProgramCache]: Analyzing trace with hash 754672949, now seen corresponding path program 4 times [2022-03-15 14:06:55,335 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 14:06:55,336 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1463495203] [2022-03-15 14:06:55,336 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 14:06:55,336 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 14:06:55,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 14:06:56,379 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 3 proven. 12 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2022-03-15 14:06:56,379 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 14:06:56,379 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1463495203] [2022-03-15 14:06:56,379 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1463495203] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-15 14:06:56,379 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [413193424] [2022-03-15 14:06:56,379 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-03-15 14:06:56,380 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-15 14:06:56,380 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-15 14:06:56,380 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-03-15 14:06:56,381 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-03-15 14:06:56,524 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-03-15 14:06:56,524 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-03-15 14:06:56,527 INFO L263 TraceCheckSpWp]: Trace formula consists of 539 conjuncts, 88 conjunts are in the unsatisfiable core [2022-03-15 14:06:56,532 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-15 14:06:59,327 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-15 14:06:59,328 INFO L387 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 18 treesize of output 20 [2022-03-15 14:06:59,898 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-15 14:06:59,899 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-15 14:06:59,903 INFO L353 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2022-03-15 14:06:59,904 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 41 treesize of output 44 [2022-03-15 14:07:02,939 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 2 proven. 22 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-03-15 14:07:02,939 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-15 14:07:04,084 INFO L353 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-03-15 14:07:04,085 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 185 treesize of output 245 [2022-03-15 14:07:04,107 INFO L353 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-03-15 14:07:04,107 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 106 treesize of output 124 [2022-03-15 14:07:04,120 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 54 treesize of output 42 [2022-03-15 14:07:15,130 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 2 proven. 22 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-03-15 14:07:15,131 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [413193424] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-15 14:07:15,131 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-15 14:07:15,131 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [32, 40, 40] total 104 [2022-03-15 14:07:15,131 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [841571778] [2022-03-15 14:07:15,131 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-03-15 14:07:15,135 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 104 states [2022-03-15 14:07:15,135 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 14:07:15,135 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 104 interpolants. [2022-03-15 14:07:15,136 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=557, Invalid=10152, Unknown=3, NotChecked=0, Total=10712 [2022-03-15 14:07:15,136 INFO L87 Difference]: Start difference. First operand 13736 states and 46962 transitions. Second operand has 104 states, 104 states have (on average 5.903846153846154) internal successors, (614), 104 states have internal predecessors, (614), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 14:07:40,781 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 14:07:40,781 INFO L93 Difference]: Finished difference Result 22697 states and 72515 transitions. [2022-03-15 14:07:40,782 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 205 states. [2022-03-15 14:07:40,782 INFO L78 Accepts]: Start accepts. Automaton has has 104 states, 104 states have (on average 5.903846153846154) internal successors, (614), 104 states have internal predecessors, (614), 0 states have call successors, (0), 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 246 [2022-03-15 14:07:40,782 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 14:07:40,841 INFO L225 Difference]: With dead ends: 22697 [2022-03-15 14:07:40,842 INFO L226 Difference]: Without dead ends: 22265 [2022-03-15 14:07:40,846 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 738 GetRequests, 442 SyntacticMatches, 11 SemanticMatches, 285 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25842 ImplicationChecksByTransitivity, 28.7s TimeCoverageRelationStatistics Valid=7617, Invalid=74458, Unknown=7, NotChecked=0, Total=82082 [2022-03-15 14:07:40,847 INFO L933 BasicCegarLoop]: 250 mSDtfsCounter, 11559 mSDsluCounter, 14998 mSDsCounter, 0 mSdLazyCounter, 3993 mSolverCounterSat, 705 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11559 SdHoareTripleChecker+Valid, 14578 SdHoareTripleChecker+Invalid, 6005 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 705 IncrementalHoareTripleChecker+Valid, 3993 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 1307 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2022-03-15 14:07:40,847 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [11559 Valid, 14578 Invalid, 6005 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [705 Valid, 3993 Invalid, 0 Unknown, 1307 Unchecked, 1.9s Time] [2022-03-15 14:07:40,878 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22265 states. [2022-03-15 14:07:41,156 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22265 to 16383. [2022-03-15 14:07:41,179 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16383 states, 16382 states have (on average 3.3179099011109754) internal successors, (54354), 16382 states have internal predecessors, (54354), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 14:07:41,318 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16383 states to 16383 states and 54354 transitions. [2022-03-15 14:07:41,319 INFO L78 Accepts]: Start accepts. Automaton has 16383 states and 54354 transitions. Word has length 246 [2022-03-15 14:07:41,319 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 14:07:41,319 INFO L470 AbstractCegarLoop]: Abstraction has 16383 states and 54354 transitions. [2022-03-15 14:07:41,319 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 104 states, 104 states have (on average 5.903846153846154) internal successors, (614), 104 states have internal predecessors, (614), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 14:07:41,319 INFO L276 IsEmpty]: Start isEmpty. Operand 16383 states and 54354 transitions. [2022-03-15 14:07:41,352 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 247 [2022-03-15 14:07:41,352 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 14:07:41,353 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 14:07:41,370 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2022-03-15 14:07:41,567 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-15 14:07:41,568 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-03-15 14:07:41,568 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 14:07:41,568 INFO L85 PathProgramCache]: Analyzing trace with hash -1739793713, now seen corresponding path program 5 times [2022-03-15 14:07:41,568 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 14:07:41,568 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [557651546] [2022-03-15 14:07:41,569 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 14:07:41,569 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 14:07:41,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 14:07:42,735 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 4 proven. 11 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2022-03-15 14:07:42,735 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 14:07:42,735 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [557651546] [2022-03-15 14:07:42,735 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [557651546] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-15 14:07:42,736 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1049093909] [2022-03-15 14:07:42,736 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2022-03-15 14:07:42,736 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-15 14:07:42,736 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-15 14:07:42,737 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-03-15 14:07:42,738 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-03-15 14:07:42,910 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 3 check-sat command(s) [2022-03-15 14:07:42,910 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-03-15 14:07:42,913 INFO L263 TraceCheckSpWp]: Trace formula consists of 593 conjuncts, 74 conjunts are in the unsatisfiable core [2022-03-15 14:07:42,917 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-15 14:07:45,216 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-15 14:07:45,217 INFO L387 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 18 treesize of output 20 [2022-03-15 14:07:45,880 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-15 14:07:45,881 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-15 14:07:45,883 INFO L353 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2022-03-15 14:07:45,884 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 41 treesize of output 44 [2022-03-15 14:07:46,181 INFO L353 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-03-15 14:07:46,181 INFO L387 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 2 new quantified variables, introduced 1 case distinctions, treesize of input 46 treesize of output 33 [2022-03-15 14:07:46,285 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 5 proven. 10 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2022-03-15 14:07:46,285 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-15 14:07:47,211 INFO L353 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-03-15 14:07:47,220 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 190 treesize of output 250 [2022-03-15 14:07:47,239 INFO L353 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-03-15 14:07:47,240 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 111 treesize of output 129 [2022-03-15 14:07:47,246 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 54 treesize of output 42 [2022-03-15 14:07:54,016 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 5 proven. 10 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2022-03-15 14:07:54,017 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1049093909] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-15 14:07:54,017 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-15 14:07:54,017 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [34, 31, 31] total 90 [2022-03-15 14:07:54,017 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1856874012] [2022-03-15 14:07:54,017 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-03-15 14:07:54,018 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 90 states [2022-03-15 14:07:54,018 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 14:07:54,018 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 90 interpolants. [2022-03-15 14:07:54,019 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=446, Invalid=7563, Unknown=1, NotChecked=0, Total=8010 [2022-03-15 14:07:54,019 INFO L87 Difference]: Start difference. First operand 16383 states and 54354 transitions. Second operand has 90 states, 90 states have (on average 6.7) internal successors, (603), 90 states have internal predecessors, (603), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 14:08:09,593 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 14:08:09,593 INFO L93 Difference]: Finished difference Result 65741 states and 234182 transitions. [2022-03-15 14:08:09,597 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 141 states. [2022-03-15 14:08:09,598 INFO L78 Accepts]: Start accepts. Automaton has has 90 states, 90 states have (on average 6.7) internal successors, (603), 90 states have internal predecessors, (603), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 246 [2022-03-15 14:08:09,598 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 14:08:09,832 INFO L225 Difference]: With dead ends: 65741 [2022-03-15 14:08:09,832 INFO L226 Difference]: Without dead ends: 64907 [2022-03-15 14:08:09,834 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 664 GetRequests, 443 SyntacticMatches, 12 SemanticMatches, 209 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12729 ImplicationChecksByTransitivity, 15.7s TimeCoverageRelationStatistics Valid=3830, Invalid=40471, Unknown=9, NotChecked=0, Total=44310 [2022-03-15 14:08:09,834 INFO L933 BasicCegarLoop]: 304 mSDtfsCounter, 4222 mSDsluCounter, 16357 mSDsCounter, 0 mSdLazyCounter, 5171 mSolverCounterSat, 275 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4222 SdHoareTripleChecker+Valid, 15905 SdHoareTripleChecker+Invalid, 5972 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 275 IncrementalHoareTripleChecker+Valid, 5171 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 526 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2022-03-15 14:08:09,834 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4222 Valid, 15905 Invalid, 5972 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [275 Valid, 5171 Invalid, 0 Unknown, 526 Unchecked, 2.1s Time] [2022-03-15 14:08:09,919 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 64907 states. [2022-03-15 14:08:11,121 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 64907 to 33100. [2022-03-15 14:08:11,169 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 33100 states, 33099 states have (on average 3.628266715006496) internal successors, (120092), 33099 states have internal predecessors, (120092), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 14:08:11,414 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33100 states to 33100 states and 120092 transitions. [2022-03-15 14:08:11,415 INFO L78 Accepts]: Start accepts. Automaton has 33100 states and 120092 transitions. Word has length 246 [2022-03-15 14:08:11,415 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 14:08:11,415 INFO L470 AbstractCegarLoop]: Abstraction has 33100 states and 120092 transitions. [2022-03-15 14:08:11,415 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 90 states, 90 states have (on average 6.7) internal successors, (603), 90 states have internal predecessors, (603), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 14:08:11,415 INFO L276 IsEmpty]: Start isEmpty. Operand 33100 states and 120092 transitions. [2022-03-15 14:08:11,494 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 247 [2022-03-15 14:08:11,494 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 14:08:11,494 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 14:08:11,512 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2022-03-15 14:08:11,702 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2022-03-15 14:08:11,703 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-03-15 14:08:11,703 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 14:08:11,703 INFO L85 PathProgramCache]: Analyzing trace with hash -808155429, now seen corresponding path program 6 times [2022-03-15 14:08:11,703 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 14:08:11,706 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1442757694] [2022-03-15 14:08:11,811 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 14:08:11,811 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 14:08:11,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 14:08:12,229 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 2 proven. 4 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2022-03-15 14:08:12,229 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 14:08:12,229 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1442757694] [2022-03-15 14:08:12,229 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1442757694] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-15 14:08:12,229 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1263174111] [2022-03-15 14:08:12,229 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2022-03-15 14:08:12,229 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-15 14:08:12,230 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-15 14:08:12,231 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-03-15 14:08:12,231 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-03-15 14:08:12,392 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 3 check-sat command(s) [2022-03-15 14:08:12,393 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-03-15 14:08:12,396 INFO L263 TraceCheckSpWp]: Trace formula consists of 593 conjuncts, 93 conjunts are in the unsatisfiable core [2022-03-15 14:08:12,401 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-15 14:08:14,956 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-15 14:08:14,957 INFO L387 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 21 [2022-03-15 14:08:15,543 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-15 14:08:15,544 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-15 14:08:15,548 INFO L353 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2022-03-15 14:08:15,549 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 42 treesize of output 45 [2022-03-15 14:08:16,872 INFO L353 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-03-15 14:08:16,873 INFO L387 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 2 new quantified variables, introduced 1 case distinctions, treesize of input 48 treesize of output 34 [2022-03-15 14:08:16,917 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 2 proven. 22 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-03-15 14:08:16,917 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-15 14:08:17,832 INFO L353 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-03-15 14:08:17,833 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 190 treesize of output 250 [2022-03-15 14:08:17,851 INFO L353 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-03-15 14:08:17,852 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 138 treesize of output 156 [2022-03-15 14:08:17,858 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 58 treesize of output 46 [2022-03-15 14:08:23,202 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 2 proven. 22 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-03-15 14:08:23,202 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1263174111] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-15 14:08:23,202 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-15 14:08:23,202 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [23, 40, 40] total 95 [2022-03-15 14:08:23,203 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [705066077] [2022-03-15 14:08:23,203 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-03-15 14:08:23,203 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 95 states [2022-03-15 14:08:23,203 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 14:08:23,219 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 95 interpolants. [2022-03-15 14:08:23,220 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=581, Invalid=8345, Unknown=4, NotChecked=0, Total=8930 [2022-03-15 14:08:23,220 INFO L87 Difference]: Start difference. First operand 33100 states and 120092 transitions. Second operand has 95 states, 95 states have (on average 6.389473684210526) internal successors, (607), 95 states have internal predecessors, (607), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 14:08:35,400 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 14:08:35,401 INFO L93 Difference]: Finished difference Result 39993 states and 141121 transitions. [2022-03-15 14:08:35,401 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 165 states. [2022-03-15 14:08:35,401 INFO L78 Accepts]: Start accepts. Automaton has has 95 states, 95 states have (on average 6.389473684210526) internal successors, (607), 95 states have internal predecessors, (607), 0 states have call successors, (0), 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 246 [2022-03-15 14:08:35,401 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 14:08:35,531 INFO L225 Difference]: With dead ends: 39993 [2022-03-15 14:08:35,531 INFO L226 Difference]: Without dead ends: 39993 [2022-03-15 14:08:35,533 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 674 GetRequests, 428 SyntacticMatches, 5 SemanticMatches, 241 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18628 ImplicationChecksByTransitivity, 13.6s TimeCoverageRelationStatistics Valid=6951, Invalid=51851, Unknown=4, NotChecked=0, Total=58806 [2022-03-15 14:08:35,534 INFO L933 BasicCegarLoop]: 255 mSDtfsCounter, 11647 mSDsluCounter, 12271 mSDsCounter, 0 mSdLazyCounter, 3138 mSolverCounterSat, 813 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11647 SdHoareTripleChecker+Valid, 12006 SdHoareTripleChecker+Invalid, 5103 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 813 IncrementalHoareTripleChecker+Valid, 3138 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 1152 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2022-03-15 14:08:35,534 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [11647 Valid, 12006 Invalid, 5103 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [813 Valid, 3138 Invalid, 0 Unknown, 1152 Unchecked, 1.6s Time] [2022-03-15 14:08:35,584 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39993 states. [2022-03-15 14:08:36,297 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39993 to 32993. [2022-03-15 14:08:36,344 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 32993 states, 32992 states have (on average 3.653158341416101) internal successors, (120525), 32992 states have internal predecessors, (120525), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 14:08:36,457 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32993 states to 32993 states and 120525 transitions. [2022-03-15 14:08:36,457 INFO L78 Accepts]: Start accepts. Automaton has 32993 states and 120525 transitions. Word has length 246 [2022-03-15 14:08:36,458 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 14:08:36,458 INFO L470 AbstractCegarLoop]: Abstraction has 32993 states and 120525 transitions. [2022-03-15 14:08:36,458 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 95 states, 95 states have (on average 6.389473684210526) internal successors, (607), 95 states have internal predecessors, (607), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 14:08:36,458 INFO L276 IsEmpty]: Start isEmpty. Operand 32993 states and 120525 transitions. [2022-03-15 14:08:36,534 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 247 [2022-03-15 14:08:36,534 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 14:08:36,535 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 14:08:36,552 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2022-03-15 14:08:36,735 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2022-03-15 14:08:36,735 INFO L402 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-03-15 14:08:36,736 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 14:08:36,736 INFO L85 PathProgramCache]: Analyzing trace with hash -1068162757, now seen corresponding path program 7 times [2022-03-15 14:08:36,736 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 14:08:36,736 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [738327255] [2022-03-15 14:08:36,736 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 14:08:36,736 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 14:08:36,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 14:08:37,879 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 1 proven. 14 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2022-03-15 14:08:37,880 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 14:08:37,880 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [738327255] [2022-03-15 14:08:37,880 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [738327255] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-15 14:08:37,880 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2055121272] [2022-03-15 14:08:37,880 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2022-03-15 14:08:37,880 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-15 14:08:37,880 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-15 14:08:37,881 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-03-15 14:08:37,882 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2022-03-15 14:08:38,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 14:08:38,099 INFO L263 TraceCheckSpWp]: Trace formula consists of 593 conjuncts, 100 conjunts are in the unsatisfiable core [2022-03-15 14:08:38,104 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-15 14:08:41,223 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-15 14:08:41,224 INFO L387 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 18 treesize of output 20 [2022-03-15 14:08:41,701 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-15 14:08:41,702 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-15 14:08:41,704 INFO L353 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2022-03-15 14:08:41,705 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 39 treesize of output 42 [2022-03-15 14:08:42,501 INFO L353 Elim1Store]: treesize reduction 19, result has 67.8 percent of original size [2022-03-15 14:08:42,501 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 57 treesize of output 54 [2022-03-15 14:08:42,542 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 1 proven. 23 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-03-15 14:08:42,542 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-15 14:08:43,885 INFO L353 Elim1Store]: treesize reduction 40, result has 77.7 percent of original size [2022-03-15 14:08:43,886 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 5 select indices, 5 select index equivalence classes, 0 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 417 treesize of output 483 [2022-03-15 14:08:43,899 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-15 14:08:43,920 INFO L353 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-03-15 14:08:43,921 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 1 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 5 case distinctions, treesize of input 277 treesize of output 309 [2022-03-15 14:08:43,946 INFO L353 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-03-15 14:08:43,947 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 244 treesize of output 212 [2022-03-15 14:09:21,511 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 1 proven. 23 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-03-15 14:09:21,511 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2055121272] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-15 14:09:21,511 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-15 14:09:21,511 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [33, 44, 43] total 112 [2022-03-15 14:09:21,512 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [34388250] [2022-03-15 14:09:21,512 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-03-15 14:09:21,512 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 112 states [2022-03-15 14:09:21,512 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 14:09:21,513 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 112 interpolants. [2022-03-15 14:09:21,514 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=715, Invalid=11716, Unknown=1, NotChecked=0, Total=12432 [2022-03-15 14:09:21,514 INFO L87 Difference]: Start difference. First operand 32993 states and 120525 transitions. Second operand has 112 states, 112 states have (on average 5.482142857142857) internal successors, (614), 112 states have internal predecessors, (614), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 14:09:53,327 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 14:09:53,327 INFO L93 Difference]: Finished difference Result 45595 states and 158412 transitions. [2022-03-15 14:09:53,328 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 240 states. [2022-03-15 14:09:53,328 INFO L78 Accepts]: Start accepts. Automaton has has 112 states, 112 states have (on average 5.482142857142857) internal successors, (614), 112 states have internal predecessors, (614), 0 states have call successors, (0), 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 246 [2022-03-15 14:09:53,328 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 14:09:53,463 INFO L225 Difference]: With dead ends: 45595 [2022-03-15 14:09:53,464 INFO L226 Difference]: Without dead ends: 45595 [2022-03-15 14:09:53,467 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 775 GetRequests, 430 SyntacticMatches, 14 SemanticMatches, 331 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37103 ImplicationChecksByTransitivity, 33.2s TimeCoverageRelationStatistics Valid=10950, Invalid=99596, Unknown=10, NotChecked=0, Total=110556 [2022-03-15 14:09:53,467 INFO L933 BasicCegarLoop]: 309 mSDtfsCounter, 13855 mSDsluCounter, 18798 mSDsCounter, 0 mSdLazyCounter, 5374 mSolverCounterSat, 958 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13855 SdHoareTripleChecker+Valid, 18111 SdHoareTripleChecker+Invalid, 7946 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 958 IncrementalHoareTripleChecker+Valid, 5374 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 1614 IncrementalHoareTripleChecker+Unchecked, 2.6s IncrementalHoareTripleChecker+Time [2022-03-15 14:09:53,468 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [13855 Valid, 18111 Invalid, 7946 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [958 Valid, 5374 Invalid, 0 Unknown, 1614 Unchecked, 2.6s Time] [2022-03-15 14:09:53,529 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45595 states. [2022-03-15 14:09:54,111 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45595 to 35391. [2022-03-15 14:09:54,160 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 35391 states, 35390 states have (on average 3.6126871997739474) internal successors, (127853), 35390 states have internal predecessors, (127853), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 14:09:54,263 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35391 states to 35391 states and 127853 transitions. [2022-03-15 14:09:54,264 INFO L78 Accepts]: Start accepts. Automaton has 35391 states and 127853 transitions. Word has length 246 [2022-03-15 14:09:54,264 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 14:09:54,264 INFO L470 AbstractCegarLoop]: Abstraction has 35391 states and 127853 transitions. [2022-03-15 14:09:54,264 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 112 states, 112 states have (on average 5.482142857142857) internal successors, (614), 112 states have internal predecessors, (614), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 14:09:54,264 INFO L276 IsEmpty]: Start isEmpty. Operand 35391 states and 127853 transitions. [2022-03-15 14:09:54,510 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 247 [2022-03-15 14:09:54,510 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 14:09:54,510 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 14:09:54,532 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2022-03-15 14:09:54,710 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-15 14:09:54,711 INFO L402 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-03-15 14:09:54,711 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 14:09:54,711 INFO L85 PathProgramCache]: Analyzing trace with hash -1799534223, now seen corresponding path program 8 times [2022-03-15 14:09:54,712 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 14:09:54,712 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1187047457] [2022-03-15 14:09:54,712 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 14:09:54,712 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 14:09:54,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 14:09:56,478 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 0 proven. 24 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-03-15 14:09:56,478 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 14:09:56,478 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1187047457] [2022-03-15 14:09:56,478 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1187047457] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-15 14:09:56,478 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [928794335] [2022-03-15 14:09:56,478 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-03-15 14:09:56,478 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-15 14:09:56,479 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-15 14:09:56,480 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-03-15 14:09:56,480 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2022-03-15 14:09:56,632 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-03-15 14:09:56,632 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-03-15 14:09:56,635 INFO L263 TraceCheckSpWp]: Trace formula consists of 593 conjuncts, 98 conjunts are in the unsatisfiable core [2022-03-15 14:09:56,640 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-15 14:09:59,547 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-15 14:09:59,548 INFO L387 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 18 treesize of output 20 [2022-03-15 14:10:00,039 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-15 14:10:00,040 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-15 14:10:00,043 INFO L353 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2022-03-15 14:10:00,043 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 39 treesize of output 42 [2022-03-15 14:10:01,026 INFO L353 Elim1Store]: treesize reduction 19, result has 67.8 percent of original size [2022-03-15 14:10:01,027 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 57 treesize of output 54 [2022-03-15 14:10:01,064 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 0 proven. 24 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-03-15 14:10:01,064 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-15 14:10:02,630 INFO L353 Elim1Store]: treesize reduction 40, result has 77.7 percent of original size [2022-03-15 14:10:02,630 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 5 select indices, 5 select index equivalence classes, 0 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 335 treesize of output 409 [2022-03-15 14:10:02,642 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-15 14:10:02,664 INFO L353 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-03-15 14:10:02,664 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 1 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 5 case distinctions, treesize of input 267 treesize of output 305 [2022-03-15 14:10:02,680 INFO L353 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-03-15 14:10:02,681 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 176 treesize of output 156 [2022-03-15 14:10:30,741 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 0 proven. 24 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-03-15 14:10:30,742 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [928794335] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-15 14:10:30,742 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-15 14:10:30,742 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [43, 41, 41] total 115 [2022-03-15 14:10:30,742 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1314339239] [2022-03-15 14:10:30,742 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-03-15 14:10:30,743 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 115 states [2022-03-15 14:10:30,743 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 14:10:30,743 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 115 interpolants. [2022-03-15 14:10:30,744 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=651, Invalid=12457, Unknown=2, NotChecked=0, Total=13110 [2022-03-15 14:10:30,744 INFO L87 Difference]: Start difference. First operand 35391 states and 127853 transitions. Second operand has 115 states, 115 states have (on average 5.260869565217392) internal successors, (605), 115 states have internal predecessors, (605), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 14:10:59,055 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 14:10:59,055 INFO L93 Difference]: Finished difference Result 66375 states and 238279 transitions. [2022-03-15 14:10:59,056 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 198 states. [2022-03-15 14:10:59,056 INFO L78 Accepts]: Start accepts. Automaton has has 115 states, 115 states have (on average 5.260869565217392) internal successors, (605), 115 states have internal predecessors, (605), 0 states have call successors, (0), 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 246 [2022-03-15 14:10:59,056 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 14:10:59,283 INFO L225 Difference]: With dead ends: 66375 [2022-03-15 14:10:59,283 INFO L226 Difference]: Without dead ends: 66375 [2022-03-15 14:10:59,286 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 736 GetRequests, 433 SyntacticMatches, 11 SemanticMatches, 292 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 26470 ImplicationChecksByTransitivity, 30.3s TimeCoverageRelationStatistics Valid=7568, Invalid=78559, Unknown=15, NotChecked=0, Total=86142 [2022-03-15 14:10:59,286 INFO L933 BasicCegarLoop]: 295 mSDtfsCounter, 10731 mSDsluCounter, 18257 mSDsCounter, 0 mSdLazyCounter, 4893 mSolverCounterSat, 734 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10731 SdHoareTripleChecker+Valid, 17721 SdHoareTripleChecker+Invalid, 7243 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 734 IncrementalHoareTripleChecker+Valid, 4893 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 1616 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2022-03-15 14:10:59,286 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [10731 Valid, 17721 Invalid, 7243 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [734 Valid, 4893 Invalid, 0 Unknown, 1616 Unchecked, 2.3s Time] [2022-03-15 14:10:59,371 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 66375 states. [2022-03-15 14:11:00,549 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 66375 to 39063. [2022-03-15 14:11:00,604 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 39063 states, 39062 states have (on average 3.620372740771082) internal successors, (141419), 39062 states have internal predecessors, (141419), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 14:11:00,863 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39063 states to 39063 states and 141419 transitions. [2022-03-15 14:11:00,863 INFO L78 Accepts]: Start accepts. Automaton has 39063 states and 141419 transitions. Word has length 246 [2022-03-15 14:11:00,864 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 14:11:00,864 INFO L470 AbstractCegarLoop]: Abstraction has 39063 states and 141419 transitions. [2022-03-15 14:11:00,864 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 115 states, 115 states have (on average 5.260869565217392) internal successors, (605), 115 states have internal predecessors, (605), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 14:11:00,864 INFO L276 IsEmpty]: Start isEmpty. Operand 39063 states and 141419 transitions. [2022-03-15 14:11:00,962 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 247 [2022-03-15 14:11:00,962 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 14:11:00,962 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 14:11:00,982 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2022-03-15 14:11:01,175 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2022-03-15 14:11:01,176 INFO L402 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-03-15 14:11:01,176 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 14:11:01,176 INFO L85 PathProgramCache]: Analyzing trace with hash 1700431881, now seen corresponding path program 9 times [2022-03-15 14:11:01,176 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 14:11:01,176 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1449395911] [2022-03-15 14:11:01,177 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 14:11:01,177 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 14:11:01,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 14:11:02,398 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 2 proven. 13 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2022-03-15 14:11:02,398 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 14:11:02,398 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1449395911] [2022-03-15 14:11:02,398 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1449395911] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-15 14:11:02,398 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [721640931] [2022-03-15 14:11:02,398 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-03-15 14:11:02,398 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-15 14:11:02,399 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-15 14:11:02,400 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-03-15 14:11:02,400 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2022-03-15 14:11:02,580 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2022-03-15 14:11:02,581 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-03-15 14:11:02,584 INFO L263 TraceCheckSpWp]: Trace formula consists of 593 conjuncts, 96 conjunts are in the unsatisfiable core [2022-03-15 14:11:02,593 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-15 14:11:05,524 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-15 14:11:05,525 INFO L387 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 18 treesize of output 20 [2022-03-15 14:11:06,116 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-15 14:11:06,116 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-15 14:11:06,119 INFO L353 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2022-03-15 14:11:06,119 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 39 treesize of output 42 [2022-03-15 14:11:07,097 INFO L353 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-03-15 14:11:07,097 INFO L387 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 2 new quantified variables, introduced 1 case distinctions, treesize of input 44 treesize of output 32 [2022-03-15 14:11:07,163 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 2 proven. 22 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-03-15 14:11:07,163 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-15 14:11:08,248 INFO L353 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-03-15 14:11:08,249 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 190 treesize of output 250 [2022-03-15 14:11:08,272 INFO L353 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-03-15 14:11:08,272 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 111 treesize of output 129 [2022-03-15 14:11:08,280 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 54 treesize of output 42 [2022-03-15 14:11:13,513 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 2 proven. 22 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-03-15 14:11:13,513 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [721640931] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-15 14:11:13,514 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-15 14:11:13,514 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [32, 40, 40] total 105 [2022-03-15 14:11:13,514 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [518193585] [2022-03-15 14:11:13,514 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-03-15 14:11:13,514 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 105 states [2022-03-15 14:11:13,514 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 14:11:13,515 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 105 interpolants. [2022-03-15 14:11:13,516 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=639, Invalid=10280, Unknown=1, NotChecked=0, Total=10920 [2022-03-15 14:11:13,516 INFO L87 Difference]: Start difference. First operand 39063 states and 141419 transitions. Second operand has 105 states, 105 states have (on average 5.9523809523809526) internal successors, (625), 105 states have internal predecessors, (625), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 14:11:32,119 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 14:11:32,119 INFO L93 Difference]: Finished difference Result 58145 states and 204126 transitions. [2022-03-15 14:11:32,119 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 202 states. [2022-03-15 14:11:32,120 INFO L78 Accepts]: Start accepts. Automaton has has 105 states, 105 states have (on average 5.9523809523809526) internal successors, (625), 105 states have internal predecessors, (625), 0 states have call successors, (0), 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 246 [2022-03-15 14:11:32,120 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 14:11:32,309 INFO L225 Difference]: With dead ends: 58145 [2022-03-15 14:11:32,309 INFO L226 Difference]: Without dead ends: 58145 [2022-03-15 14:11:32,312 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 725 GetRequests, 432 SyntacticMatches, 9 SemanticMatches, 284 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 26914 ImplicationChecksByTransitivity, 20.0s TimeCoverageRelationStatistics Valid=8190, Invalid=73308, Unknown=12, NotChecked=0, Total=81510 [2022-03-15 14:11:32,312 INFO L933 BasicCegarLoop]: 280 mSDtfsCounter, 9721 mSDsluCounter, 14702 mSDsCounter, 0 mSdLazyCounter, 3766 mSolverCounterSat, 651 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9721 SdHoareTripleChecker+Valid, 14355 SdHoareTripleChecker+Invalid, 6269 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 651 IncrementalHoareTripleChecker+Valid, 3766 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 1852 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2022-03-15 14:11:32,313 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [9721 Valid, 14355 Invalid, 6269 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [651 Valid, 3766 Invalid, 0 Unknown, 1852 Unchecked, 1.8s Time] [2022-03-15 14:11:32,388 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 58145 states. [2022-03-15 14:11:33,414 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 58145 to 41730. [2022-03-15 14:11:33,472 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 41730 states, 41729 states have (on average 3.6189220925495458) internal successors, (151014), 41729 states have internal predecessors, (151014), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 14:11:33,611 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41730 states to 41730 states and 151014 transitions. [2022-03-15 14:11:33,611 INFO L78 Accepts]: Start accepts. Automaton has 41730 states and 151014 transitions. Word has length 246 [2022-03-15 14:11:33,611 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 14:11:33,611 INFO L470 AbstractCegarLoop]: Abstraction has 41730 states and 151014 transitions. [2022-03-15 14:11:33,612 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 105 states, 105 states have (on average 5.9523809523809526) internal successors, (625), 105 states have internal predecessors, (625), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 14:11:33,612 INFO L276 IsEmpty]: Start isEmpty. Operand 41730 states and 151014 transitions. [2022-03-15 14:11:33,704 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 247 [2022-03-15 14:11:33,704 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 14:11:33,704 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 14:11:33,722 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2022-03-15 14:11:33,905 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2022-03-15 14:11:33,905 INFO L402 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-03-15 14:11:33,906 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 14:11:33,906 INFO L85 PathProgramCache]: Analyzing trace with hash -118756725, now seen corresponding path program 10 times [2022-03-15 14:11:33,906 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 14:11:33,906 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [174968994] [2022-03-15 14:11:33,906 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 14:11:33,906 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 14:11:33,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 14:11:36,144 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 1 proven. 23 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-03-15 14:11:36,144 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 14:11:36,144 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [174968994] [2022-03-15 14:11:36,144 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [174968994] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-15 14:11:36,144 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2138977104] [2022-03-15 14:11:36,144 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-03-15 14:11:36,144 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-15 14:11:36,144 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-15 14:11:36,145 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-03-15 14:11:36,146 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2022-03-15 14:11:36,297 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-03-15 14:11:36,297 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-03-15 14:11:36,300 INFO L263 TraceCheckSpWp]: Trace formula consists of 539 conjuncts, 101 conjunts are in the unsatisfiable core [2022-03-15 14:11:36,304 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-15 14:11:40,148 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-15 14:11:40,149 INFO L387 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 21 [2022-03-15 14:11:40,794 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-15 14:11:40,795 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-15 14:11:40,799 INFO L353 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2022-03-15 14:11:40,799 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 39 treesize of output 42 [2022-03-15 14:11:42,827 INFO L353 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-03-15 14:11:42,828 INFO L387 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 2 new quantified variables, introduced 1 case distinctions, treesize of input 44 treesize of output 32 [2022-03-15 14:11:42,854 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 1 proven. 23 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-03-15 14:11:42,854 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-15 14:11:44,054 INFO L353 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-03-15 14:11:44,055 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 263 treesize of output 315 [2022-03-15 14:11:44,076 INFO L353 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-03-15 14:11:44,076 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 139 treesize of output 151 [2022-03-15 14:11:44,084 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 118 treesize of output 94 [2022-03-15 14:11:51,666 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 1 proven. 23 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-03-15 14:11:51,666 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2138977104] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-15 14:11:51,666 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-15 14:11:51,666 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [45, 44, 43] total 124 [2022-03-15 14:11:51,666 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1421144896] [2022-03-15 14:11:51,666 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-03-15 14:11:51,667 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 124 states [2022-03-15 14:11:51,667 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 14:11:51,667 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 124 interpolants. [2022-03-15 14:11:51,668 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=748, Invalid=14502, Unknown=2, NotChecked=0, Total=15252 [2022-03-15 14:11:51,669 INFO L87 Difference]: Start difference. First operand 41730 states and 151014 transitions. Second operand has 124 states, 124 states have (on average 5.088709677419355) internal successors, (631), 124 states have internal predecessors, (631), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 14:12:26,250 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 14:12:26,250 INFO L93 Difference]: Finished difference Result 65989 states and 235965 transitions. [2022-03-15 14:12:26,250 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 224 states. [2022-03-15 14:12:26,251 INFO L78 Accepts]: Start accepts. Automaton has has 124 states, 124 states have (on average 5.088709677419355) internal successors, (631), 124 states have internal predecessors, (631), 0 states have call successors, (0), 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 246 [2022-03-15 14:12:26,251 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 14:12:26,475 INFO L225 Difference]: With dead ends: 65989 [2022-03-15 14:12:26,476 INFO L226 Difference]: Without dead ends: 65989 [2022-03-15 14:12:26,479 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 771 GetRequests, 421 SyntacticMatches, 21 SemanticMatches, 329 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 35088 ImplicationChecksByTransitivity, 37.2s TimeCoverageRelationStatistics Valid=10310, Invalid=98899, Unknown=21, NotChecked=0, Total=109230 [2022-03-15 14:12:26,479 INFO L933 BasicCegarLoop]: 376 mSDtfsCounter, 12220 mSDsluCounter, 25193 mSDsCounter, 0 mSdLazyCounter, 7017 mSolverCounterSat, 769 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12220 SdHoareTripleChecker+Valid, 23855 SdHoareTripleChecker+Invalid, 10758 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 769 IncrementalHoareTripleChecker+Valid, 7017 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 2972 IncrementalHoareTripleChecker+Unchecked, 3.2s IncrementalHoareTripleChecker+Time [2022-03-15 14:12:26,479 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [12220 Valid, 23855 Invalid, 10758 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [769 Valid, 7017 Invalid, 0 Unknown, 2972 Unchecked, 3.2s Time] [2022-03-15 14:12:26,567 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 65989 states. [2022-03-15 14:12:27,552 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 65989 to 45007. [2022-03-15 14:12:27,614 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 45007 states, 45006 states have (on average 3.62373905701462) internal successors, (163090), 45006 states have internal predecessors, (163090), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 14:12:27,761 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45007 states to 45007 states and 163090 transitions. [2022-03-15 14:12:27,761 INFO L78 Accepts]: Start accepts. Automaton has 45007 states and 163090 transitions. Word has length 246 [2022-03-15 14:12:27,761 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 14:12:27,761 INFO L470 AbstractCegarLoop]: Abstraction has 45007 states and 163090 transitions. [2022-03-15 14:12:27,762 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 124 states, 124 states have (on average 5.088709677419355) internal successors, (631), 124 states have internal predecessors, (631), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 14:12:27,762 INFO L276 IsEmpty]: Start isEmpty. Operand 45007 states and 163090 transitions. [2022-03-15 14:12:27,859 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 247 [2022-03-15 14:12:27,859 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 14:12:27,860 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 14:12:27,878 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2022-03-15 14:12:28,061 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,11 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-15 14:12:28,061 INFO L402 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-03-15 14:12:28,062 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 14:12:28,062 INFO L85 PathProgramCache]: Analyzing trace with hash 2010628545, now seen corresponding path program 11 times [2022-03-15 14:12:28,062 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 14:12:28,062 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1240458181] [2022-03-15 14:12:28,062 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 14:12:28,062 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 14:12:28,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 14:12:29,368 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2022-03-15 14:12:29,368 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 14:12:29,368 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1240458181] [2022-03-15 14:12:29,368 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1240458181] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-15 14:12:29,368 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [778826038] [2022-03-15 14:12:29,368 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2022-03-15 14:12:29,368 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-15 14:12:29,368 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-15 14:12:29,369 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-03-15 14:12:29,370 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2022-03-15 14:12:29,533 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 3 check-sat command(s) [2022-03-15 14:12:29,533 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-03-15 14:12:29,536 INFO L263 TraceCheckSpWp]: Trace formula consists of 593 conjuncts, 71 conjunts are in the unsatisfiable core [2022-03-15 14:12:29,540 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-15 14:12:29,818 INFO L387 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 [2022-03-15 14:12:29,944 INFO L353 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2022-03-15 14:12:29,944 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 12 treesize of output 14 [2022-03-15 14:12:30,366 INFO L353 Elim1Store]: treesize reduction 16, result has 36.0 percent of original size [2022-03-15 14:12:30,366 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 16 treesize of output 18 [2022-03-15 14:12:31,694 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-15 14:12:31,695 INFO L387 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 18 treesize of output 20 [2022-03-15 14:12:32,039 INFO L353 Elim1Store]: treesize reduction 19, result has 32.1 percent of original size [2022-03-15 14:12:32,040 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 39 treesize of output 46 [2022-03-15 14:12:32,046 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 29 treesize of output 17 [2022-03-15 14:12:32,174 INFO L387 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 [2022-03-15 14:12:32,221 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2022-03-15 14:12:32,222 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-15 14:12:32,944 INFO L353 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-03-15 14:12:32,944 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 190 treesize of output 250 [2022-03-15 14:12:32,962 INFO L353 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-03-15 14:12:32,963 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 111 treesize of output 129 [2022-03-15 14:12:32,969 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 54 treesize of output 42 [2022-03-15 14:12:35,987 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 13 treesize of output 11 [2022-03-15 14:12:36,048 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2022-03-15 14:12:36,048 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [778826038] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-15 14:12:36,048 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-15 14:12:36,048 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [33, 22, 22] total 70 [2022-03-15 14:12:36,049 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [848359777] [2022-03-15 14:12:36,049 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-03-15 14:12:36,049 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 70 states [2022-03-15 14:12:36,049 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 14:12:36,050 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 70 interpolants. [2022-03-15 14:12:36,050 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=216, Invalid=4613, Unknown=1, NotChecked=0, Total=4830 [2022-03-15 14:12:36,050 INFO L87 Difference]: Start difference. First operand 45007 states and 163090 transitions. Second operand has 70 states, 70 states have (on average 8.414285714285715) internal successors, (589), 70 states have internal predecessors, (589), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 14:12:40,341 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 14:12:40,341 INFO L93 Difference]: Finished difference Result 76296 states and 277296 transitions. [2022-03-15 14:12:40,341 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 60 states. [2022-03-15 14:12:40,342 INFO L78 Accepts]: Start accepts. Automaton has has 70 states, 70 states have (on average 8.414285714285715) internal successors, (589), 70 states have internal predecessors, (589), 0 states have call successors, (0), 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 246 [2022-03-15 14:12:40,342 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 14:12:40,607 INFO L225 Difference]: With dead ends: 76296 [2022-03-15 14:12:40,608 INFO L226 Difference]: Without dead ends: 76296 [2022-03-15 14:12:40,608 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 578 GetRequests, 460 SyntacticMatches, 4 SemanticMatches, 114 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2594 ImplicationChecksByTransitivity, 5.8s TimeCoverageRelationStatistics Valid=749, Invalid=12590, Unknown=1, NotChecked=0, Total=13340 [2022-03-15 14:12:40,609 INFO L933 BasicCegarLoop]: 260 mSDtfsCounter, 956 mSDsluCounter, 12209 mSDsCounter, 0 mSdLazyCounter, 2307 mSolverCounterSat, 42 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 956 SdHoareTripleChecker+Valid, 11932 SdHoareTripleChecker+Invalid, 3339 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 42 IncrementalHoareTripleChecker+Valid, 2307 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 990 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2022-03-15 14:12:40,609 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [956 Valid, 11932 Invalid, 3339 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [42 Valid, 2307 Invalid, 0 Unknown, 990 Unchecked, 1.0s Time] [2022-03-15 14:12:40,868 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 76296 states. [2022-03-15 14:12:42,138 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 76296 to 41717. [2022-03-15 14:12:42,187 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 41717 states, 41716 states have (on average 3.6889203183430817) internal successors, (153887), 41716 states have internal predecessors, (153887), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 14:12:42,441 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41717 states to 41717 states and 153887 transitions. [2022-03-15 14:12:42,441 INFO L78 Accepts]: Start accepts. Automaton has 41717 states and 153887 transitions. Word has length 246 [2022-03-15 14:12:42,441 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 14:12:42,441 INFO L470 AbstractCegarLoop]: Abstraction has 41717 states and 153887 transitions. [2022-03-15 14:12:42,442 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 70 states, 70 states have (on average 8.414285714285715) internal successors, (589), 70 states have internal predecessors, (589), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 14:12:42,442 INFO L276 IsEmpty]: Start isEmpty. Operand 41717 states and 153887 transitions. [2022-03-15 14:12:42,535 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 247 [2022-03-15 14:12:42,535 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 14:12:42,535 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 14:12:42,551 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2022-03-15 14:12:42,735 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,12 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-15 14:12:42,736 INFO L402 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-03-15 14:12:42,736 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 14:12:42,736 INFO L85 PathProgramCache]: Analyzing trace with hash 2397729, now seen corresponding path program 12 times [2022-03-15 14:12:42,736 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 14:12:42,737 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [235892389] [2022-03-15 14:12:42,737 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 14:12:42,737 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 14:12:42,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 14:12:43,952 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 4 proven. 11 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2022-03-15 14:12:43,952 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 14:12:43,952 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [235892389] [2022-03-15 14:12:43,952 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [235892389] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-15 14:12:43,952 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [749247449] [2022-03-15 14:12:43,952 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2022-03-15 14:12:43,953 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-15 14:12:43,953 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-15 14:12:43,954 INFO L229 MonitoredProcess]: Starting monitored process 13 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-03-15 14:12:43,954 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2022-03-15 14:12:44,156 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 3 check-sat command(s) [2022-03-15 14:12:44,156 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-03-15 14:12:44,159 INFO L263 TraceCheckSpWp]: Trace formula consists of 593 conjuncts, 97 conjunts are in the unsatisfiable core [2022-03-15 14:12:44,209 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-15 14:12:46,940 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-15 14:12:46,941 INFO L387 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 21 [2022-03-15 14:12:47,534 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-15 14:12:47,535 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-15 14:12:47,538 INFO L353 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2022-03-15 14:12:47,538 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 42 treesize of output 45 [2022-03-15 14:12:48,864 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 5 proven. 19 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-03-15 14:12:48,864 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-15 14:12:49,944 INFO L353 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-03-15 14:12:49,945 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 185 treesize of output 245 [2022-03-15 14:12:49,966 INFO L353 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-03-15 14:12:49,966 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 106 treesize of output 124 [2022-03-15 14:12:49,973 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 54 treesize of output 42 [2022-03-15 14:12:56,847 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 5 proven. 19 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-03-15 14:12:56,847 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [749247449] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-15 14:12:56,847 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-15 14:12:56,847 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [33, 38, 40] total 103 [2022-03-15 14:12:56,847 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1551624906] [2022-03-15 14:12:56,847 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-03-15 14:12:56,848 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 103 states [2022-03-15 14:12:56,848 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 14:12:56,848 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 103 interpolants. [2022-03-15 14:12:56,849 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=621, Invalid=9883, Unknown=2, NotChecked=0, Total=10506 [2022-03-15 14:12:56,849 INFO L87 Difference]: Start difference. First operand 41717 states and 153887 transitions. Second operand has 103 states, 103 states have (on average 5.844660194174757) internal successors, (602), 103 states have internal predecessors, (602), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 14:13:16,562 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 14:13:16,562 INFO L93 Difference]: Finished difference Result 48476 states and 174471 transitions. [2022-03-15 14:13:16,562 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 175 states. [2022-03-15 14:13:16,563 INFO L78 Accepts]: Start accepts. Automaton has has 103 states, 103 states have (on average 5.844660194174757) internal successors, (602), 103 states have internal predecessors, (602), 0 states have call successors, (0), 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 246 [2022-03-15 14:13:16,563 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 14:13:16,697 INFO L225 Difference]: With dead ends: 48476 [2022-03-15 14:13:16,697 INFO L226 Difference]: Without dead ends: 48269 [2022-03-15 14:13:16,700 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 704 GetRequests, 438 SyntacticMatches, 9 SemanticMatches, 257 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19791 ImplicationChecksByTransitivity, 22.1s TimeCoverageRelationStatistics Valid=6832, Invalid=59969, Unknown=21, NotChecked=0, Total=66822 [2022-03-15 14:13:16,700 INFO L933 BasicCegarLoop]: 259 mSDtfsCounter, 10629 mSDsluCounter, 15128 mSDsCounter, 0 mSdLazyCounter, 3860 mSolverCounterSat, 616 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10629 SdHoareTripleChecker+Valid, 14576 SdHoareTripleChecker+Invalid, 6481 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 616 IncrementalHoareTripleChecker+Valid, 3860 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 2005 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2022-03-15 14:13:16,700 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [10629 Valid, 14576 Invalid, 6481 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [616 Valid, 3860 Invalid, 0 Unknown, 2005 Unchecked, 1.8s Time] [2022-03-15 14:13:16,763 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 48269 states. [2022-03-15 14:13:17,592 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 48269 to 44103. [2022-03-15 14:13:17,654 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 44103 states, 44102 states have (on average 3.6567275860505193) internal successors, (161269), 44102 states have internal predecessors, (161269), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 14:13:17,794 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44103 states to 44103 states and 161269 transitions. [2022-03-15 14:13:17,794 INFO L78 Accepts]: Start accepts. Automaton has 44103 states and 161269 transitions. Word has length 246 [2022-03-15 14:13:17,794 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 14:13:17,794 INFO L470 AbstractCegarLoop]: Abstraction has 44103 states and 161269 transitions. [2022-03-15 14:13:17,795 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 103 states, 103 states have (on average 5.844660194174757) internal successors, (602), 103 states have internal predecessors, (602), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 14:13:17,795 INFO L276 IsEmpty]: Start isEmpty. Operand 44103 states and 161269 transitions. [2022-03-15 14:13:17,888 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 247 [2022-03-15 14:13:17,888 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 14:13:17,888 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 14:13:17,905 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Forceful destruction successful, exit code 0 [2022-03-15 14:13:18,091 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable20 [2022-03-15 14:13:18,092 INFO L402 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-03-15 14:13:18,092 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 14:13:18,092 INFO L85 PathProgramCache]: Analyzing trace with hash 1391254413, now seen corresponding path program 13 times [2022-03-15 14:13:18,092 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 14:13:18,092 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1382992540] [2022-03-15 14:13:18,092 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 14:13:18,093 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 14:13:18,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 14:13:19,041 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 3 proven. 12 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2022-03-15 14:13:19,042 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 14:13:19,042 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1382992540] [2022-03-15 14:13:19,042 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1382992540] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-15 14:13:19,042 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [684402987] [2022-03-15 14:13:19,042 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2022-03-15 14:13:19,042 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-15 14:13:19,042 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-15 14:13:19,043 INFO L229 MonitoredProcess]: Starting monitored process 14 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-03-15 14:13:19,043 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2022-03-15 14:13:19,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 14:13:19,206 INFO L263 TraceCheckSpWp]: Trace formula consists of 593 conjuncts, 86 conjunts are in the unsatisfiable core [2022-03-15 14:13:19,210 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-15 14:13:22,123 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-15 14:13:22,124 INFO L387 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 18 treesize of output 20 [2022-03-15 14:13:22,748 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-15 14:13:22,749 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-15 14:13:22,751 INFO L353 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2022-03-15 14:13:22,752 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 39 treesize of output 42 [2022-03-15 14:13:25,046 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 2 proven. 22 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-03-15 14:13:25,047 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-15 14:13:26,394 INFO L353 Elim1Store]: treesize reduction 40, result has 77.7 percent of original size [2022-03-15 14:13:26,394 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 5 select indices, 5 select index equivalence classes, 0 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 417 treesize of output 483 [2022-03-15 14:13:26,410 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-15 14:13:26,432 INFO L353 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-03-15 14:13:26,433 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 1 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 5 case distinctions, treesize of input 277 treesize of output 309 [2022-03-15 14:13:26,450 INFO L353 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-03-15 14:13:26,450 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 244 treesize of output 212 [2022-03-15 14:13:57,844 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 2 proven. 22 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-03-15 14:13:57,844 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [684402987] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-15 14:13:57,844 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-15 14:13:57,845 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [34, 40, 40] total 106 [2022-03-15 14:13:57,845 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [135288652] [2022-03-15 14:13:57,845 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-03-15 14:13:57,845 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 106 states [2022-03-15 14:13:57,845 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 14:13:57,846 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 106 interpolants. [2022-03-15 14:13:57,847 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=516, Invalid=10613, Unknown=1, NotChecked=0, Total=11130 [2022-03-15 14:13:57,847 INFO L87 Difference]: Start difference. First operand 44103 states and 161269 transitions. Second operand has 106 states, 106 states have (on average 5.69811320754717) internal successors, (604), 106 states have internal predecessors, (604), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 14:14:12,022 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 14:14:12,022 INFO L93 Difference]: Finished difference Result 49953 states and 180236 transitions. [2022-03-15 14:14:12,023 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 126 states. [2022-03-15 14:14:12,023 INFO L78 Accepts]: Start accepts. Automaton has has 106 states, 106 states have (on average 5.69811320754717) internal successors, (604), 106 states have internal predecessors, (604), 0 states have call successors, (0), 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 246 [2022-03-15 14:14:12,023 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 14:14:12,190 INFO L225 Difference]: With dead ends: 49953 [2022-03-15 14:14:12,191 INFO L226 Difference]: Without dead ends: 49953 [2022-03-15 14:14:12,193 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 657 GetRequests, 436 SyntacticMatches, 10 SemanticMatches, 211 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12364 ImplicationChecksByTransitivity, 17.0s TimeCoverageRelationStatistics Valid=3836, Invalid=41319, Unknown=1, NotChecked=0, Total=45156 [2022-03-15 14:14:12,193 INFO L933 BasicCegarLoop]: 247 mSDtfsCounter, 6734 mSDsluCounter, 14114 mSDsCounter, 0 mSdLazyCounter, 3182 mSolverCounterSat, 341 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6734 SdHoareTripleChecker+Valid, 13959 SdHoareTripleChecker+Invalid, 4283 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 341 IncrementalHoareTripleChecker+Valid, 3182 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 760 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2022-03-15 14:14:12,193 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6734 Valid, 13959 Invalid, 4283 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [341 Valid, 3182 Invalid, 0 Unknown, 760 Unchecked, 1.5s Time] [2022-03-15 14:14:12,259 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 49953 states. [2022-03-15 14:14:13,014 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 49953 to 45323. [2022-03-15 14:14:13,075 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 45323 states, 45322 states have (on average 3.6534133533383346) internal successors, (165580), 45322 states have internal predecessors, (165580), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 14:14:13,220 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45323 states to 45323 states and 165580 transitions. [2022-03-15 14:14:13,220 INFO L78 Accepts]: Start accepts. Automaton has 45323 states and 165580 transitions. Word has length 246 [2022-03-15 14:14:13,221 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 14:14:13,221 INFO L470 AbstractCegarLoop]: Abstraction has 45323 states and 165580 transitions. [2022-03-15 14:14:13,221 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 106 states, 106 states have (on average 5.69811320754717) internal successors, (604), 106 states have internal predecessors, (604), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 14:14:13,221 INFO L276 IsEmpty]: Start isEmpty. Operand 45323 states and 165580 transitions. [2022-03-15 14:14:13,615 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 247 [2022-03-15 14:14:13,615 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 14:14:13,615 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 14:14:13,642 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Forceful destruction successful, exit code 0 [2022-03-15 14:14:13,835 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable21 [2022-03-15 14:14:13,835 INFO L402 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-03-15 14:14:13,836 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 14:14:13,836 INFO L85 PathProgramCache]: Analyzing trace with hash 934036013, now seen corresponding path program 14 times [2022-03-15 14:14:13,836 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 14:14:13,836 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [70098037] [2022-03-15 14:14:13,836 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 14:14:13,836 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 14:14:14,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 14:14:15,041 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 2 proven. 13 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2022-03-15 14:14:15,041 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 14:14:15,042 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [70098037] [2022-03-15 14:14:15,042 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [70098037] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-15 14:14:15,042 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [520067086] [2022-03-15 14:14:15,042 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-03-15 14:14:15,042 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-15 14:14:15,042 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-15 14:14:15,043 INFO L229 MonitoredProcess]: Starting monitored process 15 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-03-15 14:14:15,044 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2022-03-15 14:14:15,217 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-03-15 14:14:15,217 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-03-15 14:14:15,220 INFO L263 TraceCheckSpWp]: Trace formula consists of 593 conjuncts, 93 conjunts are in the unsatisfiable core [2022-03-15 14:14:15,224 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-15 14:14:17,958 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-15 14:14:17,959 INFO L387 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 21 [2022-03-15 14:14:18,570 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-15 14:14:18,571 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-15 14:14:18,573 INFO L353 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2022-03-15 14:14:18,573 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 41 treesize of output 44 [2022-03-15 14:14:20,812 INFO L353 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-03-15 14:14:20,812 INFO L387 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 2 new quantified variables, introduced 1 case distinctions, treesize of input 48 treesize of output 34 [2022-03-15 14:14:20,863 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 2 proven. 22 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-03-15 14:14:20,863 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-15 14:14:21,987 INFO L353 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-03-15 14:14:21,987 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 263 treesize of output 315 [2022-03-15 14:14:22,007 INFO L353 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-03-15 14:14:22,007 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 139 treesize of output 151 [2022-03-15 14:14:22,018 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 118 treesize of output 94 [2022-03-15 14:14:28,240 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 2 proven. 22 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-03-15 14:14:28,240 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [520067086] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-15 14:14:28,240 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-15 14:14:28,240 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [34, 40, 40] total 104 [2022-03-15 14:14:28,240 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [212484800] [2022-03-15 14:14:28,240 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-03-15 14:14:28,241 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 104 states [2022-03-15 14:14:28,241 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 14:14:28,241 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 104 interpolants. [2022-03-15 14:14:28,242 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=584, Invalid=10125, Unknown=3, NotChecked=0, Total=10712 [2022-03-15 14:14:28,242 INFO L87 Difference]: Start difference. First operand 45323 states and 165580 transitions. Second operand has 104 states, 104 states have (on average 5.75) internal successors, (598), 104 states have internal predecessors, (598), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 14:14:47,828 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 14:14:47,828 INFO L93 Difference]: Finished difference Result 53417 states and 191547 transitions. [2022-03-15 14:14:47,829 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 164 states. [2022-03-15 14:14:47,829 INFO L78 Accepts]: Start accepts. Automaton has has 104 states, 104 states have (on average 5.75) internal successors, (598), 104 states have internal predecessors, (598), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 246 [2022-03-15 14:14:47,829 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 14:14:47,992 INFO L225 Difference]: With dead ends: 53417 [2022-03-15 14:14:47,992 INFO L226 Difference]: Without dead ends: 53417 [2022-03-15 14:14:47,994 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 690 GetRequests, 439 SyntacticMatches, 5 SemanticMatches, 246 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16788 ImplicationChecksByTransitivity, 22.9s TimeCoverageRelationStatistics Valid=6524, Invalid=54722, Unknown=10, NotChecked=0, Total=61256 [2022-03-15 14:14:47,994 INFO L933 BasicCegarLoop]: 252 mSDtfsCounter, 11009 mSDsluCounter, 14467 mSDsCounter, 0 mSdLazyCounter, 3780 mSolverCounterSat, 697 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11009 SdHoareTripleChecker+Valid, 13968 SdHoareTripleChecker+Invalid, 6478 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 697 IncrementalHoareTripleChecker+Valid, 3780 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 2001 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2022-03-15 14:14:47,994 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [11009 Valid, 13968 Invalid, 6478 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [697 Valid, 3780 Invalid, 0 Unknown, 2001 Unchecked, 1.8s Time] [2022-03-15 14:14:48,058 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 53417 states. [2022-03-15 14:14:48,816 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 53417 to 46061. [2022-03-15 14:14:48,880 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 46061 states, 46060 states have (on average 3.6531480677377335) internal successors, (168264), 46060 states have internal predecessors, (168264), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 14:14:49,030 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46061 states to 46061 states and 168264 transitions. [2022-03-15 14:14:49,030 INFO L78 Accepts]: Start accepts. Automaton has 46061 states and 168264 transitions. Word has length 246 [2022-03-15 14:14:49,030 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 14:14:49,031 INFO L470 AbstractCegarLoop]: Abstraction has 46061 states and 168264 transitions. [2022-03-15 14:14:49,031 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 104 states, 104 states have (on average 5.75) internal successors, (598), 104 states have internal predecessors, (598), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 14:14:49,031 INFO L276 IsEmpty]: Start isEmpty. Operand 46061 states and 168264 transitions. [2022-03-15 14:14:49,126 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 247 [2022-03-15 14:14:49,126 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 14:14:49,126 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 14:14:49,143 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Forceful destruction successful, exit code 0 [2022-03-15 14:14:49,326 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22,15 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-15 14:14:49,327 INFO L402 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-03-15 14:14:49,327 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 14:14:49,327 INFO L85 PathProgramCache]: Analyzing trace with hash 674028685, now seen corresponding path program 15 times [2022-03-15 14:14:49,327 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 14:14:49,327 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [823691459] [2022-03-15 14:14:49,327 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 14:14:49,327 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 14:14:49,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 14:14:51,645 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 1 proven. 23 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-03-15 14:14:51,645 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 14:14:51,645 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [823691459] [2022-03-15 14:14:51,645 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [823691459] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-15 14:14:51,645 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [72429651] [2022-03-15 14:14:51,646 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-03-15 14:14:51,646 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-15 14:14:51,646 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-15 14:14:51,647 INFO L229 MonitoredProcess]: Starting monitored process 16 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-03-15 14:14:51,647 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2022-03-15 14:14:51,839 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2022-03-15 14:14:51,839 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-03-15 14:14:51,842 INFO L263 TraceCheckSpWp]: Trace formula consists of 593 conjuncts, 81 conjunts are in the unsatisfiable core [2022-03-15 14:14:51,846 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-15 14:14:54,185 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-15 14:14:54,185 INFO L387 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 18 treesize of output 20 [2022-03-15 14:14:54,641 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-15 14:14:54,641 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-15 14:14:54,645 INFO L353 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2022-03-15 14:14:54,646 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 39 treesize of output 42 [2022-03-15 14:14:56,152 INFO L353 Elim1Store]: treesize reduction 19, result has 67.8 percent of original size [2022-03-15 14:14:56,152 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 57 treesize of output 54 [2022-03-15 14:14:56,215 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 1 proven. 21 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-03-15 14:14:56,215 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-15 14:14:57,557 INFO L353 Elim1Store]: treesize reduction 28, result has 84.4 percent of original size [2022-03-15 14:14:57,558 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 5 select indices, 5 select index equivalence classes, 0 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 262 treesize of output 356 [2022-03-15 14:14:57,605 INFO L353 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-03-15 14:14:57,605 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 175 treesize of output 235 [2022-03-15 14:14:57,620 INFO L353 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-03-15 14:14:57,620 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 112 treesize of output 104 [2022-03-15 14:15:39,827 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 1 proven. 14 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2022-03-15 14:15:39,828 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [72429651] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-15 14:15:39,828 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-15 14:15:39,828 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [44, 34, 32] total 100 [2022-03-15 14:15:39,828 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1750402542] [2022-03-15 14:15:39,828 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-03-15 14:15:39,832 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 100 states [2022-03-15 14:15:39,832 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 14:15:39,833 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 100 interpolants. [2022-03-15 14:15:39,833 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=460, Invalid=9435, Unknown=5, NotChecked=0, Total=9900 [2022-03-15 14:15:39,833 INFO L87 Difference]: Start difference. First operand 46061 states and 168264 transitions. Second operand has 100 states, 100 states have (on average 5.97) internal successors, (597), 100 states have internal predecessors, (597), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 14:15:55,314 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 14:15:55,314 INFO L93 Difference]: Finished difference Result 52085 states and 187647 transitions. [2022-03-15 14:15:55,315 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 164 states. [2022-03-15 14:15:55,315 INFO L78 Accepts]: Start accepts. Automaton has has 100 states, 100 states have (on average 5.97) internal successors, (597), 100 states have internal predecessors, (597), 0 states have call successors, (0), 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 246 [2022-03-15 14:15:55,315 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 14:15:55,486 INFO L225 Difference]: With dead ends: 52085 [2022-03-15 14:15:55,486 INFO L226 Difference]: Without dead ends: 52085 [2022-03-15 14:15:55,489 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 693 GetRequests, 445 SyntacticMatches, 6 SemanticMatches, 242 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16178 ImplicationChecksByTransitivity, 18.3s TimeCoverageRelationStatistics Valid=5918, Invalid=53365, Unknown=9, NotChecked=0, Total=59292 [2022-03-15 14:15:55,490 INFO L933 BasicCegarLoop]: 238 mSDtfsCounter, 6542 mSDsluCounter, 14764 mSDsCounter, 0 mSdLazyCounter, 3747 mSolverCounterSat, 466 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6542 SdHoareTripleChecker+Valid, 14489 SdHoareTripleChecker+Invalid, 5363 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 466 IncrementalHoareTripleChecker+Valid, 3747 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 1150 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2022-03-15 14:15:55,490 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6542 Valid, 14489 Invalid, 5363 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [466 Valid, 3747 Invalid, 0 Unknown, 1150 Unchecked, 1.7s Time] [2022-03-15 14:15:55,556 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52085 states. [2022-03-15 14:15:56,384 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52085 to 47032. [2022-03-15 14:15:56,449 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 47032 states, 47031 states have (on average 3.648508430609598) internal successors, (171593), 47031 states have internal predecessors, (171593), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 14:15:56,594 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47032 states to 47032 states and 171593 transitions. [2022-03-15 14:15:56,594 INFO L78 Accepts]: Start accepts. Automaton has 47032 states and 171593 transitions. Word has length 246 [2022-03-15 14:15:56,595 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 14:15:56,595 INFO L470 AbstractCegarLoop]: Abstraction has 47032 states and 171593 transitions. [2022-03-15 14:15:56,595 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 100 states, 100 states have (on average 5.97) internal successors, (597), 100 states have internal predecessors, (597), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 14:15:56,595 INFO L276 IsEmpty]: Start isEmpty. Operand 47032 states and 171593 transitions. [2022-03-15 14:15:56,689 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 247 [2022-03-15 14:15:56,690 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 14:15:56,690 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 14:15:56,709 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Forceful destruction successful, exit code 0 [2022-03-15 14:15:56,890 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23,16 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-15 14:15:56,890 INFO L402 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-03-15 14:15:56,891 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 14:15:56,891 INFO L85 PathProgramCache]: Analyzing trace with hash -57342781, now seen corresponding path program 16 times [2022-03-15 14:15:56,891 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 14:15:56,891 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [214130111] [2022-03-15 14:15:56,892 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 14:15:56,892 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 14:15:56,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 14:15:58,399 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 0 proven. 24 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-03-15 14:15:58,399 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 14:15:58,399 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [214130111] [2022-03-15 14:15:58,399 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [214130111] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-15 14:15:58,399 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1582642284] [2022-03-15 14:15:58,400 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-03-15 14:15:58,400 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-15 14:15:58,400 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-15 14:15:58,401 INFO L229 MonitoredProcess]: Starting monitored process 17 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-03-15 14:15:58,401 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Waiting until timeout for monitored process [2022-03-15 14:15:58,571 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-03-15 14:15:58,571 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-03-15 14:15:58,574 INFO L263 TraceCheckSpWp]: Trace formula consists of 539 conjuncts, 94 conjunts are in the unsatisfiable core [2022-03-15 14:15:58,578 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-15 14:16:01,852 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-15 14:16:01,853 INFO L387 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 18 treesize of output 20 [2022-03-15 14:16:02,895 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-15 14:16:02,895 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-15 14:16:02,898 INFO L353 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2022-03-15 14:16:02,898 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 39 treesize of output 42 [2022-03-15 14:16:04,520 INFO L353 Elim1Store]: treesize reduction 33, result has 42.1 percent of original size [2022-03-15 14:16:04,520 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 44 treesize of output 35 [2022-03-15 14:16:04,554 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 0 proven. 24 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-03-15 14:16:04,554 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-15 14:16:05,655 INFO L353 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-03-15 14:16:05,656 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 263 treesize of output 315 [2022-03-15 14:16:05,675 INFO L353 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-03-15 14:16:05,675 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 203 treesize of output 215 [2022-03-15 14:16:05,682 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 118 treesize of output 94 [2022-03-15 14:16:13,802 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 1 proven. 23 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-03-15 14:16:13,802 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1582642284] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-15 14:16:13,802 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-15 14:16:13,802 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [43, 44, 43] total 120 [2022-03-15 14:16:13,802 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1262503785] [2022-03-15 14:16:13,802 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-03-15 14:16:13,803 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 120 states [2022-03-15 14:16:13,803 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 14:16:13,803 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 120 interpolants. [2022-03-15 14:16:13,804 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=670, Invalid=13608, Unknown=2, NotChecked=0, Total=14280 [2022-03-15 14:16:13,804 INFO L87 Difference]: Start difference. First operand 47032 states and 171593 transitions. Second operand has 120 states, 120 states have (on average 5.133333333333334) internal successors, (616), 120 states have internal predecessors, (616), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 14:16:49,280 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 14:16:49,280 INFO L93 Difference]: Finished difference Result 57455 states and 204175 transitions. [2022-03-15 14:16:49,280 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 222 states. [2022-03-15 14:16:49,280 INFO L78 Accepts]: Start accepts. Automaton has has 120 states, 120 states have (on average 5.133333333333334) internal successors, (616), 120 states have internal predecessors, (616), 0 states have call successors, (0), 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 246 [2022-03-15 14:16:49,281 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 14:16:49,465 INFO L225 Difference]: With dead ends: 57455 [2022-03-15 14:16:49,465 INFO L226 Difference]: Without dead ends: 57455 [2022-03-15 14:16:49,469 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 755 GetRequests, 423 SyntacticMatches, 10 SemanticMatches, 322 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 32002 ImplicationChecksByTransitivity, 37.7s TimeCoverageRelationStatistics Valid=9880, Invalid=94768, Unknown=4, NotChecked=0, Total=104652 [2022-03-15 14:16:49,470 INFO L933 BasicCegarLoop]: 332 mSDtfsCounter, 8618 mSDsluCounter, 24288 mSDsCounter, 0 mSdLazyCounter, 6993 mSolverCounterSat, 530 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8618 SdHoareTripleChecker+Valid, 23361 SdHoareTripleChecker+Invalid, 9439 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 530 IncrementalHoareTripleChecker+Valid, 6993 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 1916 IncrementalHoareTripleChecker+Unchecked, 3.1s IncrementalHoareTripleChecker+Time [2022-03-15 14:16:49,470 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [8618 Valid, 23361 Invalid, 9439 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [530 Valid, 6993 Invalid, 0 Unknown, 1916 Unchecked, 3.1s Time] [2022-03-15 14:16:49,546 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 57455 states. [2022-03-15 14:16:50,417 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 57455 to 49444. [2022-03-15 14:16:50,484 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 49444 states, 49443 states have (on average 3.62490140161398) internal successors, (179226), 49443 states have internal predecessors, (179226), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 14:16:50,640 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49444 states to 49444 states and 179226 transitions. [2022-03-15 14:16:50,640 INFO L78 Accepts]: Start accepts. Automaton has 49444 states and 179226 transitions. Word has length 246 [2022-03-15 14:16:50,640 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 14:16:50,641 INFO L470 AbstractCegarLoop]: Abstraction has 49444 states and 179226 transitions. [2022-03-15 14:16:50,641 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 120 states, 120 states have (on average 5.133333333333334) internal successors, (616), 120 states have internal predecessors, (616), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 14:16:50,641 INFO L276 IsEmpty]: Start isEmpty. Operand 49444 states and 179226 transitions. [2022-03-15 14:16:50,754 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 247 [2022-03-15 14:16:50,754 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 14:16:50,754 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 14:16:50,771 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Ended with exit code 0 [2022-03-15 14:16:50,954 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable24 [2022-03-15 14:16:50,955 INFO L402 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-03-15 14:16:50,955 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 14:16:50,956 INFO L85 PathProgramCache]: Analyzing trace with hash 1651554605, now seen corresponding path program 17 times [2022-03-15 14:16:50,956 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 14:16:50,956 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [346082582] [2022-03-15 14:16:50,956 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 14:16:50,956 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 14:16:50,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 14:16:51,313 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2022-03-15 14:16:51,313 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 14:16:51,313 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [346082582] [2022-03-15 14:16:51,313 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [346082582] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-15 14:16:51,313 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1112551176] [2022-03-15 14:16:51,313 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2022-03-15 14:16:51,313 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-15 14:16:51,313 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-15 14:16:51,314 INFO L229 MonitoredProcess]: Starting monitored process 18 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-03-15 14:16:51,316 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Waiting until timeout for monitored process [2022-03-15 14:16:51,527 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 3 check-sat command(s) [2022-03-15 14:16:51,528 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-03-15 14:16:51,530 INFO L263 TraceCheckSpWp]: Trace formula consists of 593 conjuncts, 87 conjunts are in the unsatisfiable core [2022-03-15 14:16:51,534 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-15 14:16:53,971 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-15 14:16:53,971 INFO L387 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 18 treesize of output 20 [2022-03-15 14:16:54,508 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-15 14:16:54,509 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-15 14:16:54,512 INFO L353 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2022-03-15 14:16:54,512 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 42 treesize of output 45 [2022-03-15 14:16:55,946 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 2 proven. 22 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-03-15 14:16:55,946 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-15 14:16:57,210 INFO L353 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-03-15 14:16:57,211 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 268 treesize of output 320 [2022-03-15 14:16:57,233 INFO L353 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-03-15 14:16:57,233 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 208 treesize of output 220 [2022-03-15 14:16:57,241 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 118 treesize of output 94 [2022-03-15 14:17:14,510 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 2 proven. 22 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-03-15 14:17:14,511 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1112551176] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-15 14:17:14,511 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-15 14:17:14,511 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [23, 39, 39] total 95 [2022-03-15 14:17:14,511 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [432392333] [2022-03-15 14:17:14,511 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-03-15 14:17:14,511 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 95 states [2022-03-15 14:17:14,511 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 14:17:14,512 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 95 interpolants. [2022-03-15 14:17:14,512 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=510, Invalid=8419, Unknown=1, NotChecked=0, Total=8930 [2022-03-15 14:17:14,513 INFO L87 Difference]: Start difference. First operand 49444 states and 179226 transitions. Second operand has 95 states, 95 states have (on average 6.557894736842106) internal successors, (623), 95 states have internal predecessors, (623), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 14:17:37,184 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 14:17:37,184 INFO L93 Difference]: Finished difference Result 61338 states and 219070 transitions. [2022-03-15 14:17:37,184 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 205 states. [2022-03-15 14:17:37,185 INFO L78 Accepts]: Start accepts. Automaton has has 95 states, 95 states have (on average 6.557894736842106) internal successors, (623), 95 states have internal predecessors, (623), 0 states have call successors, (0), 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 246 [2022-03-15 14:17:37,185 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 14:17:37,382 INFO L225 Difference]: With dead ends: 61338 [2022-03-15 14:17:37,383 INFO L226 Difference]: Without dead ends: 61329 [2022-03-15 14:17:37,385 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 724 GetRequests, 434 SyntacticMatches, 11 SemanticMatches, 279 ConstructedPredicates, 0 IntricatePredicates, 1 DeprecatedPredicates, 26581 ImplicationChecksByTransitivity, 23.7s TimeCoverageRelationStatistics Valid=7642, Invalid=71037, Unknown=1, NotChecked=0, Total=78680 [2022-03-15 14:17:37,385 INFO L933 BasicCegarLoop]: 259 mSDtfsCounter, 13271 mSDsluCounter, 13269 mSDsCounter, 0 mSdLazyCounter, 2924 mSolverCounterSat, 879 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13271 SdHoareTripleChecker+Valid, 12813 SdHoareTripleChecker+Invalid, 5806 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 879 IncrementalHoareTripleChecker+Valid, 2924 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 2003 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2022-03-15 14:17:37,385 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [13271 Valid, 12813 Invalid, 5806 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [879 Valid, 2924 Invalid, 0 Unknown, 2003 Unchecked, 1.5s Time] [2022-03-15 14:17:37,463 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 61329 states. [2022-03-15 14:17:38,539 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 61329 to 54239. [2022-03-15 14:17:38,614 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 54239 states, 54238 states have (on average 3.6206902909399314) internal successors, (196379), 54238 states have internal predecessors, (196379), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 14:17:39,127 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54239 states to 54239 states and 196379 transitions. [2022-03-15 14:17:39,127 INFO L78 Accepts]: Start accepts. Automaton has 54239 states and 196379 transitions. Word has length 246 [2022-03-15 14:17:39,128 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 14:17:39,128 INFO L470 AbstractCegarLoop]: Abstraction has 54239 states and 196379 transitions. [2022-03-15 14:17:39,128 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 95 states, 95 states have (on average 6.557894736842106) internal successors, (623), 95 states have internal predecessors, (623), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 14:17:39,128 INFO L276 IsEmpty]: Start isEmpty. Operand 54239 states and 196379 transitions. [2022-03-15 14:17:39,255 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 247 [2022-03-15 14:17:39,255 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 14:17:39,255 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 14:17:39,272 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Forceful destruction successful, exit code 0 [2022-03-15 14:17:39,455 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 18 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable25 [2022-03-15 14:17:39,456 INFO L402 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-03-15 14:17:39,456 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 14:17:39,456 INFO L85 PathProgramCache]: Analyzing trace with hash -1441550707, now seen corresponding path program 18 times [2022-03-15 14:17:39,456 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 14:17:39,456 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [514930374] [2022-03-15 14:17:39,457 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 14:17:39,457 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 14:17:39,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 14:17:40,074 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 2 proven. 4 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2022-03-15 14:17:40,074 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 14:17:40,074 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [514930374] [2022-03-15 14:17:40,075 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [514930374] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-15 14:17:40,075 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1464017671] [2022-03-15 14:17:40,075 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2022-03-15 14:17:40,075 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-15 14:17:40,075 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-15 14:17:40,076 INFO L229 MonitoredProcess]: Starting monitored process 19 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-03-15 14:17:40,077 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Waiting until timeout for monitored process [2022-03-15 14:17:40,271 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 3 check-sat command(s) [2022-03-15 14:17:40,271 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-03-15 14:17:40,274 INFO L263 TraceCheckSpWp]: Trace formula consists of 593 conjuncts, 87 conjunts are in the unsatisfiable core [2022-03-15 14:17:40,278 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-15 14:17:42,758 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-15 14:17:42,759 INFO L387 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 18 treesize of output 20 [2022-03-15 14:17:43,293 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-15 14:17:43,293 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-15 14:17:43,296 INFO L353 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2022-03-15 14:17:43,296 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 39 treesize of output 42 [2022-03-15 14:17:45,292 INFO L353 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-03-15 14:17:45,292 INFO L387 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 2 new quantified variables, introduced 1 case distinctions, treesize of input 44 treesize of output 32 [2022-03-15 14:17:45,318 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 2 proven. 22 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-03-15 14:17:45,318 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-15 14:17:46,268 INFO L353 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-03-15 14:17:46,269 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 263 treesize of output 315 [2022-03-15 14:17:46,288 INFO L353 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-03-15 14:17:46,289 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 203 treesize of output 215 [2022-03-15 14:17:46,295 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 118 treesize of output 94 [2022-03-15 14:17:51,894 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 2 proven. 22 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-03-15 14:17:51,894 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1464017671] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-15 14:17:51,894 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-15 14:17:51,895 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [23, 40, 40] total 95 [2022-03-15 14:17:51,895 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [698394149] [2022-03-15 14:17:51,895 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-03-15 14:17:51,895 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 95 states [2022-03-15 14:17:51,895 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 14:17:51,896 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 95 interpolants. [2022-03-15 14:17:51,896 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=585, Invalid=8342, Unknown=3, NotChecked=0, Total=8930 [2022-03-15 14:17:51,897 INFO L87 Difference]: Start difference. First operand 54239 states and 196379 transitions. Second operand has 95 states, 95 states have (on average 6.494736842105263) internal successors, (617), 95 states have internal predecessors, (617), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 14:18:08,110 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 14:18:08,110 INFO L93 Difference]: Finished difference Result 60304 states and 215105 transitions. [2022-03-15 14:18:08,110 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 172 states. [2022-03-15 14:18:08,110 INFO L78 Accepts]: Start accepts. Automaton has has 95 states, 95 states have (on average 6.494736842105263) internal successors, (617), 95 states have internal predecessors, (617), 0 states have call successors, (0), 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 246 [2022-03-15 14:18:08,111 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 14:18:08,309 INFO L225 Difference]: With dead ends: 60304 [2022-03-15 14:18:08,309 INFO L226 Difference]: Without dead ends: 60304 [2022-03-15 14:18:08,311 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 702 GetRequests, 449 SyntacticMatches, 5 SemanticMatches, 248 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19637 ImplicationChecksByTransitivity, 17.8s TimeCoverageRelationStatistics Valid=7099, Invalid=55147, Unknown=4, NotChecked=0, Total=62250 [2022-03-15 14:18:08,312 INFO L933 BasicCegarLoop]: 250 mSDtfsCounter, 9744 mSDsluCounter, 11952 mSDsCounter, 0 mSdLazyCounter, 2990 mSolverCounterSat, 705 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9744 SdHoareTripleChecker+Valid, 11561 SdHoareTripleChecker+Invalid, 5336 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 705 IncrementalHoareTripleChecker+Valid, 2990 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 1641 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2022-03-15 14:18:08,312 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [9744 Valid, 11561 Invalid, 5336 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [705 Valid, 2990 Invalid, 0 Unknown, 1641 Unchecked, 1.4s Time] [2022-03-15 14:18:08,389 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 60304 states. [2022-03-15 14:18:09,484 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 60304 to 52713. [2022-03-15 14:18:09,557 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 52713 states, 52712 states have (on average 3.627276521475186) internal successors, (191201), 52712 states have internal predecessors, (191201), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 14:18:09,733 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52713 states to 52713 states and 191201 transitions. [2022-03-15 14:18:09,733 INFO L78 Accepts]: Start accepts. Automaton has 52713 states and 191201 transitions. Word has length 246 [2022-03-15 14:18:09,733 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 14:18:09,733 INFO L470 AbstractCegarLoop]: Abstraction has 52713 states and 191201 transitions. [2022-03-15 14:18:09,733 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 95 states, 95 states have (on average 6.494736842105263) internal successors, (617), 95 states have internal predecessors, (617), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 14:18:09,733 INFO L276 IsEmpty]: Start isEmpty. Operand 52713 states and 191201 transitions. [2022-03-15 14:18:09,860 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 247 [2022-03-15 14:18:09,860 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 14:18:09,860 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 14:18:09,880 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Forceful destruction successful, exit code 0 [2022-03-15 14:18:10,061 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 19 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable26 [2022-03-15 14:18:10,061 INFO L402 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-03-15 14:18:10,062 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 14:18:10,062 INFO L85 PathProgramCache]: Analyzing trace with hash 1034227983, now seen corresponding path program 19 times [2022-03-15 14:18:10,062 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 14:18:10,062 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1923618039] [2022-03-15 14:18:10,062 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 14:18:10,062 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 14:18:10,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 14:18:10,942 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 1 proven. 14 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2022-03-15 14:18:10,942 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 14:18:10,942 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1923618039] [2022-03-15 14:18:10,942 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1923618039] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-15 14:18:10,942 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [926190345] [2022-03-15 14:18:10,943 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2022-03-15 14:18:10,943 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-15 14:18:10,943 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-15 14:18:10,944 INFO L229 MonitoredProcess]: Starting monitored process 20 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-03-15 14:18:10,944 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Waiting until timeout for monitored process [2022-03-15 14:18:11,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 14:18:11,131 INFO L263 TraceCheckSpWp]: Trace formula consists of 593 conjuncts, 90 conjunts are in the unsatisfiable core [2022-03-15 14:18:11,150 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-15 14:18:14,344 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-15 14:18:14,345 INFO L387 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 18 treesize of output 20 [2022-03-15 14:18:14,787 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-15 14:18:14,788 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-15 14:18:14,790 INFO L353 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2022-03-15 14:18:14,790 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 41 treesize of output 44 [2022-03-15 14:18:16,634 INFO L353 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-03-15 14:18:16,635 INFO L387 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 2 new quantified variables, introduced 1 case distinctions, treesize of input 46 treesize of output 33 [2022-03-15 14:18:16,669 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 1 proven. 23 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-03-15 14:18:16,669 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-15 14:18:17,694 INFO L353 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-03-15 14:18:17,695 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 185 treesize of output 245 [2022-03-15 14:18:17,715 INFO L353 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-03-15 14:18:17,715 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 106 treesize of output 124 [2022-03-15 14:18:17,721 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 54 treesize of output 42 [2022-03-15 14:18:25,375 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 1 proven. 23 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-03-15 14:18:25,375 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [926190345] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-15 14:18:25,375 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-15 14:18:25,375 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [34, 40, 40] total 104 [2022-03-15 14:18:25,376 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [900149371] [2022-03-15 14:18:25,376 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-03-15 14:18:25,376 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 104 states [2022-03-15 14:18:25,376 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 14:18:25,376 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 104 interpolants. [2022-03-15 14:18:25,377 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=561, Invalid=10148, Unknown=3, NotChecked=0, Total=10712 [2022-03-15 14:18:25,377 INFO L87 Difference]: Start difference. First operand 52713 states and 191201 transitions. Second operand has 104 states, 104 states have (on average 5.846153846153846) internal successors, (608), 104 states have internal predecessors, (608), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Received shutdown request... [2022-03-15 14:18:37,628 WARN L244 SmtUtils]: Removed 5 from assertion stack [2022-03-15 14:18:37,628 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 119 states. [2022-03-15 14:18:37,632 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 640 GetRequests, 420 SyntacticMatches, 3 SemanticMatches, 216 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12564 ImplicationChecksByTransitivity, 15.8s TimeCoverageRelationStatistics Valid=5021, Invalid=42282, Unknown=3, NotChecked=0, Total=47306 [2022-03-15 14:18:37,632 INFO L933 BasicCegarLoop]: 124 mSDtfsCounter, 4289 mSDsluCounter, 6128 mSDsCounter, 0 mSdLazyCounter, 2563 mSolverCounterSat, 394 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4289 SdHoareTripleChecker+Valid, 6252 SdHoareTripleChecker+Invalid, 3312 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 394 IncrementalHoareTripleChecker+Valid, 2563 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 355 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2022-03-15 14:18:37,632 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4289 Valid, 6252 Invalid, 3312 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [394 Valid, 2563 Invalid, 0 Unknown, 355 Unchecked, 1.2s Time] [2022-03-15 14:18:37,633 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (3 of 4 remaining) [2022-03-15 14:18:37,651 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Forceful destruction successful, exit code 0 [2022-03-15 14:18:37,652 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2022-03-15 14:18:37,652 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2022-03-15 14:18:37,834 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27,20 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-15 14:18:37,834 WARN L594 AbstractCegarLoop]: Verification canceled: while BasicCegarLoop was constructing difference of abstraction (52713states) and FLOYD_HOARE automaton (currently 119 states, 104 states before enhancement),while PredicateUnifier was unifying predicates,while SimplifyDDAWithTimeout was simplifying term of DAG size 97 for 77ms.. [2022-03-15 14:18:37,835 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0INUSE_VIOLATION (2 of 4 remaining) [2022-03-15 14:18:37,836 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr1INUSE_VIOLATION (1 of 4 remaining) [2022-03-15 14:18:37,836 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr2INUSE_VIOLATION (0 of 4 remaining) [2022-03-15 14:18:37,838 INFO L732 BasicCegarLoop]: Path program histogram: [19, 3, 2, 1, 1, 1, 1] [2022-03-15 14:18:37,839 INFO L230 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-03-15 14:18:37,839 INFO L180 ceAbstractionStarter]: Computing trace abstraction results [2022-03-15 14:18:37,840 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 15.03 02:18:37 BasicIcfg [2022-03-15 14:18:37,840 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-03-15 14:18:37,840 INFO L158 Benchmark]: Toolchain (without parser) took 753358.54ms. Allocated memory was 190.8MB in the beginning and 3.4GB in the end (delta: 3.3GB). Free memory was 135.2MB in the beginning and 1.6GB in the end (delta: -1.5GB). Peak memory consumption was 1.8GB. Max. memory is 8.0GB. [2022-03-15 14:18:37,841 INFO L158 Benchmark]: CDTParser took 0.10ms. Allocated memory is still 190.8MB. Free memory is still 151.8MB. There was no memory consumed. Max. memory is 8.0GB. [2022-03-15 14:18:37,841 INFO L158 Benchmark]: CACSL2BoogieTranslator took 216.61ms. Allocated memory was 190.8MB in the beginning and 237.0MB in the end (delta: 46.1MB). Free memory was 135.0MB in the beginning and 207.9MB in the end (delta: -72.9MB). Peak memory consumption was 9.2MB. Max. memory is 8.0GB. [2022-03-15 14:18:37,841 INFO L158 Benchmark]: Boogie Procedure Inliner took 29.47ms. Allocated memory is still 237.0MB. Free memory was 207.9MB in the beginning and 204.9MB in the end (delta: 3.0MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. [2022-03-15 14:18:37,841 INFO L158 Benchmark]: Boogie Preprocessor took 40.61ms. Allocated memory is still 237.0MB. Free memory was 204.9MB in the beginning and 202.8MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2022-03-15 14:18:37,841 INFO L158 Benchmark]: RCFGBuilder took 669.95ms. Allocated memory is still 237.0MB. Free memory was 202.8MB in the beginning and 167.6MB in the end (delta: 35.2MB). Peak memory consumption was 35.7MB. Max. memory is 8.0GB. [2022-03-15 14:18:37,841 INFO L158 Benchmark]: TraceAbstraction took 752381.41ms. Allocated memory was 237.0MB in the beginning and 3.4GB in the end (delta: 3.2GB). Free memory was 167.0MB in the beginning and 1.6GB in the end (delta: -1.4GB). Peak memory consumption was 1.8GB. Max. memory is 8.0GB. [2022-03-15 14:18:37,842 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.10ms. Allocated memory is still 190.8MB. Free memory is still 151.8MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 216.61ms. Allocated memory was 190.8MB in the beginning and 237.0MB in the end (delta: 46.1MB). Free memory was 135.0MB in the beginning and 207.9MB in the end (delta: -72.9MB). Peak memory consumption was 9.2MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 29.47ms. Allocated memory is still 237.0MB. Free memory was 207.9MB in the beginning and 204.9MB in the end (delta: 3.0MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 40.61ms. Allocated memory is still 237.0MB. Free memory was 204.9MB in the beginning and 202.8MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * RCFGBuilder took 669.95ms. Allocated memory is still 237.0MB. Free memory was 202.8MB in the beginning and 167.6MB in the end (delta: 35.2MB). Peak memory consumption was 35.7MB. Max. memory is 8.0GB. * TraceAbstraction took 752381.41ms. Allocated memory was 237.0MB in the beginning and 3.4GB in the end (delta: 3.2GB). Free memory was 167.0MB in the beginning and 1.6GB in the end (delta: -1.4GB). Peak memory consumption was 1.8GB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - TimeoutResultAtElement [Line: 150]: Timeout (TraceAbstraction) Unable to prove that call to reach_error is unreachable Cancelled while BasicCegarLoop was constructing difference of abstraction (52713states) and FLOYD_HOARE automaton (currently 119 states, 104 states before enhancement),while PredicateUnifier was unifying predicates,while SimplifyDDAWithTimeout was simplifying term of DAG size 97 for 77ms.. - TimeoutResultAtElement [Line: 143]: Timeout (TraceAbstraction) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Cancelled while BasicCegarLoop was constructing difference of abstraction (52713states) and FLOYD_HOARE automaton (currently 119 states, 104 states before enhancement),while PredicateUnifier was unifying predicates,while SimplifyDDAWithTimeout was simplifying term of DAG size 97 for 77ms.. - TimeoutResultAtElement [Line: 142]: Timeout (TraceAbstraction) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Cancelled while BasicCegarLoop was constructing difference of abstraction (52713states) and FLOYD_HOARE automaton (currently 119 states, 104 states before enhancement),while PredicateUnifier was unifying predicates,while SimplifyDDAWithTimeout was simplifying term of DAG size 97 for 77ms.. - TimeoutResultAtElement [Line: 144]: Timeout (TraceAbstraction) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Cancelled while BasicCegarLoop was constructing difference of abstraction (52713states) and FLOYD_HOARE automaton (currently 119 states, 104 states before enhancement),while PredicateUnifier was unifying predicates,while SimplifyDDAWithTimeout was simplifying term of DAG size 97 for 77ms.. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 7 procedures, 283 locations, 4 error locations. Started 1 CEGAR loops. OverallTime: 752.2s, OverallIterations: 28, TraceHistogramMax: 2, PathProgramHistogramMax: 19, EmptinessCheckTime: 2.2s, AutomataDifference: 351.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.3s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 163069 SdHoareTripleChecker+Valid, 33.4s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 163069 mSDsluCounter, 266034 SdHoareTripleChecker+Invalid, 28.5s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 25271 IncrementalHoareTripleChecker+Unchecked, 272159 mSDsCounter, 10448 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 71788 IncrementalHoareTripleChecker+Invalid, 107507 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 10448 mSolverCounterUnsat, 6915 mSDtfsCounter, 71788 mSolverCounterSat, 0.7s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 13011 GetRequests, 8324 SyntacticMatches, 157 SemanticMatches, 4529 ConstructedPredicates, 0 IntricatePredicates, 1 DeprecatedPredicates, 364870 ImplicationChecksByTransitivity, 383.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=54239occurred in iteration=26, InterpolantAutomatonStates: 2963, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 20.9s AutomataMinimizationTime, 27 MinimizatonAttempts, 213455 StatesRemovedByMinimization, 25 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.5s SsaConstructionTime, 3.6s SatisfiabilityAnalysisTime, 366.4s InterpolantComputationTime, 11252 NumberOfCodeBlocks, 11192 NumberOfCodeBlocksAsserted, 68 NumberOfCheckSat, 15834 ConstructedInterpolants, 847 QuantifiedInterpolants, 315341 SizeOfPredicates, 1037 NumberOfNonLiveVariables, 11044 ConjunctsInSsa, 1558 ConjunctsInUnsatCore, 66 InterpolantComputations, 9 PerfectInterpolantSequences, 446/1388 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 RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown