/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -s ../../../trunk/examples/settings/automizer/mcr/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-McrAutomaton-SP.epf -i ../../../trunk/examples/svcomp/pthread-nondet/nondet-loop-bound-variant-2.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-1d1d2b5 [2020-10-22 02:32:24,333 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-22 02:32:24,336 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-22 02:32:24,375 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-22 02:32:24,375 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-22 02:32:24,382 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-22 02:32:24,385 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-22 02:32:24,389 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-22 02:32:24,391 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-22 02:32:24,394 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-22 02:32:24,395 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-22 02:32:24,396 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-22 02:32:24,396 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-22 02:32:24,399 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-22 02:32:24,401 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-22 02:32:24,403 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-22 02:32:24,404 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-22 02:32:24,405 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-22 02:32:24,406 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-22 02:32:24,414 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-22 02:32:24,416 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-22 02:32:24,418 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-22 02:32:24,419 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-22 02:32:24,419 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-22 02:32:24,432 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-22 02:32:24,432 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-22 02:32:24,432 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-22 02:32:24,434 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-22 02:32:24,435 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-22 02:32:24,437 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-22 02:32:24,437 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-22 02:32:24,438 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-22 02:32:24,439 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-22 02:32:24,440 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-22 02:32:24,441 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-22 02:32:24,441 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-22 02:32:24,441 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-22 02:32:24,442 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-22 02:32:24,442 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-22 02:32:24,444 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-22 02:32:24,445 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-22 02:32:24,446 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/mcr/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-McrAutomaton-SP.epf [2020-10-22 02:32:24,483 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-22 02:32:24,484 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-22 02:32:24,486 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-22 02:32:24,486 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-22 02:32:24,486 INFO L138 SettingsManager]: * Use SBE=true [2020-10-22 02:32:24,486 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-22 02:32:24,487 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-22 02:32:24,487 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-22 02:32:24,487 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-22 02:32:24,488 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-22 02:32:24,488 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-22 02:32:24,489 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-22 02:32:24,489 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-22 02:32:24,489 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-22 02:32:24,489 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-22 02:32:24,489 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-22 02:32:24,490 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-22 02:32:24,490 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-22 02:32:24,490 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-22 02:32:24,490 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-22 02:32:24,490 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-22 02:32:24,491 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-22 02:32:24,491 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-22 02:32:24,491 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=Craig_NestedInterpolation [2020-10-22 02:32:24,491 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-22 02:32:24,491 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-22 02:32:24,492 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-22 02:32:24,492 INFO L138 SettingsManager]: * Override the interpolant automaton setting of the refinement strategy=true [2020-10-22 02:32:24,492 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=VARIABLE_BASED_MOVER_CHECK [2020-10-22 02:32:24,492 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-22 02:32:24,493 INFO L138 SettingsManager]: * Interpolant automaton=MCR [2020-10-22 02:32:24,801 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-22 02:32:24,818 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-22 02:32:24,822 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-22 02:32:24,824 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-22 02:32:24,824 INFO L275 PluginConnector]: CDTParser initialized [2020-10-22 02:32:24,825 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-nondet/nondet-loop-bound-variant-2.i [2020-10-22 02:32:24,892 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bc0479438/8fbade7a38a34f438db3a67453ae5e73/FLAG6017cad8a [2020-10-22 02:32:25,393 INFO L306 CDTParser]: Found 1 translation units. [2020-10-22 02:32:25,395 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-nondet/nondet-loop-bound-variant-2.i [2020-10-22 02:32:25,408 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bc0479438/8fbade7a38a34f438db3a67453ae5e73/FLAG6017cad8a [2020-10-22 02:32:25,702 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bc0479438/8fbade7a38a34f438db3a67453ae5e73 [2020-10-22 02:32:25,711 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-22 02:32:25,718 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2020-10-22 02:32:25,719 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-22 02:32:25,720 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-22 02:32:25,723 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-22 02:32:25,724 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.10 02:32:25" (1/1) ... [2020-10-22 02:32:25,727 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@63bcae3b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 02:32:25, skipping insertion in model container [2020-10-22 02:32:25,727 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.10 02:32:25" (1/1) ... [2020-10-22 02:32:25,735 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-22 02:32:25,774 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-22 02:32:26,279 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-22 02:32:26,295 INFO L203 MainTranslator]: Completed pre-run [2020-10-22 02:32:26,347 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-22 02:32:26,420 INFO L208 MainTranslator]: Completed translation [2020-10-22 02:32:26,421 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 02:32:26 WrapperNode [2020-10-22 02:32:26,421 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-22 02:32:26,422 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-10-22 02:32:26,422 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-10-22 02:32:26,422 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-10-22 02:32:26,431 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 02:32:26" (1/1) ... [2020-10-22 02:32:26,459 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 02:32:26" (1/1) ... [2020-10-22 02:32:26,483 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-10-22 02:32:26,484 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-22 02:32:26,484 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-22 02:32:26,484 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-22 02:32:26,493 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 02:32:26" (1/1) ... [2020-10-22 02:32:26,493 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 02:32:26" (1/1) ... [2020-10-22 02:32:26,496 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 02:32:26" (1/1) ... [2020-10-22 02:32:26,496 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 02:32:26" (1/1) ... [2020-10-22 02:32:26,502 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 02:32:26" (1/1) ... [2020-10-22 02:32:26,507 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 02:32:26" (1/1) ... [2020-10-22 02:32:26,509 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 02:32:26" (1/1) ... [2020-10-22 02:32:26,513 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-22 02:32:26,514 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-22 02:32:26,514 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-22 02:32:26,514 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-22 02:32:26,515 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 02:32:26" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-22 02:32:26,579 INFO L130 BoogieDeclarations]: Found specification of procedure thr2 [2020-10-22 02:32:26,580 INFO L138 BoogieDeclarations]: Found implementation of procedure thr2 [2020-10-22 02:32:26,581 INFO L130 BoogieDeclarations]: Found specification of procedure thr1 [2020-10-22 02:32:26,581 INFO L138 BoogieDeclarations]: Found implementation of procedure thr1 [2020-10-22 02:32:26,581 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-22 02:32:26,582 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2020-10-22 02:32:26,582 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-22 02:32:26,583 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-22 02:32:26,583 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-22 02:32:26,584 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-22 02:32:26,584 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-22 02:32:26,586 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2020-10-22 02:32:26,985 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-22 02:32:26,985 INFO L298 CfgBuilder]: Removed 13 assume(true) statements. [2020-10-22 02:32:26,987 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 02:32:26 BoogieIcfgContainer [2020-10-22 02:32:26,988 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-22 02:32:26,989 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-22 02:32:26,989 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-22 02:32:26,993 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-22 02:32:26,993 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.10 02:32:25" (1/3) ... [2020-10-22 02:32:26,994 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@78fee753 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.10 02:32:26, skipping insertion in model container [2020-10-22 02:32:26,994 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 02:32:26" (2/3) ... [2020-10-22 02:32:26,995 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@78fee753 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.10 02:32:26, skipping insertion in model container [2020-10-22 02:32:26,995 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 02:32:26" (3/3) ... [2020-10-22 02:32:26,997 INFO L111 eAbstractionObserver]: Analyzing ICFG nondet-loop-bound-variant-2.i [2020-10-22 02:32:27,009 WARN L153 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2020-10-22 02:32:27,009 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-22 02:32:27,018 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-22 02:32:27,019 INFO L348 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2020-10-22 02:32:27,049 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:32:27,049 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:32:27,049 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:32:27,050 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:32:27,050 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:32:27,051 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork0_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:32:27,051 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork0_~k~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:32:27,051 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork0_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:32:27,051 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork0_~k~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:32:27,052 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:32:27,052 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:32:27,052 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:32:27,052 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:32:27,053 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:32:27,053 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:32:27,053 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:32:27,054 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:32:27,054 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:32:27,054 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork0_~k~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:32:27,055 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork0_~k~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:32:27,055 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:32:27,056 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:32:27,056 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:32:27,057 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:32:27,057 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:32:27,057 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:32:27,057 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:32:27,058 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:32:27,058 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:32:27,058 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:32:27,058 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:32:27,059 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork1_reach_error_#t~nondet4.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:32:27,059 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork1_reach_error_#t~nondet4.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:32:27,059 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork1_reach_error_#t~nondet4.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:32:27,060 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork1_reach_error_#t~nondet4.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:32:27,064 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork0_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:32:27,064 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:32:27,064 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:32:27,065 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:32:27,065 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork0_~k~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:32:27,065 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:32:27,065 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:32:27,066 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:32:27,066 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:32:27,066 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:32:27,072 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:32:27,072 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:32:27,073 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:32:27,073 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:32:27,073 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork1_reach_error_#t~nondet4.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:32:27,074 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:32:27,074 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork1_reach_error_#t~nondet4.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:32:27,074 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:32:27,076 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2020-10-22 02:32:27,090 INFO L253 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2020-10-22 02:32:27,111 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-22 02:32:27,112 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-22 02:32:27,112 INFO L379 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-22 02:32:27,112 INFO L380 AbstractCegarLoop]: Backedges is MCR [2020-10-22 02:32:27,112 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-22 02:32:27,112 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-22 02:32:27,112 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-22 02:32:27,113 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-22 02:32:27,127 INFO L137 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2020-10-22 02:32:27,128 INFO L144 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 85 places, 85 transitions, 180 flow [2020-10-22 02:32:27,131 INFO L110 LiptonReduction]: Starting Lipton reduction on Petri net that has 85 places, 85 transitions, 180 flow [2020-10-22 02:32:27,133 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 85 places, 85 transitions, 180 flow [2020-10-22 02:32:27,187 INFO L129 PetriNetUnfolder]: 7/95 cut-off events. [2020-10-22 02:32:27,187 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2020-10-22 02:32:27,195 INFO L80 FinitePrefix]: Finished finitePrefix Result has 103 conditions, 95 events. 7/95 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 139 event pairs, 0 based on Foata normal form. 0/85 useless extension candidates. Maximal degree in co-relation 65. Up to 4 conditions per place. [2020-10-22 02:32:27,198 INFO L116 LiptonReduction]: Number of co-enabled transitions 1612 [2020-10-22 02:32:28,870 WARN L193 SmtUtils]: Spent 131.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 57 [2020-10-22 02:32:29,047 WARN L193 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 45 [2020-10-22 02:32:29,864 WARN L193 SmtUtils]: Spent 144.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 46 [2020-10-22 02:32:30,432 WARN L193 SmtUtils]: Spent 503.00 ms on a formula simplification. DAG size of input: 129 DAG size of output: 125 [2020-10-22 02:32:30,647 WARN L193 SmtUtils]: Spent 205.00 ms on a formula simplification that was a NOOP. DAG size: 117 [2020-10-22 02:32:30,649 INFO L131 LiptonReduction]: Checked pairs total: 1592 [2020-10-22 02:32:30,650 INFO L133 LiptonReduction]: Total number of compositions: 94 [2020-10-22 02:32:30,657 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 18 places, 12 transitions, 34 flow [2020-10-22 02:32:30,668 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 44 states. [2020-10-22 02:32:30,670 INFO L276 IsEmpty]: Start isEmpty. Operand 44 states. [2020-10-22 02:32:30,676 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2020-10-22 02:32:30,676 INFO L414 BasicCegarLoop]: Found error trace [2020-10-22 02:32:30,677 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1] [2020-10-22 02:32:30,677 INFO L429 AbstractCegarLoop]: === Iteration 1 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION]=== [2020-10-22 02:32:30,683 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-22 02:32:30,683 INFO L82 PathProgramCache]: Analyzing trace with hash 351577, now seen corresponding path program 1 times [2020-10-22 02:32:30,712 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-22 02:32:30,712 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [457303526] [2020-10-22 02:32:30,712 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-22 02:32:30,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-22 02:32:30,908 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-22 02:32:30,909 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [457303526] [2020-10-22 02:32:30,910 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-22 02:32:30,910 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2020-10-22 02:32:30,911 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [2054989006] [2020-10-22 02:32:30,912 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-22 02:32:30,915 INFO L249 McrAutomatonBuilder]: Started intersection. [2020-10-22 02:32:30,927 INFO L252 McrAutomatonBuilder]: Finished intersection with 4 states and 3 transitions. [2020-10-22 02:32:30,927 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-22 02:32:30,933 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-10-22 02:32:30,934 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-22 02:32:30,935 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-22 02:32:30,953 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-22 02:32:30,954 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-22 02:32:30,955 INFO L87 Difference]: Start difference. First operand 44 states. Second operand 3 states. [2020-10-22 02:32:30,982 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-22 02:32:30,982 INFO L93 Difference]: Finished difference Result 35 states and 59 transitions. [2020-10-22 02:32:30,982 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-22 02:32:30,984 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 3 [2020-10-22 02:32:30,984 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-22 02:32:30,993 INFO L225 Difference]: With dead ends: 35 [2020-10-22 02:32:30,993 INFO L226 Difference]: Without dead ends: 31 [2020-10-22 02:32:30,995 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-22 02:32:31,013 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31 states. [2020-10-22 02:32:31,029 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31 to 31. [2020-10-22 02:32:31,030 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 31 states. [2020-10-22 02:32:31,031 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 51 transitions. [2020-10-22 02:32:31,033 INFO L78 Accepts]: Start accepts. Automaton has 31 states and 51 transitions. Word has length 3 [2020-10-22 02:32:31,033 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-22 02:32:31,033 INFO L481 AbstractCegarLoop]: Abstraction has 31 states and 51 transitions. [2020-10-22 02:32:31,033 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-22 02:32:31,034 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 51 transitions. [2020-10-22 02:32:31,034 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2020-10-22 02:32:31,034 INFO L414 BasicCegarLoop]: Found error trace [2020-10-22 02:32:31,034 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2020-10-22 02:32:31,035 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-22 02:32:31,035 INFO L429 AbstractCegarLoop]: === Iteration 2 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION]=== [2020-10-22 02:32:31,035 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-22 02:32:31,035 INFO L82 PathProgramCache]: Analyzing trace with hash -1769204181, now seen corresponding path program 1 times [2020-10-22 02:32:31,039 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-22 02:32:31,040 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [53824250] [2020-10-22 02:32:31,040 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-22 02:32:31,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-22 02:32:31,149 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-22 02:32:31,149 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [53824250] [2020-10-22 02:32:31,150 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-22 02:32:31,150 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-22 02:32:31,150 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [229727241] [2020-10-22 02:32:31,150 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-22 02:32:31,152 INFO L249 McrAutomatonBuilder]: Started intersection. [2020-10-22 02:32:31,155 INFO L252 McrAutomatonBuilder]: Finished intersection with 8 states and 7 transitions. [2020-10-22 02:32:31,156 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-22 02:32:31,156 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-10-22 02:32:31,158 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-22 02:32:31,158 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-22 02:32:31,158 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-22 02:32:31,159 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-10-22 02:32:31,159 INFO L87 Difference]: Start difference. First operand 31 states and 51 transitions. Second operand 4 states. [2020-10-22 02:32:31,181 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-22 02:32:31,182 INFO L93 Difference]: Finished difference Result 26 states and 42 transitions. [2020-10-22 02:32:31,183 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-22 02:32:31,184 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 7 [2020-10-22 02:32:31,184 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-22 02:32:31,185 INFO L225 Difference]: With dead ends: 26 [2020-10-22 02:32:31,185 INFO L226 Difference]: Without dead ends: 24 [2020-10-22 02:32:31,186 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-10-22 02:32:31,186 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24 states. [2020-10-22 02:32:31,189 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24 to 24. [2020-10-22 02:32:31,190 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 24 states. [2020-10-22 02:32:31,190 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 39 transitions. [2020-10-22 02:32:31,191 INFO L78 Accepts]: Start accepts. Automaton has 24 states and 39 transitions. Word has length 7 [2020-10-22 02:32:31,191 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-22 02:32:31,191 INFO L481 AbstractCegarLoop]: Abstraction has 24 states and 39 transitions. [2020-10-22 02:32:31,191 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-22 02:32:31,191 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 39 transitions. [2020-10-22 02:32:31,192 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2020-10-22 02:32:31,192 INFO L414 BasicCegarLoop]: Found error trace [2020-10-22 02:32:31,192 INFO L422 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1] [2020-10-22 02:32:31,193 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-22 02:32:31,193 INFO L429 AbstractCegarLoop]: === Iteration 3 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION]=== [2020-10-22 02:32:31,193 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-22 02:32:31,193 INFO L82 PathProgramCache]: Analyzing trace with hash 989225069, now seen corresponding path program 1 times [2020-10-22 02:32:31,194 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-22 02:32:31,195 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [803981468] [2020-10-22 02:32:31,195 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-22 02:32:31,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-22 02:32:31,225 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-22 02:32:31,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-22 02:32:31,250 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-22 02:32:31,299 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-22 02:32:31,299 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-10-22 02:32:31,300 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-22 02:32:31,300 WARN L264 etLargeBlockEncoding]: Failed to translate choice composition: Branch encoders not available. [2020-10-22 02:32:31,302 WARN L371 ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis [2020-10-22 02:32:31,303 INFO L348 ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances. [2020-10-22 02:32:31,314 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread2of2ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:32:31,314 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread2of2ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:32:31,314 WARN L313 ript$VariableManager]: TermVariabe thr2Thread2of2ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:32:31,314 WARN L313 ript$VariableManager]: TermVariabe thr2Thread2of2ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:32:31,315 WARN L313 ript$VariableManager]: TermVariabe thr2Thread2of2ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:32:31,315 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread2of2ForFork0_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:32:31,315 WARN L313 ript$VariableManager]: TermVariabe thr2Thread2of2ForFork0_~k~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:32:31,315 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread2of2ForFork0_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:32:31,316 WARN L313 ript$VariableManager]: TermVariabe thr2Thread2of2ForFork0_~k~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:32:31,316 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread2of2ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:32:31,316 WARN L313 ript$VariableManager]: TermVariabe thr2Thread2of2ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:32:31,316 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread2of2ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:32:31,316 WARN L313 ript$VariableManager]: TermVariabe thr2Thread2of2ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:32:31,316 WARN L313 ript$VariableManager]: TermVariabe thr2Thread2of2ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:32:31,317 WARN L313 ript$VariableManager]: TermVariabe thr2Thread2of2ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:32:31,317 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread2of2ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:32:31,317 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread2of2ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:32:31,317 WARN L313 ript$VariableManager]: TermVariabe thr2Thread2of2ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:32:31,317 WARN L313 ript$VariableManager]: TermVariabe thr2Thread2of2ForFork0_~k~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:32:31,318 WARN L313 ript$VariableManager]: TermVariabe thr2Thread2of2ForFork0_~k~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:32:31,318 WARN L313 ript$VariableManager]: TermVariabe thr2Thread2of2ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:32:31,318 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of2ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:32:31,318 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of2ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:32:31,319 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of2ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:32:31,319 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of2ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:32:31,319 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of2ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:32:31,319 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of2ForFork0_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:32:31,319 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of2ForFork0_~k~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:32:31,319 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of2ForFork0_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:32:31,320 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of2ForFork0_~k~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:32:31,320 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of2ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:32:31,320 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of2ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:32:31,320 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of2ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:32:31,320 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of2ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:32:31,320 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of2ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:32:31,321 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of2ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:32:31,321 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of2ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:32:31,321 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of2ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:32:31,321 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of2ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:32:31,321 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of2ForFork0_~k~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:32:31,321 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of2ForFork0_~k~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:32:31,322 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of2ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:32:31,322 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:32:31,323 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:32:31,323 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of2ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:32:31,323 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of2ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:32:31,323 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:32:31,323 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of2ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:32:31,323 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:32:31,324 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of2ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:32:31,324 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of2ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:32:31,324 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of2ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:32:31,324 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork1_reach_error_#t~nondet4.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:32:31,324 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork1_reach_error_#t~nondet4.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:32:31,325 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork1_reach_error_#t~nondet4.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:32:31,325 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork1_reach_error_#t~nondet4.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:32:31,325 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:32:31,325 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:32:31,326 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of2ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:32:31,326 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of2ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:32:31,326 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:32:31,326 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of2ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:32:31,326 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:32:31,326 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of2ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:32:31,327 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of2ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:32:31,327 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of2ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:32:31,327 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork1_reach_error_#t~nondet4.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:32:31,327 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork1_reach_error_#t~nondet4.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:32:31,328 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork1_reach_error_#t~nondet4.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:32:31,328 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork1_reach_error_#t~nondet4.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:32:31,328 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of2ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:32:31,328 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of2ForFork0_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:32:31,329 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of2ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:32:31,329 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of2ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:32:31,329 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of2ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:32:31,329 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of2ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:32:31,329 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of2ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:32:31,329 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of2ForFork0_~k~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:32:31,330 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of2ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:32:31,330 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of2ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:32:31,331 WARN L313 ript$VariableManager]: TermVariabe thr2Thread2of2ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:32:31,331 WARN L313 ript$VariableManager]: TermVariabe thr2Thread2of2ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:32:31,332 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread2of2ForFork0_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:32:31,332 WARN L313 ript$VariableManager]: TermVariabe thr2Thread2of2ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:32:31,332 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread2of2ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:32:31,332 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread2of2ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:32:31,332 WARN L313 ript$VariableManager]: TermVariabe thr2Thread2of2ForFork0_~k~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:32:31,332 WARN L313 ript$VariableManager]: TermVariabe thr2Thread2of2ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:32:31,333 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread2of2ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:32:31,333 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread2of2ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:32:31,335 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:32:31,335 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of2ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:32:31,335 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork1_reach_error_#t~nondet4.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:32:31,335 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork1_reach_error_#t~nondet4.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:32:31,336 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of2ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:32:31,336 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:32:31,336 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of2ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:32:31,336 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:32:31,338 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:32:31,338 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of2ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:32:31,338 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork1_reach_error_#t~nondet4.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:32:31,338 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork1_reach_error_#t~nondet4.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:32:31,339 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:32:31,339 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of2ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:32:31,339 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:32:31,339 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of2ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:32:31,341 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2020-10-22 02:32:31,341 INFO L253 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2020-10-22 02:32:31,341 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-22 02:32:31,341 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-22 02:32:31,342 INFO L379 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-22 02:32:31,342 INFO L380 AbstractCegarLoop]: Backedges is MCR [2020-10-22 02:32:31,342 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-22 02:32:31,342 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-22 02:32:31,342 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-22 02:32:31,342 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-22 02:32:31,346 INFO L137 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2020-10-22 02:32:31,346 INFO L144 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 119 places, 119 transitions, 262 flow [2020-10-22 02:32:31,346 INFO L110 LiptonReduction]: Starting Lipton reduction on Petri net that has 119 places, 119 transitions, 262 flow [2020-10-22 02:32:31,346 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 119 places, 119 transitions, 262 flow [2020-10-22 02:32:31,385 INFO L129 PetriNetUnfolder]: 10/129 cut-off events. [2020-10-22 02:32:31,386 INFO L130 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2020-10-22 02:32:31,391 INFO L80 FinitePrefix]: Finished finitePrefix Result has 143 conditions, 129 events. 10/129 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 250 event pairs, 0 based on Foata normal form. 0/115 useless extension candidates. Maximal degree in co-relation 138. Up to 6 conditions per place. [2020-10-22 02:32:31,397 INFO L116 LiptonReduction]: Number of co-enabled transitions 3404 [2020-10-22 02:32:33,593 WARN L193 SmtUtils]: Spent 164.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 77 [2020-10-22 02:32:34,032 WARN L193 SmtUtils]: Spent 155.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 58 [2020-10-22 02:32:34,321 WARN L193 SmtUtils]: Spent 211.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 87 [2020-10-22 02:32:34,904 WARN L193 SmtUtils]: Spent 471.00 ms on a formula simplification. DAG size of input: 129 DAG size of output: 125 [2020-10-22 02:32:35,147 WARN L193 SmtUtils]: Spent 235.00 ms on a formula simplification that was a NOOP. DAG size: 117 [2020-10-22 02:32:35,153 INFO L131 LiptonReduction]: Checked pairs total: 4884 [2020-10-22 02:32:35,156 INFO L133 LiptonReduction]: Total number of compositions: 123 [2020-10-22 02:32:35,157 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 35 places, 27 transitions, 78 flow [2020-10-22 02:32:35,188 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 542 states. [2020-10-22 02:32:35,188 INFO L276 IsEmpty]: Start isEmpty. Operand 542 states. [2020-10-22 02:32:35,189 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2020-10-22 02:32:35,189 INFO L414 BasicCegarLoop]: Found error trace [2020-10-22 02:32:35,189 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1] [2020-10-22 02:32:35,189 INFO L429 AbstractCegarLoop]: === Iteration 1 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-22 02:32:35,190 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-22 02:32:35,190 INFO L82 PathProgramCache]: Analyzing trace with hash 624708, now seen corresponding path program 1 times [2020-10-22 02:32:35,191 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-22 02:32:35,191 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1298893062] [2020-10-22 02:32:35,191 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-22 02:32:35,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-22 02:32:35,241 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-22 02:32:35,241 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1298893062] [2020-10-22 02:32:35,242 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-22 02:32:35,242 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2020-10-22 02:32:35,242 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1128676641] [2020-10-22 02:32:35,242 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-22 02:32:35,243 INFO L249 McrAutomatonBuilder]: Started intersection. [2020-10-22 02:32:35,243 INFO L252 McrAutomatonBuilder]: Finished intersection with 4 states and 3 transitions. [2020-10-22 02:32:35,244 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-22 02:32:35,244 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-10-22 02:32:35,244 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-22 02:32:35,244 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-22 02:32:35,245 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-22 02:32:35,245 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-22 02:32:35,245 INFO L87 Difference]: Start difference. First operand 542 states. Second operand 3 states. [2020-10-22 02:32:35,303 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-22 02:32:35,304 INFO L93 Difference]: Finished difference Result 562 states and 1722 transitions. [2020-10-22 02:32:35,304 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-22 02:32:35,304 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 3 [2020-10-22 02:32:35,305 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-22 02:32:35,316 INFO L225 Difference]: With dead ends: 562 [2020-10-22 02:32:35,316 INFO L226 Difference]: Without dead ends: 520 [2020-10-22 02:32:35,317 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-22 02:32:35,327 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 520 states. [2020-10-22 02:32:35,384 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 520 to 481. [2020-10-22 02:32:35,385 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 481 states. [2020-10-22 02:32:35,390 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 481 states to 481 states and 1503 transitions. [2020-10-22 02:32:35,390 INFO L78 Accepts]: Start accepts. Automaton has 481 states and 1503 transitions. Word has length 3 [2020-10-22 02:32:35,390 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-22 02:32:35,390 INFO L481 AbstractCegarLoop]: Abstraction has 481 states and 1503 transitions. [2020-10-22 02:32:35,390 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-22 02:32:35,391 INFO L276 IsEmpty]: Start isEmpty. Operand 481 states and 1503 transitions. [2020-10-22 02:32:35,391 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-10-22 02:32:35,391 INFO L414 BasicCegarLoop]: Found error trace [2020-10-22 02:32:35,392 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-22 02:32:35,392 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-22 02:32:35,392 INFO L429 AbstractCegarLoop]: === Iteration 2 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-22 02:32:35,392 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-22 02:32:35,393 INFO L82 PathProgramCache]: Analyzing trace with hash -140345372, now seen corresponding path program 1 times [2020-10-22 02:32:35,395 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-22 02:32:35,395 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [652993208] [2020-10-22 02:32:35,395 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-22 02:32:35,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-22 02:32:35,464 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-22 02:32:35,465 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [652993208] [2020-10-22 02:32:35,465 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-22 02:32:35,465 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-22 02:32:35,465 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [883254228] [2020-10-22 02:32:35,466 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-22 02:32:35,467 INFO L249 McrAutomatonBuilder]: Started intersection. [2020-10-22 02:32:35,470 INFO L252 McrAutomatonBuilder]: Finished intersection with 11 states and 10 transitions. [2020-10-22 02:32:35,470 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-22 02:32:35,470 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-10-22 02:32:35,471 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-22 02:32:35,471 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-22 02:32:35,471 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-22 02:32:35,471 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-22 02:32:35,472 INFO L87 Difference]: Start difference. First operand 481 states and 1503 transitions. Second operand 5 states. [2020-10-22 02:32:35,616 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-22 02:32:35,617 INFO L93 Difference]: Finished difference Result 644 states and 1865 transitions. [2020-10-22 02:32:35,617 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-22 02:32:35,617 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 10 [2020-10-22 02:32:35,618 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-22 02:32:35,628 INFO L225 Difference]: With dead ends: 644 [2020-10-22 02:32:35,628 INFO L226 Difference]: Without dead ends: 632 [2020-10-22 02:32:35,629 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-10-22 02:32:35,641 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 632 states. [2020-10-22 02:32:35,663 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 632 to 432. [2020-10-22 02:32:35,663 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 432 states. [2020-10-22 02:32:35,666 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 432 states to 432 states and 1372 transitions. [2020-10-22 02:32:35,666 INFO L78 Accepts]: Start accepts. Automaton has 432 states and 1372 transitions. Word has length 10 [2020-10-22 02:32:35,667 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-22 02:32:35,667 INFO L481 AbstractCegarLoop]: Abstraction has 432 states and 1372 transitions. [2020-10-22 02:32:35,667 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-22 02:32:35,668 INFO L276 IsEmpty]: Start isEmpty. Operand 432 states and 1372 transitions. [2020-10-22 02:32:35,669 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2020-10-22 02:32:35,669 INFO L414 BasicCegarLoop]: Found error trace [2020-10-22 02:32:35,669 INFO L422 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-22 02:32:35,670 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-22 02:32:35,670 INFO L429 AbstractCegarLoop]: === Iteration 3 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-22 02:32:35,670 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-22 02:32:35,670 INFO L82 PathProgramCache]: Analyzing trace with hash 775291849, now seen corresponding path program 1 times [2020-10-22 02:32:35,671 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-22 02:32:35,672 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [105783219] [2020-10-22 02:32:35,672 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-22 02:32:35,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-22 02:32:35,751 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-10-22 02:32:35,751 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [105783219] [2020-10-22 02:32:35,751 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-22 02:32:35,752 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-22 02:32:35,752 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [189224440] [2020-10-22 02:32:35,752 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-22 02:32:35,754 INFO L249 McrAutomatonBuilder]: Started intersection. [2020-10-22 02:32:35,757 INFO L252 McrAutomatonBuilder]: Finished intersection with 15 states and 14 transitions. [2020-10-22 02:32:35,757 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-22 02:32:35,758 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-10-22 02:32:35,758 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-22 02:32:35,758 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-22 02:32:35,758 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-22 02:32:35,759 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-22 02:32:35,759 INFO L87 Difference]: Start difference. First operand 432 states and 1372 transitions. Second operand 5 states. [2020-10-22 02:32:35,866 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-22 02:32:35,866 INFO L93 Difference]: Finished difference Result 606 states and 1742 transitions. [2020-10-22 02:32:35,867 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-22 02:32:35,867 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 14 [2020-10-22 02:32:35,867 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-22 02:32:35,872 INFO L225 Difference]: With dead ends: 606 [2020-10-22 02:32:35,872 INFO L226 Difference]: Without dead ends: 594 [2020-10-22 02:32:35,873 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-10-22 02:32:35,875 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 594 states. [2020-10-22 02:32:35,891 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 594 to 412. [2020-10-22 02:32:35,891 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 412 states. [2020-10-22 02:32:35,893 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 412 states to 412 states and 1273 transitions. [2020-10-22 02:32:35,894 INFO L78 Accepts]: Start accepts. Automaton has 412 states and 1273 transitions. Word has length 14 [2020-10-22 02:32:35,894 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-22 02:32:35,894 INFO L481 AbstractCegarLoop]: Abstraction has 412 states and 1273 transitions. [2020-10-22 02:32:35,894 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-22 02:32:35,895 INFO L276 IsEmpty]: Start isEmpty. Operand 412 states and 1273 transitions. [2020-10-22 02:32:35,896 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2020-10-22 02:32:35,896 INFO L414 BasicCegarLoop]: Found error trace [2020-10-22 02:32:35,897 INFO L422 BasicCegarLoop]: trace histogram [3, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2020-10-22 02:32:35,897 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-22 02:32:35,897 INFO L429 AbstractCegarLoop]: === Iteration 4 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-22 02:32:35,897 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-22 02:32:35,897 INFO L82 PathProgramCache]: Analyzing trace with hash 768536188, now seen corresponding path program 1 times [2020-10-22 02:32:35,899 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-22 02:32:35,899 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [166694432] [2020-10-22 02:32:35,899 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-22 02:32:35,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-22 02:32:35,920 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-22 02:32:35,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-22 02:32:35,953 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-22 02:32:35,967 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-22 02:32:35,968 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-10-22 02:32:35,968 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-22 02:32:35,969 WARN L264 etLargeBlockEncoding]: Failed to translate choice composition: Branch encoders not available. [2020-10-22 02:32:35,969 WARN L371 ceAbstractionStarter]: 2 thread instances were not sufficient, I will increase this number and restart the analysis [2020-10-22 02:32:35,970 INFO L348 ceAbstractionStarter]: Constructing petrified ICFG for 3 thread instances. [2020-10-22 02:32:35,987 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of3ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:32:35,987 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of3ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:32:35,988 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:32:35,988 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:32:35,988 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of3ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:32:35,988 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of3ForFork0_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:32:35,988 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of3ForFork0_~k~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:32:35,988 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of3ForFork0_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:32:35,989 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of3ForFork0_~k~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:32:35,989 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of3ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:32:35,992 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of3ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:32:35,992 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of3ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:32:35,992 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of3ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:32:35,993 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of3ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:32:35,993 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of3ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:32:35,993 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of3ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:32:35,993 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of3ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:32:35,993 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of3ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:32:35,993 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of3ForFork0_~k~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:32:35,993 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of3ForFork0_~k~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:32:35,993 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of3ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:32:35,994 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread2of3ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:32:35,994 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread2of3ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:32:35,994 WARN L313 ript$VariableManager]: TermVariabe thr2Thread2of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:32:35,994 WARN L313 ript$VariableManager]: TermVariabe thr2Thread2of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:32:35,994 WARN L313 ript$VariableManager]: TermVariabe thr2Thread2of3ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:32:35,994 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread2of3ForFork0_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:32:35,994 WARN L313 ript$VariableManager]: TermVariabe thr2Thread2of3ForFork0_~k~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:32:35,995 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread2of3ForFork0_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:32:35,995 WARN L313 ript$VariableManager]: TermVariabe thr2Thread2of3ForFork0_~k~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:32:35,995 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread2of3ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:32:35,995 WARN L313 ript$VariableManager]: TermVariabe thr2Thread2of3ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:32:35,995 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread2of3ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:32:35,995 WARN L313 ript$VariableManager]: TermVariabe thr2Thread2of3ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:32:35,996 WARN L313 ript$VariableManager]: TermVariabe thr2Thread2of3ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:32:35,996 WARN L313 ript$VariableManager]: TermVariabe thr2Thread2of3ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:32:35,996 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread2of3ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:32:35,996 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread2of3ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:32:35,996 WARN L313 ript$VariableManager]: TermVariabe thr2Thread2of3ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:32:35,997 WARN L313 ript$VariableManager]: TermVariabe thr2Thread2of3ForFork0_~k~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:32:35,997 WARN L313 ript$VariableManager]: TermVariabe thr2Thread2of3ForFork0_~k~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:32:35,997 WARN L313 ript$VariableManager]: TermVariabe thr2Thread2of3ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:32:35,998 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread3of3ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:32:35,998 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread3of3ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:32:35,998 WARN L313 ript$VariableManager]: TermVariabe thr2Thread3of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:32:35,998 WARN L313 ript$VariableManager]: TermVariabe thr2Thread3of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:32:35,998 WARN L313 ript$VariableManager]: TermVariabe thr2Thread3of3ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:32:35,999 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread3of3ForFork0_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:32:35,999 WARN L313 ript$VariableManager]: TermVariabe thr2Thread3of3ForFork0_~k~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:32:35,999 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread3of3ForFork0_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:32:35,999 WARN L313 ript$VariableManager]: TermVariabe thr2Thread3of3ForFork0_~k~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:32:35,999 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread3of3ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:32:35,999 WARN L313 ript$VariableManager]: TermVariabe thr2Thread3of3ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:32:36,000 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread3of3ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:32:36,000 WARN L313 ript$VariableManager]: TermVariabe thr2Thread3of3ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:32:36,000 WARN L313 ript$VariableManager]: TermVariabe thr2Thread3of3ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:32:36,000 WARN L313 ript$VariableManager]: TermVariabe thr2Thread3of3ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:32:36,000 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread3of3ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:32:36,000 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread3of3ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:32:36,001 WARN L313 ript$VariableManager]: TermVariabe thr2Thread3of3ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:32:36,001 WARN L313 ript$VariableManager]: TermVariabe thr2Thread3of3ForFork0_~k~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:32:36,001 WARN L313 ript$VariableManager]: TermVariabe thr2Thread3of3ForFork0_~k~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:32:36,001 WARN L313 ript$VariableManager]: TermVariabe thr2Thread3of3ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:32:36,002 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:32:36,002 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:32:36,002 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of3ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:32:36,002 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of3ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:32:36,003 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:32:36,003 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of3ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:32:36,003 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:32:36,003 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of3ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:32:36,003 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of3ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:32:36,003 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of3ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:32:36,003 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork1_reach_error_#t~nondet4.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:32:36,004 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork1_reach_error_#t~nondet4.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:32:36,004 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork1_reach_error_#t~nondet4.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:32:36,004 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork1_reach_error_#t~nondet4.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:32:36,004 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:32:36,004 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:32:36,004 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of3ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:32:36,005 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of3ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:32:36,005 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:32:36,005 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of3ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:32:36,005 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:32:36,005 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of3ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:32:36,005 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of3ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:32:36,006 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of3ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:32:36,006 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork1_reach_error_#t~nondet4.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:32:36,006 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork1_reach_error_#t~nondet4.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:32:36,006 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork1_reach_error_#t~nondet4.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:32:36,006 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork1_reach_error_#t~nondet4.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:32:36,007 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:32:36,007 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:32:36,007 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of3ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:32:36,008 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of3ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:32:36,008 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:32:36,008 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of3ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:32:36,008 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:32:36,008 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of3ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:32:36,008 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of3ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:32:36,009 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of3ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:32:36,009 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork1_reach_error_#t~nondet4.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:32:36,009 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork1_reach_error_#t~nondet4.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:32:36,009 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork1_reach_error_#t~nondet4.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:32:36,009 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork1_reach_error_#t~nondet4.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:32:36,010 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:32:36,010 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:32:36,010 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of3ForFork0_~k~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:32:36,010 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of3ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:32:36,010 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of3ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:32:36,010 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of3ForFork0_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:32:36,011 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:32:36,011 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:32:36,011 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of3ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:32:36,011 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of3ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:32:36,013 WARN L313 ript$VariableManager]: TermVariabe thr2Thread2of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:32:36,013 WARN L313 ript$VariableManager]: TermVariabe thr2Thread2of3ForFork0_~k~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:32:36,013 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread2of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:32:36,013 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread2of3ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:32:36,013 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread2of3ForFork0_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:32:36,014 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread2of3ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:32:36,014 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread2of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:32:36,014 WARN L313 ript$VariableManager]: TermVariabe thr2Thread2of3ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:32:36,014 WARN L313 ript$VariableManager]: TermVariabe thr2Thread2of3ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:32:36,014 WARN L313 ript$VariableManager]: TermVariabe thr2Thread2of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:32:36,016 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread3of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:32:36,016 WARN L313 ript$VariableManager]: TermVariabe thr2Thread3of3ForFork0_~k~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:32:36,016 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread3of3ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:32:36,017 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread3of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:32:36,017 WARN L313 ript$VariableManager]: TermVariabe thr2Thread3of3ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:32:36,017 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread3of3ForFork0_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:32:36,017 WARN L313 ript$VariableManager]: TermVariabe thr2Thread3of3ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:32:36,017 WARN L313 ript$VariableManager]: TermVariabe thr2Thread3of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:32:36,017 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread3of3ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:32:36,018 WARN L313 ript$VariableManager]: TermVariabe thr2Thread3of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:32:36,021 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:32:36,021 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of3ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:32:36,021 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:32:36,022 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of3ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:32:36,022 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork1_reach_error_#t~nondet4.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:32:36,022 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:32:36,022 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork1_reach_error_#t~nondet4.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:32:36,022 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of3ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:32:36,024 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of3ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:32:36,024 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:32:36,025 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of3ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:32:36,025 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork1_reach_error_#t~nondet4.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:32:36,025 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:32:36,025 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:32:36,025 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of3ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:32:36,025 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork1_reach_error_#t~nondet4.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:32:36,027 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of3ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:32:36,027 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:32:36,027 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:32:36,027 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork1_reach_error_#t~nondet4.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:32:36,028 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of3ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:32:36,028 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:32:36,028 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of3ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:32:36,028 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork1_reach_error_#t~nondet4.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:32:36,029 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2020-10-22 02:32:36,030 INFO L253 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2020-10-22 02:32:36,030 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-22 02:32:36,030 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-22 02:32:36,030 INFO L379 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-22 02:32:36,030 INFO L380 AbstractCegarLoop]: Backedges is MCR [2020-10-22 02:32:36,030 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-22 02:32:36,030 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-22 02:32:36,031 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-22 02:32:36,031 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-22 02:32:36,036 INFO L137 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2020-10-22 02:32:36,036 INFO L144 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 153 places, 153 transitions, 348 flow [2020-10-22 02:32:36,036 INFO L110 LiptonReduction]: Starting Lipton reduction on Petri net that has 153 places, 153 transitions, 348 flow [2020-10-22 02:32:36,036 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 153 places, 153 transitions, 348 flow [2020-10-22 02:32:36,097 INFO L129 PetriNetUnfolder]: 13/163 cut-off events. [2020-10-22 02:32:36,097 INFO L130 PetriNetUnfolder]: For 7/7 co-relation queries the response was YES. [2020-10-22 02:32:36,102 INFO L80 FinitePrefix]: Finished finitePrefix Result has 184 conditions, 163 events. 13/163 cut-off events. For 7/7 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 352 event pairs, 0 based on Foata normal form. 0/145 useless extension candidates. Maximal degree in co-relation 177. Up to 8 conditions per place. [2020-10-22 02:32:36,111 INFO L116 LiptonReduction]: Number of co-enabled transitions 5880 [2020-10-22 02:32:38,644 WARN L193 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 59 [2020-10-22 02:32:39,310 WARN L193 SmtUtils]: Spent 383.00 ms on a formula simplification. DAG size of input: 113 DAG size of output: 109 [2020-10-22 02:32:39,490 WARN L193 SmtUtils]: Spent 177.00 ms on a formula simplification that was a NOOP. DAG size: 105 [2020-10-22 02:32:39,825 WARN L193 SmtUtils]: Spent 305.00 ms on a formula simplification that was a NOOP. DAG size: 125 [2020-10-22 02:32:40,258 WARN L193 SmtUtils]: Spent 428.00 ms on a formula simplification. DAG size of input: 120 DAG size of output: 117 [2020-10-22 02:32:40,273 INFO L131 LiptonReduction]: Checked pairs total: 10116 [2020-10-22 02:32:40,273 INFO L133 LiptonReduction]: Total number of compositions: 168 [2020-10-22 02:32:40,273 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 49 places, 38 transitions, 118 flow [2020-10-22 02:32:40,536 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 3887 states. [2020-10-22 02:32:40,536 INFO L276 IsEmpty]: Start isEmpty. Operand 3887 states. [2020-10-22 02:32:40,536 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2020-10-22 02:32:40,537 INFO L414 BasicCegarLoop]: Found error trace [2020-10-22 02:32:40,537 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1] [2020-10-22 02:32:40,537 INFO L429 AbstractCegarLoop]: === Iteration 1 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-22 02:32:40,537 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-22 02:32:40,537 INFO L82 PathProgramCache]: Analyzing trace with hash 975796, now seen corresponding path program 1 times [2020-10-22 02:32:40,543 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-22 02:32:40,543 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [622153348] [2020-10-22 02:32:40,543 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-22 02:32:40,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-22 02:32:40,568 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-22 02:32:40,569 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [622153348] [2020-10-22 02:32:40,569 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-22 02:32:40,569 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2020-10-22 02:32:40,570 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [758516234] [2020-10-22 02:32:40,570 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-22 02:32:40,570 INFO L249 McrAutomatonBuilder]: Started intersection. [2020-10-22 02:32:40,571 INFO L252 McrAutomatonBuilder]: Finished intersection with 4 states and 3 transitions. [2020-10-22 02:32:40,571 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-22 02:32:40,571 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-10-22 02:32:40,571 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-22 02:32:40,572 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-22 02:32:40,572 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-22 02:32:40,572 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-22 02:32:40,572 INFO L87 Difference]: Start difference. First operand 3887 states. Second operand 3 states. [2020-10-22 02:32:40,684 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-22 02:32:40,684 INFO L93 Difference]: Finished difference Result 4218 states and 17234 transitions. [2020-10-22 02:32:40,685 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-22 02:32:40,685 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 3 [2020-10-22 02:32:40,685 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-22 02:32:40,726 INFO L225 Difference]: With dead ends: 4218 [2020-10-22 02:32:40,726 INFO L226 Difference]: Without dead ends: 3922 [2020-10-22 02:32:40,727 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-22 02:32:40,768 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3922 states. [2020-10-22 02:32:40,898 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3922 to 3622. [2020-10-22 02:32:40,898 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3622 states. [2020-10-22 02:32:40,928 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3622 states to 3622 states and 15019 transitions. [2020-10-22 02:32:40,928 INFO L78 Accepts]: Start accepts. Automaton has 3622 states and 15019 transitions. Word has length 3 [2020-10-22 02:32:40,928 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-22 02:32:40,929 INFO L481 AbstractCegarLoop]: Abstraction has 3622 states and 15019 transitions. [2020-10-22 02:32:40,929 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-22 02:32:40,929 INFO L276 IsEmpty]: Start isEmpty. Operand 3622 states and 15019 transitions. [2020-10-22 02:32:40,930 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-10-22 02:32:40,930 INFO L414 BasicCegarLoop]: Found error trace [2020-10-22 02:32:40,930 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-22 02:32:40,930 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-22 02:32:40,930 INFO L429 AbstractCegarLoop]: === Iteration 2 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-22 02:32:40,931 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-22 02:32:40,931 INFO L82 PathProgramCache]: Analyzing trace with hash -185496882, now seen corresponding path program 1 times [2020-10-22 02:32:40,932 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-22 02:32:40,932 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1024263669] [2020-10-22 02:32:40,933 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-22 02:32:40,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-22 02:32:41,011 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-22 02:32:41,012 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1024263669] [2020-10-22 02:32:41,012 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-22 02:32:41,012 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-22 02:32:41,012 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1770338423] [2020-10-22 02:32:41,012 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-22 02:32:41,014 INFO L249 McrAutomatonBuilder]: Started intersection. [2020-10-22 02:32:41,015 INFO L252 McrAutomatonBuilder]: Finished intersection with 11 states and 10 transitions. [2020-10-22 02:32:41,015 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-22 02:32:41,016 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-10-22 02:32:41,016 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-22 02:32:41,017 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-22 02:32:41,017 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-22 02:32:41,019 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-22 02:32:41,020 INFO L87 Difference]: Start difference. First operand 3622 states and 15019 transitions. Second operand 5 states. [2020-10-22 02:32:41,264 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-22 02:32:41,264 INFO L93 Difference]: Finished difference Result 5732 states and 22122 transitions. [2020-10-22 02:32:41,265 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-22 02:32:41,265 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 10 [2020-10-22 02:32:41,265 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-22 02:32:41,322 INFO L225 Difference]: With dead ends: 5732 [2020-10-22 02:32:41,322 INFO L226 Difference]: Without dead ends: 5697 [2020-10-22 02:32:41,323 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-10-22 02:32:41,368 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5697 states. [2020-10-22 02:32:41,599 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5697 to 3602. [2020-10-22 02:32:41,599 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3602 states. [2020-10-22 02:32:41,625 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3602 states to 3602 states and 14997 transitions. [2020-10-22 02:32:41,625 INFO L78 Accepts]: Start accepts. Automaton has 3602 states and 14997 transitions. Word has length 10 [2020-10-22 02:32:41,626 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-22 02:32:41,626 INFO L481 AbstractCegarLoop]: Abstraction has 3602 states and 14997 transitions. [2020-10-22 02:32:41,626 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-22 02:32:41,626 INFO L276 IsEmpty]: Start isEmpty. Operand 3602 states and 14997 transitions. [2020-10-22 02:32:41,632 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2020-10-22 02:32:41,633 INFO L414 BasicCegarLoop]: Found error trace [2020-10-22 02:32:41,633 INFO L422 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-22 02:32:41,633 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-10-22 02:32:41,633 INFO L429 AbstractCegarLoop]: === Iteration 3 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-22 02:32:41,633 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-22 02:32:41,633 INFO L82 PathProgramCache]: Analyzing trace with hash -454320612, now seen corresponding path program 1 times [2020-10-22 02:32:41,634 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-22 02:32:41,635 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [251131748] [2020-10-22 02:32:41,635 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-22 02:32:41,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-22 02:32:41,705 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-10-22 02:32:41,705 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [251131748] [2020-10-22 02:32:41,705 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-22 02:32:41,706 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-22 02:32:41,706 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [778359134] [2020-10-22 02:32:41,706 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-22 02:32:41,708 INFO L249 McrAutomatonBuilder]: Started intersection. [2020-10-22 02:32:41,710 INFO L252 McrAutomatonBuilder]: Finished intersection with 15 states and 14 transitions. [2020-10-22 02:32:41,710 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-22 02:32:41,711 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-10-22 02:32:41,711 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-22 02:32:41,711 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-22 02:32:41,711 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-22 02:32:41,712 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-22 02:32:41,712 INFO L87 Difference]: Start difference. First operand 3602 states and 14997 transitions. Second operand 5 states. [2020-10-22 02:32:41,946 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-22 02:32:41,946 INFO L93 Difference]: Finished difference Result 5881 states and 22660 transitions. [2020-10-22 02:32:41,947 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-22 02:32:41,947 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 14 [2020-10-22 02:32:41,947 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-22 02:32:41,990 INFO L225 Difference]: With dead ends: 5881 [2020-10-22 02:32:41,990 INFO L226 Difference]: Without dead ends: 5837 [2020-10-22 02:32:41,990 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-10-22 02:32:42,031 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5837 states. [2020-10-22 02:32:42,166 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5837 to 3670. [2020-10-22 02:32:42,167 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3670 states. [2020-10-22 02:32:42,191 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3670 states to 3670 states and 15200 transitions. [2020-10-22 02:32:42,191 INFO L78 Accepts]: Start accepts. Automaton has 3670 states and 15200 transitions. Word has length 14 [2020-10-22 02:32:42,192 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-22 02:32:42,192 INFO L481 AbstractCegarLoop]: Abstraction has 3670 states and 15200 transitions. [2020-10-22 02:32:42,192 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-22 02:32:42,192 INFO L276 IsEmpty]: Start isEmpty. Operand 3670 states and 15200 transitions. [2020-10-22 02:32:42,194 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-10-22 02:32:42,194 INFO L414 BasicCegarLoop]: Found error trace [2020-10-22 02:32:42,194 INFO L422 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-22 02:32:42,194 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-10-22 02:32:42,194 INFO L429 AbstractCegarLoop]: === Iteration 4 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-22 02:32:42,194 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-22 02:32:42,195 INFO L82 PathProgramCache]: Analyzing trace with hash 436381913, now seen corresponding path program 1 times [2020-10-22 02:32:42,196 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-22 02:32:42,196 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1174321727] [2020-10-22 02:32:42,196 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-22 02:32:42,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-22 02:32:42,227 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-22 02:32:42,228 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1174321727] [2020-10-22 02:32:42,228 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-22 02:32:42,228 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-22 02:32:42,228 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1491219631] [2020-10-22 02:32:42,228 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-22 02:32:42,231 INFO L249 McrAutomatonBuilder]: Started intersection. [2020-10-22 02:32:42,238 INFO L252 McrAutomatonBuilder]: Finished intersection with 22 states and 25 transitions. [2020-10-22 02:32:42,238 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-22 02:32:42,262 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-10-22 02:32:42,263 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-22 02:32:42,263 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-22 02:32:42,263 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-22 02:32:42,263 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-22 02:32:42,263 INFO L87 Difference]: Start difference. First operand 3670 states and 15200 transitions. Second operand 3 states. [2020-10-22 02:32:42,296 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-22 02:32:42,296 INFO L93 Difference]: Finished difference Result 1268 states and 3457 transitions. [2020-10-22 02:32:42,296 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-22 02:32:42,297 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 17 [2020-10-22 02:32:42,297 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-22 02:32:42,302 INFO L225 Difference]: With dead ends: 1268 [2020-10-22 02:32:42,302 INFO L226 Difference]: Without dead ends: 1268 [2020-10-22 02:32:42,303 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-22 02:32:42,313 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1268 states. [2020-10-22 02:32:42,338 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1268 to 1268. [2020-10-22 02:32:42,339 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1268 states. [2020-10-22 02:32:42,344 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1268 states to 1268 states and 3457 transitions. [2020-10-22 02:32:42,344 INFO L78 Accepts]: Start accepts. Automaton has 1268 states and 3457 transitions. Word has length 17 [2020-10-22 02:32:42,345 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-22 02:32:42,345 INFO L481 AbstractCegarLoop]: Abstraction has 1268 states and 3457 transitions. [2020-10-22 02:32:42,345 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-22 02:32:42,345 INFO L276 IsEmpty]: Start isEmpty. Operand 1268 states and 3457 transitions. [2020-10-22 02:32:42,346 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2020-10-22 02:32:42,346 INFO L414 BasicCegarLoop]: Found error trace [2020-10-22 02:32:42,346 INFO L422 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-22 02:32:42,347 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-10-22 02:32:42,347 INFO L429 AbstractCegarLoop]: === Iteration 5 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-22 02:32:42,347 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-22 02:32:42,347 INFO L82 PathProgramCache]: Analyzing trace with hash -728076296, now seen corresponding path program 1 times [2020-10-22 02:32:42,348 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-22 02:32:42,348 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1736242171] [2020-10-22 02:32:42,349 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-22 02:32:42,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-22 02:32:42,415 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-10-22 02:32:42,415 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1736242171] [2020-10-22 02:32:42,415 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-22 02:32:42,416 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-22 02:32:42,416 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1050768840] [2020-10-22 02:32:42,416 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-22 02:32:42,419 INFO L249 McrAutomatonBuilder]: Started intersection. [2020-10-22 02:32:42,426 INFO L252 McrAutomatonBuilder]: Finished intersection with 35 states and 50 transitions. [2020-10-22 02:32:42,426 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-22 02:32:42,655 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-10-22 02:32:42,655 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-22 02:32:42,655 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-22 02:32:42,656 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-22 02:32:42,656 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-22 02:32:42,656 INFO L87 Difference]: Start difference. First operand 1268 states and 3457 transitions. Second operand 7 states. [2020-10-22 02:32:42,976 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-22 02:32:42,976 INFO L93 Difference]: Finished difference Result 1977 states and 5048 transitions. [2020-10-22 02:32:42,977 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-10-22 02:32:42,977 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 18 [2020-10-22 02:32:42,977 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-22 02:32:42,983 INFO L225 Difference]: With dead ends: 1977 [2020-10-22 02:32:42,983 INFO L226 Difference]: Without dead ends: 1961 [2020-10-22 02:32:42,984 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 14 SyntacticMatches, 2 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 28 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=72, Invalid=138, Unknown=0, NotChecked=0, Total=210 [2020-10-22 02:32:43,050 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1961 states. [2020-10-22 02:32:43,079 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1961 to 1173. [2020-10-22 02:32:43,079 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1173 states. [2020-10-22 02:32:43,083 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1173 states to 1173 states and 3176 transitions. [2020-10-22 02:32:43,083 INFO L78 Accepts]: Start accepts. Automaton has 1173 states and 3176 transitions. Word has length 18 [2020-10-22 02:32:43,084 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-22 02:32:43,084 INFO L481 AbstractCegarLoop]: Abstraction has 1173 states and 3176 transitions. [2020-10-22 02:32:43,084 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-22 02:32:43,084 INFO L276 IsEmpty]: Start isEmpty. Operand 1173 states and 3176 transitions. [2020-10-22 02:32:43,085 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2020-10-22 02:32:43,085 INFO L414 BasicCegarLoop]: Found error trace [2020-10-22 02:32:43,085 INFO L422 BasicCegarLoop]: trace histogram [4, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-22 02:32:43,086 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-10-22 02:32:43,086 INFO L429 AbstractCegarLoop]: === Iteration 6 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-22 02:32:43,086 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-22 02:32:43,086 INFO L82 PathProgramCache]: Analyzing trace with hash 2082924545, now seen corresponding path program 1 times [2020-10-22 02:32:43,090 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-22 02:32:43,090 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2143795764] [2020-10-22 02:32:43,090 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-22 02:32:43,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-22 02:32:43,104 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-22 02:32:43,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-22 02:32:43,117 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-22 02:32:43,125 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-22 02:32:43,126 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-10-22 02:32:43,126 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2020-10-22 02:32:43,126 WARN L264 etLargeBlockEncoding]: Failed to translate choice composition: Branch encoders not available. [2020-10-22 02:32:43,127 WARN L371 ceAbstractionStarter]: 3 thread instances were not sufficient, I will increase this number and restart the analysis [2020-10-22 02:32:43,127 INFO L348 ceAbstractionStarter]: Constructing petrified ICFG for 4 thread instances. [2020-10-22 02:32:43,141 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread4of4ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:32:43,142 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread4of4ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:32:43,142 WARN L313 ript$VariableManager]: TermVariabe thr2Thread4of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:32:43,142 WARN L313 ript$VariableManager]: TermVariabe thr2Thread4of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:32:43,142 WARN L313 ript$VariableManager]: TermVariabe thr2Thread4of4ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:32:43,142 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread4of4ForFork0_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:32:43,142 WARN L313 ript$VariableManager]: TermVariabe thr2Thread4of4ForFork0_~k~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:32:43,143 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread4of4ForFork0_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:32:43,143 WARN L313 ript$VariableManager]: TermVariabe thr2Thread4of4ForFork0_~k~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:32:43,143 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread4of4ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:32:43,143 WARN L313 ript$VariableManager]: TermVariabe thr2Thread4of4ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:32:43,143 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread4of4ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:32:43,143 WARN L313 ript$VariableManager]: TermVariabe thr2Thread4of4ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:32:43,143 WARN L313 ript$VariableManager]: TermVariabe thr2Thread4of4ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:32:43,144 WARN L313 ript$VariableManager]: TermVariabe thr2Thread4of4ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:32:43,144 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread4of4ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:32:43,144 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread4of4ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:32:43,144 WARN L313 ript$VariableManager]: TermVariabe thr2Thread4of4ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:32:43,144 WARN L313 ript$VariableManager]: TermVariabe thr2Thread4of4ForFork0_~k~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:32:43,144 WARN L313 ript$VariableManager]: TermVariabe thr2Thread4of4ForFork0_~k~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:32:43,145 WARN L313 ript$VariableManager]: TermVariabe thr2Thread4of4ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:32:43,145 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread3of4ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:32:43,145 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread3of4ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:32:43,145 WARN L313 ript$VariableManager]: TermVariabe thr2Thread3of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:32:43,145 WARN L313 ript$VariableManager]: TermVariabe thr2Thread3of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:32:43,145 WARN L313 ript$VariableManager]: TermVariabe thr2Thread3of4ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:32:43,146 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread3of4ForFork0_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:32:43,146 WARN L313 ript$VariableManager]: TermVariabe thr2Thread3of4ForFork0_~k~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:32:43,146 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread3of4ForFork0_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:32:43,146 WARN L313 ript$VariableManager]: TermVariabe thr2Thread3of4ForFork0_~k~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:32:43,146 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread3of4ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:32:43,146 WARN L313 ript$VariableManager]: TermVariabe thr2Thread3of4ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:32:43,146 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread3of4ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:32:43,147 WARN L313 ript$VariableManager]: TermVariabe thr2Thread3of4ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:32:43,147 WARN L313 ript$VariableManager]: TermVariabe thr2Thread3of4ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:32:43,147 WARN L313 ript$VariableManager]: TermVariabe thr2Thread3of4ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:32:43,147 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread3of4ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:32:43,147 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread3of4ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:32:43,147 WARN L313 ript$VariableManager]: TermVariabe thr2Thread3of4ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:32:43,147 WARN L313 ript$VariableManager]: TermVariabe thr2Thread3of4ForFork0_~k~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:32:43,148 WARN L313 ript$VariableManager]: TermVariabe thr2Thread3of4ForFork0_~k~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:32:43,148 WARN L313 ript$VariableManager]: TermVariabe thr2Thread3of4ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:32:43,148 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread2of4ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:32:43,148 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread2of4ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:32:43,148 WARN L313 ript$VariableManager]: TermVariabe thr2Thread2of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:32:43,148 WARN L313 ript$VariableManager]: TermVariabe thr2Thread2of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:32:43,149 WARN L313 ript$VariableManager]: TermVariabe thr2Thread2of4ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:32:43,149 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread2of4ForFork0_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:32:43,149 WARN L313 ript$VariableManager]: TermVariabe thr2Thread2of4ForFork0_~k~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:32:43,149 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread2of4ForFork0_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:32:43,149 WARN L313 ript$VariableManager]: TermVariabe thr2Thread2of4ForFork0_~k~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:32:43,149 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread2of4ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:32:43,149 WARN L313 ript$VariableManager]: TermVariabe thr2Thread2of4ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:32:43,150 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread2of4ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:32:43,150 WARN L313 ript$VariableManager]: TermVariabe thr2Thread2of4ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:32:43,150 WARN L313 ript$VariableManager]: TermVariabe thr2Thread2of4ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:32:43,150 WARN L313 ript$VariableManager]: TermVariabe thr2Thread2of4ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:32:43,150 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread2of4ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:32:43,150 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread2of4ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:32:43,150 WARN L313 ript$VariableManager]: TermVariabe thr2Thread2of4ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:32:43,151 WARN L313 ript$VariableManager]: TermVariabe thr2Thread2of4ForFork0_~k~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:32:43,151 WARN L313 ript$VariableManager]: TermVariabe thr2Thread2of4ForFork0_~k~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:32:43,151 WARN L313 ript$VariableManager]: TermVariabe thr2Thread2of4ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:32:43,151 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of4ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:32:43,151 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of4ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:32:43,151 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:32:43,152 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:32:43,152 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of4ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:32:43,152 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of4ForFork0_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:32:43,152 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of4ForFork0_~k~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:32:43,152 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of4ForFork0_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:32:43,152 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of4ForFork0_~k~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:32:43,152 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of4ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:32:43,153 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of4ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:32:43,153 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of4ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:32:43,153 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of4ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:32:43,153 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of4ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:32:43,153 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of4ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:32:43,153 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of4ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:32:43,153 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of4ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:32:43,154 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of4ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:32:43,154 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of4ForFork0_~k~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:32:43,154 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of4ForFork0_~k~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:32:43,154 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of4ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:32:43,154 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:32:43,155 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:32:43,155 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of4ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:32:43,155 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of4ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:32:43,155 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:32:43,155 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of4ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:32:43,155 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:32:43,155 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of4ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:32:43,156 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of4ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:32:43,156 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of4ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:32:43,156 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork1_reach_error_#t~nondet4.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:32:43,156 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork1_reach_error_#t~nondet4.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:32:43,156 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork1_reach_error_#t~nondet4.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:32:43,156 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork1_reach_error_#t~nondet4.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:32:43,156 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:32:43,157 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:32:43,157 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of4ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:32:43,157 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of4ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:32:43,157 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:32:43,157 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of4ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:32:43,157 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:32:43,157 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of4ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:32:43,157 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of4ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:32:43,158 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of4ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:32:43,158 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork1_reach_error_#t~nondet4.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:32:43,158 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork1_reach_error_#t~nondet4.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:32:43,158 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork1_reach_error_#t~nondet4.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:32:43,159 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork1_reach_error_#t~nondet4.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:32:43,159 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:32:43,159 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:32:43,159 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of4ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:32:43,159 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of4ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:32:43,159 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:32:43,160 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of4ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:32:43,160 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:32:43,160 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of4ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:32:43,160 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of4ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:32:43,160 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of4ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:32:43,160 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork1_reach_error_#t~nondet4.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:32:43,160 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork1_reach_error_#t~nondet4.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:32:43,161 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork1_reach_error_#t~nondet4.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:32:43,161 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork1_reach_error_#t~nondet4.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:32:43,161 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:32:43,161 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:32:43,161 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of4ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:32:43,161 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of4ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:32:43,161 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:32:43,162 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of4ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:32:43,162 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:32:43,162 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of4ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:32:43,162 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of4ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:32:43,162 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of4ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:32:43,162 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork1_reach_error_#t~nondet4.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:32:43,162 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork1_reach_error_#t~nondet4.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:32:43,162 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork1_reach_error_#t~nondet4.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:32:43,163 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork1_reach_error_#t~nondet4.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:32:43,163 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:32:43,163 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:32:43,163 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:32:43,163 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:32:43,164 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of4ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:32:43,164 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of4ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:32:43,164 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of4ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:32:43,164 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of4ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:32:43,164 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of4ForFork0_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:32:43,164 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of4ForFork0_~k~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:32:43,166 WARN L313 ript$VariableManager]: TermVariabe thr2Thread2of4ForFork0_~k~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:32:43,166 WARN L313 ript$VariableManager]: TermVariabe thr2Thread2of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:32:43,166 WARN L313 ript$VariableManager]: TermVariabe thr2Thread2of4ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:32:43,166 WARN L313 ript$VariableManager]: TermVariabe thr2Thread2of4ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:32:43,166 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread2of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:32:43,167 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread2of4ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:32:43,167 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread2of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:32:43,167 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread2of4ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:32:43,167 WARN L313 ript$VariableManager]: TermVariabe thr2Thread2of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:32:43,167 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread2of4ForFork0_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:32:43,168 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread3of4ForFork0_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:32:43,169 WARN L313 ript$VariableManager]: TermVariabe thr2Thread3of4ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:32:43,169 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread3of4ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:32:43,169 WARN L313 ript$VariableManager]: TermVariabe thr2Thread3of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:32:43,169 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread3of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:32:43,169 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread3of4ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:32:43,169 WARN L313 ript$VariableManager]: TermVariabe thr2Thread3of4ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:32:43,169 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread3of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:32:43,170 WARN L313 ript$VariableManager]: TermVariabe thr2Thread3of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:32:43,170 WARN L313 ript$VariableManager]: TermVariabe thr2Thread3of4ForFork0_~k~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:32:43,171 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread4of4ForFork0_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:32:43,171 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread4of4ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:32:43,171 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread4of4ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:32:43,172 WARN L313 ript$VariableManager]: TermVariabe thr2Thread4of4ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:32:43,172 WARN L313 ript$VariableManager]: TermVariabe thr2Thread4of4ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:32:43,172 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread4of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:32:43,172 WARN L313 ript$VariableManager]: TermVariabe thr2Thread4of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:32:43,172 WARN L313 ript$VariableManager]: TermVariabe thr2Thread4of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:32:43,172 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread4of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:32:43,172 WARN L313 ript$VariableManager]: TermVariabe thr2Thread4of4ForFork0_~k~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:32:43,174 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of4ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:32:43,174 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of4ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:32:43,174 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork1_reach_error_#t~nondet4.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:32:43,174 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:32:43,174 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:32:43,174 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork1_reach_error_#t~nondet4.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:32:43,175 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:32:43,175 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of4ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:32:43,176 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of4ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:32:43,176 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of4ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:32:43,176 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:32:43,176 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of4ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:32:43,176 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:32:43,177 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:32:43,177 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork1_reach_error_#t~nondet4.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:32:43,177 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork1_reach_error_#t~nondet4.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:32:43,178 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork1_reach_error_#t~nondet4.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:32:43,178 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:32:43,178 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:32:43,179 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork1_reach_error_#t~nondet4.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:32:43,179 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of4ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:32:43,179 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:32:43,179 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of4ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:32:43,179 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of4ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:32:43,180 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork1_reach_error_#t~nondet4.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:32:43,181 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:32:43,181 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork1_reach_error_#t~nondet4.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:32:43,181 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:32:43,181 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of4ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:32:43,181 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of4ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:32:43,181 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of4ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:32:43,181 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:32:43,182 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2020-10-22 02:32:43,183 INFO L253 AbstractCegarLoop]: Starting to check reachability of 7 error locations. [2020-10-22 02:32:43,183 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-22 02:32:43,183 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-22 02:32:43,183 INFO L379 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-22 02:32:43,183 INFO L380 AbstractCegarLoop]: Backedges is MCR [2020-10-22 02:32:43,183 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-22 02:32:43,184 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-22 02:32:43,184 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-22 02:32:43,184 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-22 02:32:43,186 INFO L137 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2020-10-22 02:32:43,186 INFO L144 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 187 places, 187 transitions, 438 flow [2020-10-22 02:32:43,186 INFO L110 LiptonReduction]: Starting Lipton reduction on Petri net that has 187 places, 187 transitions, 438 flow [2020-10-22 02:32:43,186 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 187 places, 187 transitions, 438 flow [2020-10-22 02:32:43,217 INFO L129 PetriNetUnfolder]: 16/197 cut-off events. [2020-10-22 02:32:43,218 INFO L130 PetriNetUnfolder]: For 16/16 co-relation queries the response was YES. [2020-10-22 02:32:43,220 INFO L80 FinitePrefix]: Finished finitePrefix Result has 226 conditions, 197 events. 16/197 cut-off events. For 16/16 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 448 event pairs, 0 based on Foata normal form. 0/175 useless extension candidates. Maximal degree in co-relation 217. Up to 10 conditions per place. [2020-10-22 02:32:43,230 INFO L116 LiptonReduction]: Number of co-enabled transitions 9040 [2020-10-22 02:32:46,414 WARN L193 SmtUtils]: Spent 129.00 ms on a formula simplification that was a NOOP. DAG size: 101 [2020-10-22 02:32:46,537 WARN L193 SmtUtils]: Spent 120.00 ms on a formula simplification that was a NOOP. DAG size: 97 [2020-10-22 02:32:46,843 WARN L193 SmtUtils]: Spent 205.00 ms on a formula simplification that was a NOOP. DAG size: 117 [2020-10-22 02:32:47,137 WARN L193 SmtUtils]: Spent 287.00 ms on a formula simplification. DAG size of input: 112 DAG size of output: 109 [2020-10-22 02:32:47,555 WARN L193 SmtUtils]: Spent 410.00 ms on a formula simplification. DAG size of input: 129 DAG size of output: 121 [2020-10-22 02:32:47,724 WARN L193 SmtUtils]: Spent 165.00 ms on a formula simplification that was a NOOP. DAG size: 117 [2020-10-22 02:32:47,732 INFO L131 LiptonReduction]: Checked pairs total: 17332 [2020-10-22 02:32:47,732 INFO L133 LiptonReduction]: Total number of compositions: 199 [2020-10-22 02:32:47,732 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 61 places, 47 transitions, 158 flow [2020-10-22 02:32:49,134 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 19007 states. [2020-10-22 02:32:49,134 INFO L276 IsEmpty]: Start isEmpty. Operand 19007 states. [2020-10-22 02:32:49,134 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2020-10-22 02:32:49,134 INFO L414 BasicCegarLoop]: Found error trace [2020-10-22 02:32:49,134 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1] [2020-10-22 02:32:49,135 INFO L429 AbstractCegarLoop]: === Iteration 1 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION]=== [2020-10-22 02:32:49,135 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-22 02:32:49,135 INFO L82 PathProgramCache]: Analyzing trace with hash 1391865, now seen corresponding path program 1 times [2020-10-22 02:32:49,136 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-22 02:32:49,136 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [525037322] [2020-10-22 02:32:49,136 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-22 02:32:49,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-22 02:32:49,160 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-22 02:32:49,160 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [525037322] [2020-10-22 02:32:49,160 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-22 02:32:49,160 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2020-10-22 02:32:49,161 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [788087582] [2020-10-22 02:32:49,161 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-22 02:32:49,161 INFO L249 McrAutomatonBuilder]: Started intersection. [2020-10-22 02:32:49,161 INFO L252 McrAutomatonBuilder]: Finished intersection with 4 states and 3 transitions. [2020-10-22 02:32:49,162 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-22 02:32:49,162 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-10-22 02:32:49,162 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-22 02:32:49,162 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-22 02:32:49,162 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-22 02:32:49,163 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-22 02:32:49,163 INFO L87 Difference]: Start difference. First operand 19007 states. Second operand 3 states. [2020-10-22 02:32:50,063 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-22 02:32:50,064 INFO L93 Difference]: Finished difference Result 23088 states and 119575 transitions. [2020-10-22 02:32:50,064 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-22 02:32:50,064 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 3 [2020-10-22 02:32:50,065 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-22 02:32:50,226 INFO L225 Difference]: With dead ends: 23088 [2020-10-22 02:32:50,226 INFO L226 Difference]: Without dead ends: 21563 [2020-10-22 02:32:50,227 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-22 02:32:50,498 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21563 states. [2020-10-22 02:32:51,183 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21563 to 19491. [2020-10-22 02:32:51,183 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19491 states. [2020-10-22 02:32:51,272 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19491 states to 19491 states and 102028 transitions. [2020-10-22 02:32:51,273 INFO L78 Accepts]: Start accepts. Automaton has 19491 states and 102028 transitions. Word has length 3 [2020-10-22 02:32:51,273 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-22 02:32:51,273 INFO L481 AbstractCegarLoop]: Abstraction has 19491 states and 102028 transitions. [2020-10-22 02:32:51,273 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-22 02:32:51,273 INFO L276 IsEmpty]: Start isEmpty. Operand 19491 states and 102028 transitions. [2020-10-22 02:32:51,273 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-10-22 02:32:51,273 INFO L414 BasicCegarLoop]: Found error trace [2020-10-22 02:32:51,274 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-22 02:32:51,274 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2020-10-22 02:32:51,274 INFO L429 AbstractCegarLoop]: === Iteration 2 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION]=== [2020-10-22 02:32:51,274 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-22 02:32:51,274 INFO L82 PathProgramCache]: Analyzing trace with hash 2055126346, now seen corresponding path program 1 times [2020-10-22 02:32:51,275 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-22 02:32:51,275 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1565505639] [2020-10-22 02:32:51,276 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-22 02:32:51,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-22 02:32:51,330 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-22 02:32:51,330 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1565505639] [2020-10-22 02:32:51,331 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-22 02:32:51,331 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-22 02:32:51,331 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1359283423] [2020-10-22 02:32:51,331 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-22 02:32:51,332 INFO L249 McrAutomatonBuilder]: Started intersection. [2020-10-22 02:32:51,333 INFO L252 McrAutomatonBuilder]: Finished intersection with 11 states and 10 transitions. [2020-10-22 02:32:51,333 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-22 02:32:51,334 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-10-22 02:32:51,334 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-22 02:32:51,334 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-22 02:32:51,334 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-22 02:32:51,334 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-22 02:32:51,335 INFO L87 Difference]: Start difference. First operand 19491 states and 102028 transitions. Second operand 5 states. [2020-10-22 02:32:51,741 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-22 02:32:51,742 INFO L93 Difference]: Finished difference Result 35167 states and 174070 transitions. [2020-10-22 02:32:51,742 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-22 02:32:51,742 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 10 [2020-10-22 02:32:51,742 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-22 02:32:51,950 INFO L225 Difference]: With dead ends: 35167 [2020-10-22 02:32:51,951 INFO L226 Difference]: Without dead ends: 35111 [2020-10-22 02:32:51,951 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-10-22 02:32:53,958 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35111 states. [2020-10-22 02:32:54,605 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35111 to 20790. [2020-10-22 02:32:54,606 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20790 states. [2020-10-22 02:32:54,688 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20790 states to 20790 states and 109314 transitions. [2020-10-22 02:32:54,688 INFO L78 Accepts]: Start accepts. Automaton has 20790 states and 109314 transitions. Word has length 10 [2020-10-22 02:32:54,688 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-22 02:32:54,688 INFO L481 AbstractCegarLoop]: Abstraction has 20790 states and 109314 transitions. [2020-10-22 02:32:54,688 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-22 02:32:54,688 INFO L276 IsEmpty]: Start isEmpty. Operand 20790 states and 109314 transitions. [2020-10-22 02:32:54,689 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2020-10-22 02:32:54,689 INFO L414 BasicCegarLoop]: Found error trace [2020-10-22 02:32:54,689 INFO L422 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-22 02:32:54,690 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2020-10-22 02:32:54,690 INFO L429 AbstractCegarLoop]: === Iteration 3 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION]=== [2020-10-22 02:32:54,690 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-22 02:32:54,690 INFO L82 PathProgramCache]: Analyzing trace with hash 728051274, now seen corresponding path program 1 times [2020-10-22 02:32:54,692 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-22 02:32:54,692 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [656437803] [2020-10-22 02:32:54,692 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-22 02:32:54,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-22 02:32:54,738 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-10-22 02:32:54,739 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [656437803] [2020-10-22 02:32:54,739 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-22 02:32:54,739 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-22 02:32:54,739 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1974018528] [2020-10-22 02:32:54,739 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-22 02:32:54,741 INFO L249 McrAutomatonBuilder]: Started intersection. [2020-10-22 02:32:54,743 INFO L252 McrAutomatonBuilder]: Finished intersection with 15 states and 14 transitions. [2020-10-22 02:32:54,743 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-22 02:32:54,743 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-10-22 02:32:54,743 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-22 02:32:54,743 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-22 02:32:54,744 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-22 02:32:54,744 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-22 02:32:54,744 INFO L87 Difference]: Start difference. First operand 20790 states and 109314 transitions. Second operand 5 states. [2020-10-22 02:32:55,437 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-22 02:32:55,437 INFO L93 Difference]: Finished difference Result 37751 states and 189031 transitions. [2020-10-22 02:32:55,438 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-22 02:32:55,438 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 14 [2020-10-22 02:32:55,438 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-22 02:32:55,582 INFO L225 Difference]: With dead ends: 37751 [2020-10-22 02:32:55,582 INFO L226 Difference]: Without dead ends: 37626 [2020-10-22 02:32:55,583 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-10-22 02:32:55,802 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37626 states. [2020-10-22 02:32:56,805 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37626 to 22860. [2020-10-22 02:32:56,805 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 22860 states. [2020-10-22 02:32:56,906 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22860 states to 22860 states and 121589 transitions. [2020-10-22 02:32:56,906 INFO L78 Accepts]: Start accepts. Automaton has 22860 states and 121589 transitions. Word has length 14 [2020-10-22 02:32:56,907 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-22 02:32:56,907 INFO L481 AbstractCegarLoop]: Abstraction has 22860 states and 121589 transitions. [2020-10-22 02:32:56,907 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-22 02:32:56,907 INFO L276 IsEmpty]: Start isEmpty. Operand 22860 states and 121589 transitions. [2020-10-22 02:32:56,908 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-10-22 02:32:56,909 INFO L414 BasicCegarLoop]: Found error trace [2020-10-22 02:32:56,909 INFO L422 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-22 02:32:56,909 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2020-10-22 02:32:56,909 INFO L429 AbstractCegarLoop]: === Iteration 4 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION]=== [2020-10-22 02:32:56,909 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-22 02:32:56,909 INFO L82 PathProgramCache]: Analyzing trace with hash -488413200, now seen corresponding path program 1 times [2020-10-22 02:32:56,911 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-22 02:32:56,911 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [769638623] [2020-10-22 02:32:56,912 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-22 02:32:56,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-22 02:32:56,945 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-22 02:32:56,945 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [769638623] [2020-10-22 02:32:56,945 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-22 02:32:56,946 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-22 02:32:56,946 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1517594165] [2020-10-22 02:32:56,946 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-22 02:32:56,948 INFO L249 McrAutomatonBuilder]: Started intersection. [2020-10-22 02:32:56,954 INFO L252 McrAutomatonBuilder]: Finished intersection with 32 states and 45 transitions. [2020-10-22 02:32:56,954 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-22 02:32:57,086 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-10-22 02:32:57,086 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-22 02:32:57,086 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-22 02:32:57,087 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-22 02:32:57,087 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-22 02:32:57,087 INFO L87 Difference]: Start difference. First operand 22860 states and 121589 transitions. Second operand 3 states. [2020-10-22 02:32:57,136 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-22 02:32:57,136 INFO L93 Difference]: Finished difference Result 4827 states and 15106 transitions. [2020-10-22 02:32:57,136 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-22 02:32:57,136 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 17 [2020-10-22 02:32:57,137 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-22 02:32:57,146 INFO L225 Difference]: With dead ends: 4827 [2020-10-22 02:32:57,146 INFO L226 Difference]: Without dead ends: 4827 [2020-10-22 02:32:57,147 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 15 SyntacticMatches, 1 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-22 02:32:57,175 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4827 states. [2020-10-22 02:32:57,224 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4827 to 4803. [2020-10-22 02:32:57,224 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4803 states. [2020-10-22 02:32:57,235 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4803 states to 4803 states and 15042 transitions. [2020-10-22 02:32:57,235 INFO L78 Accepts]: Start accepts. Automaton has 4803 states and 15042 transitions. Word has length 17 [2020-10-22 02:32:57,235 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-22 02:32:57,235 INFO L481 AbstractCegarLoop]: Abstraction has 4803 states and 15042 transitions. [2020-10-22 02:32:57,235 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-22 02:32:57,235 INFO L276 IsEmpty]: Start isEmpty. Operand 4803 states and 15042 transitions. [2020-10-22 02:32:57,236 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2020-10-22 02:32:57,237 INFO L414 BasicCegarLoop]: Found error trace [2020-10-22 02:32:57,237 INFO L422 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-22 02:32:57,237 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2020-10-22 02:32:57,237 INFO L429 AbstractCegarLoop]: === Iteration 5 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION]=== [2020-10-22 02:32:57,237 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-22 02:32:57,238 INFO L82 PathProgramCache]: Analyzing trace with hash -2048019711, now seen corresponding path program 1 times [2020-10-22 02:32:57,240 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-22 02:32:57,240 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [157631568] [2020-10-22 02:32:57,240 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-22 02:32:57,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-22 02:32:57,313 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-22 02:32:57,314 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [157631568] [2020-10-22 02:32:57,314 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [570109650] [2020-10-22 02:32:57,314 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-22 02:32:57,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-22 02:32:57,399 INFO L263 TraceCheckSpWp]: Trace formula consists of 151 conjuncts, 7 conjunts are in the unsatisfiable core [2020-10-22 02:32:57,401 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-22 02:32:57,475 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-22 02:32:57,476 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-10-22 02:32:57,476 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 10 [2020-10-22 02:32:57,476 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1528179828] [2020-10-22 02:32:57,476 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-22 02:32:57,478 INFO L249 McrAutomatonBuilder]: Started intersection. [2020-10-22 02:32:57,484 INFO L252 McrAutomatonBuilder]: Finished intersection with 35 states and 50 transitions. [2020-10-22 02:32:57,484 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-22 02:32:57,696 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 2 new interpolants: [275012#(<= (+ thr2Thread1of4ForFork0_~t~0 5) ~n~0), 275013#(<= (+ ~x~0 5) ~n~0)] [2020-10-22 02:32:57,696 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-22 02:32:57,697 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-22 02:32:57,697 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-22 02:32:57,697 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=135, Unknown=0, NotChecked=0, Total=182 [2020-10-22 02:32:57,697 INFO L87 Difference]: Start difference. First operand 4803 states and 15042 transitions. Second operand 9 states. [2020-10-22 02:32:58,126 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-22 02:32:58,126 INFO L93 Difference]: Finished difference Result 8911 states and 26543 transitions. [2020-10-22 02:32:58,126 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-10-22 02:32:58,126 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 18 [2020-10-22 02:32:58,127 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-22 02:32:58,141 INFO L225 Difference]: With dead ends: 8911 [2020-10-22 02:32:58,141 INFO L226 Difference]: Without dead ends: 8877 [2020-10-22 02:32:58,141 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 72 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=129, Invalid=333, Unknown=0, NotChecked=0, Total=462 [2020-10-22 02:32:58,176 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8877 states. [2020-10-22 02:32:58,235 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8877 to 4532. [2020-10-22 02:32:58,236 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4532 states. [2020-10-22 02:32:58,248 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4532 states to 4532 states and 14145 transitions. [2020-10-22 02:32:58,249 INFO L78 Accepts]: Start accepts. Automaton has 4532 states and 14145 transitions. Word has length 18 [2020-10-22 02:32:58,249 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-22 02:32:58,249 INFO L481 AbstractCegarLoop]: Abstraction has 4532 states and 14145 transitions. [2020-10-22 02:32:58,249 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-22 02:32:58,249 INFO L276 IsEmpty]: Start isEmpty. Operand 4532 states and 14145 transitions. [2020-10-22 02:32:58,251 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2020-10-22 02:32:58,251 INFO L414 BasicCegarLoop]: Found error trace [2020-10-22 02:32:58,251 INFO L422 BasicCegarLoop]: trace histogram [3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-22 02:32:58,462 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2020-10-22 02:32:58,463 INFO L429 AbstractCegarLoop]: === Iteration 6 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION]=== [2020-10-22 02:32:58,463 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-22 02:32:58,464 INFO L82 PathProgramCache]: Analyzing trace with hash -216309157, now seen corresponding path program 1 times [2020-10-22 02:32:58,465 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-22 02:32:58,466 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [861269851] [2020-10-22 02:32:58,466 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-22 02:32:58,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-22 02:32:58,792 WARN L193 SmtUtils]: Spent 262.00 ms on a formula simplification that was a NOOP. DAG size: 7 [2020-10-22 02:32:58,810 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2020-10-22 02:32:58,810 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [861269851] [2020-10-22 02:32:58,810 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-22 02:32:58,811 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-22 02:32:58,811 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1796790084] [2020-10-22 02:32:58,813 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-22 02:32:58,815 INFO L249 McrAutomatonBuilder]: Started intersection. [2020-10-22 02:32:58,817 INFO L252 McrAutomatonBuilder]: Finished intersection with 19 states and 18 transitions. [2020-10-22 02:32:58,818 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-22 02:32:58,818 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-10-22 02:32:58,819 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-22 02:32:58,819 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-22 02:32:58,820 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-22 02:32:58,821 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-22 02:32:58,821 INFO L87 Difference]: Start difference. First operand 4532 states and 14145 transitions. Second operand 5 states. [2020-10-22 02:32:58,998 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-22 02:32:58,998 INFO L93 Difference]: Finished difference Result 7656 states and 23140 transitions. [2020-10-22 02:32:58,999 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-22 02:32:58,999 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 18 [2020-10-22 02:32:58,999 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-22 02:32:59,021 INFO L225 Difference]: With dead ends: 7656 [2020-10-22 02:32:59,021 INFO L226 Difference]: Without dead ends: 7633 [2020-10-22 02:32:59,021 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-10-22 02:32:59,073 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7633 states. [2020-10-22 02:32:59,165 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7633 to 4916. [2020-10-22 02:32:59,165 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4916 states. [2020-10-22 02:32:59,179 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4916 states to 4916 states and 15426 transitions. [2020-10-22 02:32:59,179 INFO L78 Accepts]: Start accepts. Automaton has 4916 states and 15426 transitions. Word has length 18 [2020-10-22 02:32:59,179 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-22 02:32:59,179 INFO L481 AbstractCegarLoop]: Abstraction has 4916 states and 15426 transitions. [2020-10-22 02:32:59,179 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-22 02:32:59,180 INFO L276 IsEmpty]: Start isEmpty. Operand 4916 states and 15426 transitions. [2020-10-22 02:32:59,181 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2020-10-22 02:32:59,181 INFO L414 BasicCegarLoop]: Found error trace [2020-10-22 02:32:59,181 INFO L422 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-22 02:32:59,181 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2020-10-22 02:32:59,181 INFO L429 AbstractCegarLoop]: === Iteration 7 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION]=== [2020-10-22 02:32:59,181 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-22 02:32:59,182 INFO L82 PathProgramCache]: Analyzing trace with hash 2063912021, now seen corresponding path program 1 times [2020-10-22 02:32:59,183 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-22 02:32:59,183 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1361572372] [2020-10-22 02:32:59,183 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-22 02:32:59,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-22 02:32:59,264 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-10-22 02:32:59,264 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1361572372] [2020-10-22 02:32:59,265 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-22 02:32:59,265 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-22 02:32:59,265 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [207294845] [2020-10-22 02:32:59,265 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-22 02:32:59,268 INFO L249 McrAutomatonBuilder]: Started intersection. [2020-10-22 02:32:59,271 INFO L252 McrAutomatonBuilder]: Finished intersection with 19 states and 18 transitions. [2020-10-22 02:32:59,272 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-22 02:32:59,272 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-10-22 02:32:59,272 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-22 02:32:59,273 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-22 02:32:59,273 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-22 02:32:59,273 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-22 02:32:59,273 INFO L87 Difference]: Start difference. First operand 4916 states and 15426 transitions. Second operand 7 states. [2020-10-22 02:32:59,667 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-22 02:32:59,667 INFO L93 Difference]: Finished difference Result 9482 states and 28329 transitions. [2020-10-22 02:32:59,668 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-10-22 02:32:59,668 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 18 [2020-10-22 02:32:59,668 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-22 02:32:59,684 INFO L225 Difference]: With dead ends: 9482 [2020-10-22 02:32:59,684 INFO L226 Difference]: Without dead ends: 9443 [2020-10-22 02:32:59,684 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=72, Invalid=138, Unknown=0, NotChecked=0, Total=210 [2020-10-22 02:32:59,721 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9443 states. [2020-10-22 02:32:59,784 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9443 to 4737. [2020-10-22 02:32:59,784 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4737 states. [2020-10-22 02:32:59,793 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4737 states to 4737 states and 14887 transitions. [2020-10-22 02:32:59,794 INFO L78 Accepts]: Start accepts. Automaton has 4737 states and 14887 transitions. Word has length 18 [2020-10-22 02:32:59,794 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-22 02:32:59,794 INFO L481 AbstractCegarLoop]: Abstraction has 4737 states and 14887 transitions. [2020-10-22 02:32:59,794 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-22 02:32:59,794 INFO L276 IsEmpty]: Start isEmpty. Operand 4737 states and 14887 transitions. [2020-10-22 02:32:59,796 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2020-10-22 02:32:59,796 INFO L414 BasicCegarLoop]: Found error trace [2020-10-22 02:32:59,797 INFO L422 BasicCegarLoop]: trace histogram [3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-22 02:32:59,797 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2020-10-22 02:32:59,797 INFO L429 AbstractCegarLoop]: === Iteration 8 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION]=== [2020-10-22 02:32:59,797 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-22 02:32:59,797 INFO L82 PathProgramCache]: Analyzing trace with hash 399815570, now seen corresponding path program 1 times [2020-10-22 02:32:59,800 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-22 02:32:59,800 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [58929998] [2020-10-22 02:32:59,800 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-22 02:32:59,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-22 02:32:59,870 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-10-22 02:32:59,870 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [58929998] [2020-10-22 02:32:59,871 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1345996628] [2020-10-22 02:32:59,871 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-22 02:32:59,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-22 02:32:59,949 INFO L263 TraceCheckSpWp]: Trace formula consists of 162 conjuncts, 7 conjunts are in the unsatisfiable core [2020-10-22 02:32:59,951 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-22 02:33:00,035 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-10-22 02:33:00,035 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-10-22 02:33:00,035 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 10 [2020-10-22 02:33:00,036 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [716283123] [2020-10-22 02:33:00,036 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-22 02:33:00,039 INFO L249 McrAutomatonBuilder]: Started intersection. [2020-10-22 02:33:00,050 INFO L252 McrAutomatonBuilder]: Finished intersection with 55 states and 86 transitions. [2020-10-22 02:33:00,050 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-22 02:33:00,393 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 2 new interpolants: [329557#(<= (+ ~x~0 5) ~n~0), 329556#(<= (+ thr2Thread1of4ForFork0_~t~0 5) ~n~0)] [2020-10-22 02:33:00,394 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-22 02:33:00,394 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-22 02:33:00,394 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-22 02:33:00,394 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=135, Unknown=0, NotChecked=0, Total=182 [2020-10-22 02:33:00,394 INFO L87 Difference]: Start difference. First operand 4737 states and 14887 transitions. Second operand 9 states. [2020-10-22 02:33:00,853 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-22 02:33:00,853 INFO L93 Difference]: Finished difference Result 9245 states and 27612 transitions. [2020-10-22 02:33:00,853 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-10-22 02:33:00,853 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 22 [2020-10-22 02:33:00,854 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-22 02:33:00,868 INFO L225 Difference]: With dead ends: 9245 [2020-10-22 02:33:00,868 INFO L226 Difference]: Without dead ends: 9219 [2020-10-22 02:33:00,869 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 66 GetRequests, 46 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 72 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=129, Invalid=333, Unknown=0, NotChecked=0, Total=462 [2020-10-22 02:33:00,902 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9219 states. [2020-10-22 02:33:00,962 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9219 to 4617. [2020-10-22 02:33:00,962 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4617 states. [2020-10-22 02:33:00,975 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4617 states to 4617 states and 14463 transitions. [2020-10-22 02:33:00,975 INFO L78 Accepts]: Start accepts. Automaton has 4617 states and 14463 transitions. Word has length 22 [2020-10-22 02:33:00,975 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-22 02:33:00,975 INFO L481 AbstractCegarLoop]: Abstraction has 4617 states and 14463 transitions. [2020-10-22 02:33:00,975 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-22 02:33:00,976 INFO L276 IsEmpty]: Start isEmpty. Operand 4617 states and 14463 transitions. [2020-10-22 02:33:00,978 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2020-10-22 02:33:00,978 INFO L414 BasicCegarLoop]: Found error trace [2020-10-22 02:33:00,978 INFO L422 BasicCegarLoop]: trace histogram [3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-22 02:33:01,192 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20,3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-22 02:33:01,193 INFO L429 AbstractCegarLoop]: === Iteration 9 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION]=== [2020-10-22 02:33:01,193 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-22 02:33:01,194 INFO L82 PathProgramCache]: Analyzing trace with hash 108784157, now seen corresponding path program 1 times [2020-10-22 02:33:01,197 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-22 02:33:01,197 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [423328788] [2020-10-22 02:33:01,198 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-22 02:33:01,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-22 02:33:01,255 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-10-22 02:33:01,255 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [423328788] [2020-10-22 02:33:01,256 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1304280904] [2020-10-22 02:33:01,256 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-22 02:33:01,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-22 02:33:01,365 INFO L263 TraceCheckSpWp]: Trace formula consists of 164 conjuncts, 7 conjunts are in the unsatisfiable core [2020-10-22 02:33:01,366 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-22 02:33:01,706 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-10-22 02:33:01,706 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-10-22 02:33:01,706 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 10 [2020-10-22 02:33:01,706 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [2126901867] [2020-10-22 02:33:01,707 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-22 02:33:01,709 INFO L249 McrAutomatonBuilder]: Started intersection. [2020-10-22 02:33:01,717 INFO L252 McrAutomatonBuilder]: Finished intersection with 39 states and 54 transitions. [2020-10-22 02:33:01,717 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-22 02:33:01,891 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 2 new interpolants: [348129#(<= (+ ~x~0 5) ~n~0), 348128#(<= (+ thr2Thread2of4ForFork0_~t~0 5) ~n~0)] [2020-10-22 02:33:01,892 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-22 02:33:01,892 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-22 02:33:01,892 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-22 02:33:01,892 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=135, Unknown=0, NotChecked=0, Total=182 [2020-10-22 02:33:01,892 INFO L87 Difference]: Start difference. First operand 4617 states and 14463 transitions. Second operand 9 states. [2020-10-22 02:33:02,354 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-22 02:33:02,354 INFO L93 Difference]: Finished difference Result 9587 states and 28662 transitions. [2020-10-22 02:33:02,355 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-10-22 02:33:02,355 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 22 [2020-10-22 02:33:02,355 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-22 02:33:02,370 INFO L225 Difference]: With dead ends: 9587 [2020-10-22 02:33:02,370 INFO L226 Difference]: Without dead ends: 9555 [2020-10-22 02:33:02,371 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 72 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=129, Invalid=333, Unknown=0, NotChecked=0, Total=462 [2020-10-22 02:33:02,404 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9555 states. [2020-10-22 02:33:02,469 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9555 to 4637. [2020-10-22 02:33:02,469 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4637 states. [2020-10-22 02:33:02,478 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4637 states to 4637 states and 14557 transitions. [2020-10-22 02:33:02,478 INFO L78 Accepts]: Start accepts. Automaton has 4637 states and 14557 transitions. Word has length 22 [2020-10-22 02:33:02,479 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-22 02:33:02,479 INFO L481 AbstractCegarLoop]: Abstraction has 4637 states and 14557 transitions. [2020-10-22 02:33:02,479 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-22 02:33:02,479 INFO L276 IsEmpty]: Start isEmpty. Operand 4637 states and 14557 transitions. [2020-10-22 02:33:02,480 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2020-10-22 02:33:02,480 INFO L414 BasicCegarLoop]: Found error trace [2020-10-22 02:33:02,481 INFO L422 BasicCegarLoop]: trace histogram [3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-22 02:33:02,681 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable21 [2020-10-22 02:33:02,682 INFO L429 AbstractCegarLoop]: === Iteration 10 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION]=== [2020-10-22 02:33:02,682 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-22 02:33:02,682 INFO L82 PathProgramCache]: Analyzing trace with hash 1457451776, now seen corresponding path program 1 times [2020-10-22 02:33:02,684 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-22 02:33:02,684 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1110396069] [2020-10-22 02:33:02,684 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-22 02:33:02,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-22 02:33:02,766 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2020-10-22 02:33:02,766 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1110396069] [2020-10-22 02:33:02,766 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-22 02:33:02,766 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-22 02:33:02,767 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [626083988] [2020-10-22 02:33:02,767 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-22 02:33:02,769 INFO L249 McrAutomatonBuilder]: Started intersection. [2020-10-22 02:33:02,774 INFO L252 McrAutomatonBuilder]: Finished intersection with 23 states and 22 transitions. [2020-10-22 02:33:02,774 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-22 02:33:02,775 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-10-22 02:33:02,775 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-22 02:33:02,775 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-22 02:33:02,775 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-22 02:33:02,776 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-22 02:33:02,776 INFO L87 Difference]: Start difference. First operand 4637 states and 14557 transitions. Second operand 7 states. [2020-10-22 02:33:03,135 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-22 02:33:03,135 INFO L93 Difference]: Finished difference Result 9409 states and 28176 transitions. [2020-10-22 02:33:03,135 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-10-22 02:33:03,136 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 22 [2020-10-22 02:33:03,136 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-22 02:33:03,151 INFO L225 Difference]: With dead ends: 9409 [2020-10-22 02:33:03,151 INFO L226 Difference]: Without dead ends: 9379 [2020-10-22 02:33:03,151 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=72, Invalid=138, Unknown=0, NotChecked=0, Total=210 [2020-10-22 02:33:03,184 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9379 states. [2020-10-22 02:33:03,251 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9379 to 4604. [2020-10-22 02:33:03,251 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4604 states. [2020-10-22 02:33:03,263 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4604 states to 4604 states and 14452 transitions. [2020-10-22 02:33:03,264 INFO L78 Accepts]: Start accepts. Automaton has 4604 states and 14452 transitions. Word has length 22 [2020-10-22 02:33:03,264 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-22 02:33:03,264 INFO L481 AbstractCegarLoop]: Abstraction has 4604 states and 14452 transitions. [2020-10-22 02:33:03,264 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-22 02:33:03,264 INFO L276 IsEmpty]: Start isEmpty. Operand 4604 states and 14452 transitions. [2020-10-22 02:33:03,266 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2020-10-22 02:33:03,266 INFO L414 BasicCegarLoop]: Found error trace [2020-10-22 02:33:03,266 INFO L422 BasicCegarLoop]: trace histogram [3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-22 02:33:03,267 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2020-10-22 02:33:03,267 INFO L429 AbstractCegarLoop]: === Iteration 11 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION]=== [2020-10-22 02:33:03,267 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-22 02:33:03,267 INFO L82 PathProgramCache]: Analyzing trace with hash 1457076211, now seen corresponding path program 1 times [2020-10-22 02:33:03,268 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-22 02:33:03,268 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1346879080] [2020-10-22 02:33:03,268 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-22 02:33:03,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-22 02:33:03,331 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2020-10-22 02:33:03,331 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1346879080] [2020-10-22 02:33:03,331 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-22 02:33:03,331 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-22 02:33:03,332 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [773660489] [2020-10-22 02:33:03,332 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-22 02:33:03,334 INFO L249 McrAutomatonBuilder]: Started intersection. [2020-10-22 02:33:03,339 INFO L252 McrAutomatonBuilder]: Finished intersection with 23 states and 22 transitions. [2020-10-22 02:33:03,339 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-22 02:33:03,340 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-10-22 02:33:03,340 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-22 02:33:03,340 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-22 02:33:03,340 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-22 02:33:03,341 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-22 02:33:03,341 INFO L87 Difference]: Start difference. First operand 4604 states and 14452 transitions. Second operand 7 states. [2020-10-22 02:33:03,716 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-22 02:33:03,716 INFO L93 Difference]: Finished difference Result 9540 states and 28547 transitions. [2020-10-22 02:33:03,717 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-10-22 02:33:03,717 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 22 [2020-10-22 02:33:03,717 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-22 02:33:03,749 INFO L225 Difference]: With dead ends: 9540 [2020-10-22 02:33:03,749 INFO L226 Difference]: Without dead ends: 9501 [2020-10-22 02:33:03,750 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=72, Invalid=138, Unknown=0, NotChecked=0, Total=210 [2020-10-22 02:33:03,815 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9501 states. [2020-10-22 02:33:03,918 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9501 to 4523. [2020-10-22 02:33:03,918 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4523 states. [2020-10-22 02:33:03,934 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4523 states to 4523 states and 14210 transitions. [2020-10-22 02:33:03,934 INFO L78 Accepts]: Start accepts. Automaton has 4523 states and 14210 transitions. Word has length 22 [2020-10-22 02:33:03,935 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-22 02:33:03,935 INFO L481 AbstractCegarLoop]: Abstraction has 4523 states and 14210 transitions. [2020-10-22 02:33:03,935 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-22 02:33:03,935 INFO L276 IsEmpty]: Start isEmpty. Operand 4523 states and 14210 transitions. [2020-10-22 02:33:03,937 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2020-10-22 02:33:03,937 INFO L414 BasicCegarLoop]: Found error trace [2020-10-22 02:33:03,937 INFO L422 BasicCegarLoop]: trace histogram [5, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-22 02:33:03,938 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2020-10-22 02:33:03,938 INFO L429 AbstractCegarLoop]: === Iteration 12 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION]=== [2020-10-22 02:33:03,938 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-22 02:33:03,938 INFO L82 PathProgramCache]: Analyzing trace with hash -699788641, now seen corresponding path program 1 times [2020-10-22 02:33:03,942 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-22 02:33:03,942 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1966434714] [2020-10-22 02:33:03,942 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-22 02:33:03,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-22 02:33:03,963 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-22 02:33:03,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-22 02:33:03,981 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-22 02:33:03,999 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-22 02:33:03,999 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-10-22 02:33:04,000 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2020-10-22 02:33:04,000 WARN L264 etLargeBlockEncoding]: Failed to translate choice composition: Branch encoders not available. [2020-10-22 02:33:04,002 WARN L371 ceAbstractionStarter]: 4 thread instances were not sufficient, I will increase this number and restart the analysis [2020-10-22 02:33:04,003 INFO L348 ceAbstractionStarter]: Constructing petrified ICFG for 5 thread instances. [2020-10-22 02:33:04,019 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread4of5ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:33:04,020 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread4of5ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:33:04,020 WARN L313 ript$VariableManager]: TermVariabe thr2Thread4of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:33:04,020 WARN L313 ript$VariableManager]: TermVariabe thr2Thread4of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:33:04,020 WARN L313 ript$VariableManager]: TermVariabe thr2Thread4of5ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:33:04,020 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread4of5ForFork0_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:33:04,020 WARN L313 ript$VariableManager]: TermVariabe thr2Thread4of5ForFork0_~k~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:33:04,020 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread4of5ForFork0_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:33:04,020 WARN L313 ript$VariableManager]: TermVariabe thr2Thread4of5ForFork0_~k~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:33:04,021 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread4of5ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:33:04,021 WARN L313 ript$VariableManager]: TermVariabe thr2Thread4of5ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:33:04,021 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread4of5ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:33:04,021 WARN L313 ript$VariableManager]: TermVariabe thr2Thread4of5ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:33:04,021 WARN L313 ript$VariableManager]: TermVariabe thr2Thread4of5ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:33:04,021 WARN L313 ript$VariableManager]: TermVariabe thr2Thread4of5ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:33:04,021 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread4of5ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:33:04,022 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread4of5ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:33:04,022 WARN L313 ript$VariableManager]: TermVariabe thr2Thread4of5ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:33:04,022 WARN L313 ript$VariableManager]: TermVariabe thr2Thread4of5ForFork0_~k~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:33:04,022 WARN L313 ript$VariableManager]: TermVariabe thr2Thread4of5ForFork0_~k~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:33:04,022 WARN L313 ript$VariableManager]: TermVariabe thr2Thread4of5ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:33:04,022 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread5of5ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:33:04,022 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread5of5ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:33:04,023 WARN L313 ript$VariableManager]: TermVariabe thr2Thread5of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:33:04,023 WARN L313 ript$VariableManager]: TermVariabe thr2Thread5of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:33:04,023 WARN L313 ript$VariableManager]: TermVariabe thr2Thread5of5ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:33:04,023 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread5of5ForFork0_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:33:04,023 WARN L313 ript$VariableManager]: TermVariabe thr2Thread5of5ForFork0_~k~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:33:04,023 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread5of5ForFork0_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:33:04,023 WARN L313 ript$VariableManager]: TermVariabe thr2Thread5of5ForFork0_~k~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:33:04,023 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread5of5ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:33:04,024 WARN L313 ript$VariableManager]: TermVariabe thr2Thread5of5ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:33:04,024 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread5of5ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:33:04,024 WARN L313 ript$VariableManager]: TermVariabe thr2Thread5of5ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:33:04,024 WARN L313 ript$VariableManager]: TermVariabe thr2Thread5of5ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:33:04,024 WARN L313 ript$VariableManager]: TermVariabe thr2Thread5of5ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:33:04,024 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread5of5ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:33:04,024 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread5of5ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:33:04,024 WARN L313 ript$VariableManager]: TermVariabe thr2Thread5of5ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:33:04,025 WARN L313 ript$VariableManager]: TermVariabe thr2Thread5of5ForFork0_~k~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:33:04,025 WARN L313 ript$VariableManager]: TermVariabe thr2Thread5of5ForFork0_~k~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:33:04,025 WARN L313 ript$VariableManager]: TermVariabe thr2Thread5of5ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:33:04,025 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread3of5ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:33:04,025 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread3of5ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:33:04,025 WARN L313 ript$VariableManager]: TermVariabe thr2Thread3of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:33:04,025 WARN L313 ript$VariableManager]: TermVariabe thr2Thread3of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:33:04,026 WARN L313 ript$VariableManager]: TermVariabe thr2Thread3of5ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:33:04,026 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread3of5ForFork0_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:33:04,026 WARN L313 ript$VariableManager]: TermVariabe thr2Thread3of5ForFork0_~k~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:33:04,026 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread3of5ForFork0_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:33:04,026 WARN L313 ript$VariableManager]: TermVariabe thr2Thread3of5ForFork0_~k~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:33:04,026 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread3of5ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:33:04,026 WARN L313 ript$VariableManager]: TermVariabe thr2Thread3of5ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:33:04,026 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread3of5ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:33:04,027 WARN L313 ript$VariableManager]: TermVariabe thr2Thread3of5ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:33:04,027 WARN L313 ript$VariableManager]: TermVariabe thr2Thread3of5ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:33:04,027 WARN L313 ript$VariableManager]: TermVariabe thr2Thread3of5ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:33:04,027 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread3of5ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:33:04,027 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread3of5ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:33:04,027 WARN L313 ript$VariableManager]: TermVariabe thr2Thread3of5ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:33:04,027 WARN L313 ript$VariableManager]: TermVariabe thr2Thread3of5ForFork0_~k~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:33:04,027 WARN L313 ript$VariableManager]: TermVariabe thr2Thread3of5ForFork0_~k~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:33:04,028 WARN L313 ript$VariableManager]: TermVariabe thr2Thread3of5ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:33:04,028 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread2of5ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:33:04,028 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread2of5ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:33:04,028 WARN L313 ript$VariableManager]: TermVariabe thr2Thread2of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:33:04,028 WARN L313 ript$VariableManager]: TermVariabe thr2Thread2of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:33:04,028 WARN L313 ript$VariableManager]: TermVariabe thr2Thread2of5ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:33:04,028 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread2of5ForFork0_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:33:04,029 WARN L313 ript$VariableManager]: TermVariabe thr2Thread2of5ForFork0_~k~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:33:04,029 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread2of5ForFork0_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:33:04,029 WARN L313 ript$VariableManager]: TermVariabe thr2Thread2of5ForFork0_~k~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:33:04,029 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread2of5ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:33:04,029 WARN L313 ript$VariableManager]: TermVariabe thr2Thread2of5ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:33:04,029 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread2of5ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:33:04,029 WARN L313 ript$VariableManager]: TermVariabe thr2Thread2of5ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:33:04,029 WARN L313 ript$VariableManager]: TermVariabe thr2Thread2of5ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:33:04,029 WARN L313 ript$VariableManager]: TermVariabe thr2Thread2of5ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:33:04,030 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread2of5ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:33:04,030 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread2of5ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:33:04,030 WARN L313 ript$VariableManager]: TermVariabe thr2Thread2of5ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:33:04,030 WARN L313 ript$VariableManager]: TermVariabe thr2Thread2of5ForFork0_~k~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:33:04,030 WARN L313 ript$VariableManager]: TermVariabe thr2Thread2of5ForFork0_~k~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:33:04,030 WARN L313 ript$VariableManager]: TermVariabe thr2Thread2of5ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:33:04,031 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of5ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:33:04,031 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of5ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:33:04,031 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:33:04,032 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:33:04,032 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of5ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:33:04,032 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of5ForFork0_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:33:04,032 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of5ForFork0_~k~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:33:04,032 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of5ForFork0_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:33:04,032 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of5ForFork0_~k~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:33:04,032 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of5ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:33:04,032 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of5ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:33:04,033 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of5ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:33:04,033 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of5ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:33:04,033 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of5ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:33:04,033 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of5ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:33:04,033 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of5ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:33:04,033 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of5ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:33:04,033 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of5ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:33:04,034 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of5ForFork0_~k~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:33:04,034 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of5ForFork0_~k~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:33:04,034 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of5ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:33:04,034 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of5ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:33:04,034 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of5ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:33:04,034 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of5ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:33:04,035 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of5ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:33:04,035 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of5ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:33:04,035 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of5ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:33:04,035 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of5ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:33:04,035 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of5ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:33:04,035 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of5ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:33:04,035 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of5ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:33:04,036 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of5ForFork1_reach_error_#t~nondet4.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:33:04,036 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of5ForFork1_reach_error_#t~nondet4.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:33:04,036 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of5ForFork1_reach_error_#t~nondet4.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:33:04,036 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of5ForFork1_reach_error_#t~nondet4.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:33:04,036 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread5of5ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:33:04,036 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread5of5ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:33:04,036 WARN L313 ript$VariableManager]: TermVariabe thr1Thread5of5ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:33:04,037 WARN L313 ript$VariableManager]: TermVariabe thr1Thread5of5ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:33:04,037 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread5of5ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:33:04,037 WARN L313 ript$VariableManager]: TermVariabe thr1Thread5of5ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:33:04,037 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread5of5ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:33:04,037 WARN L313 ript$VariableManager]: TermVariabe thr1Thread5of5ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:33:04,037 WARN L313 ript$VariableManager]: TermVariabe thr1Thread5of5ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:33:04,037 WARN L313 ript$VariableManager]: TermVariabe thr1Thread5of5ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:33:04,038 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread5of5ForFork1_reach_error_#t~nondet4.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:33:04,038 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread5of5ForFork1_reach_error_#t~nondet4.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:33:04,038 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread5of5ForFork1_reach_error_#t~nondet4.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:33:04,038 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread5of5ForFork1_reach_error_#t~nondet4.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:33:04,038 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of5ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:33:04,038 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of5ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:33:04,038 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of5ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:33:04,039 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of5ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:33:04,039 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of5ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:33:04,039 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of5ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:33:04,039 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of5ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:33:04,039 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of5ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:33:04,039 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of5ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:33:04,039 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of5ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:33:04,040 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of5ForFork1_reach_error_#t~nondet4.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:33:04,040 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of5ForFork1_reach_error_#t~nondet4.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:33:04,040 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of5ForFork1_reach_error_#t~nondet4.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:33:04,040 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of5ForFork1_reach_error_#t~nondet4.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:33:04,040 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of5ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:33:04,040 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of5ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:33:04,040 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of5ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:33:04,041 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of5ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:33:04,041 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of5ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:33:04,041 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of5ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:33:04,041 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of5ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:33:04,041 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of5ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:33:04,041 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of5ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:33:04,041 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of5ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:33:04,042 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of5ForFork1_reach_error_#t~nondet4.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:33:04,042 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of5ForFork1_reach_error_#t~nondet4.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:33:04,042 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of5ForFork1_reach_error_#t~nondet4.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:33:04,042 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of5ForFork1_reach_error_#t~nondet4.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:33:04,042 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of5ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:33:04,042 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of5ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:33:04,042 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of5ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:33:04,043 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of5ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:33:04,043 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of5ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:33:04,043 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of5ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:33:04,043 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of5ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:33:04,043 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of5ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:33:04,043 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of5ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:33:04,043 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of5ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:33:04,043 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of5ForFork1_reach_error_#t~nondet4.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:33:04,044 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of5ForFork1_reach_error_#t~nondet4.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:33:04,044 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of5ForFork1_reach_error_#t~nondet4.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:33:04,044 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of5ForFork1_reach_error_#t~nondet4.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:33:04,044 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of5ForFork0_~k~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:33:04,044 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of5ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:33:04,045 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of5ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:33:04,045 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of5ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:33:04,045 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:33:04,045 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:33:04,045 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of5ForFork0_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:33:04,045 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of5ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:33:04,045 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of5ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:33:04,046 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of5ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:33:04,049 WARN L313 ript$VariableManager]: TermVariabe thr2Thread2of5ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:33:04,050 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread2of5ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:33:04,050 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread2of5ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:33:04,050 WARN L313 ript$VariableManager]: TermVariabe thr2Thread2of5ForFork0_~k~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:33:04,050 WARN L313 ript$VariableManager]: TermVariabe thr2Thread2of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:33:04,050 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread2of5ForFork0_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:33:04,050 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread2of5ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:33:04,050 WARN L313 ript$VariableManager]: TermVariabe thr2Thread2of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:33:04,051 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread2of5ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:33:04,051 WARN L313 ript$VariableManager]: TermVariabe thr2Thread2of5ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:33:04,052 WARN L313 ript$VariableManager]: TermVariabe thr2Thread3of5ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:33:04,052 WARN L313 ript$VariableManager]: TermVariabe thr2Thread3of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:33:04,052 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread3of5ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:33:04,052 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread3of5ForFork0_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:33:04,052 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread3of5ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:33:04,053 WARN L313 ript$VariableManager]: TermVariabe thr2Thread3of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:33:04,053 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread3of5ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:33:04,053 WARN L313 ript$VariableManager]: TermVariabe thr2Thread3of5ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:33:04,053 WARN L313 ript$VariableManager]: TermVariabe thr2Thread3of5ForFork0_~k~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:33:04,053 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread3of5ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:33:04,057 WARN L313 ript$VariableManager]: TermVariabe thr2Thread4of5ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:33:04,058 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread4of5ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:33:04,058 WARN L313 ript$VariableManager]: TermVariabe thr2Thread4of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:33:04,058 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread4of5ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:33:04,058 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread4of5ForFork0_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:33:04,058 WARN L313 ript$VariableManager]: TermVariabe thr2Thread4of5ForFork0_~k~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:33:04,059 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread4of5ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:33:04,059 WARN L313 ript$VariableManager]: TermVariabe thr2Thread4of5ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:33:04,059 WARN L313 ript$VariableManager]: TermVariabe thr2Thread4of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:33:04,059 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread4of5ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:33:04,061 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread5of5ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:33:04,061 WARN L313 ript$VariableManager]: TermVariabe thr2Thread5of5ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:33:04,061 WARN L313 ript$VariableManager]: TermVariabe thr2Thread5of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:33:04,061 WARN L313 ript$VariableManager]: TermVariabe thr2Thread5of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:33:04,061 WARN L313 ript$VariableManager]: TermVariabe thr2Thread5of5ForFork0_~k~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:33:04,062 WARN L313 ript$VariableManager]: TermVariabe thr2Thread5of5ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:33:04,062 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread5of5ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:33:04,062 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread5of5ForFork0_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:33:04,062 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread5of5ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:33:04,062 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread5of5ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:33:04,063 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of5ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:33:04,063 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of5ForFork1_reach_error_#t~nondet4.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:33:04,064 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of5ForFork1_reach_error_#t~nondet4.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:33:04,064 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of5ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:33:04,064 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of5ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:33:04,064 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of5ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:33:04,064 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of5ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:33:04,064 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of5ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:33:04,066 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of5ForFork1_reach_error_#t~nondet4.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:33:04,066 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of5ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:33:04,066 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of5ForFork1_reach_error_#t~nondet4.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:33:04,066 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of5ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:33:04,066 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of5ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:33:04,066 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of5ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:33:04,067 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of5ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:33:04,067 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of5ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:33:04,068 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of5ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:33:04,068 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of5ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:33:04,068 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of5ForFork1_reach_error_#t~nondet4.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:33:04,068 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of5ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:33:04,068 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of5ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:33:04,069 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of5ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:33:04,069 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of5ForFork1_reach_error_#t~nondet4.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:33:04,069 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of5ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:33:04,072 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of5ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:33:04,072 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of5ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:33:04,072 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of5ForFork1_reach_error_#t~nondet4.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:33:04,072 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of5ForFork1_reach_error_#t~nondet4.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:33:04,072 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of5ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:33:04,073 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of5ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:33:04,073 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of5ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:33:04,073 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of5ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:33:04,075 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread5of5ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:33:04,075 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread5of5ForFork1_reach_error_#t~nondet4.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:33:04,075 WARN L313 ript$VariableManager]: TermVariabe thr1Thread5of5ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:33:04,076 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread5of5ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:33:04,076 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread5of5ForFork1_reach_error_#t~nondet4.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:33:04,076 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread5of5ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:33:04,076 WARN L313 ript$VariableManager]: TermVariabe thr1Thread5of5ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:33:04,076 WARN L313 ript$VariableManager]: TermVariabe thr1Thread5of5ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:33:04,077 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2020-10-22 02:33:04,078 INFO L253 AbstractCegarLoop]: Starting to check reachability of 8 error locations. [2020-10-22 02:33:04,078 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-22 02:33:04,078 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-22 02:33:04,078 INFO L379 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-22 02:33:04,079 INFO L380 AbstractCegarLoop]: Backedges is MCR [2020-10-22 02:33:04,079 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-22 02:33:04,079 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-22 02:33:04,079 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-22 02:33:04,079 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-22 02:33:04,083 INFO L137 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2020-10-22 02:33:04,083 INFO L144 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 221 places, 221 transitions, 532 flow [2020-10-22 02:33:04,083 INFO L110 LiptonReduction]: Starting Lipton reduction on Petri net that has 221 places, 221 transitions, 532 flow [2020-10-22 02:33:04,083 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 221 places, 221 transitions, 532 flow [2020-10-22 02:33:04,122 INFO L129 PetriNetUnfolder]: 19/231 cut-off events. [2020-10-22 02:33:04,122 INFO L130 PetriNetUnfolder]: For 30/30 co-relation queries the response was YES. [2020-10-22 02:33:04,125 INFO L80 FinitePrefix]: Finished finitePrefix Result has 269 conditions, 231 events. 19/231 cut-off events. For 30/30 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 563 event pairs, 0 based on Foata normal form. 0/205 useless extension candidates. Maximal degree in co-relation 258. Up to 12 conditions per place. [2020-10-22 02:33:04,141 INFO L116 LiptonReduction]: Number of co-enabled transitions 12884 [2020-10-22 02:33:04,563 WARN L193 SmtUtils]: Spent 241.00 ms on a formula simplification that was a NOOP. DAG size: 3 [2020-10-22 02:33:07,466 WARN L193 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 75 [2020-10-22 02:33:07,733 WARN L193 SmtUtils]: Spent 254.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 84 [2020-10-22 02:33:07,933 WARN L193 SmtUtils]: Spent 126.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 63 [2020-10-22 02:33:08,957 WARN L193 SmtUtils]: Spent 320.00 ms on a formula simplification that was a NOOP. DAG size: 151 [2020-10-22 02:33:09,230 WARN L193 SmtUtils]: Spent 269.00 ms on a formula simplification that was a NOOP. DAG size: 143 [2020-10-22 02:33:09,437 WARN L193 SmtUtils]: Spent 205.00 ms on a formula simplification that was a NOOP. DAG size: 129 [2020-10-22 02:33:09,837 WARN L193 SmtUtils]: Spent 397.00 ms on a formula simplification that was a NOOP. DAG size: 121 [2020-10-22 02:33:10,264 WARN L193 SmtUtils]: Spent 391.00 ms on a formula simplification. DAG size of input: 129 DAG size of output: 119 [2020-10-22 02:33:10,474 WARN L193 SmtUtils]: Spent 207.00 ms on a formula simplification that was a NOOP. DAG size: 117 [2020-10-22 02:33:10,497 INFO L131 LiptonReduction]: Checked pairs total: 24676 [2020-10-22 02:33:10,497 INFO L133 LiptonReduction]: Total number of compositions: 236 [2020-10-22 02:33:10,498 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 75 places, 58 transitions, 206 flow [2020-10-22 02:33:41,508 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 136082 states. [2020-10-22 02:33:41,508 INFO L276 IsEmpty]: Start isEmpty. Operand 136082 states. [2020-10-22 02:33:41,508 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2020-10-22 02:33:41,508 INFO L414 BasicCegarLoop]: Found error trace [2020-10-22 02:33:41,508 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1] [2020-10-22 02:33:41,508 INFO L429 AbstractCegarLoop]: === Iteration 1 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-22 02:33:41,509 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-22 02:33:41,509 INFO L82 PathProgramCache]: Analyzing trace with hash 1878250, now seen corresponding path program 1 times [2020-10-22 02:33:41,510 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-22 02:33:41,510 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1695562962] [2020-10-22 02:33:41,510 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-22 02:33:41,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-22 02:33:41,543 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-22 02:33:41,543 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1695562962] [2020-10-22 02:33:41,543 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-22 02:33:41,543 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2020-10-22 02:33:41,543 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [521295221] [2020-10-22 02:33:41,544 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-22 02:33:41,544 INFO L249 McrAutomatonBuilder]: Started intersection. [2020-10-22 02:33:41,544 INFO L252 McrAutomatonBuilder]: Finished intersection with 4 states and 3 transitions. [2020-10-22 02:33:41,544 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-22 02:33:41,545 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-10-22 02:33:41,545 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-22 02:33:41,545 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-22 02:33:41,545 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-22 02:33:41,545 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-22 02:33:41,545 INFO L87 Difference]: Start difference. First operand 136082 states. Second operand 3 states. [2020-10-22 02:33:48,515 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-22 02:33:48,515 INFO L93 Difference]: Finished difference Result 202471 states and 1266110 transitions. [2020-10-22 02:33:48,516 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-22 02:33:48,516 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 3 [2020-10-22 02:33:48,516 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-22 02:33:49,446 INFO L225 Difference]: With dead ends: 202471 [2020-10-22 02:33:49,446 INFO L226 Difference]: Without dead ends: 188716 [2020-10-22 02:33:49,446 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-22 02:33:53,116 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 188716 states. [2020-10-22 02:33:57,061 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 188716 to 160347. [2020-10-22 02:33:57,062 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 160347 states. [2020-10-22 02:34:05,594 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 160347 states to 160347 states and 1014762 transitions. [2020-10-22 02:34:05,594 INFO L78 Accepts]: Start accepts. Automaton has 160347 states and 1014762 transitions. Word has length 3 [2020-10-22 02:34:05,594 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-22 02:34:05,594 INFO L481 AbstractCegarLoop]: Abstraction has 160347 states and 1014762 transitions. [2020-10-22 02:34:05,595 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-22 02:34:05,595 INFO L276 IsEmpty]: Start isEmpty. Operand 160347 states and 1014762 transitions. [2020-10-22 02:34:05,595 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-10-22 02:34:05,595 INFO L414 BasicCegarLoop]: Found error trace [2020-10-22 02:34:05,595 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-22 02:34:05,595 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2020-10-22 02:34:05,595 INFO L429 AbstractCegarLoop]: === Iteration 2 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-22 02:34:05,596 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-22 02:34:05,596 INFO L82 PathProgramCache]: Analyzing trace with hash 167503586, now seen corresponding path program 1 times [2020-10-22 02:34:05,597 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-22 02:34:05,597 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [802151533] [2020-10-22 02:34:05,597 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-22 02:34:05,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-22 02:34:05,637 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-22 02:34:05,637 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [802151533] [2020-10-22 02:34:05,637 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-22 02:34:05,637 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-22 02:34:05,638 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [823584570] [2020-10-22 02:34:05,638 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-22 02:34:05,638 INFO L249 McrAutomatonBuilder]: Started intersection. [2020-10-22 02:34:05,639 INFO L252 McrAutomatonBuilder]: Finished intersection with 11 states and 10 transitions. [2020-10-22 02:34:05,639 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-22 02:34:05,640 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-10-22 02:34:05,640 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-22 02:34:05,640 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-22 02:34:05,640 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-22 02:34:05,640 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-22 02:34:05,640 INFO L87 Difference]: Start difference. First operand 160347 states and 1014762 transitions. Second operand 5 states. [2020-10-22 02:34:16,094 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-22 02:34:16,095 INFO L93 Difference]: Finished difference Result 305949 states and 1863760 transitions. [2020-10-22 02:34:16,095 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-22 02:34:16,095 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 10 [2020-10-22 02:34:16,095 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-22 02:34:18,859 INFO L225 Difference]: With dead ends: 305949 [2020-10-22 02:34:18,859 INFO L226 Difference]: Without dead ends: 305344 [2020-10-22 02:34:18,860 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-10-22 02:34:31,725 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 305344 states. [2020-10-22 02:34:38,821 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 305344 to 174575. [2020-10-22 02:34:38,821 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 174575 states. [2020-10-22 02:34:50,836 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 174575 states to 174575 states and 1122422 transitions. [2020-10-22 02:34:50,837 INFO L78 Accepts]: Start accepts. Automaton has 174575 states and 1122422 transitions. Word has length 10 [2020-10-22 02:34:50,837 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-22 02:34:50,837 INFO L481 AbstractCegarLoop]: Abstraction has 174575 states and 1122422 transitions. [2020-10-22 02:34:50,837 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-22 02:34:50,837 INFO L276 IsEmpty]: Start isEmpty. Operand 174575 states and 1122422 transitions. [2020-10-22 02:34:50,838 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2020-10-22 02:34:50,838 INFO L414 BasicCegarLoop]: Found error trace [2020-10-22 02:34:50,838 INFO L422 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-22 02:34:50,838 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2020-10-22 02:34:50,838 INFO L429 AbstractCegarLoop]: === Iteration 3 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-22 02:34:50,839 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-22 02:34:50,839 INFO L82 PathProgramCache]: Analyzing trace with hash 740467655, now seen corresponding path program 1 times [2020-10-22 02:34:50,847 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-22 02:34:50,848 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [922739570] [2020-10-22 02:34:50,848 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-22 02:34:50,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-22 02:34:50,897 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-10-22 02:34:50,898 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [922739570] [2020-10-22 02:34:50,898 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-22 02:34:50,898 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-22 02:34:50,898 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1367306807] [2020-10-22 02:34:50,898 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-22 02:34:50,899 INFO L249 McrAutomatonBuilder]: Started intersection. [2020-10-22 02:34:50,901 INFO L252 McrAutomatonBuilder]: Finished intersection with 15 states and 14 transitions. [2020-10-22 02:34:50,901 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-22 02:34:50,902 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-10-22 02:34:50,902 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-22 02:34:50,902 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-22 02:34:50,902 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-22 02:34:50,902 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-22 02:34:50,903 INFO L87 Difference]: Start difference. First operand 174575 states and 1122422 transitions. Second operand 5 states. [2020-10-22 02:35:04,574 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-22 02:35:04,575 INFO L93 Difference]: Finished difference Result 364546 states and 2226789 transitions. [2020-10-22 02:35:04,575 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-22 02:35:04,575 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 14 [2020-10-22 02:35:04,575 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-22 02:35:07,221 INFO L225 Difference]: With dead ends: 364546 [2020-10-22 02:35:07,221 INFO L226 Difference]: Without dead ends: 363946 [2020-10-22 02:35:07,221 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-10-22 02:35:11,802 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 363946 states. [2020-10-22 02:35:18,777 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 363946 to 196959. [2020-10-22 02:35:18,778 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 196959 states. [2020-10-22 02:35:31,017 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 196959 states to 196959 states and 1268508 transitions. [2020-10-22 02:35:31,018 INFO L78 Accepts]: Start accepts. Automaton has 196959 states and 1268508 transitions. Word has length 14 [2020-10-22 02:35:31,018 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-22 02:35:31,018 INFO L481 AbstractCegarLoop]: Abstraction has 196959 states and 1268508 transitions. [2020-10-22 02:35:31,018 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-22 02:35:31,018 INFO L276 IsEmpty]: Start isEmpty. Operand 196959 states and 1268508 transitions. [2020-10-22 02:35:31,019 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-10-22 02:35:31,019 INFO L414 BasicCegarLoop]: Found error trace [2020-10-22 02:35:31,019 INFO L422 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-22 02:35:31,019 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2020-10-22 02:35:31,019 INFO L429 AbstractCegarLoop]: === Iteration 4 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-22 02:35:31,020 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-22 02:35:31,020 INFO L82 PathProgramCache]: Analyzing trace with hash 807450510, now seen corresponding path program 1 times [2020-10-22 02:35:31,023 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-22 02:35:31,023 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1665376383] [2020-10-22 02:35:31,023 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-22 02:35:31,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-22 02:35:31,056 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-22 02:35:31,056 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1665376383] [2020-10-22 02:35:31,057 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-22 02:35:31,057 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-22 02:35:31,057 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [2028658014] [2020-10-22 02:35:31,057 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-22 02:35:31,059 INFO L249 McrAutomatonBuilder]: Started intersection. [2020-10-22 02:35:31,064 INFO L252 McrAutomatonBuilder]: Finished intersection with 32 states and 45 transitions. [2020-10-22 02:35:31,065 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-22 02:35:31,208 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-10-22 02:35:31,209 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-22 02:35:31,209 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-22 02:35:31,209 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-22 02:35:31,209 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-22 02:35:31,209 INFO L87 Difference]: Start difference. First operand 196959 states and 1268508 transitions. Second operand 3 states. [2020-10-22 02:35:31,387 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-22 02:35:31,387 INFO L93 Difference]: Finished difference Result 34387 states and 138301 transitions. [2020-10-22 02:35:31,388 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-22 02:35:31,388 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 17 [2020-10-22 02:35:31,388 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-22 02:35:31,467 INFO L225 Difference]: With dead ends: 34387 [2020-10-22 02:35:31,467 INFO L226 Difference]: Without dead ends: 34387 [2020-10-22 02:35:31,467 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 15 SyntacticMatches, 1 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-22 02:35:31,847 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34387 states. [2020-10-22 02:35:34,172 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34387 to 33796. [2020-10-22 02:35:34,173 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 33796 states. [2020-10-22 02:35:34,265 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33796 states to 33796 states and 136160 transitions. [2020-10-22 02:35:34,265 INFO L78 Accepts]: Start accepts. Automaton has 33796 states and 136160 transitions. Word has length 17 [2020-10-22 02:35:34,266 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-22 02:35:34,266 INFO L481 AbstractCegarLoop]: Abstraction has 33796 states and 136160 transitions. [2020-10-22 02:35:34,266 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-22 02:35:34,266 INFO L276 IsEmpty]: Start isEmpty. Operand 33796 states and 136160 transitions. [2020-10-22 02:35:34,266 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2020-10-22 02:35:34,266 INFO L414 BasicCegarLoop]: Found error trace [2020-10-22 02:35:34,266 INFO L422 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-22 02:35:34,267 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2020-10-22 02:35:34,267 INFO L429 AbstractCegarLoop]: === Iteration 5 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-22 02:35:34,267 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-22 02:35:34,267 INFO L82 PathProgramCache]: Analyzing trace with hash 1961376418, now seen corresponding path program 1 times [2020-10-22 02:35:34,268 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-22 02:35:34,268 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1497720445] [2020-10-22 02:35:34,268 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-22 02:35:34,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-22 02:35:34,328 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-22 02:35:34,328 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1497720445] [2020-10-22 02:35:34,328 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [731897241] [2020-10-22 02:35:34,329 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-22 02:35:34,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-22 02:35:34,419 INFO L263 TraceCheckSpWp]: Trace formula consists of 151 conjuncts, 7 conjunts are in the unsatisfiable core [2020-10-22 02:35:34,425 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-22 02:35:34,509 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-22 02:35:34,510 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-10-22 02:35:34,510 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 10 [2020-10-22 02:35:34,510 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [268153143] [2020-10-22 02:35:34,510 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-22 02:35:34,512 INFO L249 McrAutomatonBuilder]: Started intersection. [2020-10-22 02:35:34,519 INFO L252 McrAutomatonBuilder]: Finished intersection with 35 states and 50 transitions. [2020-10-22 02:35:34,519 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-22 02:35:34,734 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 2 new interpolants: [2311183#(<= (+ ~x~0 5) ~n~0), 2311182#(<= (+ thr2Thread1of5ForFork0_~t~0 5) ~n~0)] [2020-10-22 02:35:34,735 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-22 02:35:34,735 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-22 02:35:34,735 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-22 02:35:34,735 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=135, Unknown=0, NotChecked=0, Total=182 [2020-10-22 02:35:34,736 INFO L87 Difference]: Start difference. First operand 33796 states and 136160 transitions. Second operand 9 states. [2020-10-22 02:35:35,562 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-22 02:35:35,563 INFO L93 Difference]: Finished difference Result 78665 states and 306312 transitions. [2020-10-22 02:35:35,563 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-10-22 02:35:35,563 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 18 [2020-10-22 02:35:35,563 INFO L84 Accepts]: Finished accepts. some prefix is accepted. Received shutdown request... [2020-10-22 02:35:38,818 INFO L225 Difference]: With dead ends: 78665 [2020-10-22 02:35:38,818 INFO L226 Difference]: Without dead ends: 78479 [2020-10-22 02:35:38,818 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 72 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=129, Invalid=333, Unknown=0, NotChecked=0, Total=462 [2020-10-22 02:35:39,394 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 78479 states. [2020-10-22 02:35:39,595 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29,5 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-22 02:35:39,600 WARN L546 AbstractCegarLoop]: Verification canceled [2020-10-22 02:35:39,602 WARN L235 ceAbstractionStarter]: Timeout [2020-10-22 02:35:39,603 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.10 02:35:39 BasicIcfg [2020-10-22 02:35:39,603 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-22 02:35:39,605 INFO L168 Benchmark]: Toolchain (without parser) took 193891.89 ms. Allocated memory was 140.5 MB in the beginning and 3.6 GB in the end (delta: 3.4 GB). Free memory was 102.0 MB in the beginning and 2.5 GB in the end (delta: -2.4 GB). Peak memory consumption was 5.4 GB. Max. memory is 7.1 GB. [2020-10-22 02:35:39,605 INFO L168 Benchmark]: CDTParser took 3.02 ms. Allocated memory is still 140.5 MB. Free memory was 122.1 MB in the beginning and 121.6 MB in the end (delta: 419.7 kB). Peak memory consumption was 419.7 kB. Max. memory is 7.1 GB. [2020-10-22 02:35:39,606 INFO L168 Benchmark]: CACSL2BoogieTranslator took 701.71 ms. Allocated memory was 140.5 MB in the beginning and 203.9 MB in the end (delta: 63.4 MB). Free memory was 101.1 MB in the beginning and 158.6 MB in the end (delta: -57.5 MB). Peak memory consumption was 22.9 MB. Max. memory is 7.1 GB. [2020-10-22 02:35:39,606 INFO L168 Benchmark]: Boogie Procedure Inliner took 62.04 ms. Allocated memory is still 203.9 MB. Free memory was 158.6 MB in the beginning and 156.7 MB in the end (delta: 1.9 MB). Peak memory consumption was 1.9 MB. Max. memory is 7.1 GB. [2020-10-22 02:35:39,607 INFO L168 Benchmark]: Boogie Preprocessor took 29.39 ms. Allocated memory is still 203.9 MB. Free memory was 156.7 MB in the beginning and 154.7 MB in the end (delta: 1.9 MB). Peak memory consumption was 1.9 MB. Max. memory is 7.1 GB. [2020-10-22 02:35:39,607 INFO L168 Benchmark]: RCFGBuilder took 474.18 ms. Allocated memory is still 203.9 MB. Free memory was 154.7 MB in the beginning and 129.8 MB in the end (delta: 24.9 MB). Peak memory consumption was 24.9 MB. Max. memory is 7.1 GB. [2020-10-22 02:35:39,607 INFO L168 Benchmark]: TraceAbstraction took 192614.01 ms. Allocated memory was 203.9 MB in the beginning and 3.6 GB in the end (delta: 3.4 GB). Free memory was 128.9 MB in the beginning and 2.5 GB in the end (delta: -2.4 GB). Peak memory consumption was 5.3 GB. Max. memory is 7.1 GB. [2020-10-22 02:35:39,610 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 3.02 ms. Allocated memory is still 140.5 MB. Free memory was 122.1 MB in the beginning and 121.6 MB in the end (delta: 419.7 kB). Peak memory consumption was 419.7 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 701.71 ms. Allocated memory was 140.5 MB in the beginning and 203.9 MB in the end (delta: 63.4 MB). Free memory was 101.1 MB in the beginning and 158.6 MB in the end (delta: -57.5 MB). Peak memory consumption was 22.9 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 62.04 ms. Allocated memory is still 203.9 MB. Free memory was 158.6 MB in the beginning and 156.7 MB in the end (delta: 1.9 MB). Peak memory consumption was 1.9 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 29.39 ms. Allocated memory is still 203.9 MB. Free memory was 156.7 MB in the beginning and 154.7 MB in the end (delta: 1.9 MB). Peak memory consumption was 1.9 MB. Max. memory is 7.1 GB. * RCFGBuilder took 474.18 ms. Allocated memory is still 203.9 MB. Free memory was 154.7 MB in the beginning and 129.8 MB in the end (delta: 24.9 MB). Peak memory consumption was 24.9 MB. Max. memory is 7.1 GB. * TraceAbstraction took 192614.01 ms. Allocated memory was 203.9 MB in the beginning and 3.6 GB in the end (delta: 3.4 GB). Free memory was 128.9 MB in the beginning and 2.5 GB in the end (delta: -2.4 GB). Peak memory consumption was 5.3 GB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks 934 VarBasedMoverChecksPositive, 7 VarBasedMoverChecksNegative, 0 SemBasedMoverChecksPositive, 0 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.0s, 3 CheckedPairsTotal, LiptonReductionStatistics: ReductionTime: 3.5s, 85 PlacesBefore, 18 PlacesAfterwards, 85 TransitionsBefore, 12 TransitionsAfterwards, 1612 CoEnabledTransitionPairs, 6 FixpointIterations, 32 TrivialSequentialCompositions, 41 ConcurrentSequentialCompositions, 1 TrivialYvCompositions, 14 ConcurrentYvCompositions, 6 ChoiceCompositions, 94 TotalNumberOfCompositions, 1592 MoverChecksTotal - StatisticsResult: PetriNetLargeBlockEncoding benchmarks 1914 VarBasedMoverChecksPositive, 30 VarBasedMoverChecksNegative, 0 SemBasedMoverChecksPositive, 0 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.0s, 66 CheckedPairsTotal, LiptonReductionStatistics: ReductionTime: 3.8s, 119 PlacesBefore, 35 PlacesAfterwards, 119 TransitionsBefore, 27 TransitionsAfterwards, 3404 CoEnabledTransitionPairs, 6 FixpointIterations, 45 TrivialSequentialCompositions, 50 ConcurrentSequentialCompositions, 5 TrivialYvCompositions, 15 ConcurrentYvCompositions, 8 ChoiceCompositions, 123 TotalNumberOfCompositions, 4884 MoverChecksTotal - StatisticsResult: PetriNetLargeBlockEncoding benchmarks 3406 VarBasedMoverChecksPositive, 39 VarBasedMoverChecksNegative, 0 SemBasedMoverChecksPositive, 0 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.0s, 117 CheckedPairsTotal, LiptonReductionStatistics: ReductionTime: 4.2s, 153 PlacesBefore, 49 PlacesAfterwards, 153 TransitionsBefore, 38 TransitionsAfterwards, 5880 CoEnabledTransitionPairs, 6 FixpointIterations, 64 TrivialSequentialCompositions, 65 ConcurrentSequentialCompositions, 8 TrivialYvCompositions, 20 ConcurrentYvCompositions, 11 ChoiceCompositions, 168 TotalNumberOfCompositions, 10116 MoverChecksTotal - StatisticsResult: PetriNetLargeBlockEncoding benchmarks 5056 VarBasedMoverChecksPositive, 49 VarBasedMoverChecksNegative, 0 SemBasedMoverChecksPositive, 0 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.0s, 171 CheckedPairsTotal, LiptonReductionStatistics: ReductionTime: 4.5s, 187 PlacesBefore, 61 PlacesAfterwards, 187 TransitionsBefore, 47 TransitionsAfterwards, 9040 CoEnabledTransitionPairs, 7 FixpointIterations, 76 TrivialSequentialCompositions, 74 ConcurrentSequentialCompositions, 11 TrivialYvCompositions, 24 ConcurrentYvCompositions, 14 ChoiceCompositions, 199 TotalNumberOfCompositions, 17332 MoverChecksTotal - StatisticsResult: PetriNetLargeBlockEncoding benchmarks 7184 VarBasedMoverChecksPositive, 74 VarBasedMoverChecksNegative, 0 SemBasedMoverChecksPositive, 0 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.0s, 294 CheckedPairsTotal, LiptonReductionStatistics: ReductionTime: 6.4s, 221 PlacesBefore, 75 PlacesAfterwards, 221 TransitionsBefore, 58 TransitionsAfterwards, 12884 CoEnabledTransitionPairs, 7 FixpointIterations, 92 TrivialSequentialCompositions, 91 ConcurrentSequentialCompositions, 19 TrivialYvCompositions, 17 ConcurrentYvCompositions, 17 ChoiceCompositions, 236 TotalNumberOfCompositions, 24676 MoverChecksTotal - TimeoutResultAtElement [Line: 683]: Timeout (TraceAbstraction) Unable to prove that call of __VERIFIER_error() unreachable (line 683). Cancelled while executing MinimizeSevpa. - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 79 locations, 1 error locations. Started 5 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 192.2s, OverallIterations: 30, TraceHistogramMax: 5, AutomataDifference: 48.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 55.2s, HoareTripleCheckerStatistics: 1028 SDtfs, 3462 SDslu, 2164 SDs, 0 SdLazy, 2868 SolverSat, 185 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 2.5s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 369 GetRequests, 178 SyntacticMatches, 4 SemanticMatches, 187 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 397 ImplicationChecksByTransitivity, 2.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=196959occurred in iteration=3, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 82.3s AutomataMinimizationTime, 26 MinimizatonAttempts, 394711 StatesRemovedByMinimization, 22 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 2.0s InterpolantComputationTime, 489 NumberOfCodeBlocks, 489 NumberOfCodeBlocksAsserted, 34 NumberOfCheckSat, 397 ConstructedInterpolants, 0 QuantifiedInterpolants, 40171 SizeOfPredicates, 16 NumberOfNonLiveVariables, 628 ConjunctsInSsa, 28 ConjunctsInUnsatCore, 30 InterpolantComputations, 22 PerfectInterpolantSequences, 54/82 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