/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/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-SemanticLbe.epf -i ../../../trunk/examples/svcomp/pthread-ext/01_inc.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-4336eb1 [2019-12-27 00:48:38,406 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-12-27 00:48:38,408 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-12-27 00:48:38,422 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-12-27 00:48:38,422 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-12-27 00:48:38,425 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-12-27 00:48:38,426 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-12-27 00:48:38,431 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-12-27 00:48:38,436 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-12-27 00:48:38,437 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-12-27 00:48:38,438 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-12-27 00:48:38,442 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-12-27 00:48:38,442 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-12-27 00:48:38,445 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-12-27 00:48:38,446 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-12-27 00:48:38,447 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-12-27 00:48:38,449 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-12-27 00:48:38,452 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-12-27 00:48:38,454 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-12-27 00:48:38,457 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-12-27 00:48:38,459 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-12-27 00:48:38,460 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-12-27 00:48:38,460 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-12-27 00:48:38,463 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-12-27 00:48:38,467 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-12-27 00:48:38,467 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-12-27 00:48:38,467 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-12-27 00:48:38,469 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-12-27 00:48:38,471 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-12-27 00:48:38,472 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-12-27 00:48:38,473 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-12-27 00:48:38,474 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-12-27 00:48:38,475 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-12-27 00:48:38,476 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-12-27 00:48:38,479 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-12-27 00:48:38,480 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-12-27 00:48:38,481 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-12-27 00:48:38,481 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-12-27 00:48:38,482 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-12-27 00:48:38,485 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-12-27 00:48:38,486 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-12-27 00:48:38,487 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-SemanticLbe.epf [2019-12-27 00:48:38,506 INFO L113 SettingsManager]: Loading preferences was successful [2019-12-27 00:48:38,506 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-12-27 00:48:38,508 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-12-27 00:48:38,508 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-12-27 00:48:38,508 INFO L138 SettingsManager]: * Use SBE=true [2019-12-27 00:48:38,508 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-12-27 00:48:38,508 INFO L138 SettingsManager]: * sizeof long=4 [2019-12-27 00:48:38,509 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-12-27 00:48:38,509 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-12-27 00:48:38,509 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-12-27 00:48:38,509 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-12-27 00:48:38,509 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-12-27 00:48:38,509 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-12-27 00:48:38,510 INFO L138 SettingsManager]: * sizeof long double=12 [2019-12-27 00:48:38,510 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-12-27 00:48:38,510 INFO L138 SettingsManager]: * Use constant arrays=true [2019-12-27 00:48:38,510 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-12-27 00:48:38,510 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-12-27 00:48:38,511 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-12-27 00:48:38,511 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-12-27 00:48:38,511 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-12-27 00:48:38,511 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-12-27 00:48:38,511 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-12-27 00:48:38,512 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-12-27 00:48:38,512 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-12-27 00:48:38,512 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-12-27 00:48:38,512 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-12-27 00:48:38,512 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-12-27 00:48:38,512 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-12-27 00:48:38,774 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-12-27 00:48:38,786 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-12-27 00:48:38,789 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-12-27 00:48:38,791 INFO L271 PluginConnector]: Initializing CDTParser... [2019-12-27 00:48:38,791 INFO L275 PluginConnector]: CDTParser initialized [2019-12-27 00:48:38,792 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-ext/01_inc.i [2019-12-27 00:48:38,848 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/dfce6b52b/62f3af151e4147d397a59cdefde155d0/FLAGd4ffd2774 [2019-12-27 00:48:39,335 INFO L306 CDTParser]: Found 1 translation units. [2019-12-27 00:48:39,336 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-ext/01_inc.i [2019-12-27 00:48:39,358 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/dfce6b52b/62f3af151e4147d397a59cdefde155d0/FLAGd4ffd2774 [2019-12-27 00:48:39,625 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/dfce6b52b/62f3af151e4147d397a59cdefde155d0 [2019-12-27 00:48:39,634 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-12-27 00:48:39,636 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2019-12-27 00:48:39,637 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-12-27 00:48:39,637 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-12-27 00:48:39,640 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-12-27 00:48:39,641 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.12 12:48:39" (1/1) ... [2019-12-27 00:48:39,644 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1785c967 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 12:48:39, skipping insertion in model container [2019-12-27 00:48:39,644 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.12 12:48:39" (1/1) ... [2019-12-27 00:48:39,651 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-12-27 00:48:39,690 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-12-27 00:48:40,186 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-27 00:48:40,200 INFO L203 MainTranslator]: Completed pre-run [2019-12-27 00:48:40,256 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-27 00:48:40,325 INFO L208 MainTranslator]: Completed translation [2019-12-27 00:48:40,326 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 12:48:40 WrapperNode [2019-12-27 00:48:40,326 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-12-27 00:48:40,327 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-12-27 00:48:40,327 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-12-27 00:48:40,327 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-12-27 00:48:40,335 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 12:48:40" (1/1) ... [2019-12-27 00:48:40,351 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 12:48:40" (1/1) ... [2019-12-27 00:48:40,371 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-12-27 00:48:40,371 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-12-27 00:48:40,371 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-12-27 00:48:40,372 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-12-27 00:48:40,380 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 12:48:40" (1/1) ... [2019-12-27 00:48:40,380 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 12:48:40" (1/1) ... [2019-12-27 00:48:40,383 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 12:48:40" (1/1) ... [2019-12-27 00:48:40,383 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 12:48:40" (1/1) ... [2019-12-27 00:48:40,388 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 12:48:40" (1/1) ... [2019-12-27 00:48:40,392 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 12:48:40" (1/1) ... [2019-12-27 00:48:40,394 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 12:48:40" (1/1) ... [2019-12-27 00:48:40,397 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-12-27 00:48:40,397 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-12-27 00:48:40,397 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-12-27 00:48:40,397 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-12-27 00:48:40,398 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 12:48:40" (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 [2019-12-27 00:48:40,466 INFO L130 BoogieDeclarations]: Found specification of procedure thr1 [2019-12-27 00:48:40,466 INFO L138 BoogieDeclarations]: Found implementation of procedure thr1 [2019-12-27 00:48:40,466 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-12-27 00:48:40,466 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-12-27 00:48:40,466 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-12-27 00:48:40,467 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-12-27 00:48:40,467 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-12-27 00:48:40,468 WARN L205 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2019-12-27 00:48:40,590 INFO L1525 $ProcedureCfgBuilder]: dropping label inside atomic statement: __VERIFIER_atomic_acquire_returnLabel [2019-12-27 00:48:40,591 INFO L1525 $ProcedureCfgBuilder]: dropping label inside atomic statement: __VERIFIER_atomic_release_returnLabel [2019-12-27 00:48:40,592 INFO L1525 $ProcedureCfgBuilder]: dropping label inside atomic statement: __VERIFIER_atomic_release_returnLabel#2 [2019-12-27 00:48:40,786 INFO L282 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-12-27 00:48:40,786 INFO L287 CfgBuilder]: Removed 5 assume(true) statements. [2019-12-27 00:48:40,788 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.12 12:48:40 BoogieIcfgContainer [2019-12-27 00:48:40,788 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-12-27 00:48:40,789 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-12-27 00:48:40,789 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-12-27 00:48:40,792 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-12-27 00:48:40,792 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 27.12 12:48:39" (1/3) ... [2019-12-27 00:48:40,793 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@29f0d688 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.12 12:48:40, skipping insertion in model container [2019-12-27 00:48:40,793 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 12:48:40" (2/3) ... [2019-12-27 00:48:40,794 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@29f0d688 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.12 12:48:40, skipping insertion in model container [2019-12-27 00:48:40,794 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.12 12:48:40" (3/3) ... [2019-12-27 00:48:40,796 INFO L109 eAbstractionObserver]: Analyzing ICFG 01_inc.i [2019-12-27 00:48:40,808 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2019-12-27 00:48:40,808 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-12-27 00:48:40,814 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-12-27 00:48:40,815 INFO L340 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2019-12-27 00:48:40,837 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:48:40,838 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:48:40,838 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:48:40,838 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:48:40,838 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~v~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:48:40,839 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:48:40,839 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:48:40,839 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~v~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:48:40,840 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~v~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:48:40,840 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~v~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:48:40,841 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~v~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:48:40,841 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:48:40,841 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:48:40,845 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:48:40,846 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:48:40,846 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:48:40,846 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~v~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:48:40,847 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:48:40,865 INFO L249 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2019-12-27 00:48:40,883 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-12-27 00:48:40,883 INFO L374 AbstractCegarLoop]: Hoare is true [2019-12-27 00:48:40,884 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-12-27 00:48:40,884 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-12-27 00:48:40,884 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-12-27 00:48:40,884 INFO L378 AbstractCegarLoop]: Difference is false [2019-12-27 00:48:40,884 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-12-27 00:48:40,884 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-12-27 00:48:40,895 INFO L152 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 32 places, 32 transitions [2019-12-27 00:48:40,897 INFO L68 FinitePrefix]: Start finitePrefix. Operand has 32 places, 32 transitions [2019-12-27 00:48:40,933 INFO L132 PetriNetUnfolder]: 4/40 cut-off events. [2019-12-27 00:48:40,934 INFO L133 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2019-12-27 00:48:40,940 INFO L76 FinitePrefix]: Finished finitePrefix Result has 45 conditions, 40 events. 4/40 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 65 event pairs. 0/33 useless extension candidates. Maximal degree in co-relation 22. Up to 4 conditions per place. [2019-12-27 00:48:40,942 INFO L68 FinitePrefix]: Start finitePrefix. Operand has 32 places, 32 transitions [2019-12-27 00:48:40,957 INFO L132 PetriNetUnfolder]: 4/40 cut-off events. [2019-12-27 00:48:40,957 INFO L133 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2019-12-27 00:48:40,958 INFO L76 FinitePrefix]: Finished finitePrefix Result has 45 conditions, 40 events. 4/40 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 65 event pairs. 0/33 useless extension candidates. Maximal degree in co-relation 22. Up to 4 conditions per place. [2019-12-27 00:48:40,960 INFO L158 etLargeBlockEncoding]: Number of co-enabled transitions 260 [2019-12-27 00:48:40,961 INFO L170 etLargeBlockEncoding]: Semantic Check. [2019-12-27 00:48:41,924 INFO L206 etLargeBlockEncoding]: Checked pairs total: 191 [2019-12-27 00:48:41,924 INFO L214 etLargeBlockEncoding]: Total number of compositions: 30 [2019-12-27 00:48:41,929 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 9 places, 8 transitions [2019-12-27 00:48:41,941 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 19 states. [2019-12-27 00:48:41,943 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states. [2019-12-27 00:48:41,958 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2019-12-27 00:48:41,958 INFO L403 BasicCegarLoop]: Found error trace [2019-12-27 00:48:41,959 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2019-12-27 00:48:41,960 INFO L410 AbstractCegarLoop]: === Iteration 1 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION]=== [2019-12-27 00:48:41,968 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-27 00:48:41,968 INFO L82 PathProgramCache]: Analyzing trace with hash 4724429, now seen corresponding path program 1 times [2019-12-27 00:48:41,979 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-27 00:48:41,980 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [581447345] [2019-12-27 00:48:41,980 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-27 00:48:42,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-27 00:48:42,147 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-27 00:48:42,148 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [581447345] [2019-12-27 00:48:42,149 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-27 00:48:42,149 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2019-12-27 00:48:42,150 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [321318026] [2019-12-27 00:48:42,155 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-12-27 00:48:42,155 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-27 00:48:42,168 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-12-27 00:48:42,169 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-12-27 00:48:42,171 INFO L87 Difference]: Start difference. First operand 19 states. Second operand 2 states. [2019-12-27 00:48:42,184 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-27 00:48:42,185 INFO L93 Difference]: Finished difference Result 11 states and 13 transitions. [2019-12-27 00:48:42,185 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-12-27 00:48:42,186 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 4 [2019-12-27 00:48:42,187 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-27 00:48:42,196 INFO L225 Difference]: With dead ends: 11 [2019-12-27 00:48:42,196 INFO L226 Difference]: Without dead ends: 11 [2019-12-27 00:48:42,198 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-12-27 00:48:42,216 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11 states. [2019-12-27 00:48:42,229 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11 to 11. [2019-12-27 00:48:42,231 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2019-12-27 00:48:42,231 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 13 transitions. [2019-12-27 00:48:42,233 INFO L78 Accepts]: Start accepts. Automaton has 11 states and 13 transitions. Word has length 4 [2019-12-27 00:48:42,233 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-27 00:48:42,233 INFO L462 AbstractCegarLoop]: Abstraction has 11 states and 13 transitions. [2019-12-27 00:48:42,233 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-12-27 00:48:42,233 INFO L276 IsEmpty]: Start isEmpty. Operand 11 states and 13 transitions. [2019-12-27 00:48:42,234 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2019-12-27 00:48:42,234 INFO L403 BasicCegarLoop]: Found error trace [2019-12-27 00:48:42,234 INFO L411 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1] [2019-12-27 00:48:42,234 INFO L410 AbstractCegarLoop]: === Iteration 2 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION]=== [2019-12-27 00:48:42,235 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-27 00:48:42,235 INFO L82 PathProgramCache]: Analyzing trace with hash 245171091, now seen corresponding path program 1 times [2019-12-27 00:48:42,235 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-27 00:48:42,236 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [192847352] [2019-12-27 00:48:42,236 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-27 00:48:42,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-27 00:48:42,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-27 00:48:42,323 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-27 00:48:42,323 INFO L476 BasicCegarLoop]: Counterexample might be feasible [2019-12-27 00:48:42,325 WARN L364 ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis [2019-12-27 00:48:42,325 INFO L340 ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances. [2019-12-27 00:48:42,335 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:48:42,336 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:48:42,336 WARN L315 ript$VariableManager]: TermVariabe thr1Thread2of2ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:48:42,336 WARN L315 ript$VariableManager]: TermVariabe thr1Thread2of2ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:48:42,336 WARN L315 ript$VariableManager]: TermVariabe thr1Thread2of2ForFork0_~v~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:48:42,337 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:48:42,337 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:48:42,337 WARN L315 ript$VariableManager]: TermVariabe thr1Thread2of2ForFork0_~v~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:48:42,338 WARN L315 ript$VariableManager]: TermVariabe thr1Thread2of2ForFork0_~v~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:48:42,338 WARN L315 ript$VariableManager]: TermVariabe thr1Thread2of2ForFork0_~v~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:48:42,339 WARN L315 ript$VariableManager]: TermVariabe thr1Thread2of2ForFork0_~v~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:48:42,343 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:48:42,344 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:48:42,345 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:48:42,345 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:48:42,353 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of2ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:48:42,353 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of2ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:48:42,353 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of2ForFork0_~v~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:48:42,354 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:48:42,354 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:48:42,354 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of2ForFork0_~v~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:48:42,354 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of2ForFork0_~v~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:48:42,355 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of2ForFork0_~v~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:48:42,356 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of2ForFork0_~v~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:48:42,356 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:48:42,356 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:48:42,357 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:48:42,357 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of2ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:48:42,358 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of2ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:48:42,358 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of2ForFork0_~v~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:48:42,358 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:48:42,363 WARN L315 ript$VariableManager]: TermVariabe thr1Thread2of2ForFork0_~v~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:48:42,364 WARN L315 ript$VariableManager]: TermVariabe thr1Thread2of2ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:48:42,364 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:48:42,364 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:48:42,364 WARN L315 ript$VariableManager]: TermVariabe thr1Thread2of2ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:48:42,367 INFO L249 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2019-12-27 00:48:42,368 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-12-27 00:48:42,368 INFO L374 AbstractCegarLoop]: Hoare is true [2019-12-27 00:48:42,368 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-12-27 00:48:42,368 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-12-27 00:48:42,368 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-12-27 00:48:42,368 INFO L378 AbstractCegarLoop]: Difference is false [2019-12-27 00:48:42,368 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-12-27 00:48:42,368 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-12-27 00:48:42,371 INFO L152 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 46 places, 46 transitions [2019-12-27 00:48:42,371 INFO L68 FinitePrefix]: Start finitePrefix. Operand has 46 places, 46 transitions [2019-12-27 00:48:42,388 INFO L132 PetriNetUnfolder]: 7/63 cut-off events. [2019-12-27 00:48:42,388 INFO L133 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2019-12-27 00:48:42,390 INFO L76 FinitePrefix]: Finished finitePrefix Result has 73 conditions, 63 events. 7/63 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 141 event pairs. 0/51 useless extension candidates. Maximal degree in co-relation 41. Up to 6 conditions per place. [2019-12-27 00:48:42,393 INFO L68 FinitePrefix]: Start finitePrefix. Operand has 46 places, 46 transitions [2019-12-27 00:48:42,407 INFO L132 PetriNetUnfolder]: 7/63 cut-off events. [2019-12-27 00:48:42,408 INFO L133 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2019-12-27 00:48:42,410 INFO L76 FinitePrefix]: Finished finitePrefix Result has 73 conditions, 63 events. 7/63 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 141 event pairs. 0/51 useless extension candidates. Maximal degree in co-relation 41. Up to 6 conditions per place. [2019-12-27 00:48:42,413 INFO L158 etLargeBlockEncoding]: Number of co-enabled transitions 884 [2019-12-27 00:48:42,413 INFO L170 etLargeBlockEncoding]: Semantic Check. [2019-12-27 00:48:43,066 INFO L206 etLargeBlockEncoding]: Checked pairs total: 2180 [2019-12-27 00:48:43,066 INFO L214 etLargeBlockEncoding]: Total number of compositions: 26 [2019-12-27 00:48:43,067 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 22 places, 22 transitions [2019-12-27 00:48:43,083 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 312 states. [2019-12-27 00:48:43,083 INFO L276 IsEmpty]: Start isEmpty. Operand 312 states. [2019-12-27 00:48:43,085 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2019-12-27 00:48:43,085 INFO L403 BasicCegarLoop]: Found error trace [2019-12-27 00:48:43,085 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2019-12-27 00:48:43,086 INFO L410 AbstractCegarLoop]: === Iteration 1 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-27 00:48:43,086 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-27 00:48:43,086 INFO L82 PathProgramCache]: Analyzing trace with hash 1963880529, now seen corresponding path program 1 times [2019-12-27 00:48:43,086 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-27 00:48:43,087 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2007570357] [2019-12-27 00:48:43,087 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-27 00:48:43,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-27 00:48:43,263 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-27 00:48:43,264 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2007570357] [2019-12-27 00:48:43,264 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-27 00:48:43,264 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-12-27 00:48:43,264 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1666254797] [2019-12-27 00:48:43,266 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-12-27 00:48:43,266 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-27 00:48:43,267 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-12-27 00:48:43,267 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-12-27 00:48:43,267 INFO L87 Difference]: Start difference. First operand 312 states. Second operand 5 states. [2019-12-27 00:48:43,449 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-27 00:48:43,449 INFO L93 Difference]: Finished difference Result 325 states and 780 transitions. [2019-12-27 00:48:43,451 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-12-27 00:48:43,451 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 8 [2019-12-27 00:48:43,451 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-27 00:48:43,462 INFO L225 Difference]: With dead ends: 325 [2019-12-27 00:48:43,462 INFO L226 Difference]: Without dead ends: 325 [2019-12-27 00:48:43,463 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2019-12-27 00:48:43,470 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 325 states. [2019-12-27 00:48:43,512 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 325 to 261. [2019-12-27 00:48:43,512 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 261 states. [2019-12-27 00:48:43,516 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 261 states to 261 states and 652 transitions. [2019-12-27 00:48:43,516 INFO L78 Accepts]: Start accepts. Automaton has 261 states and 652 transitions. Word has length 8 [2019-12-27 00:48:43,517 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-27 00:48:43,517 INFO L462 AbstractCegarLoop]: Abstraction has 261 states and 652 transitions. [2019-12-27 00:48:43,517 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-12-27 00:48:43,517 INFO L276 IsEmpty]: Start isEmpty. Operand 261 states and 652 transitions. [2019-12-27 00:48:43,518 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2019-12-27 00:48:43,518 INFO L403 BasicCegarLoop]: Found error trace [2019-12-27 00:48:43,518 INFO L411 BasicCegarLoop]: trace histogram [3, 2, 1, 1, 1, 1] [2019-12-27 00:48:43,518 INFO L410 AbstractCegarLoop]: === Iteration 2 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-27 00:48:43,519 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-27 00:48:43,519 INFO L82 PathProgramCache]: Analyzing trace with hash -167871164, now seen corresponding path program 1 times [2019-12-27 00:48:43,519 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-27 00:48:43,519 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [808949836] [2019-12-27 00:48:43,520 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-27 00:48:43,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-27 00:48:43,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-27 00:48:43,581 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-27 00:48:43,581 INFO L476 BasicCegarLoop]: Counterexample might be feasible [2019-12-27 00:48:43,582 WARN L364 ceAbstractionStarter]: 2 thread instances were not sufficient, I will increase this number and restart the analysis [2019-12-27 00:48:43,582 INFO L340 ceAbstractionStarter]: Constructing petrified ICFG for 3 thread instances. [2019-12-27 00:48:43,597 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:48:43,597 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:48:43,597 WARN L315 ript$VariableManager]: TermVariabe thr1Thread3of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:48:43,597 WARN L315 ript$VariableManager]: TermVariabe thr1Thread3of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:48:43,598 WARN L315 ript$VariableManager]: TermVariabe thr1Thread3of3ForFork0_~v~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:48:43,598 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:48:43,598 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:48:43,598 WARN L315 ript$VariableManager]: TermVariabe thr1Thread3of3ForFork0_~v~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:48:43,598 WARN L315 ript$VariableManager]: TermVariabe thr1Thread3of3ForFork0_~v~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:48:43,599 WARN L315 ript$VariableManager]: TermVariabe thr1Thread3of3ForFork0_~v~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:48:43,599 WARN L315 ript$VariableManager]: TermVariabe thr1Thread3of3ForFork0_~v~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:48:43,599 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:48:43,599 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:48:43,600 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:48:43,600 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:48:43,600 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:48:43,600 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:48:43,600 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of3ForFork0_~v~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:48:43,600 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:48:43,601 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:48:43,601 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of3ForFork0_~v~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:48:43,601 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of3ForFork0_~v~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:48:43,601 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of3ForFork0_~v~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:48:43,601 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of3ForFork0_~v~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:48:43,602 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:48:43,604 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:48:43,604 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:48:43,604 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:48:43,605 WARN L315 ript$VariableManager]: TermVariabe thr1Thread2of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:48:43,605 WARN L315 ript$VariableManager]: TermVariabe thr1Thread2of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:48:43,605 WARN L315 ript$VariableManager]: TermVariabe thr1Thread2of3ForFork0_~v~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:48:43,605 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:48:43,605 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:48:43,606 WARN L315 ript$VariableManager]: TermVariabe thr1Thread2of3ForFork0_~v~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:48:43,606 WARN L315 ript$VariableManager]: TermVariabe thr1Thread2of3ForFork0_~v~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:48:43,606 WARN L315 ript$VariableManager]: TermVariabe thr1Thread2of3ForFork0_~v~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:48:43,606 WARN L315 ript$VariableManager]: TermVariabe thr1Thread2of3ForFork0_~v~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:48:43,606 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:48:43,607 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:48:43,608 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of3ForFork0_~v~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:48:43,609 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:48:43,609 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:48:43,609 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:48:43,609 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:48:43,611 WARN L315 ript$VariableManager]: TermVariabe thr1Thread2of3ForFork0_~v~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:48:43,611 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:48:43,611 WARN L315 ript$VariableManager]: TermVariabe thr1Thread2of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:48:43,611 WARN L315 ript$VariableManager]: TermVariabe thr1Thread2of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:48:43,611 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:48:43,614 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:48:43,614 WARN L315 ript$VariableManager]: TermVariabe thr1Thread3of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:48:43,614 WARN L315 ript$VariableManager]: TermVariabe thr1Thread3of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:48:43,614 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:48:43,615 WARN L315 ript$VariableManager]: TermVariabe thr1Thread3of3ForFork0_~v~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:48:43,617 INFO L249 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2019-12-27 00:48:43,617 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-12-27 00:48:43,617 INFO L374 AbstractCegarLoop]: Hoare is true [2019-12-27 00:48:43,618 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-12-27 00:48:43,618 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-12-27 00:48:43,618 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-12-27 00:48:43,618 INFO L378 AbstractCegarLoop]: Difference is false [2019-12-27 00:48:43,618 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-12-27 00:48:43,618 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-12-27 00:48:43,620 INFO L152 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 60 places, 60 transitions [2019-12-27 00:48:43,620 INFO L68 FinitePrefix]: Start finitePrefix. Operand has 60 places, 60 transitions [2019-12-27 00:48:43,637 INFO L132 PetriNetUnfolder]: 10/86 cut-off events. [2019-12-27 00:48:43,637 INFO L133 PetriNetUnfolder]: For 7/7 co-relation queries the response was YES. [2019-12-27 00:48:43,639 INFO L76 FinitePrefix]: Finished finitePrefix Result has 102 conditions, 86 events. 10/86 cut-off events. For 7/7 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 210 event pairs. 0/69 useless extension candidates. Maximal degree in co-relation 67. Up to 8 conditions per place. [2019-12-27 00:48:43,644 INFO L68 FinitePrefix]: Start finitePrefix. Operand has 60 places, 60 transitions [2019-12-27 00:48:43,658 INFO L132 PetriNetUnfolder]: 10/86 cut-off events. [2019-12-27 00:48:43,658 INFO L133 PetriNetUnfolder]: For 7/7 co-relation queries the response was YES. [2019-12-27 00:48:43,661 INFO L76 FinitePrefix]: Finished finitePrefix Result has 102 conditions, 86 events. 10/86 cut-off events. For 7/7 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 210 event pairs. 0/69 useless extension candidates. Maximal degree in co-relation 67. Up to 8 conditions per place. [2019-12-27 00:48:43,665 INFO L158 etLargeBlockEncoding]: Number of co-enabled transitions 1872 [2019-12-27 00:48:43,665 INFO L170 etLargeBlockEncoding]: Semantic Check. [2019-12-27 00:48:44,467 INFO L206 etLargeBlockEncoding]: Checked pairs total: 5122 [2019-12-27 00:48:44,467 INFO L214 etLargeBlockEncoding]: Total number of compositions: 34 [2019-12-27 00:48:44,468 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 30 places, 30 transitions [2019-12-27 00:48:44,563 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 2188 states. [2019-12-27 00:48:44,564 INFO L276 IsEmpty]: Start isEmpty. Operand 2188 states. [2019-12-27 00:48:44,565 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2019-12-27 00:48:44,565 INFO L403 BasicCegarLoop]: Found error trace [2019-12-27 00:48:44,565 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2019-12-27 00:48:44,565 INFO L410 AbstractCegarLoop]: === Iteration 1 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-27 00:48:44,565 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-27 00:48:44,566 INFO L82 PathProgramCache]: Analyzing trace with hash -1203016923, now seen corresponding path program 1 times [2019-12-27 00:48:44,566 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-27 00:48:44,566 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [942343129] [2019-12-27 00:48:44,566 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-27 00:48:44,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-27 00:48:44,661 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-27 00:48:44,662 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [942343129] [2019-12-27 00:48:44,662 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-27 00:48:44,662 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-12-27 00:48:44,663 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [862368846] [2019-12-27 00:48:44,664 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-12-27 00:48:44,664 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-27 00:48:44,664 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-12-27 00:48:44,665 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2019-12-27 00:48:44,665 INFO L87 Difference]: Start difference. First operand 2188 states. Second operand 5 states. [2019-12-27 00:48:44,829 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-27 00:48:44,829 INFO L93 Difference]: Finished difference Result 2674 states and 9044 transitions. [2019-12-27 00:48:44,829 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-12-27 00:48:44,830 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 8 [2019-12-27 00:48:44,830 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-27 00:48:44,857 INFO L225 Difference]: With dead ends: 2674 [2019-12-27 00:48:44,858 INFO L226 Difference]: Without dead ends: 2674 [2019-12-27 00:48:44,858 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2019-12-27 00:48:44,877 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2674 states. [2019-12-27 00:48:44,977 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2674 to 1998. [2019-12-27 00:48:44,978 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1998 states. [2019-12-27 00:48:44,990 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1998 states to 1998 states and 7014 transitions. [2019-12-27 00:48:44,990 INFO L78 Accepts]: Start accepts. Automaton has 1998 states and 7014 transitions. Word has length 8 [2019-12-27 00:48:44,991 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-27 00:48:44,991 INFO L462 AbstractCegarLoop]: Abstraction has 1998 states and 7014 transitions. [2019-12-27 00:48:44,991 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-12-27 00:48:44,991 INFO L276 IsEmpty]: Start isEmpty. Operand 1998 states and 7014 transitions. [2019-12-27 00:48:44,992 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2019-12-27 00:48:44,992 INFO L403 BasicCegarLoop]: Found error trace [2019-12-27 00:48:44,993 INFO L411 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-27 00:48:44,993 INFO L410 AbstractCegarLoop]: === Iteration 2 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-27 00:48:44,993 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-27 00:48:44,993 INFO L82 PathProgramCache]: Analyzing trace with hash -1304332861, now seen corresponding path program 1 times [2019-12-27 00:48:44,994 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-27 00:48:44,994 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [206843308] [2019-12-27 00:48:44,994 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-27 00:48:45,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-27 00:48:45,104 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2019-12-27 00:48:45,105 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [206843308] [2019-12-27 00:48:45,105 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-27 00:48:45,105 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-12-27 00:48:45,105 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [898156034] [2019-12-27 00:48:45,106 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-12-27 00:48:45,106 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-27 00:48:45,106 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-12-27 00:48:45,106 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2019-12-27 00:48:45,108 INFO L87 Difference]: Start difference. First operand 1998 states and 7014 transitions. Second operand 5 states. [2019-12-27 00:48:45,277 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-27 00:48:45,277 INFO L93 Difference]: Finished difference Result 3058 states and 10283 transitions. [2019-12-27 00:48:45,278 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-12-27 00:48:45,278 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 11 [2019-12-27 00:48:45,278 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-27 00:48:45,303 INFO L225 Difference]: With dead ends: 3058 [2019-12-27 00:48:45,304 INFO L226 Difference]: Without dead ends: 3058 [2019-12-27 00:48:45,305 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2019-12-27 00:48:45,321 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3058 states. [2019-12-27 00:48:45,392 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3058 to 2270. [2019-12-27 00:48:45,393 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2270 states. [2019-12-27 00:48:45,408 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2270 states to 2270 states and 7909 transitions. [2019-12-27 00:48:45,409 INFO L78 Accepts]: Start accepts. Automaton has 2270 states and 7909 transitions. Word has length 11 [2019-12-27 00:48:45,409 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-27 00:48:45,409 INFO L462 AbstractCegarLoop]: Abstraction has 2270 states and 7909 transitions. [2019-12-27 00:48:45,409 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-12-27 00:48:45,410 INFO L276 IsEmpty]: Start isEmpty. Operand 2270 states and 7909 transitions. [2019-12-27 00:48:45,411 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2019-12-27 00:48:45,411 INFO L403 BasicCegarLoop]: Found error trace [2019-12-27 00:48:45,411 INFO L411 BasicCegarLoop]: trace histogram [4, 3, 1, 1, 1, 1, 1] [2019-12-27 00:48:45,412 INFO L410 AbstractCegarLoop]: === Iteration 3 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-27 00:48:45,412 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-27 00:48:45,412 INFO L82 PathProgramCache]: Analyzing trace with hash 828376654, now seen corresponding path program 1 times [2019-12-27 00:48:45,412 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-27 00:48:45,412 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1137640018] [2019-12-27 00:48:45,413 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-27 00:48:45,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-27 00:48:45,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-27 00:48:45,443 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-27 00:48:45,443 INFO L476 BasicCegarLoop]: Counterexample might be feasible [2019-12-27 00:48:45,446 WARN L364 ceAbstractionStarter]: 3 thread instances were not sufficient, I will increase this number and restart the analysis [2019-12-27 00:48:45,446 INFO L340 ceAbstractionStarter]: Constructing petrified ICFG for 4 thread instances. [2019-12-27 00:48:45,457 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:48:45,457 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:48:45,457 WARN L315 ript$VariableManager]: TermVariabe thr1Thread3of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:48:45,457 WARN L315 ript$VariableManager]: TermVariabe thr1Thread3of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:48:45,458 WARN L315 ript$VariableManager]: TermVariabe thr1Thread3of4ForFork0_~v~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:48:45,458 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:48:45,458 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:48:45,458 WARN L315 ript$VariableManager]: TermVariabe thr1Thread3of4ForFork0_~v~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:48:45,458 WARN L315 ript$VariableManager]: TermVariabe thr1Thread3of4ForFork0_~v~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:48:45,458 WARN L315 ript$VariableManager]: TermVariabe thr1Thread3of4ForFork0_~v~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:48:45,459 WARN L315 ript$VariableManager]: TermVariabe thr1Thread3of4ForFork0_~v~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:48:45,459 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:48:45,459 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:48:45,459 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:48:45,459 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:48:45,459 WARN L315 ript$VariableManager]: TermVariabe thr1Thread4of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:48:45,460 WARN L315 ript$VariableManager]: TermVariabe thr1Thread4of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:48:45,461 WARN L315 ript$VariableManager]: TermVariabe thr1Thread4of4ForFork0_~v~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:48:45,461 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:48:45,461 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:48:45,461 WARN L315 ript$VariableManager]: TermVariabe thr1Thread4of4ForFork0_~v~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:48:45,461 WARN L315 ript$VariableManager]: TermVariabe thr1Thread4of4ForFork0_~v~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:48:45,462 WARN L315 ript$VariableManager]: TermVariabe thr1Thread4of4ForFork0_~v~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:48:45,462 WARN L315 ript$VariableManager]: TermVariabe thr1Thread4of4ForFork0_~v~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:48:45,462 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:48:45,462 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:48:45,462 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:48:45,463 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:48:45,463 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:48:45,463 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:48:45,463 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of4ForFork0_~v~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:48:45,463 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:48:45,463 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:48:45,463 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of4ForFork0_~v~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:48:45,464 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of4ForFork0_~v~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:48:45,464 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of4ForFork0_~v~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:48:45,464 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of4ForFork0_~v~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:48:45,464 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:48:45,464 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:48:45,465 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:48:45,465 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:48:45,465 WARN L315 ript$VariableManager]: TermVariabe thr1Thread2of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:48:45,465 WARN L315 ript$VariableManager]: TermVariabe thr1Thread2of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:48:45,465 WARN L315 ript$VariableManager]: TermVariabe thr1Thread2of4ForFork0_~v~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:48:45,465 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:48:45,465 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:48:45,466 WARN L315 ript$VariableManager]: TermVariabe thr1Thread2of4ForFork0_~v~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:48:45,466 WARN L315 ript$VariableManager]: TermVariabe thr1Thread2of4ForFork0_~v~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:48:45,466 WARN L315 ript$VariableManager]: TermVariabe thr1Thread2of4ForFork0_~v~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:48:45,466 WARN L315 ript$VariableManager]: TermVariabe thr1Thread2of4ForFork0_~v~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:48:45,466 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:48:45,466 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:48:45,467 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:48:45,467 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of4ForFork0_~v~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:48:45,467 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:48:45,467 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:48:45,467 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:48:45,470 WARN L315 ript$VariableManager]: TermVariabe thr1Thread2of4ForFork0_~v~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:48:45,470 WARN L315 ript$VariableManager]: TermVariabe thr1Thread2of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:48:45,471 WARN L315 ript$VariableManager]: TermVariabe thr1Thread2of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:48:45,471 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:48:45,471 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:48:45,473 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:48:45,473 WARN L315 ript$VariableManager]: TermVariabe thr1Thread3of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:48:45,473 WARN L315 ript$VariableManager]: TermVariabe thr1Thread3of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:48:45,474 WARN L315 ript$VariableManager]: TermVariabe thr1Thread3of4ForFork0_~v~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:48:45,474 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:48:45,476 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:48:45,476 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:48:45,476 WARN L315 ript$VariableManager]: TermVariabe thr1Thread4of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:48:45,477 WARN L315 ript$VariableManager]: TermVariabe thr1Thread4of4ForFork0_~v~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:48:45,477 WARN L315 ript$VariableManager]: TermVariabe thr1Thread4of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:48:45,478 INFO L249 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2019-12-27 00:48:45,478 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-12-27 00:48:45,479 INFO L374 AbstractCegarLoop]: Hoare is true [2019-12-27 00:48:45,479 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-12-27 00:48:45,479 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-12-27 00:48:45,479 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-12-27 00:48:45,479 INFO L378 AbstractCegarLoop]: Difference is false [2019-12-27 00:48:45,479 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-12-27 00:48:45,479 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-12-27 00:48:45,481 INFO L152 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 74 places, 74 transitions [2019-12-27 00:48:45,481 INFO L68 FinitePrefix]: Start finitePrefix. Operand has 74 places, 74 transitions [2019-12-27 00:48:45,504 INFO L132 PetriNetUnfolder]: 13/109 cut-off events. [2019-12-27 00:48:45,504 INFO L133 PetriNetUnfolder]: For 16/16 co-relation queries the response was YES. [2019-12-27 00:48:45,507 INFO L76 FinitePrefix]: Finished finitePrefix Result has 132 conditions, 109 events. 13/109 cut-off events. For 16/16 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 283 event pairs. 0/87 useless extension candidates. Maximal degree in co-relation 95. Up to 10 conditions per place. [2019-12-27 00:48:45,513 INFO L68 FinitePrefix]: Start finitePrefix. Operand has 74 places, 74 transitions [2019-12-27 00:48:45,531 INFO L132 PetriNetUnfolder]: 13/109 cut-off events. [2019-12-27 00:48:45,531 INFO L133 PetriNetUnfolder]: For 16/16 co-relation queries the response was YES. [2019-12-27 00:48:45,534 INFO L76 FinitePrefix]: Finished finitePrefix Result has 132 conditions, 109 events. 13/109 cut-off events. For 16/16 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 283 event pairs. 0/87 useless extension candidates. Maximal degree in co-relation 95. Up to 10 conditions per place. [2019-12-27 00:48:45,540 INFO L158 etLargeBlockEncoding]: Number of co-enabled transitions 3224 [2019-12-27 00:48:45,541 INFO L170 etLargeBlockEncoding]: Semantic Check. [2019-12-27 00:48:46,583 INFO L206 etLargeBlockEncoding]: Checked pairs total: 9341 [2019-12-27 00:48:46,584 INFO L214 etLargeBlockEncoding]: Total number of compositions: 42 [2019-12-27 00:48:46,584 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 37 places, 37 transitions [2019-12-27 00:48:47,478 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 13605 states. [2019-12-27 00:48:47,478 INFO L276 IsEmpty]: Start isEmpty. Operand 13605 states. [2019-12-27 00:48:47,478 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2019-12-27 00:48:47,479 INFO L403 BasicCegarLoop]: Found error trace [2019-12-27 00:48:47,479 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2019-12-27 00:48:47,479 INFO L410 AbstractCegarLoop]: === Iteration 1 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION]=== [2019-12-27 00:48:47,479 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-27 00:48:47,480 INFO L82 PathProgramCache]: Analyzing trace with hash 2031187017, now seen corresponding path program 1 times [2019-12-27 00:48:47,480 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-27 00:48:47,480 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [925873279] [2019-12-27 00:48:47,480 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-27 00:48:47,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-27 00:48:47,601 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-27 00:48:47,601 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [925873279] [2019-12-27 00:48:47,601 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-27 00:48:47,602 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-12-27 00:48:47,602 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [907569286] [2019-12-27 00:48:47,602 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-12-27 00:48:47,603 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-27 00:48:47,603 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-12-27 00:48:47,603 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2019-12-27 00:48:47,603 INFO L87 Difference]: Start difference. First operand 13605 states. Second operand 5 states. [2019-12-27 00:48:48,077 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-27 00:48:48,077 INFO L93 Difference]: Finished difference Result 17829 states and 77939 transitions. [2019-12-27 00:48:48,078 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-12-27 00:48:48,078 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 8 [2019-12-27 00:48:48,078 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-27 00:48:48,226 INFO L225 Difference]: With dead ends: 17829 [2019-12-27 00:48:48,227 INFO L226 Difference]: Without dead ends: 17829 [2019-12-27 00:48:48,227 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2019-12-27 00:48:48,415 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17829 states. [2019-12-27 00:48:48,964 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17829 to 12933. [2019-12-27 00:48:48,964 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12933 states. [2019-12-27 00:48:49,048 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12933 states to 12933 states and 58367 transitions. [2019-12-27 00:48:49,048 INFO L78 Accepts]: Start accepts. Automaton has 12933 states and 58367 transitions. Word has length 8 [2019-12-27 00:48:49,049 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-27 00:48:49,049 INFO L462 AbstractCegarLoop]: Abstraction has 12933 states and 58367 transitions. [2019-12-27 00:48:49,049 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-12-27 00:48:49,049 INFO L276 IsEmpty]: Start isEmpty. Operand 12933 states and 58367 transitions. [2019-12-27 00:48:49,054 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2019-12-27 00:48:49,054 INFO L403 BasicCegarLoop]: Found error trace [2019-12-27 00:48:49,054 INFO L411 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-27 00:48:49,055 INFO L410 AbstractCegarLoop]: === Iteration 2 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION]=== [2019-12-27 00:48:49,055 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-27 00:48:49,055 INFO L82 PathProgramCache]: Analyzing trace with hash 571636238, now seen corresponding path program 1 times [2019-12-27 00:48:49,055 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-27 00:48:49,056 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2130157299] [2019-12-27 00:48:49,056 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-27 00:48:49,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-27 00:48:49,165 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2019-12-27 00:48:49,165 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2130157299] [2019-12-27 00:48:49,166 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-27 00:48:49,166 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-12-27 00:48:49,166 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [929420104] [2019-12-27 00:48:49,166 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-12-27 00:48:49,167 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-27 00:48:49,167 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-12-27 00:48:49,167 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2019-12-27 00:48:49,167 INFO L87 Difference]: Start difference. First operand 12933 states and 58367 transitions. Second operand 5 states. [2019-12-27 00:48:49,437 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-27 00:48:49,437 INFO L93 Difference]: Finished difference Result 21213 states and 92351 transitions. [2019-12-27 00:48:49,438 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-12-27 00:48:49,438 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 11 [2019-12-27 00:48:49,438 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-27 00:48:50,642 INFO L225 Difference]: With dead ends: 21213 [2019-12-27 00:48:50,642 INFO L226 Difference]: Without dead ends: 21213 [2019-12-27 00:48:50,643 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2019-12-27 00:48:50,792 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21213 states. [2019-12-27 00:48:51,351 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21213 to 15330. [2019-12-27 00:48:51,351 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15330 states. [2019-12-27 00:48:51,421 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15330 states to 15330 states and 68806 transitions. [2019-12-27 00:48:51,421 INFO L78 Accepts]: Start accepts. Automaton has 15330 states and 68806 transitions. Word has length 11 [2019-12-27 00:48:51,421 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-27 00:48:51,421 INFO L462 AbstractCegarLoop]: Abstraction has 15330 states and 68806 transitions. [2019-12-27 00:48:51,421 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-12-27 00:48:51,422 INFO L276 IsEmpty]: Start isEmpty. Operand 15330 states and 68806 transitions. [2019-12-27 00:48:51,423 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2019-12-27 00:48:51,423 INFO L403 BasicCegarLoop]: Found error trace [2019-12-27 00:48:51,423 INFO L411 BasicCegarLoop]: trace histogram [3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-27 00:48:51,423 INFO L410 AbstractCegarLoop]: === Iteration 3 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION]=== [2019-12-27 00:48:51,424 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-27 00:48:51,424 INFO L82 PathProgramCache]: Analyzing trace with hash -83314279, now seen corresponding path program 1 times [2019-12-27 00:48:51,424 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-27 00:48:51,424 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1597669469] [2019-12-27 00:48:51,425 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-27 00:48:51,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-27 00:48:51,501 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2019-12-27 00:48:51,501 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1597669469] [2019-12-27 00:48:51,502 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-27 00:48:51,502 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-12-27 00:48:51,502 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [239951674] [2019-12-27 00:48:51,502 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-12-27 00:48:51,503 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-27 00:48:51,503 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-12-27 00:48:51,503 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2019-12-27 00:48:51,503 INFO L87 Difference]: Start difference. First operand 15330 states and 68806 transitions. Second operand 5 states. [2019-12-27 00:48:51,794 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-27 00:48:51,794 INFO L93 Difference]: Finished difference Result 24943 states and 108222 transitions. [2019-12-27 00:48:51,795 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-12-27 00:48:51,795 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 14 [2019-12-27 00:48:51,795 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-27 00:48:51,871 INFO L225 Difference]: With dead ends: 24943 [2019-12-27 00:48:51,872 INFO L226 Difference]: Without dead ends: 24943 [2019-12-27 00:48:51,872 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2019-12-27 00:48:52,043 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24943 states. [2019-12-27 00:48:52,816 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24943 to 17989. [2019-12-27 00:48:52,816 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17989 states. [2019-12-27 00:48:52,900 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17989 states to 17989 states and 80300 transitions. [2019-12-27 00:48:52,900 INFO L78 Accepts]: Start accepts. Automaton has 17989 states and 80300 transitions. Word has length 14 [2019-12-27 00:48:52,902 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-27 00:48:52,902 INFO L462 AbstractCegarLoop]: Abstraction has 17989 states and 80300 transitions. [2019-12-27 00:48:52,902 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-12-27 00:48:52,902 INFO L276 IsEmpty]: Start isEmpty. Operand 17989 states and 80300 transitions. [2019-12-27 00:48:52,903 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2019-12-27 00:48:52,903 INFO L403 BasicCegarLoop]: Found error trace [2019-12-27 00:48:52,904 INFO L411 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-27 00:48:52,904 INFO L410 AbstractCegarLoop]: === Iteration 4 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION]=== [2019-12-27 00:48:52,904 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-27 00:48:52,904 INFO L82 PathProgramCache]: Analyzing trace with hash 1250988120, now seen corresponding path program 1 times [2019-12-27 00:48:52,904 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-27 00:48:52,905 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [479410923] [2019-12-27 00:48:52,905 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-27 00:48:52,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-27 00:48:52,997 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2019-12-27 00:48:52,998 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [479410923] [2019-12-27 00:48:52,998 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [134109069] [2019-12-27 00:48:52,998 INFO L94 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 [2019-12-27 00:48:53,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-27 00:48:53,070 INFO L264 TraceCheckSpWp]: Trace formula consists of 70 conjuncts, 14 conjunts are in the unsatisfiable core [2019-12-27 00:48:53,072 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-27 00:48:53,129 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-27 00:48:53,129 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-12-27 00:48:53,130 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 6] total 7 [2019-12-27 00:48:53,130 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1363247648] [2019-12-27 00:48:53,130 INFO L442 AbstractCegarLoop]: Interpolant automaton has 9 states [2019-12-27 00:48:53,131 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-27 00:48:53,131 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2019-12-27 00:48:53,131 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2019-12-27 00:48:53,131 INFO L87 Difference]: Start difference. First operand 17989 states and 80300 transitions. Second operand 9 states. [2019-12-27 00:48:54,597 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-27 00:48:54,597 INFO L93 Difference]: Finished difference Result 28215 states and 118118 transitions. [2019-12-27 00:48:54,598 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2019-12-27 00:48:54,598 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 15 [2019-12-27 00:48:54,598 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-27 00:48:54,682 INFO L225 Difference]: With dead ends: 28215 [2019-12-27 00:48:54,683 INFO L226 Difference]: Without dead ends: 28215 [2019-12-27 00:48:54,683 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 11 SyntacticMatches, 1 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=36, Invalid=96, Unknown=0, NotChecked=0, Total=132 [2019-12-27 00:48:54,814 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28215 states. [2019-12-27 00:48:55,286 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28215 to 19957. [2019-12-27 00:48:55,286 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19957 states. [2019-12-27 00:48:55,580 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19957 states to 19957 states and 86505 transitions. [2019-12-27 00:48:55,581 INFO L78 Accepts]: Start accepts. Automaton has 19957 states and 86505 transitions. Word has length 15 [2019-12-27 00:48:55,581 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-27 00:48:55,581 INFO L462 AbstractCegarLoop]: Abstraction has 19957 states and 86505 transitions. [2019-12-27 00:48:55,581 INFO L463 AbstractCegarLoop]: Interpolant automaton has 9 states. [2019-12-27 00:48:55,581 INFO L276 IsEmpty]: Start isEmpty. Operand 19957 states and 86505 transitions. [2019-12-27 00:48:55,582 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2019-12-27 00:48:55,582 INFO L403 BasicCegarLoop]: Found error trace [2019-12-27 00:48:55,582 INFO L411 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-27 00:48:55,783 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-12-27 00:48:55,783 INFO L410 AbstractCegarLoop]: === Iteration 5 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION]=== [2019-12-27 00:48:55,784 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-27 00:48:55,784 INFO L82 PathProgramCache]: Analyzing trace with hash -1126296492, now seen corresponding path program 1 times [2019-12-27 00:48:55,784 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-27 00:48:55,785 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [961844069] [2019-12-27 00:48:55,785 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-27 00:48:55,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-27 00:48:55,833 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2019-12-27 00:48:55,834 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [961844069] [2019-12-27 00:48:55,834 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-27 00:48:55,834 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-12-27 00:48:55,834 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [52601031] [2019-12-27 00:48:55,834 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-12-27 00:48:55,835 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-27 00:48:55,835 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-12-27 00:48:55,835 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-27 00:48:55,835 INFO L87 Difference]: Start difference. First operand 19957 states and 86505 transitions. Second operand 3 states. [2019-12-27 00:48:56,015 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-27 00:48:56,015 INFO L93 Difference]: Finished difference Result 30190 states and 116201 transitions. [2019-12-27 00:48:56,016 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-27 00:48:56,016 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 15 [2019-12-27 00:48:56,016 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-27 00:48:56,102 INFO L225 Difference]: With dead ends: 30190 [2019-12-27 00:48:56,102 INFO L226 Difference]: Without dead ends: 30190 [2019-12-27 00:48:56,102 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-27 00:48:56,207 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30190 states. [2019-12-27 00:48:56,931 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30190 to 26337. [2019-12-27 00:48:56,931 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 26337 states. [2019-12-27 00:48:57,006 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26337 states to 26337 states and 105394 transitions. [2019-12-27 00:48:57,006 INFO L78 Accepts]: Start accepts. Automaton has 26337 states and 105394 transitions. Word has length 15 [2019-12-27 00:48:57,006 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-27 00:48:57,006 INFO L462 AbstractCegarLoop]: Abstraction has 26337 states and 105394 transitions. [2019-12-27 00:48:57,006 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-12-27 00:48:57,007 INFO L276 IsEmpty]: Start isEmpty. Operand 26337 states and 105394 transitions. [2019-12-27 00:48:57,008 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2019-12-27 00:48:57,008 INFO L403 BasicCegarLoop]: Found error trace [2019-12-27 00:48:57,008 INFO L411 BasicCegarLoop]: trace histogram [5, 4, 1, 1, 1, 1, 1, 1] [2019-12-27 00:48:57,009 INFO L410 AbstractCegarLoop]: === Iteration 6 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION]=== [2019-12-27 00:48:57,009 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-27 00:48:57,009 INFO L82 PathProgramCache]: Analyzing trace with hash -641242489, now seen corresponding path program 1 times [2019-12-27 00:48:57,009 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-27 00:48:57,009 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [278326343] [2019-12-27 00:48:57,010 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-27 00:48:57,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-27 00:48:57,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-27 00:48:57,027 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-27 00:48:57,027 INFO L476 BasicCegarLoop]: Counterexample might be feasible [2019-12-27 00:48:57,028 WARN L364 ceAbstractionStarter]: 4 thread instances were not sufficient, I will increase this number and restart the analysis [2019-12-27 00:48:57,028 INFO L340 ceAbstractionStarter]: Constructing petrified ICFG for 5 thread instances. [2019-12-27 00:48:57,035 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread2of5ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:48:57,035 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread2of5ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:48:57,035 WARN L315 ript$VariableManager]: TermVariabe thr1Thread2of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:48:57,035 WARN L315 ript$VariableManager]: TermVariabe thr1Thread2of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:48:57,035 WARN L315 ript$VariableManager]: TermVariabe thr1Thread2of5ForFork0_~v~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:48:57,035 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread2of5ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:48:57,036 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread2of5ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:48:57,036 WARN L315 ript$VariableManager]: TermVariabe thr1Thread2of5ForFork0_~v~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:48:57,036 WARN L315 ript$VariableManager]: TermVariabe thr1Thread2of5ForFork0_~v~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:48:57,036 WARN L315 ript$VariableManager]: TermVariabe thr1Thread2of5ForFork0_~v~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:48:57,036 WARN L315 ript$VariableManager]: TermVariabe thr1Thread2of5ForFork0_~v~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:48:57,037 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread2of5ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:48:57,037 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread2of5ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:48:57,037 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of5ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:48:57,037 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of5ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:48:57,037 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:48:57,037 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:48:57,038 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of5ForFork0_~v~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:48:57,038 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of5ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:48:57,038 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of5ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:48:57,038 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of5ForFork0_~v~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:48:57,038 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of5ForFork0_~v~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:48:57,038 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of5ForFork0_~v~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:48:57,039 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of5ForFork0_~v~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:48:57,039 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of5ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:48:57,039 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of5ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:48:57,039 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread3of5ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:48:57,039 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread3of5ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:48:57,039 WARN L315 ript$VariableManager]: TermVariabe thr1Thread3of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:48:57,039 WARN L315 ript$VariableManager]: TermVariabe thr1Thread3of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:48:57,040 WARN L315 ript$VariableManager]: TermVariabe thr1Thread3of5ForFork0_~v~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:48:57,040 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread3of5ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:48:57,040 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread3of5ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:48:57,040 WARN L315 ript$VariableManager]: TermVariabe thr1Thread3of5ForFork0_~v~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:48:57,040 WARN L315 ript$VariableManager]: TermVariabe thr1Thread3of5ForFork0_~v~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:48:57,040 WARN L315 ript$VariableManager]: TermVariabe thr1Thread3of5ForFork0_~v~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:48:57,041 WARN L315 ript$VariableManager]: TermVariabe thr1Thread3of5ForFork0_~v~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:48:57,041 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread3of5ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:48:57,041 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread3of5ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:48:57,041 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread4of5ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:48:57,041 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread4of5ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:48:57,041 WARN L315 ript$VariableManager]: TermVariabe thr1Thread4of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:48:57,042 WARN L315 ript$VariableManager]: TermVariabe thr1Thread4of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:48:57,042 WARN L315 ript$VariableManager]: TermVariabe thr1Thread4of5ForFork0_~v~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:48:57,042 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread4of5ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:48:57,042 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread4of5ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:48:57,042 WARN L315 ript$VariableManager]: TermVariabe thr1Thread4of5ForFork0_~v~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:48:57,042 WARN L315 ript$VariableManager]: TermVariabe thr1Thread4of5ForFork0_~v~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:48:57,043 WARN L315 ript$VariableManager]: TermVariabe thr1Thread4of5ForFork0_~v~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:48:57,043 WARN L315 ript$VariableManager]: TermVariabe thr1Thread4of5ForFork0_~v~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:48:57,043 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread4of5ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:48:57,043 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread4of5ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:48:57,043 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread5of5ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:48:57,043 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread5of5ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:48:57,044 WARN L315 ript$VariableManager]: TermVariabe thr1Thread5of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:48:57,044 WARN L315 ript$VariableManager]: TermVariabe thr1Thread5of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:48:57,044 WARN L315 ript$VariableManager]: TermVariabe thr1Thread5of5ForFork0_~v~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:48:57,044 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread5of5ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:48:57,044 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread5of5ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:48:57,044 WARN L315 ript$VariableManager]: TermVariabe thr1Thread5of5ForFork0_~v~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:48:57,045 WARN L315 ript$VariableManager]: TermVariabe thr1Thread5of5ForFork0_~v~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:48:57,045 WARN L315 ript$VariableManager]: TermVariabe thr1Thread5of5ForFork0_~v~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:48:57,045 WARN L315 ript$VariableManager]: TermVariabe thr1Thread5of5ForFork0_~v~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:48:57,045 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread5of5ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:48:57,045 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread5of5ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:48:57,046 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of5ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:48:57,046 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of5ForFork0_~v~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:48:57,046 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:48:57,046 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:48:57,046 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of5ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:48:57,056 WARN L315 ript$VariableManager]: TermVariabe thr1Thread2of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:48:57,056 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread2of5ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:48:57,057 WARN L315 ript$VariableManager]: TermVariabe thr1Thread2of5ForFork0_~v~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:48:57,057 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread2of5ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:48:57,057 WARN L315 ript$VariableManager]: TermVariabe thr1Thread2of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:48:57,058 WARN L315 ript$VariableManager]: TermVariabe thr1Thread3of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:48:57,058 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread3of5ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:48:57,059 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread3of5ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:48:57,059 WARN L315 ript$VariableManager]: TermVariabe thr1Thread3of5ForFork0_~v~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:48:57,059 WARN L315 ript$VariableManager]: TermVariabe thr1Thread3of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:48:57,060 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread4of5ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:48:57,060 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread4of5ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:48:57,061 WARN L315 ript$VariableManager]: TermVariabe thr1Thread4of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:48:57,061 WARN L315 ript$VariableManager]: TermVariabe thr1Thread4of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:48:57,061 WARN L315 ript$VariableManager]: TermVariabe thr1Thread4of5ForFork0_~v~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:48:57,062 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread5of5ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:48:57,062 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread5of5ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:48:57,063 WARN L315 ript$VariableManager]: TermVariabe thr1Thread5of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:48:57,063 WARN L315 ript$VariableManager]: TermVariabe thr1Thread5of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:48:57,063 WARN L315 ript$VariableManager]: TermVariabe thr1Thread5of5ForFork0_~v~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:48:57,064 INFO L249 AbstractCegarLoop]: Starting to check reachability of 7 error locations. [2019-12-27 00:48:57,064 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-12-27 00:48:57,064 INFO L374 AbstractCegarLoop]: Hoare is true [2019-12-27 00:48:57,064 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-12-27 00:48:57,065 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-12-27 00:48:57,065 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-12-27 00:48:57,065 INFO L378 AbstractCegarLoop]: Difference is false [2019-12-27 00:48:57,065 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-12-27 00:48:57,065 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-12-27 00:48:57,066 INFO L152 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 88 places, 88 transitions [2019-12-27 00:48:57,066 INFO L68 FinitePrefix]: Start finitePrefix. Operand has 88 places, 88 transitions [2019-12-27 00:48:57,085 INFO L132 PetriNetUnfolder]: 16/132 cut-off events. [2019-12-27 00:48:57,085 INFO L133 PetriNetUnfolder]: For 30/30 co-relation queries the response was YES. [2019-12-27 00:48:57,088 INFO L76 FinitePrefix]: Finished finitePrefix Result has 163 conditions, 132 events. 16/132 cut-off events. For 30/30 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 364 event pairs. 0/105 useless extension candidates. Maximal degree in co-relation 125. Up to 12 conditions per place. [2019-12-27 00:48:57,097 INFO L68 FinitePrefix]: Start finitePrefix. Operand has 88 places, 88 transitions [2019-12-27 00:48:57,114 INFO L132 PetriNetUnfolder]: 16/132 cut-off events. [2019-12-27 00:48:57,114 INFO L133 PetriNetUnfolder]: For 30/30 co-relation queries the response was YES. [2019-12-27 00:48:57,117 INFO L76 FinitePrefix]: Finished finitePrefix Result has 163 conditions, 132 events. 16/132 cut-off events. For 30/30 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 364 event pairs. 0/105 useless extension candidates. Maximal degree in co-relation 125. Up to 12 conditions per place. [2019-12-27 00:48:57,125 INFO L158 etLargeBlockEncoding]: Number of co-enabled transitions 4940 [2019-12-27 00:48:57,126 INFO L170 etLargeBlockEncoding]: Semantic Check. [2019-12-27 00:48:58,308 INFO L206 etLargeBlockEncoding]: Checked pairs total: 17447 [2019-12-27 00:48:58,308 INFO L214 etLargeBlockEncoding]: Total number of compositions: 51 [2019-12-27 00:48:58,309 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 47 places, 47 transitions [2019-12-27 00:49:33,604 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 122560 states. [2019-12-27 00:49:33,604 INFO L276 IsEmpty]: Start isEmpty. Operand 122560 states. [2019-12-27 00:49:33,605 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2019-12-27 00:49:33,605 INFO L403 BasicCegarLoop]: Found error trace [2019-12-27 00:49:33,605 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2019-12-27 00:49:33,605 INFO L410 AbstractCegarLoop]: === Iteration 1 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-27 00:49:33,606 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-27 00:49:33,606 INFO L82 PathProgramCache]: Analyzing trace with hash 1409780448, now seen corresponding path program 1 times [2019-12-27 00:49:33,606 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-27 00:49:33,606 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [300394478] [2019-12-27 00:49:33,606 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-27 00:49:33,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-27 00:49:33,667 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-27 00:49:33,668 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [300394478] [2019-12-27 00:49:33,668 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-27 00:49:33,669 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-12-27 00:49:33,669 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [861560444] [2019-12-27 00:49:33,669 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-12-27 00:49:33,669 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-27 00:49:33,670 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-12-27 00:49:33,670 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2019-12-27 00:49:33,670 INFO L87 Difference]: Start difference. First operand 122560 states. Second operand 5 states. [2019-12-27 00:49:38,976 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-27 00:49:38,976 INFO L93 Difference]: Finished difference Result 171945 states and 934587 transitions. [2019-12-27 00:49:38,976 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-12-27 00:49:38,976 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 8 [2019-12-27 00:49:38,977 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-27 00:49:39,682 INFO L225 Difference]: With dead ends: 171945 [2019-12-27 00:49:39,683 INFO L226 Difference]: Without dead ends: 171945 [2019-12-27 00:49:39,683 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2019-12-27 00:49:45,949 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 171945 states. [2019-12-27 00:49:48,691 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 171945 to 121401. [2019-12-27 00:49:48,692 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 121401 states. [2019-12-27 00:49:49,235 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 121401 states to 121401 states and 677935 transitions. [2019-12-27 00:49:49,235 INFO L78 Accepts]: Start accepts. Automaton has 121401 states and 677935 transitions. Word has length 8 [2019-12-27 00:49:49,236 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-27 00:49:49,236 INFO L462 AbstractCegarLoop]: Abstraction has 121401 states and 677935 transitions. [2019-12-27 00:49:49,236 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-12-27 00:49:49,236 INFO L276 IsEmpty]: Start isEmpty. Operand 121401 states and 677935 transitions. [2019-12-27 00:49:49,236 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2019-12-27 00:49:49,237 INFO L403 BasicCegarLoop]: Found error trace [2019-12-27 00:49:49,237 INFO L411 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-27 00:49:49,237 INFO L410 AbstractCegarLoop]: === Iteration 2 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-27 00:49:49,237 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-27 00:49:49,237 INFO L82 PathProgramCache]: Analyzing trace with hash 1339475468, now seen corresponding path program 1 times [2019-12-27 00:49:49,237 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-27 00:49:49,238 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [699242822] [2019-12-27 00:49:49,238 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-27 00:49:49,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-27 00:49:49,301 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2019-12-27 00:49:49,302 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [699242822] [2019-12-27 00:49:49,302 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-27 00:49:49,302 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-12-27 00:49:49,302 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1416784922] [2019-12-27 00:49:49,302 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-12-27 00:49:49,303 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-27 00:49:49,303 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-12-27 00:49:49,303 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2019-12-27 00:49:49,303 INFO L87 Difference]: Start difference. First operand 121401 states and 677935 transitions. Second operand 5 states. [2019-12-27 00:49:56,802 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-27 00:49:56,803 INFO L93 Difference]: Finished difference Result 225123 states and 1226858 transitions. [2019-12-27 00:49:56,803 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-12-27 00:49:56,803 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 11 [2019-12-27 00:49:56,803 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-27 00:49:57,641 INFO L225 Difference]: With dead ends: 225123 [2019-12-27 00:49:57,641 INFO L226 Difference]: Without dead ends: 225123 [2019-12-27 00:49:57,642 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2019-12-27 00:50:06,963 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 225123 states. [2019-12-27 00:50:10,848 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 225123 to 145541. [2019-12-27 00:50:10,848 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 145541 states. [2019-12-27 00:50:11,493 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 145541 states to 145541 states and 810530 transitions. [2019-12-27 00:50:11,493 INFO L78 Accepts]: Start accepts. Automaton has 145541 states and 810530 transitions. Word has length 11 [2019-12-27 00:50:11,493 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-27 00:50:11,493 INFO L462 AbstractCegarLoop]: Abstraction has 145541 states and 810530 transitions. [2019-12-27 00:50:11,493 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-12-27 00:50:11,493 INFO L276 IsEmpty]: Start isEmpty. Operand 145541 states and 810530 transitions. [2019-12-27 00:50:11,494 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2019-12-27 00:50:11,494 INFO L403 BasicCegarLoop]: Found error trace [2019-12-27 00:50:11,494 INFO L411 BasicCegarLoop]: trace histogram [3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-27 00:50:11,494 INFO L410 AbstractCegarLoop]: === Iteration 3 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-27 00:50:11,494 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-27 00:50:11,495 INFO L82 PathProgramCache]: Analyzing trace with hash -1216352125, now seen corresponding path program 1 times [2019-12-27 00:50:11,495 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-27 00:50:11,495 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1192847664] [2019-12-27 00:50:11,495 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-27 00:50:11,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-27 00:50:11,585 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2019-12-27 00:50:11,585 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1192847664] [2019-12-27 00:50:11,585 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-27 00:50:11,585 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-12-27 00:50:11,586 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [759665865] [2019-12-27 00:50:11,586 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-12-27 00:50:11,586 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-27 00:50:11,586 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-12-27 00:50:11,587 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2019-12-27 00:50:11,587 INFO L87 Difference]: Start difference. First operand 145541 states and 810530 transitions. Second operand 5 states. [2019-12-27 00:50:18,900 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-27 00:50:18,901 INFO L93 Difference]: Finished difference Result 251766 states and 1364647 transitions. [2019-12-27 00:50:18,901 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-12-27 00:50:18,901 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 14 [2019-12-27 00:50:18,901 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-27 00:50:21,355 INFO L225 Difference]: With dead ends: 251766 [2019-12-27 00:50:21,355 INFO L226 Difference]: Without dead ends: 251766 [2019-12-27 00:50:21,355 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2019-12-27 00:50:31,478 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 251766 states. [2019-12-27 00:50:35,665 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 251766 to 177964. [2019-12-27 00:50:35,665 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 177964 states. [2019-12-27 00:50:37,589 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 177964 states to 177964 states and 988924 transitions. [2019-12-27 00:50:37,589 INFO L78 Accepts]: Start accepts. Automaton has 177964 states and 988924 transitions. Word has length 14 [2019-12-27 00:50:37,589 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-27 00:50:37,589 INFO L462 AbstractCegarLoop]: Abstraction has 177964 states and 988924 transitions. [2019-12-27 00:50:37,590 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-12-27 00:50:37,590 INFO L276 IsEmpty]: Start isEmpty. Operand 177964 states and 988924 transitions. [2019-12-27 00:50:37,591 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2019-12-27 00:50:37,591 INFO L403 BasicCegarLoop]: Found error trace [2019-12-27 00:50:37,591 INFO L411 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-27 00:50:37,591 INFO L410 AbstractCegarLoop]: === Iteration 4 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-27 00:50:37,592 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-27 00:50:37,592 INFO L82 PathProgramCache]: Analyzing trace with hash -2098773287, now seen corresponding path program 1 times [2019-12-27 00:50:37,592 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-27 00:50:37,592 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [856349117] [2019-12-27 00:50:37,592 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-27 00:50:37,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-27 00:50:37,630 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-27 00:50:37,631 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [856349117] [2019-12-27 00:50:37,631 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-27 00:50:37,631 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-12-27 00:50:37,631 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1214991497] [2019-12-27 00:50:37,631 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-12-27 00:50:37,632 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-27 00:50:37,632 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-12-27 00:50:37,632 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-27 00:50:37,632 INFO L87 Difference]: Start difference. First operand 177964 states and 988924 transitions. Second operand 3 states. [2019-12-27 00:50:37,857 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-27 00:50:37,857 INFO L93 Difference]: Finished difference Result 35467 states and 149439 transitions. [2019-12-27 00:50:37,858 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-27 00:50:37,858 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 15 [2019-12-27 00:50:37,858 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-27 00:50:37,980 INFO L225 Difference]: With dead ends: 35467 [2019-12-27 00:50:37,981 INFO L226 Difference]: Without dead ends: 35467 [2019-12-27 00:50:37,981 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-27 00:50:40,145 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35467 states. [2019-12-27 00:50:40,573 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35467 to 35467. [2019-12-27 00:50:40,574 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 35467 states. [2019-12-27 00:50:40,683 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35467 states to 35467 states and 149439 transitions. [2019-12-27 00:50:40,683 INFO L78 Accepts]: Start accepts. Automaton has 35467 states and 149439 transitions. Word has length 15 [2019-12-27 00:50:40,683 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-27 00:50:40,684 INFO L462 AbstractCegarLoop]: Abstraction has 35467 states and 149439 transitions. [2019-12-27 00:50:40,684 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-12-27 00:50:40,684 INFO L276 IsEmpty]: Start isEmpty. Operand 35467 states and 149439 transitions. [2019-12-27 00:50:40,685 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2019-12-27 00:50:40,685 INFO L403 BasicCegarLoop]: Found error trace [2019-12-27 00:50:40,685 INFO L411 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-27 00:50:40,685 INFO L410 AbstractCegarLoop]: === Iteration 5 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-27 00:50:40,685 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-27 00:50:40,685 INFO L82 PathProgramCache]: Analyzing trace with hash -1856571253, now seen corresponding path program 2 times [2019-12-27 00:50:40,685 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-27 00:50:40,686 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2043268696] [2019-12-27 00:50:40,686 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-27 00:50:40,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-27 00:50:40,815 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2019-12-27 00:50:40,816 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2043268696] [2019-12-27 00:50:40,816 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-27 00:50:40,816 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-12-27 00:50:40,816 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1019704035] [2019-12-27 00:50:40,817 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-12-27 00:50:40,817 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-27 00:50:40,817 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-12-27 00:50:40,817 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2019-12-27 00:50:40,817 INFO L87 Difference]: Start difference. First operand 35467 states and 149439 transitions. Second operand 7 states. [2019-12-27 00:50:45,097 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-27 00:50:45,097 INFO L93 Difference]: Finished difference Result 90439 states and 391911 transitions. [2019-12-27 00:50:45,098 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2019-12-27 00:50:45,098 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 15 [2019-12-27 00:50:45,098 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-27 00:50:45,372 INFO L225 Difference]: With dead ends: 90439 [2019-12-27 00:50:45,372 INFO L226 Difference]: Without dead ends: 90439 [2019-12-27 00:50:45,372 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=56, Invalid=154, Unknown=0, NotChecked=0, Total=210 [2019-12-27 00:50:46,227 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 90439 states. [2019-12-27 00:50:46,962 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 90439 to 35375. [2019-12-27 00:50:46,962 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 35375 states. [2019-12-27 00:50:47,070 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35375 states to 35375 states and 149293 transitions. [2019-12-27 00:50:47,070 INFO L78 Accepts]: Start accepts. Automaton has 35375 states and 149293 transitions. Word has length 15 [2019-12-27 00:50:47,070 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-27 00:50:47,070 INFO L462 AbstractCegarLoop]: Abstraction has 35375 states and 149293 transitions. [2019-12-27 00:50:47,070 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-12-27 00:50:47,071 INFO L276 IsEmpty]: Start isEmpty. Operand 35375 states and 149293 transitions. [2019-12-27 00:50:47,071 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2019-12-27 00:50:47,071 INFO L403 BasicCegarLoop]: Found error trace [2019-12-27 00:50:47,072 INFO L411 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-27 00:50:47,072 INFO L410 AbstractCegarLoop]: === Iteration 6 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-27 00:50:47,072 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-27 00:50:47,072 INFO L82 PathProgramCache]: Analyzing trace with hash 1556559509, now seen corresponding path program 3 times [2019-12-27 00:50:47,072 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-27 00:50:47,073 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1136324102] [2019-12-27 00:50:47,073 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-27 00:50:47,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-27 00:50:47,171 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2019-12-27 00:50:47,171 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1136324102] [2019-12-27 00:50:47,173 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-27 00:50:47,173 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-12-27 00:50:47,173 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1362127180] [2019-12-27 00:50:47,173 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-12-27 00:50:47,174 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-27 00:50:47,174 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-12-27 00:50:47,174 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2019-12-27 00:50:47,174 INFO L87 Difference]: Start difference. First operand 35375 states and 149293 transitions. Second operand 7 states. [2019-12-27 00:50:48,459 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-27 00:50:48,459 INFO L93 Difference]: Finished difference Result 70173 states and 303708 transitions. [2019-12-27 00:50:48,459 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2019-12-27 00:50:48,459 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 15 [2019-12-27 00:50:48,460 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-27 00:50:48,673 INFO L225 Difference]: With dead ends: 70173 [2019-12-27 00:50:48,673 INFO L226 Difference]: Without dead ends: 70173 [2019-12-27 00:50:48,674 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2019-12-27 00:50:49,185 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 70173 states. [2019-12-27 00:50:52,469 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 70173 to 34217. [2019-12-27 00:50:52,469 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 34217 states. [2019-12-27 00:50:52,575 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34217 states to 34217 states and 144870 transitions. [2019-12-27 00:50:52,575 INFO L78 Accepts]: Start accepts. Automaton has 34217 states and 144870 transitions. Word has length 15 [2019-12-27 00:50:52,575 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-27 00:50:52,575 INFO L462 AbstractCegarLoop]: Abstraction has 34217 states and 144870 transitions. [2019-12-27 00:50:52,575 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-12-27 00:50:52,576 INFO L276 IsEmpty]: Start isEmpty. Operand 34217 states and 144870 transitions. [2019-12-27 00:50:52,576 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2019-12-27 00:50:52,577 INFO L403 BasicCegarLoop]: Found error trace [2019-12-27 00:50:52,577 INFO L411 BasicCegarLoop]: trace histogram [4, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-27 00:50:52,577 INFO L410 AbstractCegarLoop]: === Iteration 7 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-27 00:50:52,577 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-27 00:50:52,577 INFO L82 PathProgramCache]: Analyzing trace with hash 343618584, now seen corresponding path program 1 times [2019-12-27 00:50:52,577 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-27 00:50:52,577 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1556129242] [2019-12-27 00:50:52,577 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-27 00:50:52,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-27 00:50:52,662 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2019-12-27 00:50:52,663 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1556129242] [2019-12-27 00:50:52,663 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-27 00:50:52,663 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-12-27 00:50:52,663 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [412881539] [2019-12-27 00:50:52,664 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-12-27 00:50:52,664 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-27 00:50:52,664 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-12-27 00:50:52,664 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2019-12-27 00:50:52,664 INFO L87 Difference]: Start difference. First operand 34217 states and 144870 transitions. Second operand 5 states. [2019-12-27 00:50:53,098 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-27 00:50:53,098 INFO L93 Difference]: Finished difference Result 55805 states and 237802 transitions. [2019-12-27 00:50:53,098 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-12-27 00:50:53,099 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 17 [2019-12-27 00:50:53,099 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-27 00:50:53,258 INFO L225 Difference]: With dead ends: 55805 [2019-12-27 00:50:53,258 INFO L226 Difference]: Without dead ends: 55805 [2019-12-27 00:50:53,259 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2019-12-27 00:50:54,193 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 55805 states. [2019-12-27 00:50:54,769 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 55805 to 35097. [2019-12-27 00:50:54,769 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 35097 states. [2019-12-27 00:50:54,877 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35097 states to 35097 states and 148158 transitions. [2019-12-27 00:50:54,877 INFO L78 Accepts]: Start accepts. Automaton has 35097 states and 148158 transitions. Word has length 17 [2019-12-27 00:50:54,877 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-27 00:50:54,877 INFO L462 AbstractCegarLoop]: Abstraction has 35097 states and 148158 transitions. [2019-12-27 00:50:54,877 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-12-27 00:50:54,877 INFO L276 IsEmpty]: Start isEmpty. Operand 35097 states and 148158 transitions. [2019-12-27 00:50:54,878 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2019-12-27 00:50:54,878 INFO L403 BasicCegarLoop]: Found error trace [2019-12-27 00:50:54,879 INFO L411 BasicCegarLoop]: trace histogram [3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-27 00:50:54,879 INFO L410 AbstractCegarLoop]: === Iteration 8 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-27 00:50:54,879 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-27 00:50:54,879 INFO L82 PathProgramCache]: Analyzing trace with hash -313386450, now seen corresponding path program 1 times [2019-12-27 00:50:54,879 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-27 00:50:54,879 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [480143425] [2019-12-27 00:50:54,879 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-27 00:50:54,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-27 00:50:54,979 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2019-12-27 00:50:54,979 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [480143425] [2019-12-27 00:50:54,979 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-27 00:50:54,979 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-12-27 00:50:54,980 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [327207541] [2019-12-27 00:50:54,980 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-12-27 00:50:54,980 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-27 00:50:54,980 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-12-27 00:50:54,981 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2019-12-27 00:50:54,981 INFO L87 Difference]: Start difference. First operand 35097 states and 148158 transitions. Second operand 7 states. [2019-12-27 00:50:56,495 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-27 00:50:56,495 INFO L93 Difference]: Finished difference Result 88162 states and 380607 transitions. [2019-12-27 00:50:56,495 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2019-12-27 00:50:56,495 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 18 [2019-12-27 00:50:56,495 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-27 00:50:56,746 INFO L225 Difference]: With dead ends: 88162 [2019-12-27 00:50:56,746 INFO L226 Difference]: Without dead ends: 88162 [2019-12-27 00:50:56,747 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=56, Invalid=154, Unknown=0, NotChecked=0, Total=210 [2019-12-27 00:50:57,302 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 88162 states. [2019-12-27 00:50:58,546 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 88162 to 35703. [2019-12-27 00:50:58,546 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 35703 states. [2019-12-27 00:50:58,655 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35703 states to 35703 states and 150675 transitions. [2019-12-27 00:50:58,655 INFO L78 Accepts]: Start accepts. Automaton has 35703 states and 150675 transitions. Word has length 18 [2019-12-27 00:50:58,655 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-27 00:50:58,655 INFO L462 AbstractCegarLoop]: Abstraction has 35703 states and 150675 transitions. [2019-12-27 00:50:58,655 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-12-27 00:50:58,655 INFO L276 IsEmpty]: Start isEmpty. Operand 35703 states and 150675 transitions. [2019-12-27 00:50:58,657 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2019-12-27 00:50:58,657 INFO L403 BasicCegarLoop]: Found error trace [2019-12-27 00:50:58,657 INFO L411 BasicCegarLoop]: trace histogram [3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-27 00:50:58,657 INFO L410 AbstractCegarLoop]: === Iteration 9 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-27 00:50:58,658 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-27 00:50:58,658 INFO L82 PathProgramCache]: Analyzing trace with hash 1790004250, now seen corresponding path program 1 times [2019-12-27 00:50:58,658 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-27 00:50:58,658 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [571029354] [2019-12-27 00:50:58,658 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-27 00:50:58,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-27 00:50:58,786 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2019-12-27 00:50:58,787 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [571029354] [2019-12-27 00:50:58,787 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2128389788] [2019-12-27 00:50:58,787 INFO L94 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 [2019-12-27 00:50:58,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-27 00:50:58,847 INFO L264 TraceCheckSpWp]: Trace formula consists of 78 conjuncts, 14 conjunts are in the unsatisfiable core [2019-12-27 00:50:58,849 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-27 00:50:58,922 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2019-12-27 00:50:58,923 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-12-27 00:50:58,923 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 6] total 9 [2019-12-27 00:50:58,923 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1419140952] [2019-12-27 00:50:58,924 INFO L442 AbstractCegarLoop]: Interpolant automaton has 11 states [2019-12-27 00:50:58,924 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-27 00:50:58,925 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2019-12-27 00:50:58,925 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=85, Unknown=0, NotChecked=0, Total=110 [2019-12-27 00:50:58,925 INFO L87 Difference]: Start difference. First operand 35703 states and 150675 transitions. Second operand 11 states. [2019-12-27 00:51:00,708 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-27 00:51:00,708 INFO L93 Difference]: Finished difference Result 99242 states and 428947 transitions. [2019-12-27 00:51:00,709 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2019-12-27 00:51:00,709 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 18 [2019-12-27 00:51:00,709 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-27 00:51:01,024 INFO L225 Difference]: With dead ends: 99242 [2019-12-27 00:51:01,024 INFO L226 Difference]: Without dead ends: 99242 [2019-12-27 00:51:01,025 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 12 SyntacticMatches, 1 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 130 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=147, Invalid=503, Unknown=0, NotChecked=0, Total=650 [2019-12-27 00:51:02,193 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 99242 states. [2019-12-27 00:51:02,954 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 99242 to 35973. [2019-12-27 00:51:02,954 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 35973 states. [2019-12-27 00:51:03,062 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35973 states to 35973 states and 151588 transitions. [2019-12-27 00:51:03,062 INFO L78 Accepts]: Start accepts. Automaton has 35973 states and 151588 transitions. Word has length 18 [2019-12-27 00:51:03,063 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-27 00:51:03,063 INFO L462 AbstractCegarLoop]: Abstraction has 35973 states and 151588 transitions. [2019-12-27 00:51:03,063 INFO L463 AbstractCegarLoop]: Interpolant automaton has 11 states. [2019-12-27 00:51:03,063 INFO L276 IsEmpty]: Start isEmpty. Operand 35973 states and 151588 transitions. [2019-12-27 00:51:03,065 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2019-12-27 00:51:03,065 INFO L403 BasicCegarLoop]: Found error trace [2019-12-27 00:51:03,065 INFO L411 BasicCegarLoop]: trace histogram [3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-27 00:51:03,267 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-12-27 00:51:03,268 INFO L410 AbstractCegarLoop]: === Iteration 10 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-27 00:51:03,269 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-27 00:51:03,269 INFO L82 PathProgramCache]: Analyzing trace with hash 512797580, now seen corresponding path program 2 times [2019-12-27 00:51:03,269 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-27 00:51:03,269 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [618109460] [2019-12-27 00:51:03,270 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-27 00:51:03,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-27 00:51:03,356 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2019-12-27 00:51:03,357 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [618109460] [2019-12-27 00:51:03,357 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-27 00:51:03,357 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-12-27 00:51:03,357 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [326811332] [2019-12-27 00:51:03,358 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-12-27 00:51:03,358 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-27 00:51:03,358 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-12-27 00:51:03,358 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2019-12-27 00:51:03,358 INFO L87 Difference]: Start difference. First operand 35973 states and 151588 transitions. Second operand 7 states. [2019-12-27 00:51:03,972 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-27 00:51:03,972 INFO L93 Difference]: Finished difference Result 66803 states and 288030 transitions. [2019-12-27 00:51:03,973 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2019-12-27 00:51:03,973 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 18 [2019-12-27 00:51:03,973 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-27 00:51:04,640 INFO L225 Difference]: With dead ends: 66803 [2019-12-27 00:51:04,640 INFO L226 Difference]: Without dead ends: 66803 [2019-12-27 00:51:04,640 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2019-12-27 00:51:05,132 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 66803 states. [2019-12-27 00:51:05,809 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 66803 to 34874. [2019-12-27 00:51:05,809 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 34874 states. [2019-12-27 00:51:06,546 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34874 states to 34874 states and 147305 transitions. [2019-12-27 00:51:06,547 INFO L78 Accepts]: Start accepts. Automaton has 34874 states and 147305 transitions. Word has length 18 [2019-12-27 00:51:06,547 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-27 00:51:06,547 INFO L462 AbstractCegarLoop]: Abstraction has 34874 states and 147305 transitions. [2019-12-27 00:51:06,547 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-12-27 00:51:06,547 INFO L276 IsEmpty]: Start isEmpty. Operand 34874 states and 147305 transitions. [2019-12-27 00:51:06,548 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2019-12-27 00:51:06,548 INFO L403 BasicCegarLoop]: Found error trace [2019-12-27 00:51:06,548 INFO L411 BasicCegarLoop]: trace histogram [3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-27 00:51:06,548 INFO L410 AbstractCegarLoop]: === Iteration 11 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-27 00:51:06,548 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-27 00:51:06,549 INFO L82 PathProgramCache]: Analyzing trace with hash 500391628, now seen corresponding path program 2 times [2019-12-27 00:51:06,549 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-27 00:51:06,549 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1140494918] [2019-12-27 00:51:06,549 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-27 00:51:06,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-27 00:51:06,656 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2019-12-27 00:51:06,656 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1140494918] [2019-12-27 00:51:06,657 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-27 00:51:06,657 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-12-27 00:51:06,657 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [602698094] [2019-12-27 00:51:06,657 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-12-27 00:51:06,657 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-27 00:51:06,658 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-12-27 00:51:06,658 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2019-12-27 00:51:06,658 INFO L87 Difference]: Start difference. First operand 34874 states and 147305 transitions. Second operand 7 states. [2019-12-27 00:51:07,296 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-27 00:51:07,296 INFO L93 Difference]: Finished difference Result 68481 states and 295620 transitions. [2019-12-27 00:51:07,296 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2019-12-27 00:51:07,297 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 18 [2019-12-27 00:51:07,297 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-27 00:51:07,487 INFO L225 Difference]: With dead ends: 68481 [2019-12-27 00:51:07,487 INFO L226 Difference]: Without dead ends: 68481 [2019-12-27 00:51:07,487 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2019-12-27 00:51:07,968 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 68481 states. [2019-12-27 00:51:09,036 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 68481 to 34882. [2019-12-27 00:51:09,037 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 34882 states. [2019-12-27 00:51:09,148 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34882 states to 34882 states and 147463 transitions. [2019-12-27 00:51:09,149 INFO L78 Accepts]: Start accepts. Automaton has 34882 states and 147463 transitions. Word has length 18 [2019-12-27 00:51:09,149 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-27 00:51:09,149 INFO L462 AbstractCegarLoop]: Abstraction has 34882 states and 147463 transitions. [2019-12-27 00:51:09,149 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-12-27 00:51:09,149 INFO L276 IsEmpty]: Start isEmpty. Operand 34882 states and 147463 transitions. [2019-12-27 00:51:09,151 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2019-12-27 00:51:09,151 INFO L403 BasicCegarLoop]: Found error trace [2019-12-27 00:51:09,151 INFO L411 BasicCegarLoop]: trace histogram [6, 5, 1, 1, 1, 1, 1, 1, 1] [2019-12-27 00:51:09,151 INFO L410 AbstractCegarLoop]: === Iteration 12 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-27 00:51:09,151 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-27 00:51:09,151 INFO L82 PathProgramCache]: Analyzing trace with hash -782396544, now seen corresponding path program 1 times [2019-12-27 00:51:09,152 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-27 00:51:09,152 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2096376212] [2019-12-27 00:51:09,152 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-27 00:51:09,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-27 00:51:09,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-27 00:51:09,169 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-27 00:51:09,170 INFO L476 BasicCegarLoop]: Counterexample might be feasible [2019-12-27 00:51:09,170 WARN L364 ceAbstractionStarter]: 5 thread instances were not sufficient, I will increase this number and restart the analysis [2019-12-27 00:51:09,170 INFO L340 ceAbstractionStarter]: Constructing petrified ICFG for 6 thread instances. [2019-12-27 00:51:09,177 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread6of6ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:51:09,178 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread6of6ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:51:09,178 WARN L315 ript$VariableManager]: TermVariabe thr1Thread6of6ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:51:09,178 WARN L315 ript$VariableManager]: TermVariabe thr1Thread6of6ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:51:09,178 WARN L315 ript$VariableManager]: TermVariabe thr1Thread6of6ForFork0_~v~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:51:09,178 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread6of6ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:51:09,179 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread6of6ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:51:09,179 WARN L315 ript$VariableManager]: TermVariabe thr1Thread6of6ForFork0_~v~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:51:09,179 WARN L315 ript$VariableManager]: TermVariabe thr1Thread6of6ForFork0_~v~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:51:09,179 WARN L315 ript$VariableManager]: TermVariabe thr1Thread6of6ForFork0_~v~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:51:09,179 WARN L315 ript$VariableManager]: TermVariabe thr1Thread6of6ForFork0_~v~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:51:09,179 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread6of6ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:51:09,180 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread6of6ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:51:09,180 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of6ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:51:09,180 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of6ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:51:09,180 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of6ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:51:09,180 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of6ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:51:09,180 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of6ForFork0_~v~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:51:09,180 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of6ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:51:09,181 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of6ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:51:09,181 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of6ForFork0_~v~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:51:09,181 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of6ForFork0_~v~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:51:09,181 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of6ForFork0_~v~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:51:09,181 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of6ForFork0_~v~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:51:09,181 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of6ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:51:09,182 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of6ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:51:09,182 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread5of6ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:51:09,182 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread5of6ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:51:09,182 WARN L315 ript$VariableManager]: TermVariabe thr1Thread5of6ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:51:09,182 WARN L315 ript$VariableManager]: TermVariabe thr1Thread5of6ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:51:09,182 WARN L315 ript$VariableManager]: TermVariabe thr1Thread5of6ForFork0_~v~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:51:09,183 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread5of6ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:51:09,183 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread5of6ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:51:09,183 WARN L315 ript$VariableManager]: TermVariabe thr1Thread5of6ForFork0_~v~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:51:09,183 WARN L315 ript$VariableManager]: TermVariabe thr1Thread5of6ForFork0_~v~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:51:09,183 WARN L315 ript$VariableManager]: TermVariabe thr1Thread5of6ForFork0_~v~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:51:09,183 WARN L315 ript$VariableManager]: TermVariabe thr1Thread5of6ForFork0_~v~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:51:09,184 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread5of6ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:51:09,184 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread5of6ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:51:09,184 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread4of6ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:51:09,184 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread4of6ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:51:09,184 WARN L315 ript$VariableManager]: TermVariabe thr1Thread4of6ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:51:09,184 WARN L315 ript$VariableManager]: TermVariabe thr1Thread4of6ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:51:09,184 WARN L315 ript$VariableManager]: TermVariabe thr1Thread4of6ForFork0_~v~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:51:09,185 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread4of6ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:51:09,185 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread4of6ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:51:09,185 WARN L315 ript$VariableManager]: TermVariabe thr1Thread4of6ForFork0_~v~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:51:09,185 WARN L315 ript$VariableManager]: TermVariabe thr1Thread4of6ForFork0_~v~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:51:09,185 WARN L315 ript$VariableManager]: TermVariabe thr1Thread4of6ForFork0_~v~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:51:09,185 WARN L315 ript$VariableManager]: TermVariabe thr1Thread4of6ForFork0_~v~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:51:09,186 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread4of6ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:51:09,186 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread4of6ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:51:09,186 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread3of6ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:51:09,186 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread3of6ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:51:09,186 WARN L315 ript$VariableManager]: TermVariabe thr1Thread3of6ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:51:09,186 WARN L315 ript$VariableManager]: TermVariabe thr1Thread3of6ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:51:09,186 WARN L315 ript$VariableManager]: TermVariabe thr1Thread3of6ForFork0_~v~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:51:09,187 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread3of6ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:51:09,187 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread3of6ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:51:09,187 WARN L315 ript$VariableManager]: TermVariabe thr1Thread3of6ForFork0_~v~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:51:09,187 WARN L315 ript$VariableManager]: TermVariabe thr1Thread3of6ForFork0_~v~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:51:09,187 WARN L315 ript$VariableManager]: TermVariabe thr1Thread3of6ForFork0_~v~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:51:09,187 WARN L315 ript$VariableManager]: TermVariabe thr1Thread3of6ForFork0_~v~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:51:09,188 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread3of6ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:51:09,188 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread3of6ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:51:09,188 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread2of6ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:51:09,188 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread2of6ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:51:09,188 WARN L315 ript$VariableManager]: TermVariabe thr1Thread2of6ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:51:09,188 WARN L315 ript$VariableManager]: TermVariabe thr1Thread2of6ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:51:09,189 WARN L315 ript$VariableManager]: TermVariabe thr1Thread2of6ForFork0_~v~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:51:09,189 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread2of6ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:51:09,189 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread2of6ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:51:09,189 WARN L315 ript$VariableManager]: TermVariabe thr1Thread2of6ForFork0_~v~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:51:09,189 WARN L315 ript$VariableManager]: TermVariabe thr1Thread2of6ForFork0_~v~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:51:09,189 WARN L315 ript$VariableManager]: TermVariabe thr1Thread2of6ForFork0_~v~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:51:09,190 WARN L315 ript$VariableManager]: TermVariabe thr1Thread2of6ForFork0_~v~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:51:09,190 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread2of6ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:51:09,190 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread2of6ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:51:09,190 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of6ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:51:09,190 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of6ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:51:09,190 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of6ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:51:09,191 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of6ForFork0_~v~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:51:09,191 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of6ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:51:09,192 WARN L315 ript$VariableManager]: TermVariabe thr1Thread2of6ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:51:09,192 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread2of6ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:51:09,193 WARN L315 ript$VariableManager]: TermVariabe thr1Thread2of6ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:51:09,193 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread2of6ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:51:09,193 WARN L315 ript$VariableManager]: TermVariabe thr1Thread2of6ForFork0_~v~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:51:09,205 WARN L315 ript$VariableManager]: TermVariabe thr1Thread3of6ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:51:09,205 WARN L315 ript$VariableManager]: TermVariabe thr1Thread3of6ForFork0_~v~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:51:09,206 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread3of6ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:51:09,206 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread3of6ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:51:09,206 WARN L315 ript$VariableManager]: TermVariabe thr1Thread3of6ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:51:09,216 WARN L315 ript$VariableManager]: TermVariabe thr1Thread4of6ForFork0_~v~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:51:09,216 WARN L315 ript$VariableManager]: TermVariabe thr1Thread4of6ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:51:09,216 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread4of6ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:51:09,216 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread4of6ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:51:09,216 WARN L315 ript$VariableManager]: TermVariabe thr1Thread4of6ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:51:09,218 WARN L315 ript$VariableManager]: TermVariabe thr1Thread5of6ForFork0_~v~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:51:09,218 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread5of6ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:51:09,218 WARN L315 ript$VariableManager]: TermVariabe thr1Thread5of6ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:51:09,218 WARN L315 ript$VariableManager]: TermVariabe thr1Thread5of6ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:51:09,219 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread5of6ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:51:09,220 WARN L315 ript$VariableManager]: TermVariabe thr1Thread6of6ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:51:09,220 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread6of6ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:51:09,220 WARN L315 ript$VariableManager]: TermVariabe thr1Thread6of6ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:51:09,220 WARN L315 ript$VariableManager]: TermVariabe thr1Thread6of6ForFork0_~v~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:51:09,221 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread6of6ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:51:09,222 INFO L249 AbstractCegarLoop]: Starting to check reachability of 8 error locations. [2019-12-27 00:51:09,222 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-12-27 00:51:09,222 INFO L374 AbstractCegarLoop]: Hoare is true [2019-12-27 00:51:09,222 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-12-27 00:51:09,222 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-12-27 00:51:09,222 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-12-27 00:51:09,223 INFO L378 AbstractCegarLoop]: Difference is false [2019-12-27 00:51:09,223 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-12-27 00:51:09,223 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-12-27 00:51:09,224 INFO L152 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 102 places, 102 transitions [2019-12-27 00:51:09,224 INFO L68 FinitePrefix]: Start finitePrefix. Operand has 102 places, 102 transitions [2019-12-27 00:51:09,246 INFO L132 PetriNetUnfolder]: 19/155 cut-off events. [2019-12-27 00:51:09,246 INFO L133 PetriNetUnfolder]: For 50/50 co-relation queries the response was YES. [2019-12-27 00:51:09,251 INFO L76 FinitePrefix]: Finished finitePrefix Result has 195 conditions, 155 events. 19/155 cut-off events. For 50/50 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 449 event pairs. 0/123 useless extension candidates. Maximal degree in co-relation 156. Up to 14 conditions per place. [2019-12-27 00:51:09,264 INFO L68 FinitePrefix]: Start finitePrefix. Operand has 102 places, 102 transitions [2019-12-27 00:51:09,287 INFO L132 PetriNetUnfolder]: 19/155 cut-off events. [2019-12-27 00:51:09,287 INFO L133 PetriNetUnfolder]: For 50/50 co-relation queries the response was YES. [2019-12-27 00:51:09,291 INFO L76 FinitePrefix]: Finished finitePrefix Result has 195 conditions, 155 events. 19/155 cut-off events. For 50/50 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 449 event pairs. 0/123 useless extension candidates. Maximal degree in co-relation 156. Up to 14 conditions per place. [2019-12-27 00:51:09,303 INFO L158 etLargeBlockEncoding]: Number of co-enabled transitions 7020 [2019-12-27 00:51:09,303 INFO L170 etLargeBlockEncoding]: Semantic Check. [2019-12-27 00:51:10,705 INFO L206 etLargeBlockEncoding]: Checked pairs total: 22314 [2019-12-27 00:51:10,706 INFO L214 etLargeBlockEncoding]: Total number of compositions: 56 [2019-12-27 00:51:10,707 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 54 places, 54 transitions Received shutdown request... [2019-12-27 00:52:16,827 WARN L527 AbstractCegarLoop]: Verification canceled [2019-12-27 00:52:16,829 WARN L227 ceAbstractionStarter]: Timeout [2019-12-27 00:52:16,830 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 27.12 12:52:16 BasicIcfg [2019-12-27 00:52:16,830 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-12-27 00:52:16,831 INFO L168 Benchmark]: Toolchain (without parser) took 217196.17 ms. Allocated memory was 137.4 MB in the beginning and 3.5 GB in the end (delta: 3.4 GB). Free memory was 100.9 MB in the beginning and 1.6 GB in the end (delta: -1.5 GB). Peak memory consumption was 2.8 GB. Max. memory is 7.1 GB. [2019-12-27 00:52:16,832 INFO L168 Benchmark]: CDTParser took 0.22 ms. Allocated memory is still 137.4 MB. Free memory was 120.5 MB in the beginning and 120.3 MB in the end (delta: 210.1 kB). Peak memory consumption was 210.1 kB. Max. memory is 7.1 GB. [2019-12-27 00:52:16,833 INFO L168 Benchmark]: CACSL2BoogieTranslator took 689.91 ms. Allocated memory was 137.4 MB in the beginning and 201.9 MB in the end (delta: 64.5 MB). Free memory was 100.6 MB in the beginning and 161.2 MB in the end (delta: -60.6 MB). Peak memory consumption was 25.5 MB. Max. memory is 7.1 GB. [2019-12-27 00:52:16,833 INFO L168 Benchmark]: Boogie Procedure Inliner took 44.30 ms. Allocated memory is still 201.9 MB. Free memory was 161.2 MB in the beginning and 159.2 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 7.1 GB. [2019-12-27 00:52:16,834 INFO L168 Benchmark]: Boogie Preprocessor took 25.44 ms. Allocated memory is still 201.9 MB. Free memory was 159.2 MB in the beginning and 157.8 MB in the end (delta: 1.4 MB). Peak memory consumption was 1.4 MB. Max. memory is 7.1 GB. [2019-12-27 00:52:16,834 INFO L168 Benchmark]: RCFGBuilder took 390.94 ms. Allocated memory is still 201.9 MB. Free memory was 157.8 MB in the beginning and 141.9 MB in the end (delta: 15.9 MB). Peak memory consumption was 15.9 MB. Max. memory is 7.1 GB. [2019-12-27 00:52:16,835 INFO L168 Benchmark]: TraceAbstraction took 216040.47 ms. Allocated memory was 201.9 MB in the beginning and 3.5 GB in the end (delta: 3.3 GB). Free memory was 141.2 MB in the beginning and 1.6 GB in the end (delta: -1.5 GB). Peak memory consumption was 2.8 GB. Max. memory is 7.1 GB. [2019-12-27 00:52:16,837 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22 ms. Allocated memory is still 137.4 MB. Free memory was 120.5 MB in the beginning and 120.3 MB in the end (delta: 210.1 kB). Peak memory consumption was 210.1 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 689.91 ms. Allocated memory was 137.4 MB in the beginning and 201.9 MB in the end (delta: 64.5 MB). Free memory was 100.6 MB in the beginning and 161.2 MB in the end (delta: -60.6 MB). Peak memory consumption was 25.5 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 44.30 ms. Allocated memory is still 201.9 MB. Free memory was 161.2 MB in the beginning and 159.2 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 25.44 ms. Allocated memory is still 201.9 MB. Free memory was 159.2 MB in the beginning and 157.8 MB in the end (delta: 1.4 MB). Peak memory consumption was 1.4 MB. Max. memory is 7.1 GB. * RCFGBuilder took 390.94 ms. Allocated memory is still 201.9 MB. Free memory was 157.8 MB in the beginning and 141.9 MB in the end (delta: 15.9 MB). Peak memory consumption was 15.9 MB. Max. memory is 7.1 GB. * TraceAbstraction took 216040.47 ms. Allocated memory was 201.9 MB in the beginning and 3.5 GB in the end (delta: 3.3 GB). Free memory was 141.2 MB in the beginning and 1.6 GB in the end (delta: -1.5 GB). Peak memory consumption was 2.8 GB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks LbeTime: 1.0s, 32 ProgramPointsBefore, 9 ProgramPointsAfterwards, 32 TransitionsBefore, 8 TransitionsAfterwards, 260 CoEnabledTransitionPairs, 6 FixpointIterations, 7 TrivialSequentialCompositions, 19 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 4 ConcurrentYvCompositions, 3 ChoiceCompositions, 123 VarBasedMoverChecksPositive, 0 VarBasedMoverChecksNegative, 0 SemBasedMoverChecksPositive, 0 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.0s, 0 MoverChecksTotal, 191 CheckedPairsTotal, 30 TotalNumberOfCompositions - StatisticsResult: PetriNetLargeBlockEncoding benchmarks LbeTime: 0.6s, 46 ProgramPointsBefore, 22 ProgramPointsAfterwards, 46 TransitionsBefore, 22 TransitionsAfterwards, 884 CoEnabledTransitionPairs, 5 FixpointIterations, 7 TrivialSequentialCompositions, 14 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 5 ConcurrentYvCompositions, 3 ChoiceCompositions, 463 VarBasedMoverChecksPositive, 29 VarBasedMoverChecksNegative, 8 SemBasedMoverChecksPositive, 33 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.2s, 0 MoverChecksTotal, 2180 CheckedPairsTotal, 26 TotalNumberOfCompositions - StatisticsResult: PetriNetLargeBlockEncoding benchmarks LbeTime: 0.8s, 60 ProgramPointsBefore, 30 ProgramPointsAfterwards, 60 TransitionsBefore, 30 TransitionsAfterwards, 1872 CoEnabledTransitionPairs, 5 FixpointIterations, 7 TrivialSequentialCompositions, 18 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 9 ConcurrentYvCompositions, 4 ChoiceCompositions, 888 VarBasedMoverChecksPositive, 52 VarBasedMoverChecksNegative, 16 SemBasedMoverChecksPositive, 51 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.3s, 0 MoverChecksTotal, 5122 CheckedPairsTotal, 34 TotalNumberOfCompositions - StatisticsResult: PetriNetLargeBlockEncoding benchmarks LbeTime: 1.1s, 74 ProgramPointsBefore, 37 ProgramPointsAfterwards, 74 TransitionsBefore, 37 TransitionsAfterwards, 3224 CoEnabledTransitionPairs, 5 FixpointIterations, 7 TrivialSequentialCompositions, 25 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 10 ConcurrentYvCompositions, 5 ChoiceCompositions, 1464 VarBasedMoverChecksPositive, 78 VarBasedMoverChecksNegative, 45 SemBasedMoverChecksPositive, 73 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.4s, 0 MoverChecksTotal, 9341 CheckedPairsTotal, 42 TotalNumberOfCompositions - StatisticsResult: PetriNetLargeBlockEncoding benchmarks LbeTime: 1.2s, 88 ProgramPointsBefore, 47 ProgramPointsAfterwards, 88 TransitionsBefore, 47 TransitionsAfterwards, 4940 CoEnabledTransitionPairs, 6 FixpointIterations, 7 TrivialSequentialCompositions, 33 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 11 ConcurrentYvCompositions, 6 ChoiceCompositions, 2183 VarBasedMoverChecksPositive, 184 VarBasedMoverChecksNegative, 139 SemBasedMoverChecksPositive, 78 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.5s, 0 MoverChecksTotal, 17447 CheckedPairsTotal, 51 TotalNumberOfCompositions - StatisticsResult: PetriNetLargeBlockEncoding benchmarks LbeTime: 1.4s, 102 ProgramPointsBefore, 54 ProgramPointsAfterwards, 102 TransitionsBefore, 54 TransitionsAfterwards, 7020 CoEnabledTransitionPairs, 5 FixpointIterations, 7 TrivialSequentialCompositions, 35 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 14 ConcurrentYvCompositions, 7 ChoiceCompositions, 3584 VarBasedMoverChecksPositive, 168 VarBasedMoverChecksNegative, 119 SemBasedMoverChecksPositive, 118 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.6s, 0 MoverChecksTotal, 22314 CheckedPairsTotal, 56 TotalNumberOfCompositions - TimeoutResultAtElement [Line: 695]: Timeout (TraceAbstraction) Unable to prove that call of __VERIFIER_error() unreachable (line 695). Cancelled while PetriNet2FiniteAutomaton was constructing automaton for Petri net that has has 54 places, 54 transitions. Already constructed 188872 states. Currently 47491 states in worklist.. - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 29 locations, 1 error locations. Result: TIMEOUT, OverallTime: 67.6s, OverallIterations: 0, TraceHistogramMax: 0, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: No data available, PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown