/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-MCR.epf -i ../../../trunk/examples/svcomp/pthread-nondet/nondet-loop-bound-variant-1.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-4336eb1 [2019-12-27 19:12:07,281 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-12-27 19:12:07,284 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-12-27 19:12:07,302 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-12-27 19:12:07,303 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-12-27 19:12:07,305 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-12-27 19:12:07,307 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-12-27 19:12:07,317 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-12-27 19:12:07,320 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-12-27 19:12:07,323 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-12-27 19:12:07,325 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-12-27 19:12:07,326 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-12-27 19:12:07,327 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-12-27 19:12:07,328 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-12-27 19:12:07,331 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-12-27 19:12:07,332 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-12-27 19:12:07,334 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-12-27 19:12:07,335 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-12-27 19:12:07,336 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-12-27 19:12:07,341 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-12-27 19:12:07,345 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-12-27 19:12:07,349 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-12-27 19:12:07,350 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-12-27 19:12:07,351 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-12-27 19:12:07,353 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-12-27 19:12:07,353 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-12-27 19:12:07,353 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-12-27 19:12:07,355 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-12-27 19:12:07,356 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-12-27 19:12:07,357 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-12-27 19:12:07,357 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-12-27 19:12:07,358 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-12-27 19:12:07,359 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-12-27 19:12:07,360 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-12-27 19:12:07,361 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-12-27 19:12:07,361 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-12-27 19:12:07,362 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-12-27 19:12:07,362 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-12-27 19:12:07,362 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-12-27 19:12:07,363 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-12-27 19:12:07,364 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-12-27 19:12:07,365 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-MCR.epf [2019-12-27 19:12:07,394 INFO L113 SettingsManager]: Loading preferences was successful [2019-12-27 19:12:07,394 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-12-27 19:12:07,396 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-12-27 19:12:07,396 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-12-27 19:12:07,396 INFO L138 SettingsManager]: * Use SBE=true [2019-12-27 19:12:07,396 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-12-27 19:12:07,396 INFO L138 SettingsManager]: * sizeof long=4 [2019-12-27 19:12:07,397 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-12-27 19:12:07,397 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-12-27 19:12:07,397 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-12-27 19:12:07,397 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-12-27 19:12:07,397 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-12-27 19:12:07,398 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-12-27 19:12:07,398 INFO L138 SettingsManager]: * sizeof long double=12 [2019-12-27 19:12:07,398 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-12-27 19:12:07,398 INFO L138 SettingsManager]: * Use constant arrays=true [2019-12-27 19:12:07,398 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-12-27 19:12:07,399 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-12-27 19:12:07,399 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-12-27 19:12:07,399 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-12-27 19:12:07,399 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-12-27 19:12:07,399 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-12-27 19:12:07,400 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-12-27 19:12:07,400 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-12-27 19:12:07,400 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-12-27 19:12:07,400 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-12-27 19:12:07,400 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-12-27 19:12:07,400 INFO L138 SettingsManager]: * Override the interpolant automaton setting of the refinement strategy=true [2019-12-27 19:12:07,401 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-12-27 19:12:07,401 INFO L138 SettingsManager]: * Interpolant automaton=MCR [2019-12-27 19:12:07,401 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-12-27 19:12:07,676 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-12-27 19:12:07,695 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-12-27 19:12:07,698 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-12-27 19:12:07,700 INFO L271 PluginConnector]: Initializing CDTParser... [2019-12-27 19:12:07,701 INFO L275 PluginConnector]: CDTParser initialized [2019-12-27 19:12:07,702 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-nondet/nondet-loop-bound-variant-1.i [2019-12-27 19:12:07,771 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8a6854d20/ac251db88f2b4798925e612dbf66a027/FLAGda3766fef [2019-12-27 19:12:08,327 INFO L306 CDTParser]: Found 1 translation units. [2019-12-27 19:12:08,328 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-nondet/nondet-loop-bound-variant-1.i [2019-12-27 19:12:08,342 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8a6854d20/ac251db88f2b4798925e612dbf66a027/FLAGda3766fef [2019-12-27 19:12:08,621 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8a6854d20/ac251db88f2b4798925e612dbf66a027 [2019-12-27 19:12:08,631 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-12-27 19:12:08,632 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2019-12-27 19:12:08,633 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-12-27 19:12:08,633 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-12-27 19:12:08,637 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-12-27 19:12:08,638 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.12 07:12:08" (1/1) ... [2019-12-27 19:12:08,640 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@75cdc2a9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 07:12:08, skipping insertion in model container [2019-12-27 19:12:08,641 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.12 07:12:08" (1/1) ... [2019-12-27 19:12:08,648 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-12-27 19:12:08,694 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-12-27 19:12:09,095 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-27 19:12:09,116 INFO L203 MainTranslator]: Completed pre-run [2019-12-27 19:12:09,196 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-27 19:12:09,268 INFO L208 MainTranslator]: Completed translation [2019-12-27 19:12:09,268 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 07:12:09 WrapperNode [2019-12-27 19:12:09,268 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-12-27 19:12:09,269 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-12-27 19:12:09,269 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-12-27 19:12:09,270 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-12-27 19:12:09,280 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 07:12:09" (1/1) ... [2019-12-27 19:12:09,298 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 07:12:09" (1/1) ... [2019-12-27 19:12:09,326 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-12-27 19:12:09,326 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-12-27 19:12:09,326 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-12-27 19:12:09,326 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-12-27 19:12:09,337 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 07:12:09" (1/1) ... [2019-12-27 19:12:09,337 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 07:12:09" (1/1) ... [2019-12-27 19:12:09,347 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 07:12:09" (1/1) ... [2019-12-27 19:12:09,347 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 07:12:09" (1/1) ... [2019-12-27 19:12:09,353 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 07:12:09" (1/1) ... [2019-12-27 19:12:09,359 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 07:12:09" (1/1) ... [2019-12-27 19:12:09,362 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 07:12:09" (1/1) ... [2019-12-27 19:12:09,365 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-12-27 19:12:09,365 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-12-27 19:12:09,365 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-12-27 19:12:09,366 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-12-27 19:12:09,366 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 07:12:09" (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 19:12:09,430 INFO L130 BoogieDeclarations]: Found specification of procedure thr2 [2019-12-27 19:12:09,430 INFO L138 BoogieDeclarations]: Found implementation of procedure thr2 [2019-12-27 19:12:09,430 INFO L130 BoogieDeclarations]: Found specification of procedure thr1 [2019-12-27 19:12:09,430 INFO L138 BoogieDeclarations]: Found implementation of procedure thr1 [2019-12-27 19:12:09,431 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-12-27 19:12:09,431 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2019-12-27 19:12:09,431 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-12-27 19:12:09,431 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-12-27 19:12:09,431 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-12-27 19:12:09,431 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-12-27 19:12:09,431 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-12-27 19:12:09,433 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 19:12:09,817 INFO L282 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-12-27 19:12:09,817 INFO L287 CfgBuilder]: Removed 7 assume(true) statements. [2019-12-27 19:12:09,818 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.12 07:12:09 BoogieIcfgContainer [2019-12-27 19:12:09,819 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-12-27 19:12:09,820 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-12-27 19:12:09,820 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-12-27 19:12:09,823 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-12-27 19:12:09,824 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 27.12 07:12:08" (1/3) ... [2019-12-27 19:12:09,824 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@752007a4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.12 07:12:09, skipping insertion in model container [2019-12-27 19:12:09,825 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 07:12:09" (2/3) ... [2019-12-27 19:12:09,825 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@752007a4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.12 07:12:09, skipping insertion in model container [2019-12-27 19:12:09,825 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.12 07:12:09" (3/3) ... [2019-12-27 19:12:09,827 INFO L109 eAbstractionObserver]: Analyzing ICFG nondet-loop-bound-variant-1.i [2019-12-27 19:12:09,837 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2019-12-27 19:12:09,837 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-12-27 19:12:09,843 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-12-27 19:12:09,844 INFO L340 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2019-12-27 19:12:09,871 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 19:12:09,872 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 19:12:09,872 WARN L315 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 19:12:09,872 WARN L315 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 19:12:09,873 WARN L315 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 19:12:09,873 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork0_#t~nondet2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 19:12:09,874 WARN L315 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork0_~k~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 19:12:09,874 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork0_#t~nondet2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 19:12:09,874 WARN L315 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork0_~k~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 19:12:09,875 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork0_#t~nondet3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 19:12:09,875 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork0_#t~nondet3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 19:12:09,875 WARN L315 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 19:12:09,876 WARN L315 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork0_~k~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 19:12:09,876 WARN L315 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork0_~k~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 19:12:09,876 WARN L315 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 19:12:09,877 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 19:12:09,877 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 19:12:09,878 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 19:12:09,878 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 19:12:09,878 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 19:12:09,879 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 19:12:09,879 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 19:12:09,879 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 19:12:09,880 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 19:12:09,880 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 19:12:09,884 WARN L315 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork0_~k~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 19:12:09,884 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 19:12:09,885 WARN L315 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 19:12:09,885 WARN L315 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 19:12:09,885 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 19:12:09,885 WARN L315 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 19:12:09,886 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork0_#t~nondet2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 19:12:09,886 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork0_#t~nondet3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 19:12:09,892 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 19:12:09,892 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 19:12:09,892 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 19:12:09,893 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 19:12:09,893 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 19:12:09,893 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 19:12:09,917 INFO L249 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2019-12-27 19:12:09,940 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-12-27 19:12:09,940 INFO L374 AbstractCegarLoop]: Hoare is true [2019-12-27 19:12:09,940 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-12-27 19:12:09,940 INFO L376 AbstractCegarLoop]: Backedges is MCR [2019-12-27 19:12:09,941 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-12-27 19:12:09,941 INFO L378 AbstractCegarLoop]: Difference is false [2019-12-27 19:12:09,941 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-12-27 19:12:09,941 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-12-27 19:12:09,956 INFO L152 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 69 places, 66 transitions [2019-12-27 19:12:09,958 INFO L68 FinitePrefix]: Start finitePrefix. Operand has 69 places, 66 transitions [2019-12-27 19:12:10,010 INFO L132 PetriNetUnfolder]: 4/76 cut-off events. [2019-12-27 19:12:10,010 INFO L133 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2019-12-27 19:12:10,018 INFO L76 FinitePrefix]: Finished finitePrefix Result has 84 conditions, 76 events. 4/76 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 102 event pairs. 0/69 useless extension candidates. Maximal degree in co-relation 55. Up to 4 conditions per place. [2019-12-27 19:12:10,022 INFO L68 FinitePrefix]: Start finitePrefix. Operand has 69 places, 66 transitions [2019-12-27 19:12:10,046 INFO L132 PetriNetUnfolder]: 4/76 cut-off events. [2019-12-27 19:12:10,046 INFO L133 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2019-12-27 19:12:10,048 INFO L76 FinitePrefix]: Finished finitePrefix Result has 84 conditions, 76 events. 4/76 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 102 event pairs. 0/69 useless extension candidates. Maximal degree in co-relation 55. Up to 4 conditions per place. [2019-12-27 19:12:10,052 INFO L158 etLargeBlockEncoding]: Number of co-enabled transitions 992 [2019-12-27 19:12:10,053 INFO L170 etLargeBlockEncoding]: Semantic Check. [2019-12-27 19:12:12,356 WARN L192 SmtUtils]: Spent 290.00 ms on a formula simplification. DAG size of input: 104 DAG size of output: 100 [2019-12-27 19:12:12,489 WARN L192 SmtUtils]: Spent 126.00 ms on a formula simplification that was a NOOP. DAG size: 92 [2019-12-27 19:12:12,493 INFO L206 etLargeBlockEncoding]: Checked pairs total: 729 [2019-12-27 19:12:12,493 INFO L214 etLargeBlockEncoding]: Total number of compositions: 57 [2019-12-27 19:12:12,496 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 15 places, 12 transitions [2019-12-27 19:12:12,504 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 44 states. [2019-12-27 19:12:12,506 INFO L276 IsEmpty]: Start isEmpty. Operand 44 states. [2019-12-27 19:12:12,512 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2019-12-27 19:12:12,512 INFO L403 BasicCegarLoop]: Found error trace [2019-12-27 19:12:12,513 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1] [2019-12-27 19:12:12,514 INFO L410 AbstractCegarLoop]: === Iteration 1 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION]=== [2019-12-27 19:12:12,519 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-27 19:12:12,519 INFO L82 PathProgramCache]: Analyzing trace with hash 259287, now seen corresponding path program 1 times [2019-12-27 19:12:12,527 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-27 19:12:12,528 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [723389307] [2019-12-27 19:12:12,528 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-27 19:12:12,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-27 19:12:12,704 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 19:12:12,705 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [723389307] [2019-12-27 19:12:12,706 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-27 19:12:12,706 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2019-12-27 19:12:12,707 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [270073413] [2019-12-27 19:12:12,708 INFO L132 pAbStrategyModuleMcr]: Constructing automaton for MCR equivalence class. [2019-12-27 19:12:12,712 INFO L197 pAbStrategyModuleMcr]: Started intersection. [2019-12-27 19:12:12,723 INFO L208 pAbStrategyModuleMcr]: Finished intersection with 4 states and 3 transitions. [2019-12-27 19:12:12,723 INFO L219 pAbStrategyModuleMcr]: Constructing interpolant automaton by labelling MCR automaton. [2019-12-27 19:12:12,727 INFO L288 pAbStrategyModuleMcr]: Construction finished. Needed to calculate wp 0 times. [2019-12-27 19:12:12,727 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-12-27 19:12:12,727 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-27 19:12:12,741 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-12-27 19:12:12,742 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-27 19:12:12,744 INFO L87 Difference]: Start difference. First operand 44 states. Second operand 3 states. [2019-12-27 19:12:12,791 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-27 19:12:12,791 INFO L93 Difference]: Finished difference Result 35 states and 59 transitions. [2019-12-27 19:12:12,793 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-27 19:12:12,794 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 3 [2019-12-27 19:12:12,794 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-27 19:12:12,807 INFO L225 Difference]: With dead ends: 35 [2019-12-27 19:12:12,807 INFO L226 Difference]: Without dead ends: 31 [2019-12-27 19:12:12,808 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-27 19:12:12,828 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31 states. [2019-12-27 19:12:12,847 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31 to 31. [2019-12-27 19:12:12,849 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 31 states. [2019-12-27 19:12:12,852 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 51 transitions. [2019-12-27 19:12:12,857 INFO L78 Accepts]: Start accepts. Automaton has 31 states and 51 transitions. Word has length 3 [2019-12-27 19:12:12,857 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-27 19:12:12,858 INFO L462 AbstractCegarLoop]: Abstraction has 31 states and 51 transitions. [2019-12-27 19:12:12,859 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-12-27 19:12:12,866 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 51 transitions. [2019-12-27 19:12:12,867 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2019-12-27 19:12:12,867 INFO L403 BasicCegarLoop]: Found error trace [2019-12-27 19:12:12,867 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2019-12-27 19:12:12,867 INFO L410 AbstractCegarLoop]: === Iteration 2 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION]=== [2019-12-27 19:12:12,867 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-27 19:12:12,869 INFO L82 PathProgramCache]: Analyzing trace with hash -1095237165, now seen corresponding path program 1 times [2019-12-27 19:12:12,869 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-27 19:12:12,869 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1097995522] [2019-12-27 19:12:12,870 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-27 19:12:12,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-27 19:12:13,034 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 19:12:13,035 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1097995522] [2019-12-27 19:12:13,035 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-27 19:12:13,035 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-12-27 19:12:13,035 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [282626576] [2019-12-27 19:12:13,036 INFO L132 pAbStrategyModuleMcr]: Constructing automaton for MCR equivalence class. [2019-12-27 19:12:13,037 INFO L197 pAbStrategyModuleMcr]: Started intersection. [2019-12-27 19:12:13,040 INFO L208 pAbStrategyModuleMcr]: Finished intersection with 8 states and 7 transitions. [2019-12-27 19:12:13,041 INFO L219 pAbStrategyModuleMcr]: Constructing interpolant automaton by labelling MCR automaton. [2019-12-27 19:12:13,041 INFO L288 pAbStrategyModuleMcr]: Construction finished. Needed to calculate wp 0 times. [2019-12-27 19:12:13,042 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-12-27 19:12:13,042 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-27 19:12:13,043 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-12-27 19:12:13,043 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-12-27 19:12:13,043 INFO L87 Difference]: Start difference. First operand 31 states and 51 transitions. Second operand 4 states. [2019-12-27 19:12:13,074 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-27 19:12:13,074 INFO L93 Difference]: Finished difference Result 26 states and 42 transitions. [2019-12-27 19:12:13,076 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-12-27 19:12:13,076 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 7 [2019-12-27 19:12:13,076 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-27 19:12:13,076 INFO L225 Difference]: With dead ends: 26 [2019-12-27 19:12:13,077 INFO L226 Difference]: Without dead ends: 24 [2019-12-27 19:12:13,077 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-12-27 19:12:13,078 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24 states. [2019-12-27 19:12:13,081 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24 to 24. [2019-12-27 19:12:13,081 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 24 states. [2019-12-27 19:12:13,083 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 39 transitions. [2019-12-27 19:12:13,083 INFO L78 Accepts]: Start accepts. Automaton has 24 states and 39 transitions. Word has length 7 [2019-12-27 19:12:13,083 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-27 19:12:13,083 INFO L462 AbstractCegarLoop]: Abstraction has 24 states and 39 transitions. [2019-12-27 19:12:13,084 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-12-27 19:12:13,084 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 39 transitions. [2019-12-27 19:12:13,084 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2019-12-27 19:12:13,085 INFO L403 BasicCegarLoop]: Found error trace [2019-12-27 19:12:13,085 INFO L411 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1] [2019-12-27 19:12:13,085 INFO L410 AbstractCegarLoop]: === Iteration 3 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION]=== [2019-12-27 19:12:13,085 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-27 19:12:13,086 INFO L82 PathProgramCache]: Analyzing trace with hash 407361282, now seen corresponding path program 1 times [2019-12-27 19:12:13,086 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-27 19:12:13,086 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [601265302] [2019-12-27 19:12:13,086 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-27 19:12:13,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-27 19:12:13,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-27 19:12:13,189 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-27 19:12:13,190 INFO L476 BasicCegarLoop]: Counterexample might be feasible [2019-12-27 19:12:13,190 WARN L364 ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis [2019-12-27 19:12:13,190 INFO L340 ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances. [2019-12-27 19:12:13,204 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread2of2ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 19:12:13,204 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread2of2ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 19:12:13,204 WARN L315 ript$VariableManager]: TermVariabe thr2Thread2of2ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 19:12:13,205 WARN L315 ript$VariableManager]: TermVariabe thr2Thread2of2ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 19:12:13,206 WARN L315 ript$VariableManager]: TermVariabe thr2Thread2of2ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 19:12:13,207 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread2of2ForFork0_#t~nondet2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 19:12:13,207 WARN L315 ript$VariableManager]: TermVariabe thr2Thread2of2ForFork0_~k~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 19:12:13,207 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread2of2ForFork0_#t~nondet2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 19:12:13,207 WARN L315 ript$VariableManager]: TermVariabe thr2Thread2of2ForFork0_~k~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 19:12:13,207 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread2of2ForFork0_#t~nondet3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 19:12:13,207 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread2of2ForFork0_#t~nondet3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 19:12:13,208 WARN L315 ript$VariableManager]: TermVariabe thr2Thread2of2ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 19:12:13,208 WARN L315 ript$VariableManager]: TermVariabe thr2Thread2of2ForFork0_~k~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 19:12:13,208 WARN L315 ript$VariableManager]: TermVariabe thr2Thread2of2ForFork0_~k~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 19:12:13,208 WARN L315 ript$VariableManager]: TermVariabe thr2Thread2of2ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 19:12:13,208 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread1of2ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 19:12:13,209 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread1of2ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 19:12:13,209 WARN L315 ript$VariableManager]: TermVariabe thr2Thread1of2ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 19:12:13,209 WARN L315 ript$VariableManager]: TermVariabe thr2Thread1of2ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 19:12:13,209 WARN L315 ript$VariableManager]: TermVariabe thr2Thread1of2ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 19:12:13,209 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread1of2ForFork0_#t~nondet2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 19:12:13,209 WARN L315 ript$VariableManager]: TermVariabe thr2Thread1of2ForFork0_~k~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 19:12:13,210 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread1of2ForFork0_#t~nondet2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 19:12:13,210 WARN L315 ript$VariableManager]: TermVariabe thr2Thread1of2ForFork0_~k~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 19:12:13,210 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread1of2ForFork0_#t~nondet3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 19:12:13,210 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread1of2ForFork0_#t~nondet3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 19:12:13,210 WARN L315 ript$VariableManager]: TermVariabe thr2Thread1of2ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 19:12:13,210 WARN L315 ript$VariableManager]: TermVariabe thr2Thread1of2ForFork0_~k~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 19:12:13,212 WARN L315 ript$VariableManager]: TermVariabe thr2Thread1of2ForFork0_~k~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 19:12:13,212 WARN L315 ript$VariableManager]: TermVariabe thr2Thread1of2ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 19:12:13,213 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 19:12:13,213 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 19:12:13,213 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of2ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 19:12:13,213 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of2ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 19:12:13,214 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 19:12:13,215 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of2ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 19:12:13,215 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 19:12:13,215 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of2ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 19:12:13,215 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of2ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 19:12:13,215 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of2ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 19:12:13,216 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 19:12:13,216 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 19:12:13,216 WARN L315 ript$VariableManager]: TermVariabe thr1Thread2of2ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 19:12:13,216 WARN L315 ript$VariableManager]: TermVariabe thr1Thread2of2ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 19:12:13,217 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 19:12:13,217 WARN L315 ript$VariableManager]: TermVariabe thr1Thread2of2ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 19:12:13,217 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 19:12:13,218 WARN L315 ript$VariableManager]: TermVariabe thr1Thread2of2ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 19:12:13,218 WARN L315 ript$VariableManager]: TermVariabe thr1Thread2of2ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 19:12:13,219 WARN L315 ript$VariableManager]: TermVariabe thr1Thread2of2ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 19:12:13,220 WARN L315 ript$VariableManager]: TermVariabe thr2Thread1of2ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 19:12:13,220 WARN L315 ript$VariableManager]: TermVariabe thr2Thread1of2ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 19:12:13,220 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread1of2ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 19:12:13,220 WARN L315 ript$VariableManager]: TermVariabe thr2Thread1of2ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 19:12:13,220 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread1of2ForFork0_#t~nondet3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 19:12:13,220 WARN L315 ript$VariableManager]: TermVariabe thr2Thread1of2ForFork0_~k~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 19:12:13,221 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread1of2ForFork0_#t~nondet2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 19:12:13,221 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread1of2ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 19:12:13,231 WARN L315 ript$VariableManager]: TermVariabe thr2Thread2of2ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 19:12:13,231 WARN L315 ript$VariableManager]: TermVariabe thr2Thread2of2ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 19:12:13,232 WARN L315 ript$VariableManager]: TermVariabe thr2Thread2of2ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 19:12:13,232 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread2of2ForFork0_#t~nondet3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 19:12:13,232 WARN L315 ript$VariableManager]: TermVariabe thr2Thread2of2ForFork0_~k~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 19:12:13,232 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread2of2ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 19:12:13,233 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread2of2ForFork0_#t~nondet2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 19:12:13,237 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread2of2ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 19:12:13,241 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 19:12:13,241 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of2ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 19:12:13,241 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of2ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 19:12:13,242 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 19:12:13,242 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of2ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 19:12:13,242 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 19:12:13,244 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 19:12:13,244 WARN L315 ript$VariableManager]: TermVariabe thr1Thread2of2ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 19:12:13,244 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 19:12:13,244 WARN L315 ript$VariableManager]: TermVariabe thr1Thread2of2ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 19:12:13,245 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 19:12:13,245 WARN L315 ript$VariableManager]: TermVariabe thr1Thread2of2ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 19:12:13,246 INFO L249 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2019-12-27 19:12:13,246 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-12-27 19:12:13,246 INFO L374 AbstractCegarLoop]: Hoare is true [2019-12-27 19:12:13,246 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-12-27 19:12:13,246 INFO L376 AbstractCegarLoop]: Backedges is MCR [2019-12-27 19:12:13,246 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-12-27 19:12:13,246 INFO L378 AbstractCegarLoop]: Difference is false [2019-12-27 19:12:13,247 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-12-27 19:12:13,247 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-12-27 19:12:13,249 INFO L152 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 95 places, 90 transitions [2019-12-27 19:12:13,249 INFO L68 FinitePrefix]: Start finitePrefix. Operand has 95 places, 90 transitions [2019-12-27 19:12:13,277 INFO L132 PetriNetUnfolder]: 6/105 cut-off events. [2019-12-27 19:12:13,277 INFO L133 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2019-12-27 19:12:13,281 INFO L76 FinitePrefix]: Finished finitePrefix Result has 119 conditions, 105 events. 6/105 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 181 event pairs. 0/95 useless extension candidates. Maximal degree in co-relation 114. Up to 6 conditions per place. [2019-12-27 19:12:13,289 INFO L68 FinitePrefix]: Start finitePrefix. Operand has 95 places, 90 transitions [2019-12-27 19:12:13,327 INFO L132 PetriNetUnfolder]: 6/105 cut-off events. [2019-12-27 19:12:13,327 INFO L133 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2019-12-27 19:12:13,332 INFO L76 FinitePrefix]: Finished finitePrefix Result has 119 conditions, 105 events. 6/105 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 181 event pairs. 0/95 useless extension candidates. Maximal degree in co-relation 114. Up to 6 conditions per place. [2019-12-27 19:12:13,339 INFO L158 etLargeBlockEncoding]: Number of co-enabled transitions 2024 [2019-12-27 19:12:13,339 INFO L170 etLargeBlockEncoding]: Semantic Check. [2019-12-27 19:12:14,849 WARN L192 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 48 [2019-12-27 19:12:15,238 WARN L192 SmtUtils]: Spent 130.00 ms on a formula simplification that was a NOOP. DAG size: 96 [2019-12-27 19:12:15,364 WARN L192 SmtUtils]: Spent 120.00 ms on a formula simplification that was a NOOP. DAG size: 92 [2019-12-27 19:12:15,642 WARN L192 SmtUtils]: Spent 271.00 ms on a formula simplification. DAG size of input: 104 DAG size of output: 98 [2019-12-27 19:12:15,759 WARN L192 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 92 [2019-12-27 19:12:15,764 INFO L206 etLargeBlockEncoding]: Checked pairs total: 2838 [2019-12-27 19:12:15,765 INFO L214 etLargeBlockEncoding]: Total number of compositions: 69 [2019-12-27 19:12:15,765 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 32 places, 29 transitions [2019-12-27 19:12:15,800 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 755 states. [2019-12-27 19:12:15,800 INFO L276 IsEmpty]: Start isEmpty. Operand 755 states. [2019-12-27 19:12:15,801 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2019-12-27 19:12:15,801 INFO L403 BasicCegarLoop]: Found error trace [2019-12-27 19:12:15,801 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1] [2019-12-27 19:12:15,801 INFO L410 AbstractCegarLoop]: === Iteration 1 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-27 19:12:15,802 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-27 19:12:15,802 INFO L82 PathProgramCache]: Analyzing trace with hash 443582, now seen corresponding path program 1 times [2019-12-27 19:12:15,802 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-27 19:12:15,802 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [492272758] [2019-12-27 19:12:15,803 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-27 19:12:15,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-27 19:12:15,852 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 19:12:15,853 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [492272758] [2019-12-27 19:12:15,853 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-27 19:12:15,853 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2019-12-27 19:12:15,853 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [576745745] [2019-12-27 19:12:15,854 INFO L132 pAbStrategyModuleMcr]: Constructing automaton for MCR equivalence class. [2019-12-27 19:12:15,854 INFO L197 pAbStrategyModuleMcr]: Started intersection. [2019-12-27 19:12:15,855 INFO L208 pAbStrategyModuleMcr]: Finished intersection with 4 states and 3 transitions. [2019-12-27 19:12:15,855 INFO L219 pAbStrategyModuleMcr]: Constructing interpolant automaton by labelling MCR automaton. [2019-12-27 19:12:15,855 INFO L288 pAbStrategyModuleMcr]: Construction finished. Needed to calculate wp 0 times. [2019-12-27 19:12:15,855 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-12-27 19:12:15,856 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-27 19:12:15,856 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-12-27 19:12:15,856 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-27 19:12:15,856 INFO L87 Difference]: Start difference. First operand 755 states. Second operand 3 states. [2019-12-27 19:12:15,934 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-27 19:12:15,935 INFO L93 Difference]: Finished difference Result 893 states and 2840 transitions. [2019-12-27 19:12:15,935 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-27 19:12:15,935 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 3 [2019-12-27 19:12:15,936 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-27 19:12:15,952 INFO L225 Difference]: With dead ends: 893 [2019-12-27 19:12:15,952 INFO L226 Difference]: Without dead ends: 825 [2019-12-27 19:12:15,952 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-27 19:12:15,971 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 825 states. [2019-12-27 19:12:16,035 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 825 to 728. [2019-12-27 19:12:16,035 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 728 states. [2019-12-27 19:12:16,041 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 728 states to 728 states and 2380 transitions. [2019-12-27 19:12:16,041 INFO L78 Accepts]: Start accepts. Automaton has 728 states and 2380 transitions. Word has length 3 [2019-12-27 19:12:16,042 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-27 19:12:16,042 INFO L462 AbstractCegarLoop]: Abstraction has 728 states and 2380 transitions. [2019-12-27 19:12:16,042 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-12-27 19:12:16,042 INFO L276 IsEmpty]: Start isEmpty. Operand 728 states and 2380 transitions. [2019-12-27 19:12:16,043 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2019-12-27 19:12:16,043 INFO L403 BasicCegarLoop]: Found error trace [2019-12-27 19:12:16,043 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-27 19:12:16,043 INFO L410 AbstractCegarLoop]: === Iteration 2 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-27 19:12:16,044 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-27 19:12:16,044 INFO L82 PathProgramCache]: Analyzing trace with hash -1277587267, now seen corresponding path program 1 times [2019-12-27 19:12:16,044 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-27 19:12:16,044 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1381772693] [2019-12-27 19:12:16,045 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-27 19:12:16,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-27 19:12:16,107 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 19:12:16,107 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1381772693] [2019-12-27 19:12:16,108 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-27 19:12:16,108 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-12-27 19:12:16,108 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [188626921] [2019-12-27 19:12:16,108 INFO L132 pAbStrategyModuleMcr]: Constructing automaton for MCR equivalence class. [2019-12-27 19:12:16,109 INFO L197 pAbStrategyModuleMcr]: Started intersection. [2019-12-27 19:12:16,110 INFO L208 pAbStrategyModuleMcr]: Finished intersection with 11 states and 10 transitions. [2019-12-27 19:12:16,110 INFO L219 pAbStrategyModuleMcr]: Constructing interpolant automaton by labelling MCR automaton. [2019-12-27 19:12:16,111 INFO L288 pAbStrategyModuleMcr]: Construction finished. Needed to calculate wp 0 times. [2019-12-27 19:12:16,111 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-12-27 19:12:16,111 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-27 19:12:16,111 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-12-27 19:12:16,111 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2019-12-27 19:12:16,111 INFO L87 Difference]: Start difference. First operand 728 states and 2380 transitions. Second operand 5 states. [2019-12-27 19:12:16,291 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-27 19:12:16,292 INFO L93 Difference]: Finished difference Result 1107 states and 3359 transitions. [2019-12-27 19:12:16,292 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-12-27 19:12:16,292 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 10 [2019-12-27 19:12:16,293 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-27 19:12:16,305 INFO L225 Difference]: With dead ends: 1107 [2019-12-27 19:12:16,306 INFO L226 Difference]: Without dead ends: 1092 [2019-12-27 19:12:16,306 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2019-12-27 19:12:16,320 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1092 states. [2019-12-27 19:12:16,355 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1092 to 655. [2019-12-27 19:12:16,356 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 655 states. [2019-12-27 19:12:16,359 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 655 states to 655 states and 2145 transitions. [2019-12-27 19:12:16,360 INFO L78 Accepts]: Start accepts. Automaton has 655 states and 2145 transitions. Word has length 10 [2019-12-27 19:12:16,361 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-27 19:12:16,361 INFO L462 AbstractCegarLoop]: Abstraction has 655 states and 2145 transitions. [2019-12-27 19:12:16,361 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-12-27 19:12:16,361 INFO L276 IsEmpty]: Start isEmpty. Operand 655 states and 2145 transitions. [2019-12-27 19:12:16,363 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2019-12-27 19:12:16,363 INFO L403 BasicCegarLoop]: Found error trace [2019-12-27 19:12:16,363 INFO L411 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-27 19:12:16,363 INFO L410 AbstractCegarLoop]: === Iteration 3 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-27 19:12:16,364 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-27 19:12:16,364 INFO L82 PathProgramCache]: Analyzing trace with hash 230062385, now seen corresponding path program 1 times [2019-12-27 19:12:16,364 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-27 19:12:16,364 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1402022535] [2019-12-27 19:12:16,365 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-27 19:12:16,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-27 19:12:16,422 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 19:12:16,422 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1402022535] [2019-12-27 19:12:16,423 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-27 19:12:16,423 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-12-27 19:12:16,423 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [859537150] [2019-12-27 19:12:16,423 INFO L132 pAbStrategyModuleMcr]: Constructing automaton for MCR equivalence class. [2019-12-27 19:12:16,425 INFO L197 pAbStrategyModuleMcr]: Started intersection. [2019-12-27 19:12:16,427 INFO L208 pAbStrategyModuleMcr]: Finished intersection with 15 states and 14 transitions. [2019-12-27 19:12:16,428 INFO L219 pAbStrategyModuleMcr]: Constructing interpolant automaton by labelling MCR automaton. [2019-12-27 19:12:16,428 INFO L288 pAbStrategyModuleMcr]: Construction finished. Needed to calculate wp 0 times. [2019-12-27 19:12:16,428 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-12-27 19:12:16,428 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-27 19:12:16,429 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-12-27 19:12:16,429 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2019-12-27 19:12:16,429 INFO L87 Difference]: Start difference. First operand 655 states and 2145 transitions. Second operand 5 states. [2019-12-27 19:12:16,528 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-27 19:12:16,528 INFO L93 Difference]: Finished difference Result 1068 states and 3229 transitions. [2019-12-27 19:12:16,529 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-12-27 19:12:16,529 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 14 [2019-12-27 19:12:16,529 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-27 19:12:16,537 INFO L225 Difference]: With dead ends: 1068 [2019-12-27 19:12:16,537 INFO L226 Difference]: Without dead ends: 1046 [2019-12-27 19:12:16,537 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2019-12-27 19:12:16,541 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1046 states. [2019-12-27 19:12:16,561 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1046 to 630. [2019-12-27 19:12:16,561 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 630 states. [2019-12-27 19:12:16,565 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 630 states to 630 states and 2011 transitions. [2019-12-27 19:12:16,565 INFO L78 Accepts]: Start accepts. Automaton has 630 states and 2011 transitions. Word has length 14 [2019-12-27 19:12:16,565 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-27 19:12:16,566 INFO L462 AbstractCegarLoop]: Abstraction has 630 states and 2011 transitions. [2019-12-27 19:12:16,566 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-12-27 19:12:16,566 INFO L276 IsEmpty]: Start isEmpty. Operand 630 states and 2011 transitions. [2019-12-27 19:12:16,567 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2019-12-27 19:12:16,568 INFO L403 BasicCegarLoop]: Found error trace [2019-12-27 19:12:16,568 INFO L411 BasicCegarLoop]: trace histogram [3, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2019-12-27 19:12:16,568 INFO L410 AbstractCegarLoop]: === Iteration 4 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-27 19:12:16,568 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-27 19:12:16,568 INFO L82 PathProgramCache]: Analyzing trace with hash 226307167, now seen corresponding path program 1 times [2019-12-27 19:12:16,569 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-27 19:12:16,569 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1090968669] [2019-12-27 19:12:16,569 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-27 19:12:16,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-27 19:12:16,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-27 19:12:16,605 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-27 19:12:16,605 INFO L476 BasicCegarLoop]: Counterexample might be feasible [2019-12-27 19:12:16,606 WARN L364 ceAbstractionStarter]: 2 thread instances were not sufficient, I will increase this number and restart the analysis [2019-12-27 19:12:16,606 INFO L340 ceAbstractionStarter]: Constructing petrified ICFG for 3 thread instances. [2019-12-27 19:12:16,617 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread1of3ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 19:12:16,617 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread1of3ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 19:12:16,617 WARN L315 ript$VariableManager]: TermVariabe thr2Thread1of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 19:12:16,617 WARN L315 ript$VariableManager]: TermVariabe thr2Thread1of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 19:12:16,618 WARN L315 ript$VariableManager]: TermVariabe thr2Thread1of3ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 19:12:16,618 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread1of3ForFork0_#t~nondet2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 19:12:16,618 WARN L315 ript$VariableManager]: TermVariabe thr2Thread1of3ForFork0_~k~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 19:12:16,618 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread1of3ForFork0_#t~nondet2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 19:12:16,618 WARN L315 ript$VariableManager]: TermVariabe thr2Thread1of3ForFork0_~k~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 19:12:16,618 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread1of3ForFork0_#t~nondet3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 19:12:16,619 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread1of3ForFork0_#t~nondet3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 19:12:16,619 WARN L315 ript$VariableManager]: TermVariabe thr2Thread1of3ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 19:12:16,619 WARN L315 ript$VariableManager]: TermVariabe thr2Thread1of3ForFork0_~k~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 19:12:16,619 WARN L315 ript$VariableManager]: TermVariabe thr2Thread1of3ForFork0_~k~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 19:12:16,619 WARN L315 ript$VariableManager]: TermVariabe thr2Thread1of3ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 19:12:16,620 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread2of3ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 19:12:16,620 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread2of3ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 19:12:16,620 WARN L315 ript$VariableManager]: TermVariabe thr2Thread2of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 19:12:16,620 WARN L315 ript$VariableManager]: TermVariabe thr2Thread2of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 19:12:16,620 WARN L315 ript$VariableManager]: TermVariabe thr2Thread2of3ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 19:12:16,620 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread2of3ForFork0_#t~nondet2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 19:12:16,620 WARN L315 ript$VariableManager]: TermVariabe thr2Thread2of3ForFork0_~k~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 19:12:16,621 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread2of3ForFork0_#t~nondet2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 19:12:16,621 WARN L315 ript$VariableManager]: TermVariabe thr2Thread2of3ForFork0_~k~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 19:12:16,621 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread2of3ForFork0_#t~nondet3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 19:12:16,621 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread2of3ForFork0_#t~nondet3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 19:12:16,621 WARN L315 ript$VariableManager]: TermVariabe thr2Thread2of3ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 19:12:16,621 WARN L315 ript$VariableManager]: TermVariabe thr2Thread2of3ForFork0_~k~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 19:12:16,622 WARN L315 ript$VariableManager]: TermVariabe thr2Thread2of3ForFork0_~k~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 19:12:16,622 WARN L315 ript$VariableManager]: TermVariabe thr2Thread2of3ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 19:12:16,622 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread3of3ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 19:12:16,622 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread3of3ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 19:12:16,622 WARN L315 ript$VariableManager]: TermVariabe thr2Thread3of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 19:12:16,622 WARN L315 ript$VariableManager]: TermVariabe thr2Thread3of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 19:12:16,623 WARN L315 ript$VariableManager]: TermVariabe thr2Thread3of3ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 19:12:16,623 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread3of3ForFork0_#t~nondet2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 19:12:16,623 WARN L315 ript$VariableManager]: TermVariabe thr2Thread3of3ForFork0_~k~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 19:12:16,623 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread3of3ForFork0_#t~nondet2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 19:12:16,623 WARN L315 ript$VariableManager]: TermVariabe thr2Thread3of3ForFork0_~k~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 19:12:16,623 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread3of3ForFork0_#t~nondet3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 19:12:16,624 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread3of3ForFork0_#t~nondet3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 19:12:16,624 WARN L315 ript$VariableManager]: TermVariabe thr2Thread3of3ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 19:12:16,624 WARN L315 ript$VariableManager]: TermVariabe thr2Thread3of3ForFork0_~k~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 19:12:16,624 WARN L315 ript$VariableManager]: TermVariabe thr2Thread3of3ForFork0_~k~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 19:12:16,624 WARN L315 ript$VariableManager]: TermVariabe thr2Thread3of3ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 19:12:16,625 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 19:12:16,625 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 19:12:16,625 WARN L315 ript$VariableManager]: TermVariabe thr1Thread3of3ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 19:12:16,625 WARN L315 ript$VariableManager]: TermVariabe thr1Thread3of3ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 19:12:16,625 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 19:12:16,625 WARN L315 ript$VariableManager]: TermVariabe thr1Thread3of3ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 19:12:16,626 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 19:12:16,626 WARN L315 ript$VariableManager]: TermVariabe thr1Thread3of3ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 19:12:16,626 WARN L315 ript$VariableManager]: TermVariabe thr1Thread3of3ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 19:12:16,626 WARN L315 ript$VariableManager]: TermVariabe thr1Thread3of3ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 19:12:16,626 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 19:12:16,626 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 19:12:16,627 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of3ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 19:12:16,627 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of3ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 19:12:16,627 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 19:12:16,627 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of3ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 19:12:16,627 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 19:12:16,627 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of3ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 19:12:16,627 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of3ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 19:12:16,628 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of3ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 19:12:16,628 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 19:12:16,628 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 19:12:16,628 WARN L315 ript$VariableManager]: TermVariabe thr1Thread2of3ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 19:12:16,628 WARN L315 ript$VariableManager]: TermVariabe thr1Thread2of3ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 19:12:16,628 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 19:12:16,629 WARN L315 ript$VariableManager]: TermVariabe thr1Thread2of3ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 19:12:16,629 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 19:12:16,629 WARN L315 ript$VariableManager]: TermVariabe thr1Thread2of3ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 19:12:16,629 WARN L315 ript$VariableManager]: TermVariabe thr1Thread2of3ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 19:12:16,629 WARN L315 ript$VariableManager]: TermVariabe thr1Thread2of3ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 19:12:16,630 WARN L315 ript$VariableManager]: TermVariabe thr2Thread1of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 19:12:16,630 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread1of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 19:12:16,630 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread1of3ForFork0_#t~nondet2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 19:12:16,630 WARN L315 ript$VariableManager]: TermVariabe thr2Thread1of3ForFork0_~k~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 19:12:16,630 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread1of3ForFork0_#t~nondet3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 19:12:16,630 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread1of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 19:12:16,631 WARN L315 ript$VariableManager]: TermVariabe thr2Thread1of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 19:12:16,631 WARN L315 ript$VariableManager]: TermVariabe thr2Thread1of3ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 19:12:16,633 WARN L315 ript$VariableManager]: TermVariabe thr2Thread2of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 19:12:16,633 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread2of3ForFork0_#t~nondet3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 19:12:16,633 WARN L315 ript$VariableManager]: TermVariabe thr2Thread2of3ForFork0_~k~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 19:12:16,634 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread2of3ForFork0_#t~nondet2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 19:12:16,634 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread2of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 19:12:16,634 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread2of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 19:12:16,634 WARN L315 ript$VariableManager]: TermVariabe thr2Thread2of3ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 19:12:16,634 WARN L315 ript$VariableManager]: TermVariabe thr2Thread2of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 19:12:16,636 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread3of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 19:12:16,636 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread3of3ForFork0_#t~nondet2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 19:12:16,636 WARN L315 ript$VariableManager]: TermVariabe thr2Thread3of3ForFork0_~k~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 19:12:16,637 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread3of3ForFork0_#t~nondet3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 19:12:16,637 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread3of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 19:12:16,637 WARN L315 ript$VariableManager]: TermVariabe thr2Thread3of3ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 19:12:16,637 WARN L315 ript$VariableManager]: TermVariabe thr2Thread3of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 19:12:16,637 WARN L315 ript$VariableManager]: TermVariabe thr2Thread3of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 19:12:16,639 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 19:12:16,639 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of3ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 19:12:16,639 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 19:12:16,639 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of3ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 19:12:16,640 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 19:12:16,640 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of3ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 19:12:16,641 WARN L315 ript$VariableManager]: TermVariabe thr1Thread2of3ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 19:12:16,641 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 19:12:16,641 WARN L315 ript$VariableManager]: TermVariabe thr1Thread2of3ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 19:12:16,642 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 19:12:16,642 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 19:12:16,642 WARN L315 ript$VariableManager]: TermVariabe thr1Thread2of3ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 19:12:16,643 WARN L315 ript$VariableManager]: TermVariabe thr1Thread3of3ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 19:12:16,643 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 19:12:16,643 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 19:12:16,644 WARN L315 ript$VariableManager]: TermVariabe thr1Thread3of3ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 19:12:16,644 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 19:12:16,644 WARN L315 ript$VariableManager]: TermVariabe thr1Thread3of3ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 19:12:16,645 INFO L249 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2019-12-27 19:12:16,645 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-12-27 19:12:16,646 INFO L374 AbstractCegarLoop]: Hoare is true [2019-12-27 19:12:16,646 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-12-27 19:12:16,646 INFO L376 AbstractCegarLoop]: Backedges is MCR [2019-12-27 19:12:16,646 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-12-27 19:12:16,646 INFO L378 AbstractCegarLoop]: Difference is false [2019-12-27 19:12:16,646 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-12-27 19:12:16,646 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-12-27 19:12:16,649 INFO L152 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 121 places, 114 transitions [2019-12-27 19:12:16,649 INFO L68 FinitePrefix]: Start finitePrefix. Operand has 121 places, 114 transitions [2019-12-27 19:12:16,672 INFO L132 PetriNetUnfolder]: 8/134 cut-off events. [2019-12-27 19:12:16,672 INFO L133 PetriNetUnfolder]: For 7/7 co-relation queries the response was YES. [2019-12-27 19:12:16,675 INFO L76 FinitePrefix]: Finished finitePrefix Result has 155 conditions, 134 events. 8/134 cut-off events. For 7/7 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 275 event pairs. 0/121 useless extension candidates. Maximal degree in co-relation 148. Up to 8 conditions per place. [2019-12-27 19:12:16,682 INFO L68 FinitePrefix]: Start finitePrefix. Operand has 121 places, 114 transitions [2019-12-27 19:12:16,702 INFO L132 PetriNetUnfolder]: 8/134 cut-off events. [2019-12-27 19:12:16,702 INFO L133 PetriNetUnfolder]: For 7/7 co-relation queries the response was YES. [2019-12-27 19:12:16,705 INFO L76 FinitePrefix]: Finished finitePrefix Result has 155 conditions, 134 events. 8/134 cut-off events. For 7/7 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 275 event pairs. 0/121 useless extension candidates. Maximal degree in co-relation 148. Up to 8 conditions per place. [2019-12-27 19:12:16,712 INFO L158 etLargeBlockEncoding]: Number of co-enabled transitions 3420 [2019-12-27 19:12:16,712 INFO L170 etLargeBlockEncoding]: Semantic Check. [2019-12-27 19:12:18,794 WARN L192 SmtUtils]: Spent 230.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 84 [2019-12-27 19:12:18,908 WARN L192 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 80 [2019-12-27 19:12:19,106 WARN L192 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 96 [2019-12-27 19:12:19,218 WARN L192 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 92 [2019-12-27 19:12:19,230 INFO L206 etLargeBlockEncoding]: Checked pairs total: 6734 [2019-12-27 19:12:19,230 INFO L214 etLargeBlockEncoding]: Total number of compositions: 89 [2019-12-27 19:12:19,230 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 44 places, 40 transitions [2019-12-27 19:12:19,538 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 5273 states. [2019-12-27 19:12:19,539 INFO L276 IsEmpty]: Start isEmpty. Operand 5273 states. [2019-12-27 19:12:19,539 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2019-12-27 19:12:19,539 INFO L403 BasicCegarLoop]: Found error trace [2019-12-27 19:12:19,539 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1] [2019-12-27 19:12:19,539 INFO L410 AbstractCegarLoop]: === Iteration 1 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-27 19:12:19,540 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-27 19:12:19,540 INFO L82 PathProgramCache]: Analyzing trace with hash 672286, now seen corresponding path program 1 times [2019-12-27 19:12:19,540 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-27 19:12:19,540 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1652373317] [2019-12-27 19:12:19,540 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-27 19:12:19,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-27 19:12:19,563 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 19:12:19,564 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1652373317] [2019-12-27 19:12:19,564 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-27 19:12:19,564 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2019-12-27 19:12:19,564 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [771774087] [2019-12-27 19:12:19,564 INFO L132 pAbStrategyModuleMcr]: Constructing automaton for MCR equivalence class. [2019-12-27 19:12:19,565 INFO L197 pAbStrategyModuleMcr]: Started intersection. [2019-12-27 19:12:19,565 INFO L208 pAbStrategyModuleMcr]: Finished intersection with 4 states and 3 transitions. [2019-12-27 19:12:19,565 INFO L219 pAbStrategyModuleMcr]: Constructing interpolant automaton by labelling MCR automaton. [2019-12-27 19:12:19,566 INFO L288 pAbStrategyModuleMcr]: Construction finished. Needed to calculate wp 0 times. [2019-12-27 19:12:19,566 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-12-27 19:12:19,566 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-27 19:12:19,566 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-12-27 19:12:19,566 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-27 19:12:19,567 INFO L87 Difference]: Start difference. First operand 5273 states. Second operand 3 states. [2019-12-27 19:12:19,696 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-27 19:12:19,696 INFO L93 Difference]: Finished difference Result 7407 states and 31211 transitions. [2019-12-27 19:12:19,697 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-27 19:12:19,697 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 3 [2019-12-27 19:12:19,697 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-27 19:12:19,770 INFO L225 Difference]: With dead ends: 7407 [2019-12-27 19:12:19,770 INFO L226 Difference]: Without dead ends: 6859 [2019-12-27 19:12:19,771 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-27 19:12:19,897 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6859 states. [2019-12-27 19:12:20,072 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6859 to 5755. [2019-12-27 19:12:20,072 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5755 states. [2019-12-27 19:12:20,110 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5755 states to 5755 states and 24922 transitions. [2019-12-27 19:12:20,111 INFO L78 Accepts]: Start accepts. Automaton has 5755 states and 24922 transitions. Word has length 3 [2019-12-27 19:12:20,111 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-27 19:12:20,111 INFO L462 AbstractCegarLoop]: Abstraction has 5755 states and 24922 transitions. [2019-12-27 19:12:20,111 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-12-27 19:12:20,111 INFO L276 IsEmpty]: Start isEmpty. Operand 5755 states and 24922 transitions. [2019-12-27 19:12:20,112 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2019-12-27 19:12:20,112 INFO L403 BasicCegarLoop]: Found error trace [2019-12-27 19:12:20,113 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-27 19:12:20,113 INFO L410 AbstractCegarLoop]: === Iteration 2 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-27 19:12:20,113 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-27 19:12:20,113 INFO L82 PathProgramCache]: Analyzing trace with hash -2052268641, now seen corresponding path program 1 times [2019-12-27 19:12:20,114 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-27 19:12:20,114 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1014232217] [2019-12-27 19:12:20,114 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-27 19:12:20,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-27 19:12:20,189 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 19:12:20,189 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1014232217] [2019-12-27 19:12:20,190 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-27 19:12:20,190 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-12-27 19:12:20,190 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1004119295] [2019-12-27 19:12:20,190 INFO L132 pAbStrategyModuleMcr]: Constructing automaton for MCR equivalence class. [2019-12-27 19:12:20,191 INFO L197 pAbStrategyModuleMcr]: Started intersection. [2019-12-27 19:12:20,192 INFO L208 pAbStrategyModuleMcr]: Finished intersection with 11 states and 10 transitions. [2019-12-27 19:12:20,192 INFO L219 pAbStrategyModuleMcr]: Constructing interpolant automaton by labelling MCR automaton. [2019-12-27 19:12:20,193 INFO L288 pAbStrategyModuleMcr]: Construction finished. Needed to calculate wp 0 times. [2019-12-27 19:12:20,193 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-12-27 19:12:20,193 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-27 19:12:20,193 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-12-27 19:12:20,194 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2019-12-27 19:12:20,194 INFO L87 Difference]: Start difference. First operand 5755 states and 24922 transitions. Second operand 5 states. [2019-12-27 19:12:20,404 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-27 19:12:20,404 INFO L93 Difference]: Finished difference Result 10309 states and 41465 transitions. [2019-12-27 19:12:20,404 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-12-27 19:12:20,405 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 10 [2019-12-27 19:12:20,405 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-27 19:12:20,469 INFO L225 Difference]: With dead ends: 10309 [2019-12-27 19:12:20,469 INFO L226 Difference]: Without dead ends: 10246 [2019-12-27 19:12:20,470 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2019-12-27 19:12:20,518 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10246 states. [2019-12-27 19:12:20,822 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10246 to 5479. [2019-12-27 19:12:20,822 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5479 states. [2019-12-27 19:12:20,861 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5479 states to 5479 states and 23676 transitions. [2019-12-27 19:12:20,861 INFO L78 Accepts]: Start accepts. Automaton has 5479 states and 23676 transitions. Word has length 10 [2019-12-27 19:12:20,861 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-27 19:12:20,861 INFO L462 AbstractCegarLoop]: Abstraction has 5479 states and 23676 transitions. [2019-12-27 19:12:20,861 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-12-27 19:12:20,862 INFO L276 IsEmpty]: Start isEmpty. Operand 5479 states and 23676 transitions. [2019-12-27 19:12:20,863 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2019-12-27 19:12:20,863 INFO L403 BasicCegarLoop]: Found error trace [2019-12-27 19:12:20,863 INFO L411 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-27 19:12:20,863 INFO L410 AbstractCegarLoop]: === Iteration 3 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-27 19:12:20,864 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-27 19:12:20,864 INFO L82 PathProgramCache]: Analyzing trace with hash 1690988075, now seen corresponding path program 1 times [2019-12-27 19:12:20,864 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-27 19:12:20,864 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1405125558] [2019-12-27 19:12:20,865 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-27 19:12:20,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-27 19:12:20,918 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 19:12:20,918 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1405125558] [2019-12-27 19:12:20,919 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-27 19:12:20,919 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-12-27 19:12:20,919 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1629739588] [2019-12-27 19:12:20,919 INFO L132 pAbStrategyModuleMcr]: Constructing automaton for MCR equivalence class. [2019-12-27 19:12:20,921 INFO L197 pAbStrategyModuleMcr]: Started intersection. [2019-12-27 19:12:20,923 INFO L208 pAbStrategyModuleMcr]: Finished intersection with 15 states and 14 transitions. [2019-12-27 19:12:20,923 INFO L219 pAbStrategyModuleMcr]: Constructing interpolant automaton by labelling MCR automaton. [2019-12-27 19:12:20,923 INFO L288 pAbStrategyModuleMcr]: Construction finished. Needed to calculate wp 0 times. [2019-12-27 19:12:20,924 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-12-27 19:12:20,924 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-27 19:12:20,924 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-12-27 19:12:20,924 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2019-12-27 19:12:20,924 INFO L87 Difference]: Start difference. First operand 5479 states and 23676 transitions. Second operand 5 states. [2019-12-27 19:12:21,137 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-27 19:12:21,138 INFO L93 Difference]: Finished difference Result 11134 states and 45075 transitions. [2019-12-27 19:12:21,138 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-12-27 19:12:21,138 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 14 [2019-12-27 19:12:21,138 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-27 19:12:21,191 INFO L225 Difference]: With dead ends: 11134 [2019-12-27 19:12:21,191 INFO L226 Difference]: Without dead ends: 11059 [2019-12-27 19:12:21,191 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2019-12-27 19:12:21,237 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11059 states. [2019-12-27 19:12:21,454 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11059 to 5882. [2019-12-27 19:12:21,455 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5882 states. [2019-12-27 19:12:21,494 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5882 states to 5882 states and 25395 transitions. [2019-12-27 19:12:21,494 INFO L78 Accepts]: Start accepts. Automaton has 5882 states and 25395 transitions. Word has length 14 [2019-12-27 19:12:21,494 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-27 19:12:21,495 INFO L462 AbstractCegarLoop]: Abstraction has 5882 states and 25395 transitions. [2019-12-27 19:12:21,495 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-12-27 19:12:21,495 INFO L276 IsEmpty]: Start isEmpty. Operand 5882 states and 25395 transitions. [2019-12-27 19:12:21,497 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2019-12-27 19:12:21,497 INFO L403 BasicCegarLoop]: Found error trace [2019-12-27 19:12:21,497 INFO L411 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-27 19:12:21,497 INFO L410 AbstractCegarLoop]: === Iteration 4 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-27 19:12:21,498 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-27 19:12:21,498 INFO L82 PathProgramCache]: Analyzing trace with hash -645314245, now seen corresponding path program 1 times [2019-12-27 19:12:21,498 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-27 19:12:21,498 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [451884406] [2019-12-27 19:12:21,499 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-27 19:12:21,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-27 19:12:21,642 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 19:12:21,642 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [451884406] [2019-12-27 19:12:21,643 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-27 19:12:21,643 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-12-27 19:12:21,643 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1905766670] [2019-12-27 19:12:21,643 INFO L132 pAbStrategyModuleMcr]: Constructing automaton for MCR equivalence class. [2019-12-27 19:12:21,646 INFO L197 pAbStrategyModuleMcr]: Started intersection. [2019-12-27 19:12:21,653 INFO L208 pAbStrategyModuleMcr]: Finished intersection with 32 states and 45 transitions. [2019-12-27 19:12:21,653 INFO L219 pAbStrategyModuleMcr]: Constructing interpolant automaton by labelling MCR automaton. [2019-12-27 19:12:21,663 INFO L288 pAbStrategyModuleMcr]: Construction finished. Needed to calculate wp 3 times. [2019-12-27 19:12:21,663 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-12-27 19:12:21,663 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-27 19:12:21,664 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-12-27 19:12:21,664 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-12-27 19:12:21,664 INFO L87 Difference]: Start difference. First operand 5882 states and 25395 transitions. Second operand 4 states. [2019-12-27 19:12:21,766 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-27 19:12:21,766 INFO L93 Difference]: Finished difference Result 4116 states and 14068 transitions. [2019-12-27 19:12:21,766 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-12-27 19:12:21,766 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 17 [2019-12-27 19:12:21,767 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-27 19:12:21,781 INFO L225 Difference]: With dead ends: 4116 [2019-12-27 19:12:21,781 INFO L226 Difference]: Without dead ends: 4116 [2019-12-27 19:12:21,782 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2019-12-27 19:12:21,799 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4116 states. [2019-12-27 19:12:21,866 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4116 to 2959. [2019-12-27 19:12:21,867 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2959 states. [2019-12-27 19:12:21,878 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2959 states to 2959 states and 10243 transitions. [2019-12-27 19:12:21,878 INFO L78 Accepts]: Start accepts. Automaton has 2959 states and 10243 transitions. Word has length 17 [2019-12-27 19:12:21,878 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-27 19:12:21,879 INFO L462 AbstractCegarLoop]: Abstraction has 2959 states and 10243 transitions. [2019-12-27 19:12:21,879 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-12-27 19:12:21,879 INFO L276 IsEmpty]: Start isEmpty. Operand 2959 states and 10243 transitions. [2019-12-27 19:12:21,880 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2019-12-27 19:12:21,880 INFO L403 BasicCegarLoop]: Found error trace [2019-12-27 19:12:21,880 INFO L411 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-27 19:12:21,881 INFO L410 AbstractCegarLoop]: === Iteration 5 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-27 19:12:21,881 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-27 19:12:21,881 INFO L82 PathProgramCache]: Analyzing trace with hash 1331292250, now seen corresponding path program 1 times [2019-12-27 19:12:21,881 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-27 19:12:21,882 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1295268888] [2019-12-27 19:12:21,882 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-27 19:12:21,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-27 19:12:21,966 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 19:12:21,966 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1295268888] [2019-12-27 19:12:21,967 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1940096403] [2019-12-27 19:12:21,967 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 19:12:22,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-27 19:12:22,053 INFO L264 TraceCheckSpWp]: Trace formula consists of 127 conjuncts, 7 conjunts are in the unsatisfiable core [2019-12-27 19:12:22,056 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-27 19:12:22,137 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 19:12:22,138 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-12-27 19:12:22,138 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 10 [2019-12-27 19:12:22,138 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1881902270] [2019-12-27 19:12:22,139 INFO L132 pAbStrategyModuleMcr]: Constructing automaton for MCR equivalence class. [2019-12-27 19:12:22,141 INFO L197 pAbStrategyModuleMcr]: Started intersection. [2019-12-27 19:12:22,148 INFO L208 pAbStrategyModuleMcr]: Finished intersection with 35 states and 50 transitions. [2019-12-27 19:12:22,149 INFO L219 pAbStrategyModuleMcr]: Constructing interpolant automaton by labelling MCR automaton. [2019-12-27 19:12:22,151 INFO L288 pAbStrategyModuleMcr]: Construction finished. Needed to calculate wp 2 times. [2019-12-27 19:12:22,151 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-12-27 19:12:22,151 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-27 19:12:22,151 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-12-27 19:12:22,152 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=95, Unknown=0, NotChecked=0, Total=132 [2019-12-27 19:12:22,152 INFO L87 Difference]: Start difference. First operand 2959 states and 10243 transitions. Second operand 7 states. [2019-12-27 19:12:22,507 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-27 19:12:22,507 INFO L93 Difference]: Finished difference Result 6079 states and 20204 transitions. [2019-12-27 19:12:22,508 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2019-12-27 19:12:22,508 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 18 [2019-12-27 19:12:22,508 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-27 19:12:22,529 INFO L225 Difference]: With dead ends: 6079 [2019-12-27 19:12:22,529 INFO L226 Difference]: Without dead ends: 6043 [2019-12-27 19:12:22,530 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 54 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=110, Invalid=270, Unknown=0, NotChecked=0, Total=380 [2019-12-27 19:12:22,555 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6043 states. [2019-12-27 19:12:22,651 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6043 to 2725. [2019-12-27 19:12:22,652 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2725 states. [2019-12-27 19:12:22,662 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2725 states to 2725 states and 9384 transitions. [2019-12-27 19:12:22,662 INFO L78 Accepts]: Start accepts. Automaton has 2725 states and 9384 transitions. Word has length 18 [2019-12-27 19:12:22,662 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-27 19:12:22,662 INFO L462 AbstractCegarLoop]: Abstraction has 2725 states and 9384 transitions. [2019-12-27 19:12:22,663 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-12-27 19:12:22,663 INFO L276 IsEmpty]: Start isEmpty. Operand 2725 states and 9384 transitions. [2019-12-27 19:12:22,664 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2019-12-27 19:12:22,664 INFO L403 BasicCegarLoop]: Found error trace [2019-12-27 19:12:22,664 INFO L411 BasicCegarLoop]: trace histogram [3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-27 19:12:22,928 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-12-27 19:12:22,929 INFO L410 AbstractCegarLoop]: === Iteration 6 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-27 19:12:22,929 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-27 19:12:22,930 INFO L82 PathProgramCache]: Analyzing trace with hash 1022908716, now seen corresponding path program 1 times [2019-12-27 19:12:22,930 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-27 19:12:22,931 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [307226187] [2019-12-27 19:12:22,931 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-27 19:12:22,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-27 19:12:22,992 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2019-12-27 19:12:22,992 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [307226187] [2019-12-27 19:12:22,993 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-27 19:12:22,993 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-12-27 19:12:22,993 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1175949288] [2019-12-27 19:12:22,993 INFO L132 pAbStrategyModuleMcr]: Constructing automaton for MCR equivalence class. [2019-12-27 19:12:22,995 INFO L197 pAbStrategyModuleMcr]: Started intersection. [2019-12-27 19:12:22,998 INFO L208 pAbStrategyModuleMcr]: Finished intersection with 19 states and 18 transitions. [2019-12-27 19:12:22,999 INFO L219 pAbStrategyModuleMcr]: Constructing interpolant automaton by labelling MCR automaton. [2019-12-27 19:12:22,999 INFO L288 pAbStrategyModuleMcr]: Construction finished. Needed to calculate wp 0 times. [2019-12-27 19:12:22,999 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-12-27 19:12:22,999 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-27 19:12:22,999 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-12-27 19:12:23,000 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2019-12-27 19:12:23,000 INFO L87 Difference]: Start difference. First operand 2725 states and 9384 transitions. Second operand 5 states. [2019-12-27 19:12:23,160 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-27 19:12:23,160 INFO L93 Difference]: Finished difference Result 5203 states and 17665 transitions. [2019-12-27 19:12:23,160 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-12-27 19:12:23,160 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 18 [2019-12-27 19:12:23,161 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-27 19:12:23,179 INFO L225 Difference]: With dead ends: 5203 [2019-12-27 19:12:23,179 INFO L226 Difference]: Without dead ends: 5167 [2019-12-27 19:12:23,180 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2019-12-27 19:12:23,198 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5167 states. [2019-12-27 19:12:23,266 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5167 to 2953. [2019-12-27 19:12:23,266 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2953 states. [2019-12-27 19:12:23,276 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2953 states to 2953 states and 10213 transitions. [2019-12-27 19:12:23,277 INFO L78 Accepts]: Start accepts. Automaton has 2953 states and 10213 transitions. Word has length 18 [2019-12-27 19:12:23,277 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-27 19:12:23,277 INFO L462 AbstractCegarLoop]: Abstraction has 2953 states and 10213 transitions. [2019-12-27 19:12:23,277 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-12-27 19:12:23,277 INFO L276 IsEmpty]: Start isEmpty. Operand 2953 states and 10213 transitions. [2019-12-27 19:12:23,279 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2019-12-27 19:12:23,279 INFO L403 BasicCegarLoop]: Found error trace [2019-12-27 19:12:23,279 INFO L411 BasicCegarLoop]: trace histogram [4, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-27 19:12:23,279 INFO L410 AbstractCegarLoop]: === Iteration 7 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-27 19:12:23,280 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-27 19:12:23,280 INFO L82 PathProgramCache]: Analyzing trace with hash 1017797005, now seen corresponding path program 1 times [2019-12-27 19:12:23,280 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-27 19:12:23,280 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1155339963] [2019-12-27 19:12:23,280 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-27 19:12:23,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-27 19:12:23,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-27 19:12:23,310 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-27 19:12:23,310 INFO L476 BasicCegarLoop]: Counterexample might be feasible [2019-12-27 19:12:23,310 WARN L364 ceAbstractionStarter]: 3 thread instances were not sufficient, I will increase this number and restart the analysis [2019-12-27 19:12:23,310 INFO L340 ceAbstractionStarter]: Constructing petrified ICFG for 4 thread instances. [2019-12-27 19:12:23,323 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread4of4ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 19:12:23,323 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread4of4ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 19:12:23,324 WARN L315 ript$VariableManager]: TermVariabe thr2Thread4of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 19:12:23,324 WARN L315 ript$VariableManager]: TermVariabe thr2Thread4of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 19:12:23,324 WARN L315 ript$VariableManager]: TermVariabe thr2Thread4of4ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 19:12:23,324 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread4of4ForFork0_#t~nondet2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 19:12:23,324 WARN L315 ript$VariableManager]: TermVariabe thr2Thread4of4ForFork0_~k~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 19:12:23,324 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread4of4ForFork0_#t~nondet2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 19:12:23,325 WARN L315 ript$VariableManager]: TermVariabe thr2Thread4of4ForFork0_~k~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 19:12:23,325 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread4of4ForFork0_#t~nondet3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 19:12:23,325 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread4of4ForFork0_#t~nondet3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 19:12:23,325 WARN L315 ript$VariableManager]: TermVariabe thr2Thread4of4ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 19:12:23,325 WARN L315 ript$VariableManager]: TermVariabe thr2Thread4of4ForFork0_~k~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 19:12:23,325 WARN L315 ript$VariableManager]: TermVariabe thr2Thread4of4ForFork0_~k~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 19:12:23,326 WARN L315 ript$VariableManager]: TermVariabe thr2Thread4of4ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 19:12:23,326 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread3of4ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 19:12:23,326 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread3of4ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 19:12:23,326 WARN L315 ript$VariableManager]: TermVariabe thr2Thread3of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 19:12:23,326 WARN L315 ript$VariableManager]: TermVariabe thr2Thread3of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 19:12:23,327 WARN L315 ript$VariableManager]: TermVariabe thr2Thread3of4ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 19:12:23,327 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread3of4ForFork0_#t~nondet2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 19:12:23,327 WARN L315 ript$VariableManager]: TermVariabe thr2Thread3of4ForFork0_~k~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 19:12:23,327 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread3of4ForFork0_#t~nondet2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 19:12:23,327 WARN L315 ript$VariableManager]: TermVariabe thr2Thread3of4ForFork0_~k~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 19:12:23,327 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread3of4ForFork0_#t~nondet3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 19:12:23,327 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread3of4ForFork0_#t~nondet3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 19:12:23,328 WARN L315 ript$VariableManager]: TermVariabe thr2Thread3of4ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 19:12:23,328 WARN L315 ript$VariableManager]: TermVariabe thr2Thread3of4ForFork0_~k~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 19:12:23,328 WARN L315 ript$VariableManager]: TermVariabe thr2Thread3of4ForFork0_~k~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 19:12:23,328 WARN L315 ript$VariableManager]: TermVariabe thr2Thread3of4ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 19:12:23,328 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread2of4ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 19:12:23,329 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread2of4ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 19:12:23,329 WARN L315 ript$VariableManager]: TermVariabe thr2Thread2of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 19:12:23,329 WARN L315 ript$VariableManager]: TermVariabe thr2Thread2of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 19:12:23,329 WARN L315 ript$VariableManager]: TermVariabe thr2Thread2of4ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 19:12:23,329 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread2of4ForFork0_#t~nondet2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 19:12:23,329 WARN L315 ript$VariableManager]: TermVariabe thr2Thread2of4ForFork0_~k~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 19:12:23,329 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread2of4ForFork0_#t~nondet2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 19:12:23,330 WARN L315 ript$VariableManager]: TermVariabe thr2Thread2of4ForFork0_~k~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 19:12:23,330 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread2of4ForFork0_#t~nondet3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 19:12:23,330 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread2of4ForFork0_#t~nondet3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 19:12:23,330 WARN L315 ript$VariableManager]: TermVariabe thr2Thread2of4ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 19:12:23,330 WARN L315 ript$VariableManager]: TermVariabe thr2Thread2of4ForFork0_~k~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 19:12:23,330 WARN L315 ript$VariableManager]: TermVariabe thr2Thread2of4ForFork0_~k~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 19:12:23,331 WARN L315 ript$VariableManager]: TermVariabe thr2Thread2of4ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 19:12:23,331 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread1of4ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 19:12:23,331 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread1of4ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 19:12:23,331 WARN L315 ript$VariableManager]: TermVariabe thr2Thread1of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 19:12:23,331 WARN L315 ript$VariableManager]: TermVariabe thr2Thread1of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 19:12:23,331 WARN L315 ript$VariableManager]: TermVariabe thr2Thread1of4ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 19:12:23,331 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread1of4ForFork0_#t~nondet2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 19:12:23,332 WARN L315 ript$VariableManager]: TermVariabe thr2Thread1of4ForFork0_~k~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 19:12:23,332 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread1of4ForFork0_#t~nondet2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 19:12:23,332 WARN L315 ript$VariableManager]: TermVariabe thr2Thread1of4ForFork0_~k~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 19:12:23,332 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread1of4ForFork0_#t~nondet3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 19:12:23,332 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread1of4ForFork0_#t~nondet3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 19:12:23,332 WARN L315 ript$VariableManager]: TermVariabe thr2Thread1of4ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 19:12:23,333 WARN L315 ript$VariableManager]: TermVariabe thr2Thread1of4ForFork0_~k~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 19:12:23,333 WARN L315 ript$VariableManager]: TermVariabe thr2Thread1of4ForFork0_~k~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 19:12:23,333 WARN L315 ript$VariableManager]: TermVariabe thr2Thread1of4ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 19:12:23,333 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 19:12:23,333 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 19:12:23,334 WARN L315 ript$VariableManager]: TermVariabe thr1Thread3of4ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 19:12:23,334 WARN L315 ript$VariableManager]: TermVariabe thr1Thread3of4ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 19:12:23,334 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 19:12:23,334 WARN L315 ript$VariableManager]: TermVariabe thr1Thread3of4ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 19:12:23,334 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 19:12:23,334 WARN L315 ript$VariableManager]: TermVariabe thr1Thread3of4ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 19:12:23,335 WARN L315 ript$VariableManager]: TermVariabe thr1Thread3of4ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 19:12:23,335 WARN L315 ript$VariableManager]: TermVariabe thr1Thread3of4ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 19:12:23,335 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 19:12:23,335 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 19:12:23,335 WARN L315 ript$VariableManager]: TermVariabe thr1Thread4of4ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 19:12:23,335 WARN L315 ript$VariableManager]: TermVariabe thr1Thread4of4ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 19:12:23,335 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 19:12:23,336 WARN L315 ript$VariableManager]: TermVariabe thr1Thread4of4ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 19:12:23,336 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 19:12:23,336 WARN L315 ript$VariableManager]: TermVariabe thr1Thread4of4ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 19:12:23,336 WARN L315 ript$VariableManager]: TermVariabe thr1Thread4of4ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 19:12:23,336 WARN L315 ript$VariableManager]: TermVariabe thr1Thread4of4ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 19:12:23,336 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 19:12:23,337 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 19:12:23,337 WARN L315 ript$VariableManager]: TermVariabe thr1Thread2of4ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 19:12:23,337 WARN L315 ript$VariableManager]: TermVariabe thr1Thread2of4ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 19:12:23,337 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 19:12:23,337 WARN L315 ript$VariableManager]: TermVariabe thr1Thread2of4ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 19:12:23,337 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 19:12:23,337 WARN L315 ript$VariableManager]: TermVariabe thr1Thread2of4ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 19:12:23,338 WARN L315 ript$VariableManager]: TermVariabe thr1Thread2of4ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 19:12:23,338 WARN L315 ript$VariableManager]: TermVariabe thr1Thread2of4ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 19:12:23,338 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 19:12:23,338 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 19:12:23,338 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of4ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 19:12:23,338 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of4ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 19:12:23,339 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 19:12:23,339 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of4ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 19:12:23,339 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 19:12:23,339 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of4ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 19:12:23,339 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of4ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 19:12:23,339 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of4ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 19:12:23,340 WARN L315 ript$VariableManager]: TermVariabe thr2Thread1of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 19:12:23,340 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread1of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 19:12:23,340 WARN L315 ript$VariableManager]: TermVariabe thr2Thread1of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 19:12:23,340 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread1of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 19:12:23,340 WARN L315 ript$VariableManager]: TermVariabe thr2Thread1of4ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 19:12:23,341 WARN L315 ript$VariableManager]: TermVariabe thr2Thread1of4ForFork0_~k~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 19:12:23,341 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread1of4ForFork0_#t~nondet2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 19:12:23,341 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread1of4ForFork0_#t~nondet3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 19:12:23,342 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread2of4ForFork0_#t~nondet2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 19:12:23,342 WARN L315 ript$VariableManager]: TermVariabe thr2Thread2of4ForFork0_~k~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 19:12:23,342 WARN L315 ript$VariableManager]: TermVariabe thr2Thread2of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 19:12:23,343 WARN L315 ript$VariableManager]: TermVariabe thr2Thread2of4ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 19:12:23,343 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread2of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 19:12:23,343 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread2of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 19:12:23,343 WARN L315 ript$VariableManager]: TermVariabe thr2Thread2of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 19:12:23,343 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread2of4ForFork0_#t~nondet3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 19:12:23,345 WARN L315 ript$VariableManager]: TermVariabe thr2Thread3of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 19:12:23,345 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread3of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 19:12:23,345 WARN L315 ript$VariableManager]: TermVariabe thr2Thread3of4ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 19:12:23,345 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread3of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 19:12:23,346 WARN L315 ript$VariableManager]: TermVariabe thr2Thread3of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 19:12:23,346 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread3of4ForFork0_#t~nondet3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 19:12:23,346 WARN L315 ript$VariableManager]: TermVariabe thr2Thread3of4ForFork0_~k~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 19:12:23,346 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread3of4ForFork0_#t~nondet2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 19:12:23,348 WARN L315 ript$VariableManager]: TermVariabe thr2Thread4of4ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 19:12:23,348 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread4of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 19:12:23,348 WARN L315 ript$VariableManager]: TermVariabe thr2Thread4of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 19:12:23,348 WARN L315 ript$VariableManager]: TermVariabe thr2Thread4of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 19:12:23,349 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread4of4ForFork0_#t~nondet3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 19:12:23,349 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread4of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 19:12:23,349 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread4of4ForFork0_#t~nondet2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 19:12:23,349 WARN L315 ript$VariableManager]: TermVariabe thr2Thread4of4ForFork0_~k~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 19:12:23,351 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of4ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 19:12:23,351 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of4ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 19:12:23,351 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 19:12:23,351 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 19:12:23,352 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 19:12:23,352 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of4ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 19:12:23,353 WARN L315 ript$VariableManager]: TermVariabe thr1Thread2of4ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 19:12:23,353 WARN L315 ript$VariableManager]: TermVariabe thr1Thread2of4ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 19:12:23,353 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 19:12:23,353 WARN L315 ript$VariableManager]: TermVariabe thr1Thread2of4ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 19:12:23,353 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 19:12:23,354 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 19:12:23,355 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 19:12:23,355 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 19:12:23,355 WARN L315 ript$VariableManager]: TermVariabe thr1Thread3of4ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 19:12:23,355 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 19:12:23,355 WARN L315 ript$VariableManager]: TermVariabe thr1Thread3of4ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 19:12:23,355 WARN L315 ript$VariableManager]: TermVariabe thr1Thread3of4ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 19:12:23,357 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 19:12:23,357 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 19:12:23,357 WARN L315 ript$VariableManager]: TermVariabe thr1Thread4of4ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 19:12:23,357 WARN L315 ript$VariableManager]: TermVariabe thr1Thread4of4ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 19:12:23,358 WARN L315 ript$VariableManager]: TermVariabe thr1Thread4of4ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 19:12:23,358 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 19:12:23,359 INFO L249 AbstractCegarLoop]: Starting to check reachability of 7 error locations. [2019-12-27 19:12:23,359 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-12-27 19:12:23,359 INFO L374 AbstractCegarLoop]: Hoare is true [2019-12-27 19:12:23,359 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-12-27 19:12:23,359 INFO L376 AbstractCegarLoop]: Backedges is MCR [2019-12-27 19:12:23,360 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-12-27 19:12:23,360 INFO L378 AbstractCegarLoop]: Difference is false [2019-12-27 19:12:23,360 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-12-27 19:12:23,360 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-12-27 19:12:23,361 INFO L152 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 147 places, 138 transitions [2019-12-27 19:12:23,362 INFO L68 FinitePrefix]: Start finitePrefix. Operand has 147 places, 138 transitions [2019-12-27 19:12:23,388 INFO L132 PetriNetUnfolder]: 10/163 cut-off events. [2019-12-27 19:12:23,388 INFO L133 PetriNetUnfolder]: For 16/16 co-relation queries the response was YES. [2019-12-27 19:12:23,393 INFO L76 FinitePrefix]: Finished finitePrefix Result has 192 conditions, 163 events. 10/163 cut-off events. For 16/16 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 344 event pairs. 0/147 useless extension candidates. Maximal degree in co-relation 183. Up to 10 conditions per place. [2019-12-27 19:12:23,402 INFO L68 FinitePrefix]: Start finitePrefix. Operand has 147 places, 138 transitions [2019-12-27 19:12:23,429 INFO L132 PetriNetUnfolder]: 10/163 cut-off events. [2019-12-27 19:12:23,429 INFO L133 PetriNetUnfolder]: For 16/16 co-relation queries the response was YES. [2019-12-27 19:12:23,433 INFO L76 FinitePrefix]: Finished finitePrefix Result has 192 conditions, 163 events. 10/163 cut-off events. For 16/16 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 344 event pairs. 0/147 useless extension candidates. Maximal degree in co-relation 183. Up to 10 conditions per place. [2019-12-27 19:12:23,443 INFO L158 etLargeBlockEncoding]: Number of co-enabled transitions 5180 [2019-12-27 19:12:23,444 INFO L170 etLargeBlockEncoding]: Semantic Check. [2019-12-27 19:12:26,483 WARN L192 SmtUtils]: Spent 286.00 ms on a formula simplification. DAG size of input: 104 DAG size of output: 100 [2019-12-27 19:12:26,627 WARN L192 SmtUtils]: Spent 139.00 ms on a formula simplification that was a NOOP. DAG size: 92 [2019-12-27 19:12:26,646 INFO L206 etLargeBlockEncoding]: Checked pairs total: 10723 [2019-12-27 19:12:26,646 INFO L214 etLargeBlockEncoding]: Total number of compositions: 110 [2019-12-27 19:12:26,646 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 54 places, 49 transitions [2019-12-27 19:12:29,305 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 27215 states. [2019-12-27 19:12:29,305 INFO L276 IsEmpty]: Start isEmpty. Operand 27215 states. [2019-12-27 19:12:29,305 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2019-12-27 19:12:29,305 INFO L403 BasicCegarLoop]: Found error trace [2019-12-27 19:12:29,305 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1] [2019-12-27 19:12:29,306 INFO L410 AbstractCegarLoop]: === Iteration 1 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION]=== [2019-12-27 19:12:29,306 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-27 19:12:29,306 INFO L82 PathProgramCache]: Analyzing trace with hash 946624, now seen corresponding path program 1 times [2019-12-27 19:12:29,306 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-27 19:12:29,306 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1764242175] [2019-12-27 19:12:29,307 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-27 19:12:29,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-27 19:12:29,348 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 19:12:29,349 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1764242175] [2019-12-27 19:12:29,349 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-27 19:12:29,349 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2019-12-27 19:12:29,349 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [631820034] [2019-12-27 19:12:29,349 INFO L132 pAbStrategyModuleMcr]: Constructing automaton for MCR equivalence class. [2019-12-27 19:12:29,350 INFO L197 pAbStrategyModuleMcr]: Started intersection. [2019-12-27 19:12:29,350 INFO L208 pAbStrategyModuleMcr]: Finished intersection with 4 states and 3 transitions. [2019-12-27 19:12:29,350 INFO L219 pAbStrategyModuleMcr]: Constructing interpolant automaton by labelling MCR automaton. [2019-12-27 19:12:29,351 INFO L288 pAbStrategyModuleMcr]: Construction finished. Needed to calculate wp 0 times. [2019-12-27 19:12:29,351 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-12-27 19:12:29,351 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-27 19:12:29,351 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-12-27 19:12:29,351 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-27 19:12:29,351 INFO L87 Difference]: Start difference. First operand 27215 states. Second operand 3 states. [2019-12-27 19:12:29,664 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-27 19:12:29,664 INFO L93 Difference]: Finished difference Result 40707 states and 212933 transitions. [2019-12-27 19:12:29,665 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-27 19:12:29,665 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 3 [2019-12-27 19:12:29,665 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-27 19:12:29,825 INFO L225 Difference]: With dead ends: 40707 [2019-12-27 19:12:29,826 INFO L226 Difference]: Without dead ends: 37840 [2019-12-27 19:12:29,827 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-27 19:12:31,283 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37840 states. [2019-12-27 19:12:32,212 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37840 to 31312. [2019-12-27 19:12:32,212 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 31312 states. [2019-12-27 19:12:32,599 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31312 states to 31312 states and 167892 transitions. [2019-12-27 19:12:32,599 INFO L78 Accepts]: Start accepts. Automaton has 31312 states and 167892 transitions. Word has length 3 [2019-12-27 19:12:32,599 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-27 19:12:32,599 INFO L462 AbstractCegarLoop]: Abstraction has 31312 states and 167892 transitions. [2019-12-27 19:12:32,599 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-12-27 19:12:32,600 INFO L276 IsEmpty]: Start isEmpty. Operand 31312 states and 167892 transitions. [2019-12-27 19:12:32,600 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2019-12-27 19:12:32,600 INFO L403 BasicCegarLoop]: Found error trace [2019-12-27 19:12:32,600 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-27 19:12:32,600 INFO L410 AbstractCegarLoop]: === Iteration 2 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION]=== [2019-12-27 19:12:32,601 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-27 19:12:32,601 INFO L82 PathProgramCache]: Analyzing trace with hash 1611095704, now seen corresponding path program 1 times [2019-12-27 19:12:32,601 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-27 19:12:32,601 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [509690950] [2019-12-27 19:12:32,601 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-27 19:12:32,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-27 19:12:32,642 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 19:12:32,642 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [509690950] [2019-12-27 19:12:32,642 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-27 19:12:32,643 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-12-27 19:12:32,643 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [372407683] [2019-12-27 19:12:32,643 INFO L132 pAbStrategyModuleMcr]: Constructing automaton for MCR equivalence class. [2019-12-27 19:12:32,644 INFO L197 pAbStrategyModuleMcr]: Started intersection. [2019-12-27 19:12:32,645 INFO L208 pAbStrategyModuleMcr]: Finished intersection with 11 states and 10 transitions. [2019-12-27 19:12:32,645 INFO L219 pAbStrategyModuleMcr]: Constructing interpolant automaton by labelling MCR automaton. [2019-12-27 19:12:32,645 INFO L288 pAbStrategyModuleMcr]: Construction finished. Needed to calculate wp 0 times. [2019-12-27 19:12:32,645 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-12-27 19:12:32,645 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-27 19:12:32,645 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-12-27 19:12:32,647 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2019-12-27 19:12:32,647 INFO L87 Difference]: Start difference. First operand 31312 states and 167892 transitions. Second operand 5 states. [2019-12-27 19:12:33,087 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-27 19:12:33,087 INFO L93 Difference]: Finished difference Result 61552 states and 310872 transitions. [2019-12-27 19:12:33,087 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-12-27 19:12:33,087 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 10 [2019-12-27 19:12:33,088 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-27 19:12:35,654 INFO L225 Difference]: With dead ends: 61552 [2019-12-27 19:12:35,654 INFO L226 Difference]: Without dead ends: 61417 [2019-12-27 19:12:35,654 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2019-12-27 19:12:35,890 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 61417 states. [2019-12-27 19:12:36,793 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 61417 to 31849. [2019-12-27 19:12:36,793 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 31849 states. [2019-12-27 19:12:36,924 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31849 states to 31849 states and 171175 transitions. [2019-12-27 19:12:36,924 INFO L78 Accepts]: Start accepts. Automaton has 31849 states and 171175 transitions. Word has length 10 [2019-12-27 19:12:36,924 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-27 19:12:36,925 INFO L462 AbstractCegarLoop]: Abstraction has 31849 states and 171175 transitions. [2019-12-27 19:12:36,925 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-12-27 19:12:36,925 INFO L276 IsEmpty]: Start isEmpty. Operand 31849 states and 171175 transitions. [2019-12-27 19:12:36,925 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2019-12-27 19:12:36,926 INFO L403 BasicCegarLoop]: Found error trace [2019-12-27 19:12:36,926 INFO L411 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-27 19:12:36,926 INFO L410 AbstractCegarLoop]: === Iteration 3 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION]=== [2019-12-27 19:12:36,926 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-27 19:12:36,926 INFO L82 PathProgramCache]: Analyzing trace with hash 1422265713, now seen corresponding path program 1 times [2019-12-27 19:12:36,927 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-27 19:12:36,927 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [955425443] [2019-12-27 19:12:36,927 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-27 19:12:36,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-27 19:12:36,974 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 19:12:36,974 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [955425443] [2019-12-27 19:12:36,974 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-27 19:12:36,975 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-12-27 19:12:36,975 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [335794188] [2019-12-27 19:12:36,975 INFO L132 pAbStrategyModuleMcr]: Constructing automaton for MCR equivalence class. [2019-12-27 19:12:36,976 INFO L197 pAbStrategyModuleMcr]: Started intersection. [2019-12-27 19:12:36,978 INFO L208 pAbStrategyModuleMcr]: Finished intersection with 15 states and 14 transitions. [2019-12-27 19:12:36,978 INFO L219 pAbStrategyModuleMcr]: Constructing interpolant automaton by labelling MCR automaton. [2019-12-27 19:12:36,978 INFO L288 pAbStrategyModuleMcr]: Construction finished. Needed to calculate wp 0 times. [2019-12-27 19:12:36,978 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-12-27 19:12:36,979 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-27 19:12:36,979 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-12-27 19:12:36,979 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2019-12-27 19:12:36,979 INFO L87 Difference]: Start difference. First operand 31849 states and 171175 transitions. Second operand 5 states. [2019-12-27 19:12:37,989 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-27 19:12:37,990 INFO L93 Difference]: Finished difference Result 68818 states and 349292 transitions. [2019-12-27 19:12:37,990 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-12-27 19:12:37,990 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 14 [2019-12-27 19:12:37,990 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-27 19:12:38,262 INFO L225 Difference]: With dead ends: 68818 [2019-12-27 19:12:38,263 INFO L226 Difference]: Without dead ends: 68623 [2019-12-27 19:12:38,263 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2019-12-27 19:12:38,476 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 68623 states. [2019-12-27 19:12:42,579 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 68623 to 35815. [2019-12-27 19:12:42,580 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 35815 states. [2019-12-27 19:12:42,723 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35815 states to 35815 states and 193241 transitions. [2019-12-27 19:12:42,723 INFO L78 Accepts]: Start accepts. Automaton has 35815 states and 193241 transitions. Word has length 14 [2019-12-27 19:12:42,723 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-27 19:12:42,724 INFO L462 AbstractCegarLoop]: Abstraction has 35815 states and 193241 transitions. [2019-12-27 19:12:42,724 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-12-27 19:12:42,724 INFO L276 IsEmpty]: Start isEmpty. Operand 35815 states and 193241 transitions. [2019-12-27 19:12:42,725 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2019-12-27 19:12:42,726 INFO L403 BasicCegarLoop]: Found error trace [2019-12-27 19:12:42,726 INFO L411 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-27 19:12:42,726 INFO L410 AbstractCegarLoop]: === Iteration 4 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION]=== [2019-12-27 19:12:42,726 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-27 19:12:42,726 INFO L82 PathProgramCache]: Analyzing trace with hash 4042225, now seen corresponding path program 1 times [2019-12-27 19:12:42,726 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-27 19:12:42,726 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1562193850] [2019-12-27 19:12:42,727 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-27 19:12:42,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-27 19:12:42,758 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 19:12:42,759 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1562193850] [2019-12-27 19:12:42,759 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-27 19:12:42,759 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-12-27 19:12:42,759 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [928045318] [2019-12-27 19:12:42,759 INFO L132 pAbStrategyModuleMcr]: Constructing automaton for MCR equivalence class. [2019-12-27 19:12:42,761 INFO L197 pAbStrategyModuleMcr]: Started intersection. [2019-12-27 19:12:42,766 INFO L208 pAbStrategyModuleMcr]: Finished intersection with 32 states and 45 transitions. [2019-12-27 19:12:42,766 INFO L219 pAbStrategyModuleMcr]: Constructing interpolant automaton by labelling MCR automaton. [2019-12-27 19:12:42,770 INFO L288 pAbStrategyModuleMcr]: Construction finished. Needed to calculate wp 1 times. [2019-12-27 19:12:42,771 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-12-27 19:12:42,771 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-27 19:12:42,771 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-12-27 19:12:42,771 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-12-27 19:12:42,772 INFO L87 Difference]: Start difference. First operand 35815 states and 193241 transitions. Second operand 4 states. [2019-12-27 19:12:42,993 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-27 19:12:42,994 INFO L93 Difference]: Finished difference Result 17018 states and 66561 transitions. [2019-12-27 19:12:42,994 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-12-27 19:12:42,994 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 17 [2019-12-27 19:12:42,994 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-27 19:12:43,046 INFO L225 Difference]: With dead ends: 17018 [2019-12-27 19:12:43,046 INFO L226 Difference]: Without dead ends: 17018 [2019-12-27 19:12:43,047 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2019-12-27 19:12:43,118 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17018 states. [2019-12-27 19:12:43,326 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17018 to 11727. [2019-12-27 19:12:43,326 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11727 states. [2019-12-27 19:12:43,359 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11727 states to 11727 states and 46027 transitions. [2019-12-27 19:12:43,359 INFO L78 Accepts]: Start accepts. Automaton has 11727 states and 46027 transitions. Word has length 17 [2019-12-27 19:12:43,359 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-27 19:12:43,360 INFO L462 AbstractCegarLoop]: Abstraction has 11727 states and 46027 transitions. [2019-12-27 19:12:43,360 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-12-27 19:12:43,360 INFO L276 IsEmpty]: Start isEmpty. Operand 11727 states and 46027 transitions. [2019-12-27 19:12:43,361 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2019-12-27 19:12:43,361 INFO L403 BasicCegarLoop]: Found error trace [2019-12-27 19:12:43,361 INFO L411 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-27 19:12:43,361 INFO L410 AbstractCegarLoop]: === Iteration 5 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION]=== [2019-12-27 19:12:43,361 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-27 19:12:43,361 INFO L82 PathProgramCache]: Analyzing trace with hash 443360276, now seen corresponding path program 1 times [2019-12-27 19:12:43,362 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-27 19:12:43,362 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1697183862] [2019-12-27 19:12:43,362 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-27 19:12:43,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-27 19:12:43,418 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 19:12:43,419 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1697183862] [2019-12-27 19:12:43,419 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [303763856] [2019-12-27 19:12:43,419 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 19:12:43,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-27 19:12:43,507 INFO L264 TraceCheckSpWp]: Trace formula consists of 125 conjuncts, 7 conjunts are in the unsatisfiable core [2019-12-27 19:12:43,511 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-27 19:12:43,606 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 19:12:43,607 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-12-27 19:12:43,607 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 10 [2019-12-27 19:12:43,607 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [228551081] [2019-12-27 19:12:43,607 INFO L132 pAbStrategyModuleMcr]: Constructing automaton for MCR equivalence class. [2019-12-27 19:12:43,612 INFO L197 pAbStrategyModuleMcr]: Started intersection. [2019-12-27 19:12:43,618 INFO L208 pAbStrategyModuleMcr]: Finished intersection with 35 states and 50 transitions. [2019-12-27 19:12:43,618 INFO L219 pAbStrategyModuleMcr]: Constructing interpolant automaton by labelling MCR automaton. [2019-12-27 19:12:43,919 INFO L288 pAbStrategyModuleMcr]: Construction finished. Needed to calculate wp 4 times. [2019-12-27 19:12:43,920 INFO L442 AbstractCegarLoop]: Interpolant automaton has 9 states [2019-12-27 19:12:43,920 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-27 19:12:43,920 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2019-12-27 19:12:43,920 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=50, Invalid=132, Unknown=0, NotChecked=0, Total=182 [2019-12-27 19:12:43,920 INFO L87 Difference]: Start difference. First operand 11727 states and 46027 transitions. Second operand 9 states. [2019-12-27 19:12:44,593 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-27 19:12:44,593 INFO L93 Difference]: Finished difference Result 30477 states and 115112 transitions. [2019-12-27 19:12:44,593 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2019-12-27 19:12:44,593 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 18 [2019-12-27 19:12:44,594 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-27 19:12:44,655 INFO L225 Difference]: With dead ends: 30477 [2019-12-27 19:12:44,656 INFO L226 Difference]: Without dead ends: 30373 [2019-12-27 19:12:44,656 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 131 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=191, Invalid=511, Unknown=0, NotChecked=0, Total=702 [2019-12-27 19:12:44,724 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30373 states. [2019-12-27 19:12:44,940 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30373 to 11001. [2019-12-27 19:12:44,940 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11001 states. [2019-12-27 19:12:44,970 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11001 states to 11001 states and 43045 transitions. [2019-12-27 19:12:44,970 INFO L78 Accepts]: Start accepts. Automaton has 11001 states and 43045 transitions. Word has length 18 [2019-12-27 19:12:44,971 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-27 19:12:44,971 INFO L462 AbstractCegarLoop]: Abstraction has 11001 states and 43045 transitions. [2019-12-27 19:12:44,971 INFO L463 AbstractCegarLoop]: Interpolant automaton has 9 states. [2019-12-27 19:12:44,971 INFO L276 IsEmpty]: Start isEmpty. Operand 11001 states and 43045 transitions. [2019-12-27 19:12:44,972 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2019-12-27 19:12:44,972 INFO L403 BasicCegarLoop]: Found error trace [2019-12-27 19:12:44,972 INFO L411 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-27 19:12:45,174 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-12-27 19:12:45,174 INFO L410 AbstractCegarLoop]: === Iteration 6 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION]=== [2019-12-27 19:12:45,175 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-27 19:12:45,175 INFO L82 PathProgramCache]: Analyzing trace with hash 945001287, now seen corresponding path program 1 times [2019-12-27 19:12:45,176 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-27 19:12:45,176 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [247240318] [2019-12-27 19:12:45,176 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-27 19:12:45,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-27 19:12:45,267 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 19:12:45,268 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [247240318] [2019-12-27 19:12:45,268 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-27 19:12:45,268 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-12-27 19:12:45,268 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1704563335] [2019-12-27 19:12:45,269 INFO L132 pAbStrategyModuleMcr]: Constructing automaton for MCR equivalence class. [2019-12-27 19:12:45,272 INFO L197 pAbStrategyModuleMcr]: Started intersection. [2019-12-27 19:12:45,277 INFO L208 pAbStrategyModuleMcr]: Finished intersection with 19 states and 18 transitions. [2019-12-27 19:12:45,277 INFO L219 pAbStrategyModuleMcr]: Constructing interpolant automaton by labelling MCR automaton. [2019-12-27 19:12:45,278 INFO L288 pAbStrategyModuleMcr]: Construction finished. Needed to calculate wp 0 times. [2019-12-27 19:12:45,279 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-12-27 19:12:45,280 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-27 19:12:45,280 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-12-27 19:12:45,280 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2019-12-27 19:12:45,281 INFO L87 Difference]: Start difference. First operand 11001 states and 43045 transitions. Second operand 7 states. [2019-12-27 19:12:46,044 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-27 19:12:46,046 INFO L93 Difference]: Finished difference Result 28862 states and 110813 transitions. [2019-12-27 19:12:46,046 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2019-12-27 19:12:46,047 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 18 [2019-12-27 19:12:46,047 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-27 19:12:46,122 INFO L225 Difference]: With dead ends: 28862 [2019-12-27 19:12:46,122 INFO L226 Difference]: Without dead ends: 28784 [2019-12-27 19:12:46,123 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=72, Invalid=138, Unknown=0, NotChecked=0, Total=210 [2019-12-27 19:12:46,188 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28784 states. [2019-12-27 19:12:46,410 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28784 to 9913. [2019-12-27 19:12:46,410 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9913 states. [2019-12-27 19:12:46,438 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9913 states to 9913 states and 38486 transitions. [2019-12-27 19:12:46,438 INFO L78 Accepts]: Start accepts. Automaton has 9913 states and 38486 transitions. Word has length 18 [2019-12-27 19:12:46,438 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-27 19:12:46,438 INFO L462 AbstractCegarLoop]: Abstraction has 9913 states and 38486 transitions. [2019-12-27 19:12:46,439 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-12-27 19:12:46,439 INFO L276 IsEmpty]: Start isEmpty. Operand 9913 states and 38486 transitions. [2019-12-27 19:12:46,440 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2019-12-27 19:12:46,440 INFO L403 BasicCegarLoop]: Found error trace [2019-12-27 19:12:46,440 INFO L411 BasicCegarLoop]: trace histogram [3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-27 19:12:46,440 INFO L410 AbstractCegarLoop]: === Iteration 7 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION]=== [2019-12-27 19:12:46,440 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-27 19:12:46,440 INFO L82 PathProgramCache]: Analyzing trace with hash 1251122520, now seen corresponding path program 1 times [2019-12-27 19:12:46,441 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-27 19:12:46,441 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [996832509] [2019-12-27 19:12:46,441 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-27 19:12:46,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-27 19:12:46,491 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2019-12-27 19:12:46,491 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [996832509] [2019-12-27 19:12:46,491 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-27 19:12:46,491 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-12-27 19:12:46,492 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [204205070] [2019-12-27 19:12:46,493 INFO L132 pAbStrategyModuleMcr]: Constructing automaton for MCR equivalence class. [2019-12-27 19:12:46,494 INFO L197 pAbStrategyModuleMcr]: Started intersection. [2019-12-27 19:12:46,498 INFO L208 pAbStrategyModuleMcr]: Finished intersection with 19 states and 18 transitions. [2019-12-27 19:12:46,498 INFO L219 pAbStrategyModuleMcr]: Constructing interpolant automaton by labelling MCR automaton. [2019-12-27 19:12:46,498 INFO L288 pAbStrategyModuleMcr]: Construction finished. Needed to calculate wp 0 times. [2019-12-27 19:12:46,499 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-12-27 19:12:46,499 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-27 19:12:46,499 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-12-27 19:12:46,499 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2019-12-27 19:12:46,499 INFO L87 Difference]: Start difference. First operand 9913 states and 38486 transitions. Second operand 5 states. [2019-12-27 19:12:46,765 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-27 19:12:46,765 INFO L93 Difference]: Finished difference Result 21922 states and 84447 transitions. [2019-12-27 19:12:46,765 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-12-27 19:12:46,765 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 18 [2019-12-27 19:12:46,766 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-27 19:12:46,831 INFO L225 Difference]: With dead ends: 21922 [2019-12-27 19:12:46,831 INFO L226 Difference]: Without dead ends: 21850 [2019-12-27 19:12:46,831 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2019-12-27 19:12:46,886 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21850 states. [2019-12-27 19:12:47,080 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21850 to 11607. [2019-12-27 19:12:47,080 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11607 states. [2019-12-27 19:12:47,123 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11607 states to 11607 states and 45534 transitions. [2019-12-27 19:12:47,123 INFO L78 Accepts]: Start accepts. Automaton has 11607 states and 45534 transitions. Word has length 18 [2019-12-27 19:12:47,123 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-27 19:12:47,123 INFO L462 AbstractCegarLoop]: Abstraction has 11607 states and 45534 transitions. [2019-12-27 19:12:47,123 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-12-27 19:12:47,123 INFO L276 IsEmpty]: Start isEmpty. Operand 11607 states and 45534 transitions. [2019-12-27 19:12:47,127 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2019-12-27 19:12:47,127 INFO L403 BasicCegarLoop]: Found error trace [2019-12-27 19:12:47,127 INFO L411 BasicCegarLoop]: trace histogram [3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-27 19:12:47,127 INFO L410 AbstractCegarLoop]: === Iteration 8 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION]=== [2019-12-27 19:12:47,127 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-27 19:12:47,127 INFO L82 PathProgramCache]: Analyzing trace with hash 1715192443, now seen corresponding path program 1 times [2019-12-27 19:12:47,128 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-27 19:12:47,128 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1131421583] [2019-12-27 19:12:47,128 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-27 19:12:47,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-27 19:12:47,299 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2019-12-27 19:12:47,299 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1131421583] [2019-12-27 19:12:47,300 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [670935571] [2019-12-27 19:12:47,300 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-12-27 19:12:47,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-27 19:12:47,412 INFO L264 TraceCheckSpWp]: Trace formula consists of 136 conjuncts, 7 conjunts are in the unsatisfiable core [2019-12-27 19:12:47,413 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-27 19:12:47,508 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2019-12-27 19:12:47,508 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-12-27 19:12:47,508 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 10 [2019-12-27 19:12:47,509 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [33635351] [2019-12-27 19:12:47,511 INFO L132 pAbStrategyModuleMcr]: Constructing automaton for MCR equivalence class. [2019-12-27 19:12:47,514 INFO L197 pAbStrategyModuleMcr]: Started intersection. [2019-12-27 19:12:47,526 INFO L208 pAbStrategyModuleMcr]: Finished intersection with 55 states and 86 transitions. [2019-12-27 19:12:47,527 INFO L219 pAbStrategyModuleMcr]: Constructing interpolant automaton by labelling MCR automaton. [2019-12-27 19:12:47,595 INFO L288 pAbStrategyModuleMcr]: Construction finished. Needed to calculate wp 8 times. [2019-12-27 19:12:47,595 INFO L442 AbstractCegarLoop]: Interpolant automaton has 10 states [2019-12-27 19:12:47,596 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-27 19:12:47,596 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2019-12-27 19:12:47,596 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=152, Unknown=0, NotChecked=0, Total=210 [2019-12-27 19:12:47,596 INFO L87 Difference]: Start difference. First operand 11607 states and 45534 transitions. Second operand 10 states. [2019-12-27 19:12:48,394 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-27 19:12:48,394 INFO L93 Difference]: Finished difference Result 32512 states and 123297 transitions. [2019-12-27 19:12:48,394 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2019-12-27 19:12:48,394 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 22 [2019-12-27 19:12:48,395 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-27 19:12:48,477 INFO L225 Difference]: With dead ends: 32512 [2019-12-27 19:12:48,477 INFO L226 Difference]: Without dead ends: 32408 [2019-12-27 19:12:48,478 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 20 SyntacticMatches, 1 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 144 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=209, Invalid=547, Unknown=0, NotChecked=0, Total=756 [2019-12-27 19:12:48,551 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32408 states. [2019-12-27 19:12:48,831 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32408 to 11357. [2019-12-27 19:12:48,832 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11357 states. [2019-12-27 19:12:48,878 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11357 states to 11357 states and 44521 transitions. [2019-12-27 19:12:48,878 INFO L78 Accepts]: Start accepts. Automaton has 11357 states and 44521 transitions. Word has length 22 [2019-12-27 19:12:48,878 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-27 19:12:48,878 INFO L462 AbstractCegarLoop]: Abstraction has 11357 states and 44521 transitions. [2019-12-27 19:12:48,878 INFO L463 AbstractCegarLoop]: Interpolant automaton has 10 states. [2019-12-27 19:12:48,879 INFO L276 IsEmpty]: Start isEmpty. Operand 11357 states and 44521 transitions. [2019-12-27 19:12:48,882 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2019-12-27 19:12:48,882 INFO L403 BasicCegarLoop]: Found error trace [2019-12-27 19:12:48,882 INFO L411 BasicCegarLoop]: trace histogram [3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-27 19:12:49,086 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-12-27 19:12:49,086 INFO L410 AbstractCegarLoop]: === Iteration 9 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION]=== [2019-12-27 19:12:49,087 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-27 19:12:49,087 INFO L82 PathProgramCache]: Analyzing trace with hash 677055142, now seen corresponding path program 1 times [2019-12-27 19:12:49,087 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-27 19:12:49,088 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1938506517] [2019-12-27 19:12:49,088 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-27 19:12:49,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-27 19:12:49,142 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2019-12-27 19:12:49,143 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1938506517] [2019-12-27 19:12:49,143 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1949535459] [2019-12-27 19:12:49,143 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-12-27 19:12:49,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-27 19:12:49,224 INFO L264 TraceCheckSpWp]: Trace formula consists of 136 conjuncts, 7 conjunts are in the unsatisfiable core [2019-12-27 19:12:49,226 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-27 19:12:49,292 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2019-12-27 19:12:49,293 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-12-27 19:12:49,293 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 10 [2019-12-27 19:12:49,293 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [576224679] [2019-12-27 19:12:49,293 INFO L132 pAbStrategyModuleMcr]: Constructing automaton for MCR equivalence class. [2019-12-27 19:12:49,297 INFO L197 pAbStrategyModuleMcr]: Started intersection. [2019-12-27 19:12:49,305 INFO L208 pAbStrategyModuleMcr]: Finished intersection with 39 states and 54 transitions. [2019-12-27 19:12:49,305 INFO L219 pAbStrategyModuleMcr]: Constructing interpolant automaton by labelling MCR automaton. [2019-12-27 19:12:49,338 INFO L288 pAbStrategyModuleMcr]: Construction finished. Needed to calculate wp 4 times. [2019-12-27 19:12:49,338 INFO L442 AbstractCegarLoop]: Interpolant automaton has 9 states [2019-12-27 19:12:49,338 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-27 19:12:49,339 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2019-12-27 19:12:49,339 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=50, Invalid=132, Unknown=0, NotChecked=0, Total=182 [2019-12-27 19:12:49,340 INFO L87 Difference]: Start difference. First operand 11357 states and 44521 transitions. Second operand 9 states. [2019-12-27 19:12:50,175 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-27 19:12:50,175 INFO L93 Difference]: Finished difference Result 33238 states and 126236 transitions. [2019-12-27 19:12:50,175 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2019-12-27 19:12:50,175 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 22 [2019-12-27 19:12:50,175 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-27 19:12:50,253 INFO L225 Difference]: With dead ends: 33238 [2019-12-27 19:12:50,253 INFO L226 Difference]: Without dead ends: 33134 [2019-12-27 19:12:50,253 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 131 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=191, Invalid=511, Unknown=0, NotChecked=0, Total=702 [2019-12-27 19:12:50,327 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33134 states. [2019-12-27 19:12:50,582 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33134 to 11439. [2019-12-27 19:12:50,582 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11439 states. [2019-12-27 19:12:50,614 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11439 states to 11439 states and 44850 transitions. [2019-12-27 19:12:50,614 INFO L78 Accepts]: Start accepts. Automaton has 11439 states and 44850 transitions. Word has length 22 [2019-12-27 19:12:50,614 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-27 19:12:50,614 INFO L462 AbstractCegarLoop]: Abstraction has 11439 states and 44850 transitions. [2019-12-27 19:12:50,614 INFO L463 AbstractCegarLoop]: Interpolant automaton has 9 states. [2019-12-27 19:12:50,614 INFO L276 IsEmpty]: Start isEmpty. Operand 11439 states and 44850 transitions. [2019-12-27 19:12:50,617 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2019-12-27 19:12:50,618 INFO L403 BasicCegarLoop]: Found error trace [2019-12-27 19:12:50,618 INFO L411 BasicCegarLoop]: trace histogram [3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-27 19:12:50,821 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-12-27 19:12:50,821 INFO L410 AbstractCegarLoop]: === Iteration 10 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION]=== [2019-12-27 19:12:50,821 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-27 19:12:50,821 INFO L82 PathProgramCache]: Analyzing trace with hash 1396745761, now seen corresponding path program 1 times [2019-12-27 19:12:50,822 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-27 19:12:50,823 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [582337765] [2019-12-27 19:12:50,823 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-27 19:12:50,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-27 19:12:50,896 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2019-12-27 19:12:50,896 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [582337765] [2019-12-27 19:12:50,897 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-27 19:12:50,897 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-12-27 19:12:50,897 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1394541125] [2019-12-27 19:12:50,897 INFO L132 pAbStrategyModuleMcr]: Constructing automaton for MCR equivalence class. [2019-12-27 19:12:50,900 INFO L197 pAbStrategyModuleMcr]: Started intersection. [2019-12-27 19:12:50,904 INFO L208 pAbStrategyModuleMcr]: Finished intersection with 23 states and 22 transitions. [2019-12-27 19:12:50,904 INFO L219 pAbStrategyModuleMcr]: Constructing interpolant automaton by labelling MCR automaton. [2019-12-27 19:12:50,906 INFO L288 pAbStrategyModuleMcr]: Construction finished. Needed to calculate wp 0 times. [2019-12-27 19:12:50,907 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-12-27 19:12:50,908 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-27 19:12:50,908 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-12-27 19:12:50,908 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2019-12-27 19:12:50,908 INFO L87 Difference]: Start difference. First operand 11439 states and 44850 transitions. Second operand 7 states. [2019-12-27 19:12:51,389 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-27 19:12:51,390 INFO L93 Difference]: Finished difference Result 31058 states and 120097 transitions. [2019-12-27 19:12:51,391 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2019-12-27 19:12:51,391 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 22 [2019-12-27 19:12:51,391 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-27 19:12:51,490 INFO L225 Difference]: With dead ends: 31058 [2019-12-27 19:12:51,490 INFO L226 Difference]: Without dead ends: 30980 [2019-12-27 19:12:51,490 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=72, Invalid=138, Unknown=0, NotChecked=0, Total=210 [2019-12-27 19:12:51,773 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30980 states. [2019-12-27 19:12:51,990 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30980 to 11093. [2019-12-27 19:12:51,990 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11093 states. [2019-12-27 19:12:52,020 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11093 states to 11093 states and 43368 transitions. [2019-12-27 19:12:52,021 INFO L78 Accepts]: Start accepts. Automaton has 11093 states and 43368 transitions. Word has length 22 [2019-12-27 19:12:52,021 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-27 19:12:52,021 INFO L462 AbstractCegarLoop]: Abstraction has 11093 states and 43368 transitions. [2019-12-27 19:12:52,021 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-12-27 19:12:52,021 INFO L276 IsEmpty]: Start isEmpty. Operand 11093 states and 43368 transitions. [2019-12-27 19:12:52,023 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2019-12-27 19:12:52,024 INFO L403 BasicCegarLoop]: Found error trace [2019-12-27 19:12:52,024 INFO L411 BasicCegarLoop]: trace histogram [3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-27 19:12:52,024 INFO L410 AbstractCegarLoop]: === Iteration 11 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION]=== [2019-12-27 19:12:52,024 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-27 19:12:52,024 INFO L82 PathProgramCache]: Analyzing trace with hash 1396448409, now seen corresponding path program 1 times [2019-12-27 19:12:52,025 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-27 19:12:52,025 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [810418256] [2019-12-27 19:12:52,025 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-27 19:12:52,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-27 19:12:52,088 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2019-12-27 19:12:52,089 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [810418256] [2019-12-27 19:12:52,089 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-27 19:12:52,089 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-12-27 19:12:52,089 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [2036747259] [2019-12-27 19:12:52,089 INFO L132 pAbStrategyModuleMcr]: Constructing automaton for MCR equivalence class. [2019-12-27 19:12:52,092 INFO L197 pAbStrategyModuleMcr]: Started intersection. [2019-12-27 19:12:52,096 INFO L208 pAbStrategyModuleMcr]: Finished intersection with 23 states and 22 transitions. [2019-12-27 19:12:52,096 INFO L219 pAbStrategyModuleMcr]: Constructing interpolant automaton by labelling MCR automaton. [2019-12-27 19:12:52,096 INFO L288 pAbStrategyModuleMcr]: Construction finished. Needed to calculate wp 0 times. [2019-12-27 19:12:52,097 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-12-27 19:12:52,097 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-27 19:12:52,097 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-12-27 19:12:52,097 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2019-12-27 19:12:52,098 INFO L87 Difference]: Start difference. First operand 11093 states and 43368 transitions. Second operand 7 states. [2019-12-27 19:12:52,541 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-27 19:12:52,541 INFO L93 Difference]: Finished difference Result 30992 states and 119819 transitions. [2019-12-27 19:12:52,541 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2019-12-27 19:12:52,541 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 22 [2019-12-27 19:12:52,541 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-27 19:12:52,609 INFO L225 Difference]: With dead ends: 30992 [2019-12-27 19:12:52,609 INFO L226 Difference]: Without dead ends: 30914 [2019-12-27 19:12:52,610 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=72, Invalid=138, Unknown=0, NotChecked=0, Total=210 [2019-12-27 19:12:52,677 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30914 states. [2019-12-27 19:12:52,912 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30914 to 10835. [2019-12-27 19:12:52,912 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10835 states. [2019-12-27 19:12:52,945 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10835 states to 10835 states and 42198 transitions. [2019-12-27 19:12:52,945 INFO L78 Accepts]: Start accepts. Automaton has 10835 states and 42198 transitions. Word has length 22 [2019-12-27 19:12:52,945 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-27 19:12:52,945 INFO L462 AbstractCegarLoop]: Abstraction has 10835 states and 42198 transitions. [2019-12-27 19:12:52,946 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-12-27 19:12:52,946 INFO L276 IsEmpty]: Start isEmpty. Operand 10835 states and 42198 transitions. [2019-12-27 19:12:52,948 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2019-12-27 19:12:52,948 INFO L403 BasicCegarLoop]: Found error trace [2019-12-27 19:12:52,948 INFO L411 BasicCegarLoop]: trace histogram [4, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-27 19:12:52,948 INFO L410 AbstractCegarLoop]: === Iteration 12 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION]=== [2019-12-27 19:12:52,948 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-27 19:12:52,949 INFO L82 PathProgramCache]: Analyzing trace with hash -2032188915, now seen corresponding path program 1 times [2019-12-27 19:12:52,949 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-27 19:12:52,949 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1461202861] [2019-12-27 19:12:52,949 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-27 19:12:52,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-27 19:12:52,998 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2019-12-27 19:12:52,998 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1461202861] [2019-12-27 19:12:52,999 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-27 19:12:52,999 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-12-27 19:12:52,999 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [935398868] [2019-12-27 19:12:52,999 INFO L132 pAbStrategyModuleMcr]: Constructing automaton for MCR equivalence class. [2019-12-27 19:12:53,001 INFO L197 pAbStrategyModuleMcr]: Started intersection. [2019-12-27 19:12:53,005 INFO L208 pAbStrategyModuleMcr]: Finished intersection with 23 states and 22 transitions. [2019-12-27 19:12:53,006 INFO L219 pAbStrategyModuleMcr]: Constructing interpolant automaton by labelling MCR automaton. [2019-12-27 19:12:53,006 INFO L288 pAbStrategyModuleMcr]: Construction finished. Needed to calculate wp 0 times. [2019-12-27 19:12:53,006 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-12-27 19:12:53,006 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-27 19:12:53,007 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-12-27 19:12:53,007 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2019-12-27 19:12:53,007 INFO L87 Difference]: Start difference. First operand 10835 states and 42198 transitions. Second operand 5 states. [2019-12-27 19:12:53,415 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-27 19:12:53,416 INFO L93 Difference]: Finished difference Result 22192 states and 85781 transitions. [2019-12-27 19:12:53,416 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-12-27 19:12:53,416 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 22 [2019-12-27 19:12:53,417 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-27 19:12:53,493 INFO L225 Difference]: With dead ends: 22192 [2019-12-27 19:12:53,493 INFO L226 Difference]: Without dead ends: 22108 [2019-12-27 19:12:53,494 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2019-12-27 19:12:53,555 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22108 states. [2019-12-27 19:12:53,748 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22108 to 12085. [2019-12-27 19:12:53,749 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12085 states. [2019-12-27 19:12:53,780 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12085 states to 12085 states and 47309 transitions. [2019-12-27 19:12:53,780 INFO L78 Accepts]: Start accepts. Automaton has 12085 states and 47309 transitions. Word has length 22 [2019-12-27 19:12:53,780 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-27 19:12:53,780 INFO L462 AbstractCegarLoop]: Abstraction has 12085 states and 47309 transitions. [2019-12-27 19:12:53,780 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-12-27 19:12:53,780 INFO L276 IsEmpty]: Start isEmpty. Operand 12085 states and 47309 transitions. [2019-12-27 19:12:53,784 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2019-12-27 19:12:53,784 INFO L403 BasicCegarLoop]: Found error trace [2019-12-27 19:12:53,784 INFO L411 BasicCegarLoop]: trace histogram [5, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-27 19:12:53,784 INFO L410 AbstractCegarLoop]: === Iteration 13 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION]=== [2019-12-27 19:12:53,784 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-27 19:12:53,784 INFO L82 PathProgramCache]: Analyzing trace with hash -2038302932, now seen corresponding path program 1 times [2019-12-27 19:12:53,785 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-27 19:12:53,785 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [995963436] [2019-12-27 19:12:53,785 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-27 19:12:53,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-27 19:12:53,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-27 19:12:53,809 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-27 19:12:53,809 INFO L476 BasicCegarLoop]: Counterexample might be feasible [2019-12-27 19:12:53,809 WARN L364 ceAbstractionStarter]: 4 thread instances were not sufficient, I will increase this number and restart the analysis [2019-12-27 19:12:53,809 INFO L340 ceAbstractionStarter]: Constructing petrified ICFG for 5 thread instances. [2019-12-27 19:12:53,824 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread4of5ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 19:12:53,824 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread4of5ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 19:12:53,824 WARN L315 ript$VariableManager]: TermVariabe thr2Thread4of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 19:12:53,825 WARN L315 ript$VariableManager]: TermVariabe thr2Thread4of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 19:12:53,825 WARN L315 ript$VariableManager]: TermVariabe thr2Thread4of5ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 19:12:53,825 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread4of5ForFork0_#t~nondet2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 19:12:53,825 WARN L315 ript$VariableManager]: TermVariabe thr2Thread4of5ForFork0_~k~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 19:12:53,825 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread4of5ForFork0_#t~nondet2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 19:12:53,825 WARN L315 ript$VariableManager]: TermVariabe thr2Thread4of5ForFork0_~k~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 19:12:53,825 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread4of5ForFork0_#t~nondet3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 19:12:53,826 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread4of5ForFork0_#t~nondet3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 19:12:53,826 WARN L315 ript$VariableManager]: TermVariabe thr2Thread4of5ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 19:12:53,826 WARN L315 ript$VariableManager]: TermVariabe thr2Thread4of5ForFork0_~k~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 19:12:53,826 WARN L315 ript$VariableManager]: TermVariabe thr2Thread4of5ForFork0_~k~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 19:12:53,826 WARN L315 ript$VariableManager]: TermVariabe thr2Thread4of5ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 19:12:53,827 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread5of5ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 19:12:53,827 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread5of5ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 19:12:53,827 WARN L315 ript$VariableManager]: TermVariabe thr2Thread5of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 19:12:53,827 WARN L315 ript$VariableManager]: TermVariabe thr2Thread5of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 19:12:53,827 WARN L315 ript$VariableManager]: TermVariabe thr2Thread5of5ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 19:12:53,827 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread5of5ForFork0_#t~nondet2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 19:12:53,827 WARN L315 ript$VariableManager]: TermVariabe thr2Thread5of5ForFork0_~k~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 19:12:53,828 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread5of5ForFork0_#t~nondet2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 19:12:53,828 WARN L315 ript$VariableManager]: TermVariabe thr2Thread5of5ForFork0_~k~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 19:12:53,828 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread5of5ForFork0_#t~nondet3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 19:12:53,828 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread5of5ForFork0_#t~nondet3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 19:12:53,828 WARN L315 ript$VariableManager]: TermVariabe thr2Thread5of5ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 19:12:53,828 WARN L315 ript$VariableManager]: TermVariabe thr2Thread5of5ForFork0_~k~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 19:12:53,828 WARN L315 ript$VariableManager]: TermVariabe thr2Thread5of5ForFork0_~k~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 19:12:53,829 WARN L315 ript$VariableManager]: TermVariabe thr2Thread5of5ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 19:12:53,829 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread3of5ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 19:12:53,829 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread3of5ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 19:12:53,829 WARN L315 ript$VariableManager]: TermVariabe thr2Thread3of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 19:12:53,829 WARN L315 ript$VariableManager]: TermVariabe thr2Thread3of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 19:12:53,829 WARN L315 ript$VariableManager]: TermVariabe thr2Thread3of5ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 19:12:53,830 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread3of5ForFork0_#t~nondet2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 19:12:53,830 WARN L315 ript$VariableManager]: TermVariabe thr2Thread3of5ForFork0_~k~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 19:12:53,830 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread3of5ForFork0_#t~nondet2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 19:12:53,830 WARN L315 ript$VariableManager]: TermVariabe thr2Thread3of5ForFork0_~k~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 19:12:53,830 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread3of5ForFork0_#t~nondet3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 19:12:53,830 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread3of5ForFork0_#t~nondet3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 19:12:53,830 WARN L315 ript$VariableManager]: TermVariabe thr2Thread3of5ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 19:12:53,831 WARN L315 ript$VariableManager]: TermVariabe thr2Thread3of5ForFork0_~k~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 19:12:53,831 WARN L315 ript$VariableManager]: TermVariabe thr2Thread3of5ForFork0_~k~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 19:12:53,831 WARN L315 ript$VariableManager]: TermVariabe thr2Thread3of5ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 19:12:53,831 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread2of5ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 19:12:53,831 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread2of5ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 19:12:53,831 WARN L315 ript$VariableManager]: TermVariabe thr2Thread2of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 19:12:53,832 WARN L315 ript$VariableManager]: TermVariabe thr2Thread2of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 19:12:53,832 WARN L315 ript$VariableManager]: TermVariabe thr2Thread2of5ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 19:12:53,832 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread2of5ForFork0_#t~nondet2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 19:12:53,832 WARN L315 ript$VariableManager]: TermVariabe thr2Thread2of5ForFork0_~k~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 19:12:53,832 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread2of5ForFork0_#t~nondet2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 19:12:53,832 WARN L315 ript$VariableManager]: TermVariabe thr2Thread2of5ForFork0_~k~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 19:12:53,832 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread2of5ForFork0_#t~nondet3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 19:12:53,833 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread2of5ForFork0_#t~nondet3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 19:12:53,833 WARN L315 ript$VariableManager]: TermVariabe thr2Thread2of5ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 19:12:53,833 WARN L315 ript$VariableManager]: TermVariabe thr2Thread2of5ForFork0_~k~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 19:12:53,833 WARN L315 ript$VariableManager]: TermVariabe thr2Thread2of5ForFork0_~k~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 19:12:53,833 WARN L315 ript$VariableManager]: TermVariabe thr2Thread2of5ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 19:12:53,833 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread1of5ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 19:12:53,834 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread1of5ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 19:12:53,834 WARN L315 ript$VariableManager]: TermVariabe thr2Thread1of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 19:12:53,834 WARN L315 ript$VariableManager]: TermVariabe thr2Thread1of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 19:12:53,834 WARN L315 ript$VariableManager]: TermVariabe thr2Thread1of5ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 19:12:53,834 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread1of5ForFork0_#t~nondet2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 19:12:53,834 WARN L315 ript$VariableManager]: TermVariabe thr2Thread1of5ForFork0_~k~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 19:12:53,834 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread1of5ForFork0_#t~nondet2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 19:12:53,834 WARN L315 ript$VariableManager]: TermVariabe thr2Thread1of5ForFork0_~k~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 19:12:53,835 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread1of5ForFork0_#t~nondet3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 19:12:53,835 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread1of5ForFork0_#t~nondet3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 19:12:53,835 WARN L315 ript$VariableManager]: TermVariabe thr2Thread1of5ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 19:12:53,835 WARN L315 ript$VariableManager]: TermVariabe thr2Thread1of5ForFork0_~k~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 19:12:53,835 WARN L315 ript$VariableManager]: TermVariabe thr2Thread1of5ForFork0_~k~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 19:12:53,835 WARN L315 ript$VariableManager]: TermVariabe thr2Thread1of5ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 19:12:53,836 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread2of5ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 19:12:53,836 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread2of5ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 19:12:53,836 WARN L315 ript$VariableManager]: TermVariabe thr1Thread2of5ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 19:12:53,836 WARN L315 ript$VariableManager]: TermVariabe thr1Thread2of5ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 19:12:53,836 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread2of5ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 19:12:53,836 WARN L315 ript$VariableManager]: TermVariabe thr1Thread2of5ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 19:12:53,837 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread2of5ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 19:12:53,837 WARN L315 ript$VariableManager]: TermVariabe thr1Thread2of5ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 19:12:53,837 WARN L315 ript$VariableManager]: TermVariabe thr1Thread2of5ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 19:12:53,837 WARN L315 ript$VariableManager]: TermVariabe thr1Thread2of5ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 19:12:53,837 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread5of5ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 19:12:53,837 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread5of5ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 19:12:53,838 WARN L315 ript$VariableManager]: TermVariabe thr1Thread5of5ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 19:12:53,838 WARN L315 ript$VariableManager]: TermVariabe thr1Thread5of5ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 19:12:53,838 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread5of5ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 19:12:53,838 WARN L315 ript$VariableManager]: TermVariabe thr1Thread5of5ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 19:12:53,838 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread5of5ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 19:12:53,838 WARN L315 ript$VariableManager]: TermVariabe thr1Thread5of5ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 19:12:53,838 WARN L315 ript$VariableManager]: TermVariabe thr1Thread5of5ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 19:12:53,838 WARN L315 ript$VariableManager]: TermVariabe thr1Thread5of5ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 19:12:53,839 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of5ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 19:12:53,839 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of5ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 19:12:53,839 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of5ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 19:12:53,839 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of5ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 19:12:53,839 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of5ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 19:12:53,839 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of5ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 19:12:53,839 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of5ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 19:12:53,840 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of5ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 19:12:53,840 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of5ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 19:12:53,840 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of5ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 19:12:53,840 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread3of5ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 19:12:53,840 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread3of5ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 19:12:53,840 WARN L315 ript$VariableManager]: TermVariabe thr1Thread3of5ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 19:12:53,840 WARN L315 ript$VariableManager]: TermVariabe thr1Thread3of5ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 19:12:53,840 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread3of5ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 19:12:53,841 WARN L315 ript$VariableManager]: TermVariabe thr1Thread3of5ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 19:12:53,841 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread3of5ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 19:12:53,841 WARN L315 ript$VariableManager]: TermVariabe thr1Thread3of5ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 19:12:53,841 WARN L315 ript$VariableManager]: TermVariabe thr1Thread3of5ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 19:12:53,841 WARN L315 ript$VariableManager]: TermVariabe thr1Thread3of5ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 19:12:53,841 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread4of5ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 19:12:53,841 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread4of5ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 19:12:53,842 WARN L315 ript$VariableManager]: TermVariabe thr1Thread4of5ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 19:12:53,842 WARN L315 ript$VariableManager]: TermVariabe thr1Thread4of5ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 19:12:53,842 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread4of5ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 19:12:53,842 WARN L315 ript$VariableManager]: TermVariabe thr1Thread4of5ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 19:12:53,842 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread4of5ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 19:12:53,842 WARN L315 ript$VariableManager]: TermVariabe thr1Thread4of5ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 19:12:53,842 WARN L315 ript$VariableManager]: TermVariabe thr1Thread4of5ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 19:12:53,842 WARN L315 ript$VariableManager]: TermVariabe thr1Thread4of5ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 19:12:53,843 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread1of5ForFork0_#t~nondet3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 19:12:53,843 WARN L315 ript$VariableManager]: TermVariabe thr2Thread1of5ForFork0_~k~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 19:12:53,843 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread1of5ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 19:12:53,843 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread1of5ForFork0_#t~nondet2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 19:12:53,843 WARN L315 ript$VariableManager]: TermVariabe thr2Thread1of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 19:12:53,843 WARN L315 ript$VariableManager]: TermVariabe thr2Thread1of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 19:12:53,844 WARN L315 ript$VariableManager]: TermVariabe thr2Thread1of5ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 19:12:53,844 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread1of5ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 19:12:53,845 WARN L315 ript$VariableManager]: TermVariabe thr2Thread2of5ForFork0_~k~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 19:12:53,845 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread2of5ForFork0_#t~nondet2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 19:12:53,845 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread2of5ForFork0_#t~nondet3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 19:12:53,845 WARN L315 ript$VariableManager]: TermVariabe thr2Thread2of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 19:12:53,846 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread2of5ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 19:12:53,846 WARN L315 ript$VariableManager]: TermVariabe thr2Thread2of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 19:12:53,846 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread2of5ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 19:12:53,846 WARN L315 ript$VariableManager]: TermVariabe thr2Thread2of5ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 19:12:53,847 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread3of5ForFork0_#t~nondet3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 19:12:53,847 WARN L315 ript$VariableManager]: TermVariabe thr2Thread3of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 19:12:53,847 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread3of5ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 19:12:53,847 WARN L315 ript$VariableManager]: TermVariabe thr2Thread3of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 19:12:53,847 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread3of5ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 19:12:53,848 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread3of5ForFork0_#t~nondet2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 19:12:53,848 WARN L315 ript$VariableManager]: TermVariabe thr2Thread3of5ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 19:12:53,848 WARN L315 ript$VariableManager]: TermVariabe thr2Thread3of5ForFork0_~k~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 19:12:53,849 WARN L315 ript$VariableManager]: TermVariabe thr2Thread4of5ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 19:12:53,849 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread4of5ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 19:12:53,849 WARN L315 ript$VariableManager]: TermVariabe thr2Thread4of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 19:12:53,849 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread4of5ForFork0_#t~nondet3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 19:12:53,849 WARN L315 ript$VariableManager]: TermVariabe thr2Thread4of5ForFork0_~k~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 19:12:53,850 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread4of5ForFork0_#t~nondet2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 19:12:53,850 WARN L315 ript$VariableManager]: TermVariabe thr2Thread4of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 19:12:53,850 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread4of5ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 19:12:53,851 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread5of5ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 19:12:53,851 WARN L315 ript$VariableManager]: TermVariabe thr2Thread5of5ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 19:12:53,851 WARN L315 ript$VariableManager]: TermVariabe thr2Thread5of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 19:12:53,851 WARN L315 ript$VariableManager]: TermVariabe thr2Thread5of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 19:12:53,852 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread5of5ForFork0_#t~nondet2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 19:12:53,852 WARN L315 ript$VariableManager]: TermVariabe thr2Thread5of5ForFork0_~k~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 19:12:53,852 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread5of5ForFork0_#t~nondet3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 19:12:53,852 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread5of5ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 19:12:53,853 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of5ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 19:12:53,853 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of5ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 19:12:53,853 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of5ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 19:12:53,854 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of5ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 19:12:53,854 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of5ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 19:12:53,854 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of5ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 19:12:53,860 WARN L315 ript$VariableManager]: TermVariabe thr1Thread2of5ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 19:12:53,860 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread2of5ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 19:12:53,860 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread2of5ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 19:12:53,861 WARN L315 ript$VariableManager]: TermVariabe thr1Thread2of5ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 19:12:53,861 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread2of5ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 19:12:53,861 WARN L315 ript$VariableManager]: TermVariabe thr1Thread2of5ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 19:12:53,862 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread3of5ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 19:12:53,862 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread3of5ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 19:12:53,862 WARN L315 ript$VariableManager]: TermVariabe thr1Thread3of5ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 19:12:53,862 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread3of5ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 19:12:53,863 WARN L315 ript$VariableManager]: TermVariabe thr1Thread3of5ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 19:12:53,863 WARN L315 ript$VariableManager]: TermVariabe thr1Thread3of5ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 19:12:53,864 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread4of5ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 19:12:53,864 WARN L315 ript$VariableManager]: TermVariabe thr1Thread4of5ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 19:12:53,864 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread4of5ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 19:12:53,864 WARN L315 ript$VariableManager]: TermVariabe thr1Thread4of5ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 19:12:53,864 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread4of5ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 19:12:53,865 WARN L315 ript$VariableManager]: TermVariabe thr1Thread4of5ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 19:12:53,866 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread5of5ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 19:12:53,866 WARN L315 ript$VariableManager]: TermVariabe thr1Thread5of5ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 19:12:53,866 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread5of5ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 19:12:53,866 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread5of5ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 19:12:53,866 WARN L315 ript$VariableManager]: TermVariabe thr1Thread5of5ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 19:12:53,866 WARN L315 ript$VariableManager]: TermVariabe thr1Thread5of5ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 19:12:53,868 INFO L249 AbstractCegarLoop]: Starting to check reachability of 8 error locations. [2019-12-27 19:12:53,868 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-12-27 19:12:53,868 INFO L374 AbstractCegarLoop]: Hoare is true [2019-12-27 19:12:53,868 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-12-27 19:12:53,868 INFO L376 AbstractCegarLoop]: Backedges is MCR [2019-12-27 19:12:53,868 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-12-27 19:12:53,868 INFO L378 AbstractCegarLoop]: Difference is false [2019-12-27 19:12:53,869 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-12-27 19:12:53,869 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-12-27 19:12:53,870 INFO L152 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 173 places, 162 transitions [2019-12-27 19:12:53,871 INFO L68 FinitePrefix]: Start finitePrefix. Operand has 173 places, 162 transitions [2019-12-27 19:12:53,900 INFO L132 PetriNetUnfolder]: 12/192 cut-off events. [2019-12-27 19:12:53,901 INFO L133 PetriNetUnfolder]: For 30/30 co-relation queries the response was YES. [2019-12-27 19:12:53,906 INFO L76 FinitePrefix]: Finished finitePrefix Result has 230 conditions, 192 events. 12/192 cut-off events. For 30/30 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 421 event pairs. 0/173 useless extension candidates. Maximal degree in co-relation 219. Up to 12 conditions per place. [2019-12-27 19:12:53,919 INFO L68 FinitePrefix]: Start finitePrefix. Operand has 173 places, 162 transitions [2019-12-27 19:12:53,948 INFO L132 PetriNetUnfolder]: 12/192 cut-off events. [2019-12-27 19:12:53,948 INFO L133 PetriNetUnfolder]: For 30/30 co-relation queries the response was YES. [2019-12-27 19:12:53,953 INFO L76 FinitePrefix]: Finished finitePrefix Result has 230 conditions, 192 events. 12/192 cut-off events. For 30/30 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 421 event pairs. 0/173 useless extension candidates. Maximal degree in co-relation 219. Up to 12 conditions per place. [2019-12-27 19:12:53,967 INFO L158 etLargeBlockEncoding]: Number of co-enabled transitions 7304 [2019-12-27 19:12:53,967 INFO L170 etLargeBlockEncoding]: Semantic Check. [2019-12-27 19:12:57,063 WARN L192 SmtUtils]: Spent 237.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 81 [2019-12-27 19:12:57,441 WARN L192 SmtUtils]: Spent 285.00 ms on a formula simplification. DAG size of input: 104 DAG size of output: 100 [2019-12-27 19:12:57,570 WARN L192 SmtUtils]: Spent 127.00 ms on a formula simplification that was a NOOP. DAG size: 92 [2019-12-27 19:12:57,577 INFO L206 etLargeBlockEncoding]: Checked pairs total: 14503 [2019-12-27 19:12:57,577 INFO L214 etLargeBlockEncoding]: Total number of compositions: 123 [2019-12-27 19:12:57,578 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 66 places, 60 transitions [2019-12-27 19:13:53,213 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 186623 states. [2019-12-27 19:13:53,213 INFO L276 IsEmpty]: Start isEmpty. Operand 186623 states. [2019-12-27 19:13:53,213 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2019-12-27 19:13:53,213 INFO L403 BasicCegarLoop]: Found error trace [2019-12-27 19:13:53,213 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1] [2019-12-27 19:13:53,214 INFO L410 AbstractCegarLoop]: === Iteration 1 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-27 19:13:53,214 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-27 19:13:53,214 INFO L82 PathProgramCache]: Analyzing trace with hash 1258960, now seen corresponding path program 1 times [2019-12-27 19:13:53,214 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-27 19:13:53,214 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [904202555] [2019-12-27 19:13:53,214 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-27 19:13:53,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-27 19:13:53,244 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 19:13:53,245 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [904202555] [2019-12-27 19:13:53,245 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-27 19:13:53,245 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2019-12-27 19:13:53,245 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [594568939] [2019-12-27 19:13:53,245 INFO L132 pAbStrategyModuleMcr]: Constructing automaton for MCR equivalence class. [2019-12-27 19:13:53,246 INFO L197 pAbStrategyModuleMcr]: Started intersection. [2019-12-27 19:13:53,246 INFO L208 pAbStrategyModuleMcr]: Finished intersection with 4 states and 3 transitions. [2019-12-27 19:13:53,246 INFO L219 pAbStrategyModuleMcr]: Constructing interpolant automaton by labelling MCR automaton. [2019-12-27 19:13:53,246 INFO L288 pAbStrategyModuleMcr]: Construction finished. Needed to calculate wp 0 times. [2019-12-27 19:13:53,246 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-12-27 19:13:53,246 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-27 19:13:53,247 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-12-27 19:13:53,247 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-27 19:13:53,247 INFO L87 Difference]: Start difference. First operand 186623 states. Second operand 3 states. [2019-12-27 19:13:59,981 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-27 19:13:59,982 INFO L93 Difference]: Finished difference Result 242286 states and 1521279 transitions. [2019-12-27 19:13:59,982 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-27 19:13:59,982 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 3 [2019-12-27 19:13:59,982 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-27 19:14:01,939 INFO L225 Difference]: With dead ends: 242286 [2019-12-27 19:14:01,939 INFO L226 Difference]: Without dead ends: 226558 [2019-12-27 19:14:01,939 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-27 19:14:03,533 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 226558 states. [2019-12-27 19:14:23,531 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 226558 to 198682. [2019-12-27 19:14:23,532 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 198682 states. [2019-12-27 19:14:26,356 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 198682 states to 198682 states and 1265854 transitions. [2019-12-27 19:14:26,357 INFO L78 Accepts]: Start accepts. Automaton has 198682 states and 1265854 transitions. Word has length 3 [2019-12-27 19:14:26,357 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-27 19:14:26,357 INFO L462 AbstractCegarLoop]: Abstraction has 198682 states and 1265854 transitions. [2019-12-27 19:14:26,357 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-12-27 19:14:26,357 INFO L276 IsEmpty]: Start isEmpty. Operand 198682 states and 1265854 transitions. [2019-12-27 19:14:26,357 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2019-12-27 19:14:26,357 INFO L403 BasicCegarLoop]: Found error trace [2019-12-27 19:14:26,358 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-27 19:14:26,358 INFO L410 AbstractCegarLoop]: === Iteration 2 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-27 19:14:26,358 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-27 19:14:26,358 INFO L82 PathProgramCache]: Analyzing trace with hash 540627390, now seen corresponding path program 1 times [2019-12-27 19:14:26,358 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-27 19:14:26,359 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2076610461] [2019-12-27 19:14:26,359 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-27 19:14:26,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-27 19:14:26,396 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 19:14:26,396 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2076610461] [2019-12-27 19:14:26,396 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-27 19:14:26,396 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-12-27 19:14:26,396 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [839369052] [2019-12-27 19:14:26,397 INFO L132 pAbStrategyModuleMcr]: Constructing automaton for MCR equivalence class. [2019-12-27 19:14:26,397 INFO L197 pAbStrategyModuleMcr]: Started intersection. [2019-12-27 19:14:26,398 INFO L208 pAbStrategyModuleMcr]: Finished intersection with 11 states and 10 transitions. [2019-12-27 19:14:26,398 INFO L219 pAbStrategyModuleMcr]: Constructing interpolant automaton by labelling MCR automaton. [2019-12-27 19:14:26,398 INFO L288 pAbStrategyModuleMcr]: Construction finished. Needed to calculate wp 0 times. [2019-12-27 19:14:26,398 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-12-27 19:14:26,399 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-27 19:14:26,399 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-12-27 19:14:26,399 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2019-12-27 19:14:26,399 INFO L87 Difference]: Start difference. First operand 198682 states and 1265854 transitions. Second operand 5 states. [2019-12-27 19:14:40,170 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-27 19:14:40,171 INFO L93 Difference]: Finished difference Result 405850 states and 2493584 transitions. [2019-12-27 19:14:40,171 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-12-27 19:14:40,171 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 10 [2019-12-27 19:14:40,171 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-27 19:14:50,870 INFO L225 Difference]: With dead ends: 405850 [2019-12-27 19:14:50,870 INFO L226 Difference]: Without dead ends: 405418 [2019-12-27 19:14:50,870 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2019-12-27 19:14:53,489 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 405418 states. [2019-12-27 19:15:00,868 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 405418 to 220810. [2019-12-27 19:15:00,868 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 220810 states. [2019-12-27 19:15:14,409 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 220810 states to 220810 states and 1422135 transitions. [2019-12-27 19:15:14,410 INFO L78 Accepts]: Start accepts. Automaton has 220810 states and 1422135 transitions. Word has length 10 [2019-12-27 19:15:14,410 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-27 19:15:14,410 INFO L462 AbstractCegarLoop]: Abstraction has 220810 states and 1422135 transitions. [2019-12-27 19:15:14,410 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-12-27 19:15:14,410 INFO L276 IsEmpty]: Start isEmpty. Operand 220810 states and 1422135 transitions. [2019-12-27 19:15:14,411 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2019-12-27 19:15:14,411 INFO L403 BasicCegarLoop]: Found error trace [2019-12-27 19:15:14,411 INFO L411 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-27 19:15:14,411 INFO L410 AbstractCegarLoop]: === Iteration 3 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-27 19:15:14,412 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-27 19:15:14,412 INFO L82 PathProgramCache]: Analyzing trace with hash 1439547760, now seen corresponding path program 1 times [2019-12-27 19:15:14,412 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-27 19:15:14,412 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1222693591] [2019-12-27 19:15:14,412 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-27 19:15:14,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-27 19:15:14,444 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 19:15:14,445 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1222693591] [2019-12-27 19:15:14,445 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-27 19:15:14,445 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-12-27 19:15:14,445 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1858585424] [2019-12-27 19:15:14,445 INFO L132 pAbStrategyModuleMcr]: Constructing automaton for MCR equivalence class. [2019-12-27 19:15:14,446 INFO L197 pAbStrategyModuleMcr]: Started intersection. [2019-12-27 19:15:14,448 INFO L208 pAbStrategyModuleMcr]: Finished intersection with 15 states and 14 transitions. [2019-12-27 19:15:14,448 INFO L219 pAbStrategyModuleMcr]: Constructing interpolant automaton by labelling MCR automaton. [2019-12-27 19:15:14,448 INFO L288 pAbStrategyModuleMcr]: Construction finished. Needed to calculate wp 0 times. [2019-12-27 19:15:14,448 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-12-27 19:15:14,449 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-27 19:15:14,449 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-12-27 19:15:14,449 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2019-12-27 19:15:14,449 INFO L87 Difference]: Start difference. First operand 220810 states and 1422135 transitions. Second operand 5 states. Received shutdown request... [2019-12-27 19:15:26,613 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-12-27 19:15:26,613 WARN L527 AbstractCegarLoop]: Verification canceled [2019-12-27 19:15:26,616 WARN L227 ceAbstractionStarter]: Timeout [2019-12-27 19:15:26,617 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 27.12 07:15:26 BasicIcfg [2019-12-27 19:15:26,617 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-12-27 19:15:26,618 INFO L168 Benchmark]: Toolchain (without parser) took 197986.23 ms. Allocated memory was 138.9 MB in the beginning and 5.4 GB in the end (delta: 5.3 GB). Free memory was 102.4 MB in the beginning and 2.8 GB in the end (delta: -2.7 GB). Peak memory consumption was 6.2 GB. Max. memory is 7.1 GB. [2019-12-27 19:15:26,618 INFO L168 Benchmark]: CDTParser took 0.21 ms. Allocated memory is still 138.9 MB. Free memory was 122.1 MB in the beginning and 121.9 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. [2019-12-27 19:15:26,619 INFO L168 Benchmark]: CACSL2BoogieTranslator took 635.78 ms. Allocated memory was 138.9 MB in the beginning and 203.4 MB in the end (delta: 64.5 MB). Free memory was 102.0 MB in the beginning and 162.2 MB in the end (delta: -60.2 MB). Peak memory consumption was 26.3 MB. Max. memory is 7.1 GB. [2019-12-27 19:15:26,619 INFO L168 Benchmark]: Boogie Procedure Inliner took 56.58 ms. Allocated memory is still 203.4 MB. Free memory was 162.2 MB in the beginning and 160.2 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 7.1 GB. [2019-12-27 19:15:26,620 INFO L168 Benchmark]: Boogie Preprocessor took 38.91 ms. Allocated memory is still 203.4 MB. Free memory was 160.2 MB in the beginning and 158.8 MB in the end (delta: 1.4 MB). Peak memory consumption was 1.4 MB. Max. memory is 7.1 GB. [2019-12-27 19:15:26,620 INFO L168 Benchmark]: RCFGBuilder took 453.46 ms. Allocated memory is still 203.4 MB. Free memory was 158.2 MB in the beginning and 136.6 MB in the end (delta: 21.6 MB). Peak memory consumption was 21.6 MB. Max. memory is 7.1 GB. [2019-12-27 19:15:26,621 INFO L168 Benchmark]: TraceAbstraction took 196796.87 ms. Allocated memory was 203.4 MB in the beginning and 5.4 GB in the end (delta: 5.2 GB). Free memory was 136.0 MB in the beginning and 2.8 GB in the end (delta: -2.7 GB). Peak memory consumption was 6.2 GB. Max. memory is 7.1 GB. [2019-12-27 19:15:26,623 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21 ms. Allocated memory is still 138.9 MB. Free memory was 122.1 MB in the beginning and 121.9 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 635.78 ms. Allocated memory was 138.9 MB in the beginning and 203.4 MB in the end (delta: 64.5 MB). Free memory was 102.0 MB in the beginning and 162.2 MB in the end (delta: -60.2 MB). Peak memory consumption was 26.3 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 56.58 ms. Allocated memory is still 203.4 MB. Free memory was 162.2 MB in the beginning and 160.2 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 38.91 ms. Allocated memory is still 203.4 MB. Free memory was 160.2 MB in the beginning and 158.8 MB in the end (delta: 1.4 MB). Peak memory consumption was 1.4 MB. Max. memory is 7.1 GB. * RCFGBuilder took 453.46 ms. Allocated memory is still 203.4 MB. Free memory was 158.2 MB in the beginning and 136.6 MB in the end (delta: 21.6 MB). Peak memory consumption was 21.6 MB. Max. memory is 7.1 GB. * TraceAbstraction took 196796.87 ms. Allocated memory was 203.4 MB in the beginning and 5.4 GB in the end (delta: 5.2 GB). Free memory was 136.0 MB in the beginning and 2.8 GB in the end (delta: -2.7 GB). Peak memory consumption was 6.2 GB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks LbeTime: 2.5s, 69 ProgramPointsBefore, 15 ProgramPointsAfterwards, 66 TransitionsBefore, 12 TransitionsAfterwards, 992 CoEnabledTransitionPairs, 7 FixpointIterations, 22 TrivialSequentialCompositions, 31 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 4 ConcurrentYvCompositions, 3 ChoiceCompositions, 519 VarBasedMoverChecksPositive, 3 VarBasedMoverChecksNegative, 0 SemBasedMoverChecksPositive, 4 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.0s, 0 MoverChecksTotal, 729 CheckedPairsTotal, 57 TotalNumberOfCompositions - StatisticsResult: PetriNetLargeBlockEncoding benchmarks LbeTime: 2.5s, 95 ProgramPointsBefore, 32 ProgramPointsAfterwards, 90 TransitionsBefore, 29 TransitionsAfterwards, 2024 CoEnabledTransitionPairs, 7 FixpointIterations, 31 TrivialSequentialCompositions, 31 ConcurrentSequentialCompositions, 1 TrivialYvCompositions, 6 ConcurrentYvCompositions, 3 ChoiceCompositions, 1062 VarBasedMoverChecksPositive, 24 VarBasedMoverChecksNegative, 3 SemBasedMoverChecksPositive, 27 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.2s, 0 MoverChecksTotal, 2838 CheckedPairsTotal, 69 TotalNumberOfCompositions - StatisticsResult: PetriNetLargeBlockEncoding benchmarks LbeTime: 2.5s, 121 ProgramPointsBefore, 44 ProgramPointsAfterwards, 114 TransitionsBefore, 40 TransitionsAfterwards, 3420 CoEnabledTransitionPairs, 7 FixpointIterations, 39 TrivialSequentialCompositions, 43 ConcurrentSequentialCompositions, 2 TrivialYvCompositions, 5 ConcurrentYvCompositions, 4 ChoiceCompositions, 1774 VarBasedMoverChecksPositive, 38 VarBasedMoverChecksNegative, 8 SemBasedMoverChecksPositive, 41 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.2s, 0 MoverChecksTotal, 6734 CheckedPairsTotal, 89 TotalNumberOfCompositions - StatisticsResult: PetriNetLargeBlockEncoding benchmarks LbeTime: 3.2s, 147 ProgramPointsBefore, 54 ProgramPointsAfterwards, 138 TransitionsBefore, 49 TransitionsAfterwards, 5180 CoEnabledTransitionPairs, 7 FixpointIterations, 53 TrivialSequentialCompositions, 47 ConcurrentSequentialCompositions, 5 TrivialYvCompositions, 5 ConcurrentYvCompositions, 5 ChoiceCompositions, 2790 VarBasedMoverChecksPositive, 73 VarBasedMoverChecksNegative, 31 SemBasedMoverChecksPositive, 66 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.4s, 0 MoverChecksTotal, 10723 CheckedPairsTotal, 110 TotalNumberOfCompositions - StatisticsResult: PetriNetLargeBlockEncoding benchmarks LbeTime: 3.7s, 173 ProgramPointsBefore, 66 ProgramPointsAfterwards, 162 TransitionsBefore, 60 TransitionsAfterwards, 7304 CoEnabledTransitionPairs, 7 FixpointIterations, 58 TrivialSequentialCompositions, 54 ConcurrentSequentialCompositions, 4 TrivialYvCompositions, 7 ConcurrentYvCompositions, 6 ChoiceCompositions, 3552 VarBasedMoverChecksPositive, 87 VarBasedMoverChecksNegative, 55 SemBasedMoverChecksPositive, 62 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.4s, 0 MoverChecksTotal, 14503 CheckedPairsTotal, 123 TotalNumberOfCompositions - TimeoutResultAtElement [Line: 675]: Timeout (TraceAbstraction) Unable to prove that call of __VERIFIER_error() unreachable (line 675). Cancelled while BasicCegarLoop was constructing difference of abstraction (220810states) and FLOYD_HOARE automaton (currently 6 states, 5 states before enhancement),while ReachableStatesComputation was computing reachable states (225525 states constructedinput type IntersectNwa). - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 63 locations, 1 error locations. Result: TIMEOUT, OverallTime: 152.7s, OverallIterations: 3, TraceHistogramMax: 2, AutomataDifference: 45.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 137 SDtfs, 404 SDslu, 216 SDs, 0 SdLazy, 265 SolverSat, 12 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 11 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=220810occurred in iteration=2, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 47.9s AutomataMinimizationTime, 2 MinimizatonAttempts, 212484 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 27 NumberOfCodeBlocks, 27 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 24 ConstructedInterpolants, 0 QuantifiedInterpolants, 1734 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 3 InterpolantComputations, 3 PerfectInterpolantSequences, 2/2 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown