/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-NoLbe-McrStrategy.epf -i ../../../trunk/examples/svcomp/pthread/stack_longest-1.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-b981219 [2020-04-18 16:09:26,492 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-04-18 16:09:26,495 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-04-18 16:09:26,507 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-04-18 16:09:26,507 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-04-18 16:09:26,508 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-04-18 16:09:26,510 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-04-18 16:09:26,511 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-04-18 16:09:26,514 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-04-18 16:09:26,514 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-04-18 16:09:26,515 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-04-18 16:09:26,516 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-04-18 16:09:26,517 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-04-18 16:09:26,518 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-04-18 16:09:26,519 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-04-18 16:09:26,520 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-04-18 16:09:26,521 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-04-18 16:09:26,522 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-04-18 16:09:26,524 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-04-18 16:09:26,526 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-04-18 16:09:26,527 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-04-18 16:09:26,529 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-04-18 16:09:26,530 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-04-18 16:09:26,531 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-04-18 16:09:26,533 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-04-18 16:09:26,534 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-04-18 16:09:26,534 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-04-18 16:09:26,535 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-04-18 16:09:26,536 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-04-18 16:09:26,537 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-04-18 16:09:26,537 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-04-18 16:09:26,538 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-04-18 16:09:26,539 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-04-18 16:09:26,539 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-04-18 16:09:26,541 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-04-18 16:09:26,541 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-04-18 16:09:26,542 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-04-18 16:09:26,542 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-04-18 16:09:26,542 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-04-18 16:09:26,543 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-04-18 16:09:26,544 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-04-18 16:09:26,544 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-NoLbe-McrStrategy.epf [2020-04-18 16:09:26,568 INFO L113 SettingsManager]: Loading preferences was successful [2020-04-18 16:09:26,568 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-04-18 16:09:26,570 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-04-18 16:09:26,570 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-04-18 16:09:26,570 INFO L138 SettingsManager]: * Use SBE=true [2020-04-18 16:09:26,570 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-04-18 16:09:26,570 INFO L138 SettingsManager]: * sizeof long=4 [2020-04-18 16:09:26,571 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-04-18 16:09:26,571 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-04-18 16:09:26,571 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-04-18 16:09:26,571 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-04-18 16:09:26,571 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-04-18 16:09:26,572 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-04-18 16:09:26,572 INFO L138 SettingsManager]: * sizeof long double=12 [2020-04-18 16:09:26,573 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-04-18 16:09:26,573 INFO L138 SettingsManager]: * Use constant arrays=true [2020-04-18 16:09:26,573 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-04-18 16:09:26,574 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-04-18 16:09:26,574 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-04-18 16:09:26,574 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-04-18 16:09:26,575 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-04-18 16:09:26,575 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-04-18 16:09:26,575 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-04-18 16:09:26,575 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-04-18 16:09:26,576 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-04-18 16:09:26,576 INFO L138 SettingsManager]: * Trace refinement strategy=MCR [2020-04-18 16:09:26,576 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-04-18 16:09:26,576 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2020-04-18 16:09:26,576 INFO L138 SettingsManager]: * Trace refinement strategy used in MCR=CAMEL [2020-04-18 16:09:26,577 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-04-18 16:09:26,577 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-04-18 16:09:26,843 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-04-18 16:09:26,859 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-04-18 16:09:26,862 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-04-18 16:09:26,863 INFO L271 PluginConnector]: Initializing CDTParser... [2020-04-18 16:09:26,863 INFO L275 PluginConnector]: CDTParser initialized [2020-04-18 16:09:26,864 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread/stack_longest-1.i [2020-04-18 16:09:26,939 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ab7799a3b/fd18745d467e4bb1beb3bfe57610edd5/FLAG1602da49a [2020-04-18 16:09:27,518 INFO L306 CDTParser]: Found 1 translation units. [2020-04-18 16:09:27,519 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread/stack_longest-1.i [2020-04-18 16:09:27,535 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ab7799a3b/fd18745d467e4bb1beb3bfe57610edd5/FLAG1602da49a [2020-04-18 16:09:27,847 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ab7799a3b/fd18745d467e4bb1beb3bfe57610edd5 [2020-04-18 16:09:27,856 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-04-18 16:09:27,873 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2020-04-18 16:09:27,874 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-04-18 16:09:27,874 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-04-18 16:09:27,878 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-04-18 16:09:27,879 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.04 04:09:27" (1/1) ... [2020-04-18 16:09:27,882 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3733a1ba and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 04:09:27, skipping insertion in model container [2020-04-18 16:09:27,882 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.04 04:09:27" (1/1) ... [2020-04-18 16:09:27,892 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-04-18 16:09:27,938 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-04-18 16:09:28,513 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-04-18 16:09:28,534 INFO L203 MainTranslator]: Completed pre-run [2020-04-18 16:09:28,614 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-04-18 16:09:28,857 INFO L208 MainTranslator]: Completed translation [2020-04-18 16:09:28,858 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 04:09:28 WrapperNode [2020-04-18 16:09:28,858 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-04-18 16:09:28,859 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-04-18 16:09:28,860 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-04-18 16:09:28,860 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-04-18 16:09:28,871 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 04:09:28" (1/1) ... [2020-04-18 16:09:28,922 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 04:09:28" (1/1) ... [2020-04-18 16:09:28,983 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-04-18 16:09:28,984 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-04-18 16:09:28,984 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-04-18 16:09:28,984 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-04-18 16:09:28,996 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 04:09:28" (1/1) ... [2020-04-18 16:09:28,996 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 04:09:28" (1/1) ... [2020-04-18 16:09:29,000 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 04:09:28" (1/1) ... [2020-04-18 16:09:29,000 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 04:09:28" (1/1) ... [2020-04-18 16:09:29,009 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 04:09:28" (1/1) ... [2020-04-18 16:09:29,016 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 04:09:28" (1/1) ... [2020-04-18 16:09:29,025 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 04:09:28" (1/1) ... [2020-04-18 16:09:29,032 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-04-18 16:09:29,038 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-04-18 16:09:29,038 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-04-18 16:09:29,038 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-04-18 16:09:29,039 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 04:09:28" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-04-18 16:09:29,102 INFO L130 BoogieDeclarations]: Found specification of procedure t1 [2020-04-18 16:09:29,103 INFO L138 BoogieDeclarations]: Found implementation of procedure t1 [2020-04-18 16:09:29,103 INFO L130 BoogieDeclarations]: Found specification of procedure t2 [2020-04-18 16:09:29,103 INFO L138 BoogieDeclarations]: Found implementation of procedure t2 [2020-04-18 16:09:29,103 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-04-18 16:09:29,104 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-04-18 16:09:29,104 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-04-18 16:09:29,104 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-04-18 16:09:29,104 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2020-04-18 16:09:29,105 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-04-18 16:09:29,105 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-04-18 16:09:29,105 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-04-18 16:09:29,107 WARN L205 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2020-04-18 16:09:29,699 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-04-18 16:09:29,699 INFO L295 CfgBuilder]: Removed 26 assume(true) statements. [2020-04-18 16:09:29,703 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.04 04:09:29 BoogieIcfgContainer [2020-04-18 16:09:29,704 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-04-18 16:09:29,705 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-04-18 16:09:29,705 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-04-18 16:09:29,709 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-04-18 16:09:29,709 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.04 04:09:27" (1/3) ... [2020-04-18 16:09:29,710 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2278b77c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.04 04:09:29, skipping insertion in model container [2020-04-18 16:09:29,710 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 04:09:28" (2/3) ... [2020-04-18 16:09:29,711 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2278b77c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.04 04:09:29, skipping insertion in model container [2020-04-18 16:09:29,711 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.04 04:09:29" (3/3) ... [2020-04-18 16:09:29,713 INFO L109 eAbstractionObserver]: Analyzing ICFG stack_longest-1.i [2020-04-18 16:09:29,725 WARN L146 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2020-04-18 16:09:29,725 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-04-18 16:09:29,733 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 2 error locations. [2020-04-18 16:09:29,735 INFO L340 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2020-04-18 16:09:29,791 WARN L315 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:09:29,791 WARN L315 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:09:29,791 WARN L315 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:09:29,791 WARN L315 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:09:29,792 WARN L315 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:09:29,792 WARN L315 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~tmp~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:09:29,792 WARN L315 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:09:29,793 WARN L315 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:09:29,793 WARN L315 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:09:29,793 WARN L315 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:09:29,793 WARN L315 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:09:29,793 WARN L315 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~nondet42| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:09:29,794 WARN L315 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~nondet42| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:09:29,794 WARN L315 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~nondet43| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:09:29,794 WARN L315 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~tmp~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:09:29,794 WARN L315 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~nondet43| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:09:29,794 WARN L315 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~tmp~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:09:29,795 WARN L315 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:09:29,795 WARN L315 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:09:29,795 WARN L315 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:09:29,795 WARN L315 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:09:29,796 WARN L315 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:09:29,796 WARN L315 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:09:29,796 WARN L315 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~tmp~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:09:29,796 WARN L315 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_#in~stack.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:09:29,796 WARN L315 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_#in~stack.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:09:29,796 WARN L315 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_#in~x| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:09:29,797 WARN L315 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:09:29,797 WARN L315 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_push_~stack.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:09:29,798 WARN L315 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_#t~nondet33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:09:29,798 WARN L315 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_push_~x not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:09:29,798 WARN L315 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_#t~ret35| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:09:29,798 WARN L315 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_push_~stack.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:09:29,798 WARN L315 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_#in~stack.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:09:29,798 WARN L315 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_#in~stack.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:09:29,799 WARN L315 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_push_~stack.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:09:29,800 WARN L315 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_push_~stack.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:09:29,802 WARN L315 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_#in~x| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:09:29,802 WARN L315 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_push_~x not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:09:29,803 WARN L315 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_#t~nondet33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:09:29,803 WARN L315 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_get_top_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:09:29,804 WARN L315 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:09:29,804 WARN L315 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_get_top_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:09:29,805 WARN L315 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:09:29,805 WARN L315 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~ret44| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:09:29,805 WARN L315 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_get_top_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:09:29,805 WARN L315 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_#t~ret35| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:09:29,805 WARN L315 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~ret44| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:09:29,806 WARN L315 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_#t~ret35| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:09:29,806 WARN L315 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~ret44| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:09:29,806 WARN L315 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~ret44| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:09:29,806 WARN L315 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_push_~stack.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:09:29,806 WARN L315 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_push_~x not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:09:29,807 WARN L315 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_push_~stack.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:09:29,807 WARN L315 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_#t~ret35| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:09:29,807 WARN L315 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~ret44| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:09:29,807 WARN L315 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~ret44| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:09:29,808 WARN L315 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_#t~ret35| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:09:29,808 WARN L315 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_inc_top_#t~post30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:09:29,808 WARN L315 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_inc_top_#t~post30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:09:29,808 WARN L315 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:09:29,809 WARN L315 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~post41| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:09:29,809 WARN L315 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_inc_top_#t~post30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:09:29,809 WARN L315 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~post41| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:09:29,809 WARN L315 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:09:29,810 WARN L315 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_inc_top_#t~post30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:09:29,811 WARN L315 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~post41| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:09:29,811 WARN L315 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:09:29,816 WARN L315 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:09:29,816 WARN L315 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:09:29,816 WARN L315 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:09:29,817 WARN L315 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:09:29,817 WARN L315 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:09:29,817 WARN L315 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:09:29,818 WARN L315 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:09:29,818 WARN L315 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:09:29,819 WARN L315 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:09:29,819 WARN L315 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:09:29,819 WARN L315 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#t~nondet46| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:09:29,820 WARN L315 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#t~nondet46| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:09:29,821 WARN L315 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#in~stack.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:09:29,821 WARN L315 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#in~stack.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:09:29,821 WARN L315 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:09:29,822 WARN L315 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:09:29,822 WARN L315 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#t~post45| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:09:29,823 WARN L315 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#t~mem40| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:09:29,823 WARN L315 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#t~nondet37| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:09:29,823 WARN L315 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#t~ret36| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:09:29,824 WARN L315 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_pop_~stack.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:09:29,824 WARN L315 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#t~ret39| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:09:29,824 WARN L315 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_pop_~stack.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:09:29,824 WARN L315 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#t~post45| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:09:29,824 WARN L315 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:09:29,825 WARN L315 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#in~stack.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:09:29,825 WARN L315 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#in~stack.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:09:29,825 WARN L315 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_pop_~stack.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:09:29,825 WARN L315 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_pop_~stack.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:09:29,826 WARN L315 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#t~post45| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:09:29,826 WARN L315 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_get_top_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:09:29,826 WARN L315 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_get_top_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:09:29,827 WARN L315 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_get_top_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:09:29,828 WARN L315 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#t~ret36| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:09:29,831 WARN L315 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#t~ret36| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:09:29,831 WARN L315 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#t~ret36| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:09:29,832 WARN L315 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#t~ret36| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:09:29,832 WARN L315 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#t~ret36| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:09:29,839 WARN L315 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#t~ret36| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:09:29,839 WARN L315 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#t~nondet37| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:09:29,839 WARN L315 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_dec_top_#t~post31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:09:29,839 WARN L315 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:09:29,840 WARN L315 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_dec_top_#t~post31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:09:29,840 WARN L315 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:09:29,840 WARN L315 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#t~ret47| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:09:29,840 WARN L315 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_dec_top_#t~post31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:09:29,841 WARN L315 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#t~ret47| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:09:29,841 WARN L315 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_dec_top_#t~post31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:09:29,842 WARN L315 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#t~ret47| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:09:29,842 WARN L315 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#t~ret47| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:09:29,842 WARN L315 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_get_top_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:09:29,843 WARN L315 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#t~ret47| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:09:29,843 WARN L315 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#t~ret47| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:09:29,843 WARN L315 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_get_top_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:09:29,843 WARN L315 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_get_top_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:09:29,843 WARN L315 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#t~ret39| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:09:29,844 WARN L315 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#t~ret39| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:09:29,844 WARN L315 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_pop_~stack.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:09:29,844 WARN L315 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#t~ret39| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:09:29,844 WARN L315 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_pop_~stack.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:09:29,844 WARN L315 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#t~mem40| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:09:29,845 WARN L315 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#t~mem40| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:09:29,845 WARN L315 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:09:29,847 WARN L315 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#t~mem40| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:09:29,848 WARN L315 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#t~ret39| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:09:29,853 WARN L315 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_#in~x| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:09:29,854 WARN L315 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~ret44| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:09:29,854 WARN L315 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:09:29,854 WARN L315 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_inc_top_#t~post30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:09:29,854 WARN L315 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:09:29,855 WARN L315 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_push_~stack.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:09:29,855 WARN L315 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_#t~ret35| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:09:29,855 WARN L315 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:09:29,855 WARN L315 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:09:29,856 WARN L315 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_#t~nondet33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:09:29,856 WARN L315 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_push_~stack.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:09:29,856 WARN L315 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:09:29,856 WARN L315 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~tmp~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:09:29,856 WARN L315 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_#in~stack.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:09:29,857 WARN L315 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_push_~x not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:09:29,857 WARN L315 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:09:29,857 WARN L315 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~post41| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:09:29,857 WARN L315 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_get_top_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:09:29,857 WARN L315 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:09:29,858 WARN L315 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:09:29,858 WARN L315 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~nondet42| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:09:29,858 WARN L315 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_#in~stack.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:09:29,859 WARN L315 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~nondet43| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:09:29,870 WARN L315 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#t~nondet46| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:09:29,871 WARN L315 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#t~ret39| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:09:29,871 WARN L315 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_pop_~stack.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:09:29,871 WARN L315 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#t~ret47| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:09:29,871 WARN L315 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:09:29,871 WARN L315 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:09:29,871 WARN L315 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:09:29,872 WARN L315 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#t~post45| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:09:29,872 WARN L315 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_dec_top_#t~post31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:09:29,872 WARN L315 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#in~stack.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:09:29,872 WARN L315 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#t~ret36| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:09:29,872 WARN L315 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_get_top_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:09:29,873 WARN L315 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:09:29,873 WARN L315 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#t~mem40| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:09:29,875 WARN L315 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#t~nondet37| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:09:29,875 WARN L315 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:09:29,875 WARN L315 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#in~stack.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:09:29,875 WARN L315 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:09:29,875 WARN L315 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_pop_~stack.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:09:29,903 INFO L251 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2020-04-18 16:09:29,925 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-04-18 16:09:29,925 INFO L376 AbstractCegarLoop]: Hoare is true [2020-04-18 16:09:29,926 INFO L377 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-04-18 16:09:29,926 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-04-18 16:09:29,926 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-04-18 16:09:29,926 INFO L380 AbstractCegarLoop]: Difference is false [2020-04-18 16:09:29,926 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-04-18 16:09:29,926 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-04-18 16:09:29,946 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 140 places, 145 transitions, 312 flow [2020-04-18 16:09:30,268 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 7081 states. [2020-04-18 16:09:30,270 INFO L276 IsEmpty]: Start isEmpty. Operand 7081 states. [2020-04-18 16:09:30,306 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2020-04-18 16:09:30,307 INFO L417 BasicCegarLoop]: Found error trace [2020-04-18 16:09:30,308 INFO L425 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-04-18 16:09:30,309 INFO L427 AbstractCegarLoop]: === Iteration 1 === [t1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION, t1Err0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-04-18 16:09:30,317 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 16:09:30,317 INFO L82 PathProgramCache]: Analyzing trace with hash -1797022071, now seen corresponding path program 1 times [2020-04-18 16:09:30,325 INFO L163 FreeRefinementEngine]: Executing refinement strategy MCR [2020-04-18 16:09:30,326 INFO L354 FreeRefinementEngine]: Using trace check StrategyModuleMcr [1830598242] [2020-04-18 16:09:30,346 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 16:09:30,365 INFO L259 McrAutomatonBuilder]: Finished intersection with 49 states and 48 transitions. [2020-04-18 16:09:30,367 INFO L276 IsEmpty]: Start isEmpty. Operand 49 states. [2020-04-18 16:09:30,369 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2020-04-18 16:09:30,369 INFO L105 Mcr]: ---- MCR iteration 0 ---- [2020-04-18 16:09:30,369 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 16:09:30,370 INFO L82 PathProgramCache]: Analyzing trace with hash -1797022071, now seen corresponding path program 2 times [2020-04-18 16:09:30,374 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-18 16:09:30,375 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [415745722] [2020-04-18 16:09:30,375 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-18 16:09:30,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-18 16:09:30,753 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-04-18 16:09:30,754 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [415745722] [2020-04-18 16:09:30,755 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-18 16:09:30,755 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-04-18 16:09:30,756 INFO L201 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-04-18 16:09:30,769 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 16:09:30,791 INFO L259 McrAutomatonBuilder]: Finished intersection with 49 states and 48 transitions. [2020-04-18 16:09:30,791 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-04-18 16:09:30,805 INFO L356 McrAutomatonBuilder]: Construction finished. Needed to calculate wp 0 times. [2020-04-18 16:09:30,809 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-04-18 16:09:30,810 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-04-18 16:09:30,812 INFO L87 Difference]: Start difference. First operand 49 states. Second operand 3 states. [2020-04-18 16:09:30,818 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 16:09:30,818 INFO L93 Difference]: Finished difference Result 49 states and 48 transitions. [2020-04-18 16:09:30,818 INFO L276 IsEmpty]: Start isEmpty. Operand 49 states and 48 transitions. [2020-04-18 16:09:30,819 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-04-18 16:09:30,821 INFO L354 FreeRefinementEngine]: Using interpolant generator StrategyModuleMcr [1830598242] [2020-04-18 16:09:30,821 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-04-18 16:09:30,822 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3] total 3 [2020-04-18 16:09:30,822 INFO L156 tionRefinementEngine]: Using interpolant automaton builder StrategyModuleMcr [1830598242] [2020-04-18 16:09:30,823 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-04-18 16:09:30,824 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy MCR [2020-04-18 16:09:30,828 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-04-18 16:09:30,829 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-04-18 16:09:30,829 INFO L87 Difference]: Start difference. First operand 7081 states. Second operand 3 states. [2020-04-18 16:09:31,090 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 16:09:31,091 INFO L93 Difference]: Finished difference Result 10897 states and 29152 transitions. [2020-04-18 16:09:31,091 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-04-18 16:09:31,094 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 48 [2020-04-18 16:09:31,095 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-04-18 16:09:31,206 INFO L225 Difference]: With dead ends: 10897 [2020-04-18 16:09:31,206 INFO L226 Difference]: Without dead ends: 10765 [2020-04-18 16:09:31,210 INFO L678 BasicCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 46 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-04-18 16:09:31,301 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10765 states. [2020-04-18 16:09:31,610 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10765 to 9190. [2020-04-18 16:09:31,611 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9190 states. [2020-04-18 16:09:31,663 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9190 states to 9190 states and 24894 transitions. [2020-04-18 16:09:31,763 INFO L78 Accepts]: Start accepts. Automaton has 9190 states and 24894 transitions. Word has length 48 [2020-04-18 16:09:31,763 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-04-18 16:09:31,764 INFO L479 AbstractCegarLoop]: Abstraction has 9190 states and 24894 transitions. [2020-04-18 16:09:31,764 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-04-18 16:09:31,764 INFO L276 IsEmpty]: Start isEmpty. Operand 9190 states and 24894 transitions. [2020-04-18 16:09:31,776 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2020-04-18 16:09:31,776 INFO L417 BasicCegarLoop]: Found error trace [2020-04-18 16:09:31,776 INFO L425 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-04-18 16:09:31,777 INFO L427 AbstractCegarLoop]: === Iteration 2 === [t1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION, t1Err0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-04-18 16:09:31,779 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 16:09:31,779 INFO L82 PathProgramCache]: Analyzing trace with hash 506033560, now seen corresponding path program 1 times [2020-04-18 16:09:31,779 INFO L163 FreeRefinementEngine]: Executing refinement strategy MCR [2020-04-18 16:09:31,780 INFO L354 FreeRefinementEngine]: Using trace check StrategyModuleMcr [771200574] [2020-04-18 16:09:31,783 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 16:09:31,785 INFO L259 McrAutomatonBuilder]: Finished intersection with 50 states and 49 transitions. [2020-04-18 16:09:31,788 INFO L276 IsEmpty]: Start isEmpty. Operand 50 states. [2020-04-18 16:09:31,789 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2020-04-18 16:09:31,790 INFO L105 Mcr]: ---- MCR iteration 0 ---- [2020-04-18 16:09:31,790 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 16:09:31,790 INFO L82 PathProgramCache]: Analyzing trace with hash 506033560, now seen corresponding path program 2 times [2020-04-18 16:09:31,790 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-18 16:09:31,791 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [247829292] [2020-04-18 16:09:31,791 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-18 16:09:31,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-18 16:09:31,947 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-04-18 16:09:31,947 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [247829292] [2020-04-18 16:09:31,948 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-18 16:09:31,948 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-04-18 16:09:31,948 INFO L201 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-04-18 16:09:31,957 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 16:09:31,967 INFO L259 McrAutomatonBuilder]: Finished intersection with 50 states and 49 transitions. [2020-04-18 16:09:31,967 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-04-18 16:09:31,978 INFO L356 McrAutomatonBuilder]: Construction finished. Needed to calculate wp 0 times. [2020-04-18 16:09:31,979 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-04-18 16:09:31,979 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-04-18 16:09:31,979 INFO L87 Difference]: Start difference. First operand 50 states. Second operand 3 states. [2020-04-18 16:09:31,981 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 16:09:31,981 INFO L93 Difference]: Finished difference Result 50 states and 49 transitions. [2020-04-18 16:09:31,981 INFO L276 IsEmpty]: Start isEmpty. Operand 50 states and 49 transitions. [2020-04-18 16:09:31,982 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-04-18 16:09:31,982 INFO L354 FreeRefinementEngine]: Using interpolant generator StrategyModuleMcr [771200574] [2020-04-18 16:09:31,982 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-04-18 16:09:31,983 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3] total 3 [2020-04-18 16:09:31,983 INFO L156 tionRefinementEngine]: Using interpolant automaton builder StrategyModuleMcr [771200574] [2020-04-18 16:09:31,986 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-04-18 16:09:31,986 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy MCR [2020-04-18 16:09:31,986 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-04-18 16:09:31,987 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-04-18 16:09:31,987 INFO L87 Difference]: Start difference. First operand 9190 states and 24894 transitions. Second operand 3 states. [2020-04-18 16:09:32,094 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 16:09:32,094 INFO L93 Difference]: Finished difference Result 8440 states and 22448 transitions. [2020-04-18 16:09:32,095 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-04-18 16:09:32,095 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 49 [2020-04-18 16:09:32,096 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-04-18 16:09:32,184 INFO L225 Difference]: With dead ends: 8440 [2020-04-18 16:09:32,184 INFO L226 Difference]: Without dead ends: 8263 [2020-04-18 16:09:32,186 INFO L678 BasicCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 47 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-04-18 16:09:32,235 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8263 states. [2020-04-18 16:09:32,511 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8263 to 8035. [2020-04-18 16:09:32,511 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8035 states. [2020-04-18 16:09:32,547 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8035 states to 8035 states and 21493 transitions. [2020-04-18 16:09:32,548 INFO L78 Accepts]: Start accepts. Automaton has 8035 states and 21493 transitions. Word has length 49 [2020-04-18 16:09:32,549 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-04-18 16:09:32,550 INFO L479 AbstractCegarLoop]: Abstraction has 8035 states and 21493 transitions. [2020-04-18 16:09:32,550 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-04-18 16:09:32,550 INFO L276 IsEmpty]: Start isEmpty. Operand 8035 states and 21493 transitions. [2020-04-18 16:09:32,554 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2020-04-18 16:09:32,555 INFO L417 BasicCegarLoop]: Found error trace [2020-04-18 16:09:32,555 INFO L425 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-04-18 16:09:32,555 INFO L427 AbstractCegarLoop]: === Iteration 3 === [t1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION, t1Err0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-04-18 16:09:32,555 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 16:09:32,556 INFO L82 PathProgramCache]: Analyzing trace with hash -729952317, now seen corresponding path program 1 times [2020-04-18 16:09:32,556 INFO L163 FreeRefinementEngine]: Executing refinement strategy MCR [2020-04-18 16:09:32,556 INFO L354 FreeRefinementEngine]: Using trace check StrategyModuleMcr [87145410] [2020-04-18 16:09:32,558 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 16:09:32,560 INFO L259 McrAutomatonBuilder]: Finished intersection with 58 states and 57 transitions. [2020-04-18 16:09:32,560 INFO L276 IsEmpty]: Start isEmpty. Operand 58 states. [2020-04-18 16:09:32,561 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2020-04-18 16:09:32,561 INFO L105 Mcr]: ---- MCR iteration 0 ---- [2020-04-18 16:09:32,561 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 16:09:32,561 INFO L82 PathProgramCache]: Analyzing trace with hash -729952317, now seen corresponding path program 2 times [2020-04-18 16:09:32,562 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-18 16:09:32,562 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1542651079] [2020-04-18 16:09:32,562 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-18 16:09:32,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-18 16:09:32,646 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-04-18 16:09:32,648 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1542651079] [2020-04-18 16:09:32,649 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-18 16:09:32,649 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-04-18 16:09:32,649 INFO L201 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-04-18 16:09:32,659 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 16:09:32,673 INFO L259 McrAutomatonBuilder]: Finished intersection with 58 states and 57 transitions. [2020-04-18 16:09:32,673 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-04-18 16:09:32,685 INFO L356 McrAutomatonBuilder]: Construction finished. Needed to calculate wp 0 times. [2020-04-18 16:09:32,685 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-04-18 16:09:32,686 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-04-18 16:09:32,687 INFO L87 Difference]: Start difference. First operand 58 states. Second operand 4 states. [2020-04-18 16:09:32,713 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 16:09:32,714 INFO L93 Difference]: Finished difference Result 58 states and 57 transitions. [2020-04-18 16:09:32,714 INFO L276 IsEmpty]: Start isEmpty. Operand 58 states and 57 transitions. [2020-04-18 16:09:32,714 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-04-18 16:09:32,715 INFO L354 FreeRefinementEngine]: Using interpolant generator StrategyModuleMcr [87145410] [2020-04-18 16:09:32,716 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-04-18 16:09:32,716 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4] total 4 [2020-04-18 16:09:32,716 INFO L156 tionRefinementEngine]: Using interpolant automaton builder StrategyModuleMcr [87145410] [2020-04-18 16:09:32,716 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-04-18 16:09:32,717 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy MCR [2020-04-18 16:09:32,717 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-04-18 16:09:32,717 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-04-18 16:09:32,717 INFO L87 Difference]: Start difference. First operand 8035 states and 21493 transitions. Second operand 4 states. [2020-04-18 16:09:32,841 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 16:09:32,842 INFO L93 Difference]: Finished difference Result 11464 states and 30610 transitions. [2020-04-18 16:09:32,842 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-04-18 16:09:32,842 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 57 [2020-04-18 16:09:32,843 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-04-18 16:09:32,882 INFO L225 Difference]: With dead ends: 11464 [2020-04-18 16:09:32,883 INFO L226 Difference]: Without dead ends: 11464 [2020-04-18 16:09:32,883 INFO L678 BasicCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 55 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-04-18 16:09:32,941 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11464 states. [2020-04-18 16:09:33,154 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11464 to 8359. [2020-04-18 16:09:33,154 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8359 states. [2020-04-18 16:09:33,195 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8359 states to 8359 states and 22360 transitions. [2020-04-18 16:09:33,196 INFO L78 Accepts]: Start accepts. Automaton has 8359 states and 22360 transitions. Word has length 57 [2020-04-18 16:09:33,198 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-04-18 16:09:33,198 INFO L479 AbstractCegarLoop]: Abstraction has 8359 states and 22360 transitions. [2020-04-18 16:09:33,198 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-04-18 16:09:33,199 INFO L276 IsEmpty]: Start isEmpty. Operand 8359 states and 22360 transitions. [2020-04-18 16:09:33,212 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2020-04-18 16:09:33,212 INFO L417 BasicCegarLoop]: Found error trace [2020-04-18 16:09:33,213 INFO L425 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-04-18 16:09:33,213 INFO L427 AbstractCegarLoop]: === Iteration 4 === [t1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION, t1Err0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-04-18 16:09:33,213 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 16:09:33,213 INFO L82 PathProgramCache]: Analyzing trace with hash 1678836827, now seen corresponding path program 1 times [2020-04-18 16:09:33,214 INFO L163 FreeRefinementEngine]: Executing refinement strategy MCR [2020-04-18 16:09:33,214 INFO L354 FreeRefinementEngine]: Using trace check StrategyModuleMcr [1880055636] [2020-04-18 16:09:33,220 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 16:09:33,221 INFO L259 McrAutomatonBuilder]: Finished intersection with 84 states and 83 transitions. [2020-04-18 16:09:33,224 INFO L276 IsEmpty]: Start isEmpty. Operand 84 states. [2020-04-18 16:09:33,224 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2020-04-18 16:09:33,225 INFO L105 Mcr]: ---- MCR iteration 0 ---- [2020-04-18 16:09:33,225 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 16:09:33,225 INFO L82 PathProgramCache]: Analyzing trace with hash 1678836827, now seen corresponding path program 2 times [2020-04-18 16:09:33,225 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-18 16:09:33,226 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [591230584] [2020-04-18 16:09:33,226 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-18 16:09:33,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-18 16:09:33,534 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 3 proven. 15 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-04-18 16:09:33,534 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [591230584] [2020-04-18 16:09:33,534 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1213176481] [2020-04-18 16:09:33,535 INFO L92 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-04-18 16:09:33,682 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2020-04-18 16:09:33,682 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2020-04-18 16:09:33,685 INFO L264 TraceCheckSpWp]: Trace formula consists of 194 conjuncts, 4 conjunts are in the unsatisfiable core [2020-04-18 16:09:33,694 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2020-04-18 16:09:33,756 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 3 proven. 15 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-04-18 16:09:33,757 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-04-18 16:09:33,757 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 7 [2020-04-18 16:09:33,758 INFO L201 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-04-18 16:09:33,777 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 16:09:33,799 INFO L259 McrAutomatonBuilder]: Finished intersection with 84 states and 83 transitions. [2020-04-18 16:09:33,799 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-04-18 16:09:33,834 INFO L356 McrAutomatonBuilder]: Construction finished. Needed to calculate wp 0 times. [2020-04-18 16:09:33,834 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-04-18 16:09:33,835 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-04-18 16:09:33,835 INFO L87 Difference]: Start difference. First operand 84 states. Second operand 7 states. [2020-04-18 16:09:33,865 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 16:09:33,865 INFO L93 Difference]: Finished difference Result 84 states and 83 transitions. [2020-04-18 16:09:33,865 INFO L276 IsEmpty]: Start isEmpty. Operand 84 states and 83 transitions. [2020-04-18 16:09:33,866 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-04-18 16:09:33,866 INFO L354 FreeRefinementEngine]: Using interpolant generator StrategyModuleMcr [1880055636] [2020-04-18 16:09:33,866 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-04-18 16:09:33,867 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-04-18 16:09:33,867 INFO L156 tionRefinementEngine]: Using interpolant automaton builder StrategyModuleMcr [1880055636] [2020-04-18 16:09:33,867 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-04-18 16:09:33,867 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy MCR [2020-04-18 16:09:33,868 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-04-18 16:09:33,868 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=44, Unknown=0, NotChecked=0, Total=72 [2020-04-18 16:09:33,868 INFO L87 Difference]: Start difference. First operand 8359 states and 22360 transitions. Second operand 7 states. [2020-04-18 16:09:33,985 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 16:09:33,985 INFO L93 Difference]: Finished difference Result 12349 states and 32930 transitions. [2020-04-18 16:09:33,985 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-04-18 16:09:33,985 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 83 [2020-04-18 16:09:33,986 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-04-18 16:09:34,020 INFO L225 Difference]: With dead ends: 12349 [2020-04-18 16:09:34,020 INFO L226 Difference]: Without dead ends: 12349 [2020-04-18 16:09:34,021 INFO L678 BasicCegarLoop]: 0 DeclaredPredicates, 168 GetRequests, 161 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=28, Invalid=44, Unknown=0, NotChecked=0, Total=72 [2020-04-18 16:09:34,070 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12349 states. [2020-04-18 16:09:34,731 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12349 to 10774. [2020-04-18 16:09:34,732 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10774 states. [2020-04-18 16:09:34,758 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10774 states to 10774 states and 28968 transitions. [2020-04-18 16:09:34,758 INFO L78 Accepts]: Start accepts. Automaton has 10774 states and 28968 transitions. Word has length 83 [2020-04-18 16:09:34,758 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-04-18 16:09:34,759 INFO L479 AbstractCegarLoop]: Abstraction has 10774 states and 28968 transitions. [2020-04-18 16:09:34,759 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-04-18 16:09:34,759 INFO L276 IsEmpty]: Start isEmpty. Operand 10774 states and 28968 transitions. [2020-04-18 16:09:34,769 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2020-04-18 16:09:34,769 INFO L417 BasicCegarLoop]: Found error trace [2020-04-18 16:09:34,771 INFO L425 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-04-18 16:09:34,975 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-04-18 16:09:34,976 INFO L427 AbstractCegarLoop]: === Iteration 5 === [t1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION, t1Err0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-04-18 16:09:34,976 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 16:09:34,977 INFO L82 PathProgramCache]: Analyzing trace with hash 338718404, now seen corresponding path program 1 times [2020-04-18 16:09:34,977 INFO L163 FreeRefinementEngine]: Executing refinement strategy MCR [2020-04-18 16:09:34,978 INFO L354 FreeRefinementEngine]: Using trace check StrategyModuleMcr [378099618] [2020-04-18 16:09:34,984 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 16:09:35,010 INFO L259 McrAutomatonBuilder]: Finished intersection with 1030 states and 1974 transitions. [2020-04-18 16:09:35,015 INFO L276 IsEmpty]: Start isEmpty. Operand 1030 states. [2020-04-18 16:09:35,019 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2020-04-18 16:09:35,019 INFO L105 Mcr]: ---- MCR iteration 0 ---- [2020-04-18 16:09:35,019 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 16:09:35,019 INFO L82 PathProgramCache]: Analyzing trace with hash 1867720010, now seen corresponding path program 2 times [2020-04-18 16:09:35,020 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-18 16:09:35,020 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1666704425] [2020-04-18 16:09:35,020 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-18 16:09:35,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-18 16:09:35,077 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-04-18 16:09:35,077 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1666704425] [2020-04-18 16:09:35,078 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-18 16:09:35,078 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-04-18 16:09:35,078 INFO L201 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-04-18 16:09:35,096 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 16:09:35,351 INFO L259 McrAutomatonBuilder]: Finished intersection with 452 states and 818 transitions. [2020-04-18 16:09:35,351 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-04-18 16:09:35,397 INFO L356 McrAutomatonBuilder]: Construction finished. Needed to calculate wp 2 times. [2020-04-18 16:09:35,398 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-04-18 16:09:35,398 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-04-18 16:09:35,398 INFO L87 Difference]: Start difference. First operand 1030 states. Second operand 4 states. [2020-04-18 16:09:35,432 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 16:09:35,432 INFO L93 Difference]: Finished difference Result 1030 states and 1974 transitions. [2020-04-18 16:09:35,433 INFO L276 IsEmpty]: Start isEmpty. Operand 1030 states and 1974 transitions. [2020-04-18 16:09:35,435 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-04-18 16:09:35,435 INFO L354 FreeRefinementEngine]: Using interpolant generator StrategyModuleMcr [378099618] [2020-04-18 16:09:35,436 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-04-18 16:09:35,436 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3] total 3 [2020-04-18 16:09:35,436 INFO L156 tionRefinementEngine]: Using interpolant automaton builder StrategyModuleMcr [378099618] [2020-04-18 16:09:35,437 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-04-18 16:09:35,437 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy MCR [2020-04-18 16:09:35,437 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-04-18 16:09:35,437 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-04-18 16:09:35,437 INFO L87 Difference]: Start difference. First operand 10774 states and 28968 transitions. Second operand 4 states. [2020-04-18 16:09:35,505 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 16:09:35,505 INFO L93 Difference]: Finished difference Result 7147 states and 18116 transitions. [2020-04-18 16:09:35,506 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-04-18 16:09:35,506 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 84 [2020-04-18 16:09:35,506 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-04-18 16:09:35,524 INFO L225 Difference]: With dead ends: 7147 [2020-04-18 16:09:35,524 INFO L226 Difference]: Without dead ends: 7009 [2020-04-18 16:09:35,524 INFO L678 BasicCegarLoop]: 0 DeclaredPredicates, 89 GetRequests, 86 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-04-18 16:09:35,542 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7009 states. [2020-04-18 16:09:35,641 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7009 to 5434. [2020-04-18 16:09:35,641 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5434 states. [2020-04-18 16:09:35,654 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5434 states to 5434 states and 13782 transitions. [2020-04-18 16:09:35,654 INFO L78 Accepts]: Start accepts. Automaton has 5434 states and 13782 transitions. Word has length 84 [2020-04-18 16:09:35,655 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-04-18 16:09:35,655 INFO L479 AbstractCegarLoop]: Abstraction has 5434 states and 13782 transitions. [2020-04-18 16:09:35,655 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-04-18 16:09:35,655 INFO L276 IsEmpty]: Start isEmpty. Operand 5434 states and 13782 transitions. [2020-04-18 16:09:35,665 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2020-04-18 16:09:35,666 INFO L417 BasicCegarLoop]: Found error trace [2020-04-18 16:09:35,666 INFO L425 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-04-18 16:09:35,666 INFO L427 AbstractCegarLoop]: === Iteration 6 === [t1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION, t1Err0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-04-18 16:09:35,666 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 16:09:35,667 INFO L82 PathProgramCache]: Analyzing trace with hash 1133443641, now seen corresponding path program 1 times [2020-04-18 16:09:35,667 INFO L163 FreeRefinementEngine]: Executing refinement strategy MCR [2020-04-18 16:09:35,667 INFO L354 FreeRefinementEngine]: Using trace check StrategyModuleMcr [2018921591] [2020-04-18 16:09:35,672 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 16:09:35,697 INFO L259 McrAutomatonBuilder]: Finished intersection with 1058 states and 2029 transitions. [2020-04-18 16:09:35,703 INFO L276 IsEmpty]: Start isEmpty. Operand 1058 states. [2020-04-18 16:09:35,706 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2020-04-18 16:09:35,707 INFO L105 Mcr]: ---- MCR iteration 0 ---- [2020-04-18 16:09:35,707 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 16:09:35,707 INFO L82 PathProgramCache]: Analyzing trace with hash 1589684503, now seen corresponding path program 2 times [2020-04-18 16:09:35,707 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-18 16:09:35,708 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [723356853] [2020-04-18 16:09:35,708 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-18 16:09:35,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-18 16:09:35,799 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-04-18 16:09:35,799 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [723356853] [2020-04-18 16:09:35,800 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-18 16:09:35,800 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-04-18 16:09:35,800 INFO L201 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-04-18 16:09:35,816 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 16:09:36,079 INFO L259 McrAutomatonBuilder]: Finished intersection with 470 states and 853 transitions. [2020-04-18 16:09:36,080 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-04-18 16:09:36,095 INFO L356 McrAutomatonBuilder]: Construction finished. Needed to calculate wp 2 times. [2020-04-18 16:09:36,096 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-04-18 16:09:36,096 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-04-18 16:09:36,096 INFO L87 Difference]: Start difference. First operand 1058 states. Second operand 4 states. [2020-04-18 16:09:36,129 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 16:09:36,130 INFO L93 Difference]: Finished difference Result 1078 states and 2048 transitions. [2020-04-18 16:09:36,130 INFO L276 IsEmpty]: Start isEmpty. Operand 1078 states and 2048 transitions. [2020-04-18 16:09:36,132 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2020-04-18 16:09:36,132 INFO L105 Mcr]: ---- MCR iteration 1 ---- [2020-04-18 16:09:36,132 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 16:09:36,133 INFO L82 PathProgramCache]: Analyzing trace with hash 1133443641, now seen corresponding path program 3 times [2020-04-18 16:09:36,133 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-18 16:09:36,133 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [521813687] [2020-04-18 16:09:36,133 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-18 16:09:36,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-18 16:09:36,264 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-04-18 16:09:36,265 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [521813687] [2020-04-18 16:09:36,265 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-18 16:09:36,265 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-04-18 16:09:36,265 INFO L201 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-04-18 16:09:36,281 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 16:09:36,367 INFO L259 McrAutomatonBuilder]: Finished intersection with 312 states and 537 transitions. [2020-04-18 16:09:36,367 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-04-18 16:09:36,486 INFO L356 McrAutomatonBuilder]: Construction finished. Needed to calculate wp 10 times. [2020-04-18 16:09:36,487 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-04-18 16:09:36,488 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=107, Unknown=0, NotChecked=0, Total=132 [2020-04-18 16:09:36,488 INFO L87 Difference]: Start difference. First operand 1078 states and 2048 transitions. Second operand 9 states. [2020-04-18 16:09:36,677 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 16:09:36,677 INFO L93 Difference]: Finished difference Result 1186 states and 2243 transitions. [2020-04-18 16:09:36,677 INFO L276 IsEmpty]: Start isEmpty. Operand 1186 states and 2243 transitions. [2020-04-18 16:09:36,679 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-04-18 16:09:36,680 INFO L354 FreeRefinementEngine]: Using interpolant generator StrategyModuleMcr [2018921591] [2020-04-18 16:09:36,681 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-04-18 16:09:36,681 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-04-18 16:09:36,681 INFO L156 tionRefinementEngine]: Using interpolant automaton builder StrategyModuleMcr [2018921591] [2020-04-18 16:09:36,681 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-04-18 16:09:36,682 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy MCR [2020-04-18 16:09:36,682 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-04-18 16:09:36,682 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=69, Invalid=237, Unknown=0, NotChecked=0, Total=306 [2020-04-18 16:09:36,682 INFO L87 Difference]: Start difference. First operand 5434 states and 13782 transitions. Second operand 11 states. [2020-04-18 16:09:37,606 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 16:09:37,606 INFO L93 Difference]: Finished difference Result 11134 states and 27610 transitions. [2020-04-18 16:09:37,606 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2020-04-18 16:09:37,606 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 85 [2020-04-18 16:09:37,607 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-04-18 16:09:37,638 INFO L225 Difference]: With dead ends: 11134 [2020-04-18 16:09:37,638 INFO L226 Difference]: Without dead ends: 11134 [2020-04-18 16:09:37,639 INFO L678 BasicCegarLoop]: 0 DeclaredPredicates, 228 GetRequests, 189 SyntacticMatches, 0 SemanticMatches, 39 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 424 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=303, Invalid=1337, Unknown=0, NotChecked=0, Total=1640 [2020-04-18 16:09:37,661 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11134 states. [2020-04-18 16:09:37,774 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11134 to 5797. [2020-04-18 16:09:37,775 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5797 states. [2020-04-18 16:09:37,789 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5797 states to 5797 states and 14657 transitions. [2020-04-18 16:09:37,790 INFO L78 Accepts]: Start accepts. Automaton has 5797 states and 14657 transitions. Word has length 85 [2020-04-18 16:09:37,790 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-04-18 16:09:37,790 INFO L479 AbstractCegarLoop]: Abstraction has 5797 states and 14657 transitions. [2020-04-18 16:09:37,790 INFO L480 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-04-18 16:09:37,791 INFO L276 IsEmpty]: Start isEmpty. Operand 5797 states and 14657 transitions. [2020-04-18 16:09:37,800 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2020-04-18 16:09:37,800 INFO L417 BasicCegarLoop]: Found error trace [2020-04-18 16:09:37,800 INFO L425 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-04-18 16:09:37,801 INFO L427 AbstractCegarLoop]: === Iteration 7 === [t1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION, t1Err0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-04-18 16:09:37,801 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 16:09:37,801 INFO L82 PathProgramCache]: Analyzing trace with hash 1080610481, now seen corresponding path program 1 times [2020-04-18 16:09:37,801 INFO L163 FreeRefinementEngine]: Executing refinement strategy MCR [2020-04-18 16:09:37,801 INFO L354 FreeRefinementEngine]: Using trace check StrategyModuleMcr [1371031917] [2020-04-18 16:09:37,807 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 16:09:37,858 INFO L259 McrAutomatonBuilder]: Finished intersection with 1428 states and 2759 transitions. [2020-04-18 16:09:37,867 INFO L276 IsEmpty]: Start isEmpty. Operand 1428 states. [2020-04-18 16:09:37,871 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2020-04-18 16:09:37,871 INFO L105 Mcr]: ---- MCR iteration 0 ---- [2020-04-18 16:09:37,872 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 16:09:37,872 INFO L82 PathProgramCache]: Analyzing trace with hash 1647050767, now seen corresponding path program 2 times [2020-04-18 16:09:37,872 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-18 16:09:37,872 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [700916690] [2020-04-18 16:09:37,873 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-18 16:09:37,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-18 16:09:37,928 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-04-18 16:09:37,929 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [700916690] [2020-04-18 16:09:37,929 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-18 16:09:37,929 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-04-18 16:09:37,929 INFO L201 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-04-18 16:09:37,949 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 16:09:38,364 INFO L259 McrAutomatonBuilder]: Finished intersection with 560 states and 1023 transitions. [2020-04-18 16:09:38,364 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-04-18 16:09:38,377 INFO L356 McrAutomatonBuilder]: Construction finished. Needed to calculate wp 2 times. [2020-04-18 16:09:38,377 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-04-18 16:09:38,377 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-04-18 16:09:38,377 INFO L87 Difference]: Start difference. First operand 1428 states. Second operand 4 states. [2020-04-18 16:09:38,407 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 16:09:38,407 INFO L93 Difference]: Finished difference Result 1458 states and 2788 transitions. [2020-04-18 16:09:38,407 INFO L276 IsEmpty]: Start isEmpty. Operand 1458 states and 2788 transitions. [2020-04-18 16:09:38,410 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2020-04-18 16:09:38,410 INFO L105 Mcr]: ---- MCR iteration 1 ---- [2020-04-18 16:09:38,410 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 16:09:38,410 INFO L82 PathProgramCache]: Analyzing trace with hash 1080610481, now seen corresponding path program 3 times [2020-04-18 16:09:38,411 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-18 16:09:38,411 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1657151268] [2020-04-18 16:09:38,411 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-18 16:09:38,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-18 16:09:39,886 WARN L192 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 47 DAG size of output: 20 [2020-04-18 16:09:40,085 WARN L192 SmtUtils]: Spent 141.00 ms on a formula simplification. DAG size of input: 47 DAG size of output: 20 [2020-04-18 16:09:40,389 WARN L192 SmtUtils]: Spent 128.00 ms on a formula simplification. DAG size of input: 47 DAG size of output: 20 [2020-04-18 16:09:40,679 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-04-18 16:09:40,679 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1657151268] [2020-04-18 16:09:40,679 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-18 16:09:40,680 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [20] imperfect sequences [] total 20 [2020-04-18 16:09:40,680 INFO L201 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-04-18 16:09:40,705 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 16:09:41,233 INFO L259 McrAutomatonBuilder]: Finished intersection with 322 states and 547 transitions. [2020-04-18 16:09:41,233 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-04-18 16:09:43,694 INFO L356 McrAutomatonBuilder]: Construction finished. Needed to calculate wp 54 times. [2020-04-18 16:09:43,694 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 35 interpolants. [2020-04-18 16:09:43,696 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=133, Invalid=1273, Unknown=0, NotChecked=0, Total=1406 [2020-04-18 16:09:43,696 INFO L87 Difference]: Start difference. First operand 1458 states and 2788 transitions. Second operand 35 states. [2020-04-18 16:09:48,667 WARN L192 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 40 [2020-04-18 16:09:49,026 WARN L192 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 43 [2020-04-18 16:09:51,232 WARN L192 SmtUtils]: Spent 156.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 45 [2020-04-18 16:09:52,294 WARN L192 SmtUtils]: Spent 152.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 48 [2020-04-18 16:09:53,890 WARN L192 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 42 [2020-04-18 16:09:54,778 WARN L192 SmtUtils]: Spent 190.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 58 [2020-04-18 16:09:55,536 WARN L192 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 42 [2020-04-18 16:09:56,126 WARN L192 SmtUtils]: Spent 124.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 47 [2020-04-18 16:09:57,441 WARN L192 SmtUtils]: Spent 220.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 61 [2020-04-18 16:09:58,790 WARN L192 SmtUtils]: Spent 168.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 55 [2020-04-18 16:09:59,279 WARN L192 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 44 [2020-04-18 16:09:59,951 WARN L192 SmtUtils]: Spent 181.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 55 [2020-04-18 16:10:00,618 WARN L192 SmtUtils]: Spent 152.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 49 [2020-04-18 16:10:01,457 WARN L192 SmtUtils]: Spent 224.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 60 [2020-04-18 16:10:02,005 WARN L192 SmtUtils]: Spent 126.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 47 [2020-04-18 16:10:03,235 WARN L192 SmtUtils]: Spent 169.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 52 [2020-04-18 16:10:05,005 WARN L192 SmtUtils]: Spent 194.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 57 [2020-04-18 16:10:06,115 WARN L192 SmtUtils]: Spent 223.00 ms on a formula simplification. DAG size of input: 102 DAG size of output: 62 [2020-04-18 16:10:06,563 WARN L192 SmtUtils]: Spent 194.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 60 [2020-04-18 16:10:07,193 WARN L192 SmtUtils]: Spent 252.00 ms on a formula simplification. DAG size of input: 105 DAG size of output: 65 [2020-04-18 16:10:11,247 WARN L192 SmtUtils]: Spent 190.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 62 [2020-04-18 16:10:12,792 WARN L192 SmtUtils]: Spent 238.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 68 [2020-04-18 16:10:13,538 WARN L192 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 58 [2020-04-18 16:10:15,471 WARN L192 SmtUtils]: Spent 263.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 65 [2020-04-18 16:10:16,445 WARN L192 SmtUtils]: Spent 244.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 64 [2020-04-18 16:10:18,398 WARN L192 SmtUtils]: Spent 124.00 ms on a formula simplification that was a NOOP. DAG size: 64 [2020-04-18 16:10:19,207 WARN L192 SmtUtils]: Spent 185.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 59 [2020-04-18 16:10:19,825 WARN L192 SmtUtils]: Spent 241.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 71 [2020-04-18 16:10:20,392 WARN L192 SmtUtils]: Spent 173.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 59 [2020-04-18 16:10:21,333 WARN L192 SmtUtils]: Spent 117.00 ms on a formula simplification that was a NOOP. DAG size: 60 [2020-04-18 16:10:22,719 WARN L192 SmtUtils]: Spent 222.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 64 [2020-04-18 16:10:23,675 WARN L192 SmtUtils]: Spent 222.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 65 [2020-04-18 16:10:24,561 WARN L192 SmtUtils]: Spent 266.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 67 [2020-04-18 16:10:25,614 WARN L192 SmtUtils]: Spent 215.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 69 [2020-04-18 16:10:26,434 WARN L192 SmtUtils]: Spent 204.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 65 [2020-04-18 16:10:28,745 WARN L192 SmtUtils]: Spent 253.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 70 [2020-04-18 16:10:29,700 WARN L192 SmtUtils]: Spent 202.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 61 [2020-04-18 16:10:31,106 WARN L192 SmtUtils]: Spent 193.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 61 [2020-04-18 16:10:31,828 WARN L192 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 65 [2020-04-18 16:10:32,384 WARN L192 SmtUtils]: Spent 229.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 66 [2020-04-18 16:10:33,029 WARN L192 SmtUtils]: Spent 271.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 72 [2020-04-18 16:10:33,662 WARN L192 SmtUtils]: Spent 187.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 61 [2020-04-18 16:10:35,430 WARN L192 SmtUtils]: Spent 291.00 ms on a formula simplification. DAG size of input: 106 DAG size of output: 66 [2020-04-18 16:10:36,423 WARN L192 SmtUtils]: Spent 212.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 66 [2020-04-18 16:10:37,498 WARN L192 SmtUtils]: Spent 204.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 64 [2020-04-18 16:10:38,301 WARN L192 SmtUtils]: Spent 213.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 67 [2020-04-18 16:10:39,629 WARN L192 SmtUtils]: Spent 220.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 66 [2020-04-18 16:10:41,233 WARN L192 SmtUtils]: Spent 275.00 ms on a formula simplification. DAG size of input: 109 DAG size of output: 69 [2020-04-18 16:10:42,695 WARN L192 SmtUtils]: Spent 309.00 ms on a formula simplification. DAG size of input: 112 DAG size of output: 72 [2020-04-18 16:10:44,607 WARN L192 SmtUtils]: Spent 421.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 71 [2020-04-18 16:10:46,208 WARN L192 SmtUtils]: Spent 309.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 70 [2020-04-18 16:10:46,551 WARN L192 SmtUtils]: Spent 200.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 63 [2020-04-18 16:10:47,480 WARN L192 SmtUtils]: Spent 321.00 ms on a formula simplification. DAG size of input: 115 DAG size of output: 75 [2020-04-18 16:10:48,117 WARN L192 SmtUtils]: Spent 271.00 ms on a formula simplification. DAG size of input: 108 DAG size of output: 68 [2020-04-18 16:10:48,807 WARN L192 SmtUtils]: Spent 213.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 66 [2020-04-18 16:10:49,754 WARN L192 SmtUtils]: Spent 290.00 ms on a formula simplification. DAG size of input: 111 DAG size of output: 71 [2020-04-18 16:10:50,606 WARN L192 SmtUtils]: Spent 220.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 68 [2020-04-18 16:10:51,858 WARN L192 SmtUtils]: Spent 302.00 ms on a formula simplification. DAG size of input: 113 DAG size of output: 73 [2020-04-18 16:10:52,794 WARN L192 SmtUtils]: Spent 241.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 71 [2020-04-18 16:10:54,336 WARN L192 SmtUtils]: Spent 305.00 ms on a formula simplification. DAG size of input: 116 DAG size of output: 76 [2020-04-18 16:10:57,104 WARN L192 SmtUtils]: Spent 115.00 ms on a formula simplification that was a NOOP. DAG size: 54 [2020-04-18 16:11:00,224 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 16:11:00,224 INFO L93 Difference]: Finished difference Result 2382 states and 4557 transitions. [2020-04-18 16:11:00,225 INFO L276 IsEmpty]: Start isEmpty. Operand 2382 states and 4557 transitions. [2020-04-18 16:11:00,229 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2020-04-18 16:11:00,229 INFO L105 Mcr]: ---- MCR iteration 2 ---- [2020-04-18 16:11:00,230 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 16:11:00,230 INFO L82 PathProgramCache]: Analyzing trace with hash 1431473623, now seen corresponding path program 4 times [2020-04-18 16:11:00,230 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-18 16:11:00,231 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2110896977] [2020-04-18 16:11:00,231 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-18 16:11:00,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-18 16:11:01,093 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-04-18 16:11:01,094 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2110896977] [2020-04-18 16:11:01,094 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-18 16:11:01,094 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [23] imperfect sequences [] total 23 [2020-04-18 16:11:01,094 INFO L201 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-04-18 16:11:01,112 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 16:11:01,171 INFO L259 McrAutomatonBuilder]: Finished intersection with 204 states and 311 transitions. [2020-04-18 16:11:01,172 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-04-18 16:11:15,061 INFO L356 McrAutomatonBuilder]: Construction finished. Needed to calculate wp 14 times. [2020-04-18 16:11:15,061 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2020-04-18 16:11:15,068 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3964, Invalid=21796, Unknown=0, NotChecked=0, Total=25760 [2020-04-18 16:11:15,068 INFO L87 Difference]: Start difference. First operand 2382 states and 4557 transitions. Second operand 23 states. [2020-04-18 16:11:18,446 WARN L192 SmtUtils]: Spent 127.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 56 [2020-04-18 16:11:19,618 WARN L192 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 48 [2020-04-18 16:11:20,973 WARN L192 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 50 [2020-04-18 16:11:21,833 WARN L192 SmtUtils]: Spent 127.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 53 [2020-04-18 16:11:23,594 WARN L192 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 43 [2020-04-18 16:11:24,261 WARN L192 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 53 [2020-04-18 16:11:24,907 WARN L192 SmtUtils]: Spent 137.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 59 [2020-04-18 16:11:25,538 WARN L192 SmtUtils]: Spent 141.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 59 [2020-04-18 16:11:25,788 WARN L192 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 56 [2020-04-18 16:11:26,487 WARN L192 SmtUtils]: Spent 154.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 65 [2020-04-18 16:11:26,830 WARN L192 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 51 [2020-04-18 16:11:27,233 WARN L192 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 52 [2020-04-18 16:11:27,708 WARN L192 SmtUtils]: Spent 139.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 62 [2020-04-18 16:11:28,059 WARN L192 SmtUtils]: Spent 126.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 61 [2020-04-18 16:11:28,567 WARN L192 SmtUtils]: Spent 137.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 57 [2020-04-18 16:11:29,538 WARN L192 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 54 [2020-04-18 16:11:30,102 WARN L192 SmtUtils]: Spent 163.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 67 [2020-04-18 16:11:30,718 WARN L192 SmtUtils]: Spent 130.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 53 [2020-04-18 16:11:31,364 WARN L192 SmtUtils]: Spent 124.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 54 [2020-04-18 16:11:32,221 WARN L192 SmtUtils]: Spent 133.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 56 [2020-04-18 16:11:33,080 WARN L192 SmtUtils]: Spent 148.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 59 [2020-04-18 16:11:33,929 WARN L192 SmtUtils]: Spent 148.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 59 [2020-04-18 16:11:35,025 WARN L192 SmtUtils]: Spent 155.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 62 [2020-04-18 16:11:35,846 WARN L192 SmtUtils]: Spent 154.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 56 [2020-04-18 16:11:36,827 WARN L192 SmtUtils]: Spent 156.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 59 [2020-04-18 16:11:38,101 WARN L192 SmtUtils]: Spent 160.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 61 [2020-04-18 16:11:39,312 WARN L192 SmtUtils]: Spent 176.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 64 [2020-04-18 16:11:39,926 WARN L192 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 46 [2020-04-18 16:11:40,257 WARN L192 SmtUtils]: Spent 141.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 52 [2020-04-18 16:11:40,552 WARN L192 SmtUtils]: Spent 124.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 49 [2020-04-18 16:11:40,906 WARN L192 SmtUtils]: Spent 147.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 54 [2020-04-18 16:11:41,252 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 16:11:41,252 INFO L93 Difference]: Finished difference Result 2382 states and 4557 transitions. [2020-04-18 16:11:41,252 INFO L276 IsEmpty]: Start isEmpty. Operand 2382 states and 4557 transitions. [2020-04-18 16:11:41,255 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-04-18 16:11:41,256 INFO L354 FreeRefinementEngine]: Using interpolant generator StrategyModuleMcr [1371031917] [2020-04-18 16:11:41,256 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-04-18 16:11:41,257 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [23] total 23 [2020-04-18 16:11:41,257 INFO L156 tionRefinementEngine]: Using interpolant automaton builder StrategyModuleMcr [1371031917] [2020-04-18 16:11:41,257 INFO L459 AbstractCegarLoop]: Interpolant automaton has 58 states [2020-04-18 16:11:41,257 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy MCR [2020-04-18 16:11:41,257 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 58 interpolants. [2020-04-18 16:11:41,267 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8113, Invalid=38759, Unknown=0, NotChecked=0, Total=46872 [2020-04-18 16:11:41,267 INFO L87 Difference]: Start difference. First operand 5797 states and 14657 transitions. Second operand 58 states. [2020-04-18 16:11:42,534 WARN L192 SmtUtils]: Spent 134.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 55 [2020-04-18 16:11:43,006 WARN L192 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 47 [2020-04-18 16:11:43,743 WARN L192 SmtUtils]: Spent 137.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 46 [2020-04-18 16:11:44,003 WARN L192 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 52 [2020-04-18 16:11:44,335 WARN L192 SmtUtils]: Spent 144.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 60 [2020-04-18 16:11:45,426 WARN L192 SmtUtils]: Spent 171.00 ms on a formula simplification. DAG size of input: 105 DAG size of output: 62 [2020-04-18 16:11:45,856 WARN L192 SmtUtils]: Spent 216.00 ms on a formula simplification. DAG size of input: 107 DAG size of output: 63 [2020-04-18 16:11:46,906 WARN L192 SmtUtils]: Spent 274.00 ms on a formula simplification. DAG size of input: 110 DAG size of output: 65 [2020-04-18 16:11:47,531 WARN L192 SmtUtils]: Spent 326.00 ms on a formula simplification. DAG size of input: 112 DAG size of output: 66 [2020-04-18 16:11:48,022 WARN L192 SmtUtils]: Spent 126.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 55 [2020-04-18 16:11:48,424 WARN L192 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 52 [2020-04-18 16:11:49,317 WARN L192 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 57 [2020-04-18 16:11:50,603 WARN L192 SmtUtils]: Spent 329.00 ms on a formula simplification. DAG size of input: 111 DAG size of output: 79 [2020-04-18 16:11:50,900 WARN L192 SmtUtils]: Spent 192.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 68 [2020-04-18 16:11:51,503 WARN L192 SmtUtils]: Spent 183.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 64 [2020-04-18 16:11:52,030 WARN L192 SmtUtils]: Spent 348.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 59 [2020-04-18 16:11:53,155 WARN L192 SmtUtils]: Spent 217.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 57 [2020-04-18 16:11:53,483 WARN L192 SmtUtils]: Spent 192.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 63 [2020-04-18 16:11:53,887 WARN L192 SmtUtils]: Spent 198.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 67 [2020-04-18 16:11:54,383 WARN L192 SmtUtils]: Spent 248.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 71 [2020-04-18 16:11:54,825 WARN L192 SmtUtils]: Spent 176.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 61 [2020-04-18 16:11:55,113 WARN L192 SmtUtils]: Spent 133.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 54 [2020-04-18 16:11:55,493 WARN L192 SmtUtils]: Spent 151.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 59 [2020-04-18 16:11:56,013 WARN L192 SmtUtils]: Spent 213.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 71 [2020-04-18 16:11:56,622 WARN L192 SmtUtils]: Spent 253.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 75 [2020-04-18 16:11:57,071 WARN L192 SmtUtils]: Spent 135.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 51 [2020-04-18 16:11:57,423 WARN L192 SmtUtils]: Spent 144.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 58 [2020-04-18 16:11:57,885 WARN L192 SmtUtils]: Spent 183.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 57 [2020-04-18 16:11:58,417 WARN L192 SmtUtils]: Spent 152.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 51 [2020-04-18 16:11:58,914 WARN L192 SmtUtils]: Spent 181.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 63 [2020-04-18 16:11:59,297 WARN L192 SmtUtils]: Spent 142.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 54 [2020-04-18 16:11:59,899 WARN L192 SmtUtils]: Spent 182.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 59 [2020-04-18 16:12:00,985 WARN L192 SmtUtils]: Spent 188.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 55 [2020-04-18 16:12:01,869 WARN L192 SmtUtils]: Spent 337.00 ms on a formula simplification. DAG size of input: 102 DAG size of output: 81 [2020-04-18 16:12:02,647 WARN L192 SmtUtils]: Spent 158.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 45 [2020-04-18 16:12:03,322 WARN L192 SmtUtils]: Spent 222.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 58 [2020-04-18 16:12:03,650 WARN L192 SmtUtils]: Spent 125.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 53 [2020-04-18 16:12:04,122 WARN L192 SmtUtils]: Spent 295.00 ms on a formula simplification. DAG size of input: 107 DAG size of output: 86 [2020-04-18 16:12:04,792 WARN L192 SmtUtils]: Spent 280.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 79 [2020-04-18 16:12:05,282 WARN L192 SmtUtils]: Spent 317.00 ms on a formula simplification. DAG size of input: 106 DAG size of output: 85 [2020-04-18 16:12:05,511 WARN L192 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 43 [2020-04-18 16:12:06,026 WARN L192 SmtUtils]: Spent 306.00 ms on a formula simplification. DAG size of input: 110 DAG size of output: 89 [2020-04-18 16:12:06,471 WARN L192 SmtUtils]: Spent 138.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 49 [2020-04-18 16:12:06,844 WARN L192 SmtUtils]: Spent 147.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 54 [2020-04-18 16:12:07,504 WARN L192 SmtUtils]: Spent 378.00 ms on a formula simplification. DAG size of input: 115 DAG size of output: 93 [2020-04-18 16:12:08,100 WARN L192 SmtUtils]: Spent 189.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 58 [2020-04-18 16:12:08,790 WARN L192 SmtUtils]: Spent 339.00 ms on a formula simplification. DAG size of input: 111 DAG size of output: 90 [2020-04-18 16:12:09,497 WARN L192 SmtUtils]: Spent 236.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 76 [2020-04-18 16:12:10,101 WARN L192 SmtUtils]: Spent 313.00 ms on a formula simplification. DAG size of input: 100 DAG size of output: 83 [2020-04-18 16:12:10,824 WARN L192 SmtUtils]: Spent 319.00 ms on a formula simplification. DAG size of input: 102 DAG size of output: 81 [2020-04-18 16:12:11,196 WARN L192 SmtUtils]: Spent 145.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 47 [2020-04-18 16:12:12,287 WARN L192 SmtUtils]: Spent 357.00 ms on a formula simplification. DAG size of input: 114 DAG size of output: 93 [2020-04-18 16:12:12,773 WARN L192 SmtUtils]: Spent 134.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 46 [2020-04-18 16:12:13,361 WARN L192 SmtUtils]: Spent 199.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 58 [2020-04-18 16:12:14,332 WARN L192 SmtUtils]: Spent 432.00 ms on a formula simplification. DAG size of input: 119 DAG size of output: 97 [2020-04-18 16:12:15,516 WARN L192 SmtUtils]: Spent 233.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 62 [2020-04-18 16:12:16,454 WARN L192 SmtUtils]: Spent 229.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 80 [2020-04-18 16:12:16,677 WARN L192 SmtUtils]: Spent 142.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 57 [2020-04-18 16:12:17,190 WARN L192 SmtUtils]: Spent 281.00 ms on a formula simplification. DAG size of input: 106 DAG size of output: 85 [2020-04-18 16:12:17,634 WARN L192 SmtUtils]: Spent 274.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 75 [2020-04-18 16:12:18,190 WARN L192 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 50 [2020-04-18 16:12:18,640 WARN L192 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 52 [2020-04-18 16:12:18,921 WARN L192 SmtUtils]: Spent 126.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 47 [2020-04-18 16:12:19,424 WARN L192 SmtUtils]: Spent 292.00 ms on a formula simplification. DAG size of input: 101 DAG size of output: 80 [2020-04-18 16:12:19,985 WARN L192 SmtUtils]: Spent 244.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 73 [2020-04-18 16:12:20,518 WARN L192 SmtUtils]: Spent 166.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 61 [2020-04-18 16:12:21,141 WARN L192 SmtUtils]: Spent 300.00 ms on a formula simplification. DAG size of input: 100 DAG size of output: 79 [2020-04-18 16:12:21,702 WARN L192 SmtUtils]: Spent 296.00 ms on a formula simplification. DAG size of input: 104 DAG size of output: 83 [2020-04-18 16:12:22,658 WARN L192 SmtUtils]: Spent 403.00 ms on a formula simplification. DAG size of input: 109 DAG size of output: 87 [2020-04-18 16:12:23,029 WARN L192 SmtUtils]: Spent 160.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 51 [2020-04-18 16:12:23,666 WARN L192 SmtUtils]: Spent 290.00 ms on a formula simplification. DAG size of input: 105 DAG size of output: 84 [2020-04-18 16:12:24,310 WARN L192 SmtUtils]: Spent 302.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 70 [2020-04-18 16:12:24,949 WARN L192 SmtUtils]: Spent 287.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 77 [2020-04-18 16:12:25,715 WARN L192 SmtUtils]: Spent 275.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 75 [2020-04-18 16:12:26,635 WARN L192 SmtUtils]: Spent 410.00 ms on a formula simplification. DAG size of input: 108 DAG size of output: 87 [2020-04-18 16:12:27,046 WARN L192 SmtUtils]: Spent 163.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 49 [2020-04-18 16:12:27,922 WARN L192 SmtUtils]: Spent 389.00 ms on a formula simplification. DAG size of input: 113 DAG size of output: 91 [2020-04-18 16:12:28,369 WARN L192 SmtUtils]: Spent 182.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 55 [2020-04-18 16:12:29,059 WARN L192 SmtUtils]: Spent 349.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 60 [2020-04-18 16:12:29,488 WARN L192 SmtUtils]: Spent 182.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 64 [2020-04-18 16:12:29,856 WARN L192 SmtUtils]: Spent 228.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 74 [2020-04-18 16:12:30,306 WARN L192 SmtUtils]: Spent 253.00 ms on a formula simplification. DAG size of input: 100 DAG size of output: 79 [2020-04-18 16:12:30,580 WARN L192 SmtUtils]: Spent 129.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 53 [2020-04-18 16:12:31,029 WARN L192 SmtUtils]: Spent 123.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 52 [2020-04-18 16:12:31,359 WARN L192 SmtUtils]: Spent 163.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 64 [2020-04-18 16:12:31,803 WARN L192 SmtUtils]: Spent 206.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 68 [2020-04-18 16:12:32,095 WARN L192 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 53 [2020-04-18 16:12:32,485 WARN L192 SmtUtils]: Spent 166.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 56 [2020-04-18 16:12:32,528 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 16:12:32,528 INFO L93 Difference]: Finished difference Result 20086 states and 49744 transitions. [2020-04-18 16:12:32,528 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 127 states. [2020-04-18 16:12:32,528 INFO L78 Accepts]: Start accepts. Automaton has 58 states. Word has length 95 [2020-04-18 16:12:32,529 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-04-18 16:12:32,581 INFO L225 Difference]: With dead ends: 20086 [2020-04-18 16:12:32,581 INFO L226 Difference]: Without dead ends: 20086 [2020-04-18 16:12:32,589 INFO L678 BasicCegarLoop]: 0 DeclaredPredicates, 680 GetRequests, 345 SyntacticMatches, 1 SemanticMatches, 334 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 42649 ImplicationChecksByTransitivity, 122.7s TimeCoverageRelationStatistics Valid=12740, Invalid=99820, Unknown=0, NotChecked=0, Total=112560 [2020-04-18 16:12:32,635 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20086 states. [2020-04-18 16:12:32,822 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20086 to 7789. [2020-04-18 16:12:32,823 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7789 states. [2020-04-18 16:12:32,839 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7789 states to 7789 states and 19845 transitions. [2020-04-18 16:12:32,839 INFO L78 Accepts]: Start accepts. Automaton has 7789 states and 19845 transitions. Word has length 95 [2020-04-18 16:12:32,840 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-04-18 16:12:32,840 INFO L479 AbstractCegarLoop]: Abstraction has 7789 states and 19845 transitions. [2020-04-18 16:12:32,840 INFO L480 AbstractCegarLoop]: Interpolant automaton has 58 states. [2020-04-18 16:12:32,840 INFO L276 IsEmpty]: Start isEmpty. Operand 7789 states and 19845 transitions. [2020-04-18 16:12:32,853 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2020-04-18 16:12:32,853 INFO L417 BasicCegarLoop]: Found error trace [2020-04-18 16:12:32,854 INFO L425 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-04-18 16:12:32,854 INFO L427 AbstractCegarLoop]: === Iteration 8 === [t1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION, t1Err0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-04-18 16:12:32,854 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 16:12:32,855 INFO L82 PathProgramCache]: Analyzing trace with hash 1792916809, now seen corresponding path program 3 times [2020-04-18 16:12:32,855 INFO L163 FreeRefinementEngine]: Executing refinement strategy MCR [2020-04-18 16:12:32,855 INFO L354 FreeRefinementEngine]: Using trace check StrategyModuleMcr [2124001766] [2020-04-18 16:12:32,861 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 16:12:32,862 INFO L259 McrAutomatonBuilder]: Finished intersection with 119 states and 118 transitions. [2020-04-18 16:12:32,863 INFO L276 IsEmpty]: Start isEmpty. Operand 119 states. [2020-04-18 16:12:32,864 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2020-04-18 16:12:32,864 INFO L105 Mcr]: ---- MCR iteration 0 ---- [2020-04-18 16:12:32,864 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 16:12:32,864 INFO L82 PathProgramCache]: Analyzing trace with hash 1792916809, now seen corresponding path program 4 times [2020-04-18 16:12:32,865 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-18 16:12:32,865 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [732520775] [2020-04-18 16:12:32,865 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-18 16:12:32,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-18 16:12:32,992 INFO L134 CoverageAnalysis]: Checked inductivity of 71 backedges. 6 proven. 65 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-04-18 16:12:32,993 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [732520775] [2020-04-18 16:12:32,993 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1465806532] [2020-04-18 16:12:32,993 INFO L92 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-04-18 16:12:33,117 INFO L249 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2020-04-18 16:12:33,117 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2020-04-18 16:12:33,119 INFO L264 TraceCheckSpWp]: Trace formula consists of 256 conjuncts, 6 conjunts are in the unsatisfiable core [2020-04-18 16:12:33,129 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2020-04-18 16:12:33,183 INFO L134 CoverageAnalysis]: Checked inductivity of 71 backedges. 6 proven. 65 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-04-18 16:12:33,183 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-04-18 16:12:33,184 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 9 [2020-04-18 16:12:33,184 INFO L201 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-04-18 16:12:33,216 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 16:12:33,270 INFO L259 McrAutomatonBuilder]: Finished intersection with 119 states and 118 transitions. [2020-04-18 16:12:33,270 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-04-18 16:12:33,310 INFO L356 McrAutomatonBuilder]: Construction finished. Needed to calculate wp 0 times. [2020-04-18 16:12:33,310 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-04-18 16:12:33,310 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2020-04-18 16:12:33,310 INFO L87 Difference]: Start difference. First operand 119 states. Second operand 9 states. [2020-04-18 16:12:33,367 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 16:12:33,367 INFO L93 Difference]: Finished difference Result 119 states and 118 transitions. [2020-04-18 16:12:33,367 INFO L276 IsEmpty]: Start isEmpty. Operand 119 states and 118 transitions. [2020-04-18 16:12:33,368 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-04-18 16:12:33,368 INFO L354 FreeRefinementEngine]: Using interpolant generator StrategyModuleMcr [2124001766] [2020-04-18 16:12:33,368 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-04-18 16:12:33,369 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-04-18 16:12:33,369 INFO L156 tionRefinementEngine]: Using interpolant automaton builder StrategyModuleMcr [2124001766] [2020-04-18 16:12:33,369 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-04-18 16:12:33,369 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy MCR [2020-04-18 16:12:33,369 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-04-18 16:12:33,370 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=101, Unknown=0, NotChecked=0, Total=156 [2020-04-18 16:12:33,370 INFO L87 Difference]: Start difference. First operand 7789 states and 19845 transitions. Second operand 9 states. [2020-04-18 16:12:33,466 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 16:12:33,467 INFO L93 Difference]: Finished difference Result 10867 states and 27556 transitions. [2020-04-18 16:12:33,467 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-04-18 16:12:33,467 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 118 [2020-04-18 16:12:33,467 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-04-18 16:12:33,485 INFO L225 Difference]: With dead ends: 10867 [2020-04-18 16:12:33,485 INFO L226 Difference]: Without dead ends: 10867 [2020-04-18 16:12:33,488 INFO L678 BasicCegarLoop]: 0 DeclaredPredicates, 242 GetRequests, 231 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=55, Invalid=101, Unknown=0, NotChecked=0, Total=156 [2020-04-18 16:12:33,513 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10867 states. [2020-04-18 16:12:33,665 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10867 to 9559. [2020-04-18 16:12:33,665 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9559 states. [2020-04-18 16:12:33,685 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9559 states to 9559 states and 24413 transitions. [2020-04-18 16:12:33,685 INFO L78 Accepts]: Start accepts. Automaton has 9559 states and 24413 transitions. Word has length 118 [2020-04-18 16:12:33,686 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-04-18 16:12:33,686 INFO L479 AbstractCegarLoop]: Abstraction has 9559 states and 24413 transitions. [2020-04-18 16:12:33,686 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-04-18 16:12:33,686 INFO L276 IsEmpty]: Start isEmpty. Operand 9559 states and 24413 transitions. [2020-04-18 16:12:33,700 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2020-04-18 16:12:33,700 INFO L417 BasicCegarLoop]: Found error trace [2020-04-18 16:12:33,700 INFO L425 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-04-18 16:12:33,905 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-04-18 16:12:33,905 INFO L427 AbstractCegarLoop]: === Iteration 9 === [t1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION, t1Err0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-04-18 16:12:33,906 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 16:12:33,906 INFO L82 PathProgramCache]: Analyzing trace with hash -1525098437, now seen corresponding path program 1 times [2020-04-18 16:12:33,906 INFO L163 FreeRefinementEngine]: Executing refinement strategy MCR [2020-04-18 16:12:33,907 INFO L354 FreeRefinementEngine]: Using trace check StrategyModuleMcr [2052263033] [2020-04-18 16:12:33,915 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 16:12:33,979 INFO L259 McrAutomatonBuilder]: Finished intersection with 2316 states and 4511 transitions. [2020-04-18 16:12:33,990 INFO L276 IsEmpty]: Start isEmpty. Operand 2316 states. [2020-04-18 16:12:33,997 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2020-04-18 16:12:33,997 INFO L105 Mcr]: ---- MCR iteration 0 ---- [2020-04-18 16:12:33,998 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 16:12:33,998 INFO L82 PathProgramCache]: Analyzing trace with hash 911560601, now seen corresponding path program 2 times [2020-04-18 16:12:33,998 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-18 16:12:33,998 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [458800242] [2020-04-18 16:12:33,999 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-18 16:12:34,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-18 16:12:34,035 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2020-04-18 16:12:34,036 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [458800242] [2020-04-18 16:12:34,036 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-18 16:12:34,036 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-04-18 16:12:34,037 INFO L201 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-04-18 16:12:34,063 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 16:12:34,556 INFO L259 McrAutomatonBuilder]: Finished intersection with 576 states and 1031 transitions. [2020-04-18 16:12:34,557 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-04-18 16:12:34,565 INFO L356 McrAutomatonBuilder]: Construction finished. Needed to calculate wp 0 times. [2020-04-18 16:12:34,566 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-04-18 16:12:34,566 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-04-18 16:12:34,566 INFO L87 Difference]: Start difference. First operand 2316 states. Second operand 3 states. [2020-04-18 16:12:34,583 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 16:12:34,583 INFO L93 Difference]: Finished difference Result 2520 states and 4864 transitions. [2020-04-18 16:12:34,583 INFO L276 IsEmpty]: Start isEmpty. Operand 2520 states and 4864 transitions. [2020-04-18 16:12:34,588 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2020-04-18 16:12:34,589 INFO L105 Mcr]: ---- MCR iteration 1 ---- [2020-04-18 16:12:34,589 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 16:12:34,589 INFO L82 PathProgramCache]: Analyzing trace with hash 1332311561, now seen corresponding path program 3 times [2020-04-18 16:12:34,589 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-18 16:12:34,590 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [915780039] [2020-04-18 16:12:34,590 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-18 16:12:34,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-18 16:12:34,663 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-04-18 16:12:34,663 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [915780039] [2020-04-18 16:12:34,663 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-18 16:12:34,664 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-04-18 16:12:34,664 INFO L201 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-04-18 16:12:34,690 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 16:12:34,976 INFO L259 McrAutomatonBuilder]: Finished intersection with 449 states and 777 transitions. [2020-04-18 16:12:34,976 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-04-18 16:12:35,028 INFO L356 McrAutomatonBuilder]: Construction finished. Needed to calculate wp 15 times. [2020-04-18 16:12:35,029 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-04-18 16:12:35,029 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2020-04-18 16:12:35,029 INFO L87 Difference]: Start difference. First operand 2520 states and 4864 transitions. Second operand 8 states. [2020-04-18 16:12:35,125 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 16:12:35,125 INFO L93 Difference]: Finished difference Result 2959 states and 5661 transitions. [2020-04-18 16:12:35,125 INFO L276 IsEmpty]: Start isEmpty. Operand 2959 states and 5661 transitions. [2020-04-18 16:12:35,130 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2020-04-18 16:12:35,131 INFO L105 Mcr]: ---- MCR iteration 2 ---- [2020-04-18 16:12:35,131 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 16:12:35,131 INFO L82 PathProgramCache]: Analyzing trace with hash -1525098437, now seen corresponding path program 4 times [2020-04-18 16:12:35,131 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-18 16:12:35,131 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [199660270] [2020-04-18 16:12:35,132 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-18 16:12:35,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-04-18 16:12:35,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-04-18 16:12:35,322 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-04-18 16:12:35,325 INFO L174 FreeRefinementEngine]: Strategy MCR found a feasible trace [2020-04-18 16:12:35,325 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-04-18 16:12:35,487 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 18.04 04:12:35 BasicIcfg [2020-04-18 16:12:35,487 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-04-18 16:12:35,489 INFO L168 Benchmark]: Toolchain (without parser) took 187630.89 ms. Allocated memory was 138.4 MB in the beginning and 1.4 GB in the end (delta: 1.3 GB). Free memory was 101.4 MB in the beginning and 510.4 MB in the end (delta: -408.9 MB). Peak memory consumption was 859.3 MB. Max. memory is 7.1 GB. [2020-04-18 16:12:35,490 INFO L168 Benchmark]: CDTParser took 0.14 ms. Allocated memory is still 138.4 MB. Free memory was 121.5 MB in the beginning and 121.3 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2020-04-18 16:12:35,490 INFO L168 Benchmark]: CACSL2BoogieTranslator took 984.48 ms. Allocated memory was 138.4 MB in the beginning and 202.4 MB in the end (delta: 64.0 MB). Free memory was 99.4 MB in the beginning and 133.3 MB in the end (delta: -33.8 MB). Peak memory consumption was 35.4 MB. Max. memory is 7.1 GB. [2020-04-18 16:12:35,491 INFO L168 Benchmark]: Boogie Procedure Inliner took 124.26 ms. Allocated memory is still 202.4 MB. Free memory was 133.3 MB in the beginning and 130.5 MB in the end (delta: 2.8 MB). Peak memory consumption was 2.8 MB. Max. memory is 7.1 GB. [2020-04-18 16:12:35,491 INFO L168 Benchmark]: Boogie Preprocessor took 53.63 ms. Allocated memory is still 202.4 MB. Free memory was 130.5 MB in the beginning and 128.5 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 7.1 GB. [2020-04-18 16:12:35,492 INFO L168 Benchmark]: RCFGBuilder took 666.17 ms. Allocated memory is still 202.4 MB. Free memory was 128.5 MB in the beginning and 95.3 MB in the end (delta: 33.2 MB). Peak memory consumption was 33.2 MB. Max. memory is 7.1 GB. [2020-04-18 16:12:35,493 INFO L168 Benchmark]: TraceAbstraction took 185782.01 ms. Allocated memory was 202.4 MB in the beginning and 1.4 GB in the end (delta: 1.2 GB). Free memory was 94.6 MB in the beginning and 510.4 MB in the end (delta: -415.8 MB). Peak memory consumption was 788.5 MB. Max. memory is 7.1 GB. [2020-04-18 16:12:35,501 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.14 ms. Allocated memory is still 138.4 MB. Free memory was 121.5 MB in the beginning and 121.3 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 984.48 ms. Allocated memory was 138.4 MB in the beginning and 202.4 MB in the end (delta: 64.0 MB). Free memory was 99.4 MB in the beginning and 133.3 MB in the end (delta: -33.8 MB). Peak memory consumption was 35.4 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 124.26 ms. Allocated memory is still 202.4 MB. Free memory was 133.3 MB in the beginning and 130.5 MB in the end (delta: 2.8 MB). Peak memory consumption was 2.8 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 53.63 ms. Allocated memory is still 202.4 MB. Free memory was 130.5 MB in the beginning and 128.5 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 7.1 GB. * RCFGBuilder took 666.17 ms. Allocated memory is still 202.4 MB. Free memory was 128.5 MB in the beginning and 95.3 MB in the end (delta: 33.2 MB). Peak memory consumption was 33.2 MB. Max. memory is 7.1 GB. * TraceAbstraction took 185782.01 ms. Allocated memory was 202.4 MB in the beginning and 1.4 GB in the end (delta: 1.2 GB). Free memory was 94.6 MB in the beginning and 510.4 MB in the end (delta: -415.8 MB). Peak memory consumption was 788.5 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 922]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L916] 0 static int top=0; VAL [top=0] [L917] 0 static unsigned int arr[(800)]; VAL [arr={6:0}, top=0] [L918] 0 pthread_mutex_t m; VAL [arr={6:0}, m={7:0}, top=0] [L919] 0 _Bool flag=(0); VAL [arr={6:0}, flag=0, m={7:0}, top=0] [L1001] 0 pthread_t id1, id2; VAL [arr={6:0}, flag=0, m={7:0}, top=0] [L1003] FCALL, FORK 0 pthread_create(&id1, ((void *)0), t1, ((void *)0)) VAL [arr={6:0}, flag=0, m={7:0}, top=0] [L1004] FCALL, FORK 0 pthread_create(&id2, ((void *)0), t2, ((void *)0)) VAL [arr={6:0}, flag=0, m={7:0}, top=0] [L986] 2 int i; VAL [arr={6:0}, flag=0, m={7:0}, top=0] [L987] 2 i=0 VAL [arr={6:0}, flag=0, m={7:0}, top=0] [L987] COND TRUE 2 i<(800) VAL [arr={6:0}, flag=0, m={7:0}, top=0] [L970] 1 int i; VAL [arr={6:0}, flag=0, m={7:0}, top=0] [L971] 1 unsigned int tmp; VAL [arr={6:0}, flag=0, m={7:0}, top=0] [L972] 1 i=0 VAL [arr={6:0}, flag=0, m={7:0}, top=0] [L972] COND TRUE 1 i<(800) VAL [arr={6:0}, flag=0, m={7:0}, top=0] [L975] 1 tmp = __VERIFIER_nondet_uint() VAL [arr={6:0}, flag=0, m={7:0}, top=0] [L4] COND FALSE 1 !(!cond) VAL [arr={6:0}, flag=0, m={7:0}, top=0] [L942] COND FALSE 1 !(top==(800)) VAL [arr={6:0}, flag=0, m={7:0}, top=0] [L934] 1 return top; VAL [arr={6:0}, flag=0, m={7:0}, top=0] [L949] 1 stack[get_top()] = x VAL [arr={6:0}, flag=0, m={7:0}, top=0] [L926] 1 top++ VAL [arr={6:0}, flag=0, m={7:0}, top=1] [L952] 1 return 0; VAL [arr={6:0}, flag=0, m={7:0}, top=1] [L977] COND FALSE 1 !(push(arr,tmp)==(-1)) VAL [arr={6:0}, flag=0, m={7:0}, top=1] [L979] 1 flag=(1) VAL [arr={6:0}, flag=1, m={7:0}, top=1] [L990] COND TRUE 2 \read(flag) VAL [arr={6:0}, flag=1, m={7:0}, top=1] [L934] 2 return top; VAL [arr={6:0}, flag=1, m={7:0}, top=1] [L956] COND FALSE 2 !(get_top()==0) VAL [arr={6:0}, flag=1, m={7:0}, top=1] [L930] 2 top-- VAL [arr={6:0}, flag=1, m={7:0}, top=0] [L934] 2 return top; VAL [arr={6:0}, flag=1, m={7:0}, top=0] [L964] EXPR 2 stack[get_top()] VAL [arr={6:0}, flag=1, m={7:0}, top=0] [L964] 2 return stack[get_top()]; VAL [arr={6:0}, flag=1, m={7:0}, top=0] [L992] COND FALSE 2 !(!(pop(arr)!=(-2))) VAL [arr={6:0}, flag=1, m={7:0}, top=0] [L987] 2 i++ VAL [arr={6:0}, flag=1, m={7:0}, top=0] [L987] COND TRUE 2 i<(800) VAL [arr={6:0}, flag=1, m={7:0}, top=0] [L990] COND TRUE 2 \read(flag) VAL [arr={6:0}, flag=1, m={7:0}, top=0] [L934] 2 return top; VAL [arr={6:0}, flag=1, m={7:0}, top=0] [L956] COND TRUE 2 get_top()==0 VAL [arr={6:0}, flag=1, m={7:0}, top=0] [L959] 2 return (-2); VAL [arr={6:0}, flag=1, m={7:0}, top=0] [L992] COND TRUE 2 !(pop(arr)!=(-2)) VAL [arr={6:0}, flag=1, m={7:0}, top=0] [L922] 2 __VERIFIER_error() VAL [arr={6:0}, flag=1, m={7:0}, top=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 134 locations, 2 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 185.4s, OverallIterations: 9, TraceHistogramMax: 3, AutomataDifference: 53.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.3s, HoareTripleCheckerStatistics: 1819 SDtfs, 5917 SDslu, 15747 SDs, 0 SdLazy, 4335 SolverSat, 261 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 9.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 1560 GetRequests, 1160 SyntacticMatches, 1 SemanticMatches, 399 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 43093 ImplicationChecksByTransitivity, 123.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=10774occurred in iteration=4, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 2.5s AutomataMinimizationTime, 8 MinimizatonAttempts, 27000 StatesRemovedByMinimization, 8 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: No data available, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Received shutdown request...