/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-SemanticLbe-McrStrategy.epf -i ../../../trunk/examples/svcomp/pthread/queue_ok.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-b981219 [2020-04-18 07:31:50,542 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-04-18 07:31:50,544 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-04-18 07:31:50,561 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-04-18 07:31:50,562 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-04-18 07:31:50,563 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-04-18 07:31:50,565 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-04-18 07:31:50,577 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-04-18 07:31:50,579 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-04-18 07:31:50,580 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-04-18 07:31:50,582 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-04-18 07:31:50,584 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-04-18 07:31:50,584 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-04-18 07:31:50,587 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-04-18 07:31:50,590 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-04-18 07:31:50,592 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-04-18 07:31:50,594 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-04-18 07:31:50,596 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-04-18 07:31:50,597 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-04-18 07:31:50,602 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-04-18 07:31:50,607 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-04-18 07:31:50,610 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-04-18 07:31:50,612 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-04-18 07:31:50,613 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-04-18 07:31:50,615 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-04-18 07:31:50,616 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-04-18 07:31:50,616 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-04-18 07:31:50,618 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-04-18 07:31:50,619 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-04-18 07:31:50,620 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-04-18 07:31:50,620 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-04-18 07:31:50,621 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-04-18 07:31:50,622 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-04-18 07:31:50,623 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-04-18 07:31:50,625 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-04-18 07:31:50,625 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-04-18 07:31:50,626 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-04-18 07:31:50,626 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-04-18 07:31:50,626 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-04-18 07:31:50,629 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-04-18 07:31:50,630 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-04-18 07:31:50,631 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-SemanticLbe-McrStrategy.epf [2020-04-18 07:31:50,652 INFO L113 SettingsManager]: Loading preferences was successful [2020-04-18 07:31:50,652 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-04-18 07:31:50,654 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-04-18 07:31:50,655 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-04-18 07:31:50,655 INFO L138 SettingsManager]: * Use SBE=true [2020-04-18 07:31:50,655 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-04-18 07:31:50,655 INFO L138 SettingsManager]: * sizeof long=4 [2020-04-18 07:31:50,655 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-04-18 07:31:50,656 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-04-18 07:31:50,656 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-04-18 07:31:50,657 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-04-18 07:31:50,657 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-04-18 07:31:50,657 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-04-18 07:31:50,658 INFO L138 SettingsManager]: * sizeof long double=12 [2020-04-18 07:31:50,658 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-04-18 07:31:50,658 INFO L138 SettingsManager]: * Use constant arrays=true [2020-04-18 07:31:50,658 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-04-18 07:31:50,659 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-04-18 07:31:50,659 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-04-18 07:31:50,659 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-04-18 07:31:50,659 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-04-18 07:31:50,659 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-04-18 07:31:50,660 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-04-18 07:31:50,660 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-04-18 07:31:50,660 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-04-18 07:31:50,660 INFO L138 SettingsManager]: * Trace refinement strategy=MCR [2020-04-18 07:31:50,661 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-04-18 07:31:50,661 INFO L138 SettingsManager]: * Trace refinement strategy used in MCR=CAMEL [2020-04-18 07:31:50,661 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-04-18 07:31:50,661 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-04-18 07:31:50,976 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-04-18 07:31:50,988 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-04-18 07:31:50,992 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-04-18 07:31:50,994 INFO L271 PluginConnector]: Initializing CDTParser... [2020-04-18 07:31:50,994 INFO L275 PluginConnector]: CDTParser initialized [2020-04-18 07:31:50,995 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread/queue_ok.i [2020-04-18 07:31:51,074 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b07493d1f/e204f417bb864325a5f0eccc1f6a8ce1/FLAG322fa7e88 [2020-04-18 07:31:51,603 INFO L306 CDTParser]: Found 1 translation units. [2020-04-18 07:31:51,604 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread/queue_ok.i [2020-04-18 07:31:51,629 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b07493d1f/e204f417bb864325a5f0eccc1f6a8ce1/FLAG322fa7e88 [2020-04-18 07:31:51,885 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b07493d1f/e204f417bb864325a5f0eccc1f6a8ce1 [2020-04-18 07:31:51,894 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-04-18 07:31:51,911 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2020-04-18 07:31:51,913 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-04-18 07:31:51,913 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-04-18 07:31:51,919 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-04-18 07:31:51,920 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.04 07:31:51" (1/1) ... [2020-04-18 07:31:51,923 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1aad5f24 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 07:31:51, skipping insertion in model container [2020-04-18 07:31:51,923 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.04 07:31:51" (1/1) ... [2020-04-18 07:31:51,932 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-04-18 07:31:51,996 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-04-18 07:31:52,560 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-04-18 07:31:52,575 INFO L203 MainTranslator]: Completed pre-run [2020-04-18 07:31:52,639 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-04-18 07:31:52,801 INFO L208 MainTranslator]: Completed translation [2020-04-18 07:31:52,801 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 07:31:52 WrapperNode [2020-04-18 07:31:52,801 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-04-18 07:31:52,802 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-04-18 07:31:52,802 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-04-18 07:31:52,803 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-04-18 07:31:52,812 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 07:31:52" (1/1) ... [2020-04-18 07:31:52,836 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 07:31:52" (1/1) ... [2020-04-18 07:31:52,868 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-04-18 07:31:52,869 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-04-18 07:31:52,869 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-04-18 07:31:52,869 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-04-18 07:31:52,879 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 07:31:52" (1/1) ... [2020-04-18 07:31:52,879 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 07:31:52" (1/1) ... [2020-04-18 07:31:52,885 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 07:31:52" (1/1) ... [2020-04-18 07:31:52,885 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 07:31:52" (1/1) ... [2020-04-18 07:31:52,896 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 07:31:52" (1/1) ... [2020-04-18 07:31:52,901 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 07:31:52" (1/1) ... [2020-04-18 07:31:52,904 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 07:31:52" (1/1) ... [2020-04-18 07:31:52,909 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-04-18 07:31:52,909 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-04-18 07:31:52,909 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-04-18 07:31:52,910 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-04-18 07:31:52,911 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 07:31:52" (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 07:31:53,009 INFO L130 BoogieDeclarations]: Found specification of procedure t1 [2020-04-18 07:31:53,009 INFO L138 BoogieDeclarations]: Found implementation of procedure t1 [2020-04-18 07:31:53,009 INFO L130 BoogieDeclarations]: Found specification of procedure t2 [2020-04-18 07:31:53,010 INFO L138 BoogieDeclarations]: Found implementation of procedure t2 [2020-04-18 07:31:53,010 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-04-18 07:31:53,010 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-04-18 07:31:53,010 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-04-18 07:31:53,011 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-04-18 07:31:53,011 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2020-04-18 07:31:53,011 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-04-18 07:31:53,011 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-04-18 07:31:53,012 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-04-18 07:31:53,014 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 07:31:53,984 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-04-18 07:31:53,984 INFO L295 CfgBuilder]: Removed 16 assume(true) statements. [2020-04-18 07:31:53,988 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.04 07:31:53 BoogieIcfgContainer [2020-04-18 07:31:53,988 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-04-18 07:31:53,990 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-04-18 07:31:53,990 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-04-18 07:31:53,994 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-04-18 07:31:53,994 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.04 07:31:51" (1/3) ... [2020-04-18 07:31:53,995 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2a77938a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.04 07:31:53, skipping insertion in model container [2020-04-18 07:31:53,996 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 07:31:52" (2/3) ... [2020-04-18 07:31:53,997 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2a77938a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.04 07:31:53, skipping insertion in model container [2020-04-18 07:31:53,997 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.04 07:31:53" (3/3) ... [2020-04-18 07:31:54,000 INFO L109 eAbstractionObserver]: Analyzing ICFG queue_ok.i [2020-04-18 07:31:54,010 WARN L146 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2020-04-18 07:31:54,010 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-04-18 07:31:54,017 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 2 error locations. [2020-04-18 07:31:54,018 INFO L340 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2020-04-18 07:31:54,052 WARN L315 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:31:54,052 WARN L315 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:31:54,053 WARN L315 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:31:54,053 WARN L315 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:31:54,053 WARN L315 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~value~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:31:54,054 WARN L315 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:31:54,054 WARN L315 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~nondet50| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:31:54,054 WARN L315 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~nondet50| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:31:54,054 WARN L315 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:31:54,055 WARN L315 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:31:54,055 WARN L315 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:31:54,055 WARN L315 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:31:54,055 WARN L315 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:31:54,055 WARN L315 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~nondet52| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:31:54,056 WARN L315 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~nondet52| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:31:54,056 WARN L315 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~value~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:31:54,056 WARN L315 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~nondet52| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:31:54,056 WARN L315 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~value~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:31:54,056 WARN L315 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_enqueue_#in~q.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:31:54,057 WARN L315 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_enqueue_#in~q.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:31:54,057 WARN L315 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_enqueue_#in~x| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:31:54,057 WARN L315 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_enqueue_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:31:54,057 WARN L315 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_enqueue_#t~post39| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:31:54,057 WARN L315 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_enqueue_~x not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:31:54,057 WARN L315 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_enqueue_#t~mem40| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:31:54,058 WARN L315 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_enqueue_#t~mem41| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:31:54,058 WARN L315 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_enqueue_#t~mem38| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:31:54,058 WARN L315 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_enqueue_#t~mem37| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:31:54,058 WARN L315 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_enqueue_~q.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:31:54,058 WARN L315 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_enqueue_#t~post42| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:31:54,059 WARN L315 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_enqueue_~q.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:31:54,059 WARN L315 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_enqueue_#in~q.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:31:54,059 WARN L315 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_enqueue_#in~q.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:31:54,059 WARN L315 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_enqueue_~q.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:31:54,059 WARN L315 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_enqueue_~q.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:31:54,059 WARN L315 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_enqueue_#in~x| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:31:54,060 WARN L315 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_enqueue_~x not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:31:54,060 WARN L315 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_enqueue_~q.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:31:54,060 WARN L315 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_enqueue_~q.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:31:54,060 WARN L315 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_enqueue_#t~mem37| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:31:54,060 WARN L315 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_enqueue_~x not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:31:54,061 WARN L315 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_enqueue_~q.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:31:54,061 WARN L315 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_enqueue_#t~mem37| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:31:54,061 WARN L315 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_enqueue_~q.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:31:54,061 WARN L315 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_enqueue_#t~mem37| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:31:54,061 WARN L315 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_enqueue_~q.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:31:54,062 WARN L315 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_enqueue_~q.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:31:54,062 WARN L315 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_enqueue_#t~mem38| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:31:54,062 WARN L315 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_enqueue_#t~mem38| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:31:54,062 WARN L315 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_enqueue_#t~post39| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:31:54,062 WARN L315 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_enqueue_#t~post39| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:31:54,063 WARN L315 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_enqueue_~q.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:31:54,063 WARN L315 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_enqueue_~q.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:31:54,063 WARN L315 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_enqueue_#t~post39| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:31:54,063 WARN L315 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_enqueue_#t~mem38| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:31:54,063 WARN L315 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_enqueue_~q.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:31:54,063 WARN L315 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_enqueue_~q.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:31:54,064 WARN L315 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_enqueue_#t~mem40| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:31:54,064 WARN L315 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_enqueue_#t~mem40| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:31:54,064 WARN L315 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_enqueue_#t~mem40| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:31:54,064 WARN L315 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_enqueue_#t~mem40| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:31:54,064 WARN L315 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_enqueue_#t~mem40| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:31:54,065 WARN L315 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_enqueue_~q.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:31:54,065 WARN L315 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_enqueue_~q.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:31:54,065 WARN L315 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_enqueue_~q.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:31:54,065 WARN L315 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_enqueue_~q.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:31:54,065 WARN L315 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_enqueue_#t~mem41| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:31:54,066 WARN L315 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_enqueue_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:31:54,066 WARN L315 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_enqueue_#t~mem41| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:31:54,066 WARN L315 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_enqueue_#t~post42| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:31:54,066 WARN L315 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_enqueue_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:31:54,066 WARN L315 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~ret53| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:31:54,067 WARN L315 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_enqueue_~q.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:31:54,067 WARN L315 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_enqueue_#t~post42| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:31:54,067 WARN L315 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_enqueue_~q.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:31:54,067 WARN L315 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~ret53| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:31:54,067 WARN L315 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_enqueue_#t~mem41| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:31:54,068 WARN L315 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~ret53| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:31:54,068 WARN L315 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_enqueue_#t~post42| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:31:54,068 WARN L315 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:31:54,068 WARN L315 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~value~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:31:54,068 WARN L315 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:31:54,068 WARN L315 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~post51| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:31:54,069 WARN L315 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~post51| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:31:54,069 WARN L315 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:31:54,069 WARN L315 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~post51| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:31:54,070 WARN L315 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:31:54,071 WARN L315 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:31:54,071 WARN L315 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:31:54,071 WARN L315 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:31:54,071 WARN L315 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:31:54,071 WARN L315 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#t~nondet54| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:31:54,072 WARN L315 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#t~nondet54| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:31:54,072 WARN L315 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:31:54,072 WARN L315 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:31:54,073 WARN L315 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:31:54,073 WARN L315 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:31:54,073 WARN L315 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:31:54,073 WARN L315 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_empty_#in~q.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:31:54,073 WARN L315 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_empty_#in~q.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:31:54,074 WARN L315 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_empty_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:31:54,074 WARN L315 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_empty_#t~mem30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:31:54,074 WARN L315 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_empty_#t~nondet32| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:31:54,074 WARN L315 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_empty_~q.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:31:54,074 WARN L315 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_empty_~q.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:31:54,074 WARN L315 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_empty_#t~mem31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:31:54,075 WARN L315 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_empty_#in~q.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:31:54,075 WARN L315 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_empty_#in~q.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:31:54,075 WARN L315 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_empty_~q.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:31:54,075 WARN L315 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_empty_~q.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:31:54,075 WARN L315 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_empty_~q.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:31:54,076 WARN L315 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_empty_~q.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:31:54,076 WARN L315 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_empty_#t~mem30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:31:54,076 WARN L315 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_empty_~q.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:31:54,076 WARN L315 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_empty_~q.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:31:54,076 WARN L315 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_empty_#t~mem31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:31:54,077 WARN L315 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_empty_#t~mem30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:31:54,077 WARN L315 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_empty_#t~mem31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:31:54,077 WARN L315 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_empty_#t~mem30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:31:54,077 WARN L315 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_empty_#t~mem31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:31:54,077 WARN L315 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_empty_#t~mem31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:31:54,077 WARN L315 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_empty_#t~mem31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:31:54,078 WARN L315 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_empty_#t~mem30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:31:54,078 WARN L315 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_empty_#t~mem30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:31:54,078 WARN L315 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_empty_#t~nondet32| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:31:54,078 WARN L315 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_empty_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:31:54,078 WARN L315 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_empty_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:31:54,079 WARN L315 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_empty_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:31:54,079 WARN L315 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#t~ret56| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:31:54,079 WARN L315 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#t~ret56| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:31:54,079 WARN L315 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#t~ret56| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:31:54,079 WARN L315 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#t~ret56| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:31:54,080 WARN L315 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#t~ret56| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:31:54,080 WARN L315 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#t~ret56| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:31:54,080 WARN L315 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_dequeue_#in~q.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:31:54,080 WARN L315 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_dequeue_#in~q.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:31:54,080 WARN L315 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:31:54,080 WARN L315 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#t~post55| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:31:54,081 WARN L315 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_dequeue_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:31:54,081 WARN L315 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#t~post55| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:31:54,081 WARN L315 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:31:54,081 WARN L315 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_dequeue_#t~post46| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:31:54,081 WARN L315 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_dequeue_~x~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:31:54,082 WARN L315 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_dequeue_~q.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:31:54,082 WARN L315 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_dequeue_#t~mem44| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:31:54,082 WARN L315 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_dequeue_#t~mem43| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:31:54,082 WARN L315 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_dequeue_#t~post49| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:31:54,082 WARN L315 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_dequeue_~q.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:31:54,082 WARN L315 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_dequeue_#t~mem45| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:31:54,083 WARN L315 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_dequeue_#t~mem48| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:31:54,083 WARN L315 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_dequeue_#t~mem47| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:31:54,083 WARN L315 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#t~post55| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:31:54,083 WARN L315 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_dequeue_#in~q.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:31:54,083 WARN L315 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_dequeue_#in~q.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:31:54,083 WARN L315 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_dequeue_~q.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:31:54,084 WARN L315 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_dequeue_~q.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:31:54,084 WARN L315 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_dequeue_~x~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:31:54,084 WARN L315 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_dequeue_~q.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:31:54,084 WARN L315 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_dequeue_~q.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:31:54,084 WARN L315 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_dequeue_#t~mem43| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:31:54,085 WARN L315 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_dequeue_~q.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:31:54,085 WARN L315 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_dequeue_~q.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:31:54,085 WARN L315 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_dequeue_#t~mem43| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:31:54,085 WARN L315 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_dequeue_#t~mem44| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:31:54,085 WARN L315 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_dequeue_#t~mem44| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:31:54,085 WARN L315 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_dequeue_~x~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:31:54,086 WARN L315 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_dequeue_#t~mem43| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:31:54,086 WARN L315 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_dequeue_#t~mem44| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:31:54,086 WARN L315 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_dequeue_~q.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:31:54,086 WARN L315 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_dequeue_~q.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:31:54,086 WARN L315 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_dequeue_#t~mem45| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:31:54,087 WARN L315 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_dequeue_#t~mem45| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:31:54,087 WARN L315 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_dequeue_#t~post46| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:31:54,087 WARN L315 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_dequeue_#t~post46| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:31:54,087 WARN L315 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_dequeue_~q.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:31:54,087 WARN L315 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_dequeue_~q.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:31:54,088 WARN L315 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_dequeue_#t~mem45| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:31:54,088 WARN L315 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_dequeue_#t~post46| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:31:54,088 WARN L315 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_dequeue_~q.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:31:54,088 WARN L315 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_dequeue_~q.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:31:54,088 WARN L315 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_dequeue_#t~mem47| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:31:54,088 WARN L315 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_dequeue_#t~mem47| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:31:54,089 WARN L315 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_dequeue_#t~mem47| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:31:54,089 WARN L315 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_dequeue_#t~mem47| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:31:54,089 WARN L315 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_dequeue_#t~mem47| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:31:54,089 WARN L315 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_dequeue_~q.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:31:54,089 WARN L315 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_dequeue_~q.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:31:54,090 WARN L315 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_dequeue_~q.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:31:54,090 WARN L315 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_dequeue_~q.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:31:54,090 WARN L315 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_dequeue_#t~mem48| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:31:54,090 WARN L315 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_dequeue_~x~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:31:54,090 WARN L315 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_dequeue_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:31:54,091 WARN L315 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_dequeue_#t~mem48| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:31:54,091 WARN L315 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_dequeue_#t~post49| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:31:54,091 WARN L315 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_dequeue_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:31:54,091 WARN L315 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#t~ret57| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:31:54,091 WARN L315 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_dequeue_~q.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:31:54,091 WARN L315 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_dequeue_#t~post49| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:31:54,092 WARN L315 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_dequeue_~q.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:31:54,092 WARN L315 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#t~ret57| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:31:54,092 WARN L315 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_dequeue_#t~mem48| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:31:54,092 WARN L315 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:31:54,092 WARN L315 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#t~mem58| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:31:54,093 WARN L315 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_dequeue_#t~post49| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:31:54,093 WARN L315 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#t~mem58| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:31:54,093 WARN L315 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#t~ret57| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:31:54,093 WARN L315 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#t~mem58| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:31:54,093 WARN L315 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#t~ret57| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:31:54,094 WARN L315 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#t~ret57| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:31:54,094 WARN L315 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#t~ret57| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:31:54,094 WARN L315 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#t~mem58| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:31:54,094 WARN L315 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#t~mem58| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:31:54,098 WARN L315 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_enqueue_~q.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:31:54,098 WARN L315 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_enqueue_#t~mem41| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:31:54,098 WARN L315 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~nondet50| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:31:54,098 WARN L315 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~ret53| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:31:54,098 WARN L315 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_enqueue_#t~mem40| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:31:54,099 WARN L315 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~nondet52| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:31:54,099 WARN L315 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:31:54,099 WARN L315 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_enqueue_#in~q.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:31:54,099 WARN L315 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_enqueue_#t~post42| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:31:54,099 WARN L315 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_enqueue_#in~x| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:31:54,100 WARN L315 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:31:54,100 WARN L315 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_enqueue_#t~post39| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:31:54,100 WARN L315 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~value~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:31:54,100 WARN L315 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:31:54,100 WARN L315 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_enqueue_~x not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:31:54,100 WARN L315 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_enqueue_~q.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:31:54,101 WARN L315 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~post51| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:31:54,101 WARN L315 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:31:54,101 WARN L315 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_enqueue_#t~mem38| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:31:54,101 WARN L315 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_enqueue_#in~q.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:31:54,101 WARN L315 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_enqueue_#t~mem37| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:31:54,102 WARN L315 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:31:54,102 WARN L315 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_enqueue_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:31:54,107 WARN L315 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#t~nondet54| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:31:54,107 WARN L315 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:31:54,108 WARN L315 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:31:54,108 WARN L315 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#t~ret57| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:31:54,108 WARN L315 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#t~ret56| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:31:54,108 WARN L315 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_dequeue_#t~post49| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:31:54,108 WARN L315 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_empty_~q.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:31:54,109 WARN L315 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_empty_#t~mem31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:31:54,109 WARN L315 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_empty_#t~mem30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:31:54,109 WARN L315 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_dequeue_#t~post46| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:31:54,109 WARN L315 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_empty_~q.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:31:54,109 WARN L315 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:31:54,109 WARN L315 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_dequeue_#in~q.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:31:54,110 WARN L315 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_dequeue_#t~mem47| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:31:54,110 WARN L315 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_dequeue_#t~mem45| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:31:54,110 WARN L315 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_dequeue_#t~mem44| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:31:54,110 WARN L315 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_dequeue_~q.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:31:54,110 WARN L315 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_empty_#in~q.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:31:54,111 WARN L315 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#t~post55| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:31:54,111 WARN L315 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_dequeue_#t~mem48| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:31:54,111 WARN L315 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_dequeue_~q.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:31:54,111 WARN L315 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_dequeue_#t~mem43| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:31:54,111 WARN L315 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:31:54,112 WARN L315 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_empty_#in~q.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:31:54,112 WARN L315 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_dequeue_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:31:54,112 WARN L315 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#t~mem58| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:31:54,112 WARN L315 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_empty_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:31:54,112 WARN L315 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_empty_#t~nondet32| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:31:54,112 WARN L315 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:31:54,113 WARN L315 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_dequeue_~x~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:31:54,113 WARN L315 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_dequeue_#in~q.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:31:54,139 INFO L251 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2020-04-18 07:31:54,160 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-04-18 07:31:54,160 INFO L376 AbstractCegarLoop]: Hoare is true [2020-04-18 07:31:54,160 INFO L377 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-04-18 07:31:54,160 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-04-18 07:31:54,160 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-04-18 07:31:54,161 INFO L380 AbstractCegarLoop]: Difference is false [2020-04-18 07:31:54,161 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-04-18 07:31:54,161 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-04-18 07:31:54,190 INFO L152 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 196 places, 204 transitions, 430 flow [2020-04-18 07:31:54,192 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 196 places, 204 transitions, 430 flow [2020-04-18 07:31:54,307 INFO L129 PetriNetUnfolder]: 14/204 cut-off events. [2020-04-18 07:31:54,308 INFO L130 PetriNetUnfolder]: For 4/4 co-relation queries the response was YES. [2020-04-18 07:31:54,316 INFO L80 FinitePrefix]: Finished finitePrefix Result has 215 conditions, 204 events. 14/204 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 365 event pairs, 0 based on Foata normal form. 0/189 useless extension candidates. Maximal degree in co-relation 139. Up to 3 conditions per place. [2020-04-18 07:31:54,325 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 196 places, 204 transitions, 430 flow [2020-04-18 07:31:54,368 INFO L129 PetriNetUnfolder]: 14/204 cut-off events. [2020-04-18 07:31:54,369 INFO L130 PetriNetUnfolder]: For 4/4 co-relation queries the response was YES. [2020-04-18 07:31:54,372 INFO L80 FinitePrefix]: Finished finitePrefix Result has 215 conditions, 204 events. 14/204 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 365 event pairs, 0 based on Foata normal form. 0/189 useless extension candidates. Maximal degree in co-relation 139. Up to 3 conditions per place. [2020-04-18 07:31:54,380 INFO L158 etLargeBlockEncoding]: Number of co-enabled transitions 9440 [2020-04-18 07:31:54,381 INFO L170 etLargeBlockEncoding]: Semantic Check. [2020-04-18 07:31:58,174 WARN L192 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 51 [2020-04-18 07:31:59,023 WARN L192 SmtUtils]: Spent 215.00 ms on a formula simplification that was a NOOP. DAG size: 113 [2020-04-18 07:31:59,152 WARN L192 SmtUtils]: Spent 125.00 ms on a formula simplification that was a NOOP. DAG size: 103 [2020-04-18 07:31:59,972 WARN L192 SmtUtils]: Spent 605.00 ms on a formula simplification. DAG size of input: 132 DAG size of output: 122 [2020-04-18 07:32:00,197 WARN L192 SmtUtils]: Spent 223.00 ms on a formula simplification that was a NOOP. DAG size: 119 [2020-04-18 07:32:01,088 WARN L192 SmtUtils]: Spent 868.00 ms on a formula simplification. DAG size of input: 155 DAG size of output: 147 [2020-04-18 07:32:01,431 WARN L192 SmtUtils]: Spent 340.00 ms on a formula simplification that was a NOOP. DAG size: 143 [2020-04-18 07:32:01,453 INFO L206 etLargeBlockEncoding]: Checked pairs total: 17748 [2020-04-18 07:32:01,454 INFO L214 etLargeBlockEncoding]: Total number of compositions: 178 [2020-04-18 07:32:01,457 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 53 places, 55 transitions, 132 flow [2020-04-18 07:32:01,501 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 716 states. [2020-04-18 07:32:01,503 INFO L276 IsEmpty]: Start isEmpty. Operand 716 states. [2020-04-18 07:32:01,509 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 2 [2020-04-18 07:32:01,509 INFO L417 BasicCegarLoop]: Found error trace [2020-04-18 07:32:01,510 INFO L425 BasicCegarLoop]: trace histogram [1] [2020-04-18 07:32:01,511 INFO L427 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-04-18 07:32:01,516 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 07:32:01,517 INFO L82 PathProgramCache]: Analyzing trace with hash 810, now seen corresponding path program 1 times [2020-04-18 07:32:01,524 INFO L163 FreeRefinementEngine]: Executing refinement strategy MCR [2020-04-18 07:32:01,524 INFO L354 FreeRefinementEngine]: Using trace check StrategyModuleMcr [1974933928] [2020-04-18 07:32:01,540 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 07:32:01,548 INFO L259 McrAutomatonBuilder]: Finished intersection with 2 states and 1 transitions. [2020-04-18 07:32:01,550 INFO L276 IsEmpty]: Start isEmpty. Operand 2 states. [2020-04-18 07:32:01,550 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 2 [2020-04-18 07:32:01,550 INFO L105 Mcr]: ---- MCR iteration 0 ---- [2020-04-18 07:32:01,551 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 07:32:01,551 INFO L82 PathProgramCache]: Analyzing trace with hash 810, now seen corresponding path program 2 times [2020-04-18 07:32:01,555 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-18 07:32:01,555 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [665775355] [2020-04-18 07:32:01,555 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-18 07:32:01,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-18 07:32:01,668 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 07:32:01,669 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [665775355] [2020-04-18 07:32:01,670 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-18 07:32:01,670 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [0] imperfect sequences [] total 0 [2020-04-18 07:32:01,671 INFO L201 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-04-18 07:32:01,672 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 07:32:01,672 INFO L259 McrAutomatonBuilder]: Finished intersection with 2 states and 1 transitions. [2020-04-18 07:32:01,672 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-04-18 07:32:01,675 INFO L356 McrAutomatonBuilder]: Construction finished. Needed to calculate wp 0 times. [2020-04-18 07:32:01,679 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-04-18 07:32:01,680 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-04-18 07:32:01,682 INFO L87 Difference]: Start difference. First operand 2 states. Second operand 2 states. [2020-04-18 07:32:01,689 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 07:32:01,689 INFO L93 Difference]: Finished difference Result 2 states and 1 transitions. [2020-04-18 07:32:01,690 INFO L276 IsEmpty]: Start isEmpty. Operand 2 states and 1 transitions. [2020-04-18 07:32:01,690 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-04-18 07:32:01,690 INFO L354 FreeRefinementEngine]: Using interpolant generator StrategyModuleMcr [1974933928] [2020-04-18 07:32:01,691 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-04-18 07:32:01,691 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [0] total 0 [2020-04-18 07:32:01,691 INFO L156 tionRefinementEngine]: Using interpolant automaton builder StrategyModuleMcr [1974933928] [2020-04-18 07:32:01,693 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-04-18 07:32:01,693 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy MCR [2020-04-18 07:32:01,698 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-04-18 07:32:01,699 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-04-18 07:32:01,699 INFO L87 Difference]: Start difference. First operand 716 states. Second operand 2 states. [2020-04-18 07:32:01,736 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 07:32:01,736 INFO L93 Difference]: Finished difference Result 715 states and 1901 transitions. [2020-04-18 07:32:01,736 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-04-18 07:32:01,737 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 1 [2020-04-18 07:32:01,738 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-04-18 07:32:01,759 INFO L225 Difference]: With dead ends: 715 [2020-04-18 07:32:01,759 INFO L226 Difference]: Without dead ends: 524 [2020-04-18 07:32:01,760 INFO L678 BasicCegarLoop]: 0 DeclaredPredicates, 0 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-04-18 07:32:01,784 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 524 states. [2020-04-18 07:32:01,833 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 524 to 524. [2020-04-18 07:32:01,835 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 524 states. [2020-04-18 07:32:01,841 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 524 states to 524 states and 1400 transitions. [2020-04-18 07:32:01,845 INFO L78 Accepts]: Start accepts. Automaton has 524 states and 1400 transitions. Word has length 1 [2020-04-18 07:32:01,845 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-04-18 07:32:01,845 INFO L479 AbstractCegarLoop]: Abstraction has 524 states and 1400 transitions. [2020-04-18 07:32:01,846 INFO L480 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-04-18 07:32:01,846 INFO L276 IsEmpty]: Start isEmpty. Operand 524 states and 1400 transitions. [2020-04-18 07:32:01,853 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2020-04-18 07:32:01,854 INFO L417 BasicCegarLoop]: Found error trace [2020-04-18 07:32:01,854 INFO L425 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-04-18 07:32:01,854 INFO L427 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-04-18 07:32:01,855 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 07:32:01,855 INFO L82 PathProgramCache]: Analyzing trace with hash 1385599744, now seen corresponding path program 1 times [2020-04-18 07:32:01,855 INFO L163 FreeRefinementEngine]: Executing refinement strategy MCR [2020-04-18 07:32:01,856 INFO L354 FreeRefinementEngine]: Using trace check StrategyModuleMcr [1842866977] [2020-04-18 07:32:01,859 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 07:32:01,861 INFO L259 McrAutomatonBuilder]: Finished intersection with 16 states and 15 transitions. [2020-04-18 07:32:01,863 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states. [2020-04-18 07:32:01,864 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2020-04-18 07:32:01,864 INFO L105 Mcr]: ---- MCR iteration 0 ---- [2020-04-18 07:32:01,864 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 07:32:01,864 INFO L82 PathProgramCache]: Analyzing trace with hash 1385599744, now seen corresponding path program 2 times [2020-04-18 07:32:01,865 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-18 07:32:01,868 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1612077968] [2020-04-18 07:32:01,868 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-18 07:32:01,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-18 07:32:02,033 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 07:32:02,034 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1612077968] [2020-04-18 07:32:02,034 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-18 07:32:02,035 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-04-18 07:32:02,035 INFO L201 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-04-18 07:32:02,038 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 07:32:02,042 INFO L259 McrAutomatonBuilder]: Finished intersection with 16 states and 15 transitions. [2020-04-18 07:32:02,043 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-04-18 07:32:02,047 INFO L356 McrAutomatonBuilder]: Construction finished. Needed to calculate wp 0 times. [2020-04-18 07:32:02,047 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-04-18 07:32:02,047 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-04-18 07:32:02,048 INFO L87 Difference]: Start difference. First operand 16 states. Second operand 3 states. [2020-04-18 07:32:02,049 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 07:32:02,049 INFO L93 Difference]: Finished difference Result 16 states and 15 transitions. [2020-04-18 07:32:02,049 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 15 transitions. [2020-04-18 07:32:02,050 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-04-18 07:32:02,050 INFO L354 FreeRefinementEngine]: Using interpolant generator StrategyModuleMcr [1842866977] [2020-04-18 07:32:02,050 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-04-18 07:32:02,051 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [2] total 2 [2020-04-18 07:32:02,051 INFO L156 tionRefinementEngine]: Using interpolant automaton builder StrategyModuleMcr [1842866977] [2020-04-18 07:32:02,051 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-04-18 07:32:02,052 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy MCR [2020-04-18 07:32:02,052 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-04-18 07:32:02,052 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-04-18 07:32:02,052 INFO L87 Difference]: Start difference. First operand 524 states and 1400 transitions. Second operand 3 states. [2020-04-18 07:32:02,063 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 07:32:02,063 INFO L93 Difference]: Finished difference Result 236 states and 509 transitions. [2020-04-18 07:32:02,064 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-04-18 07:32:02,064 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 15 [2020-04-18 07:32:02,064 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-04-18 07:32:02,066 INFO L225 Difference]: With dead ends: 236 [2020-04-18 07:32:02,067 INFO L226 Difference]: Without dead ends: 212 [2020-04-18 07:32:02,068 INFO L678 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 13 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 07:32:02,070 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 212 states. [2020-04-18 07:32:02,077 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 212 to 212. [2020-04-18 07:32:02,077 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 212 states. [2020-04-18 07:32:02,078 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 212 states to 212 states and 464 transitions. [2020-04-18 07:32:02,078 INFO L78 Accepts]: Start accepts. Automaton has 212 states and 464 transitions. Word has length 15 [2020-04-18 07:32:02,079 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-04-18 07:32:02,079 INFO L479 AbstractCegarLoop]: Abstraction has 212 states and 464 transitions. [2020-04-18 07:32:02,079 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-04-18 07:32:02,079 INFO L276 IsEmpty]: Start isEmpty. Operand 212 states and 464 transitions. [2020-04-18 07:32:02,081 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2020-04-18 07:32:02,081 INFO L417 BasicCegarLoop]: Found error trace [2020-04-18 07:32:02,082 INFO L425 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-04-18 07:32:02,082 INFO L427 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-04-18 07:32:02,082 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 07:32:02,082 INFO L82 PathProgramCache]: Analyzing trace with hash 1061498615, now seen corresponding path program 1 times [2020-04-18 07:32:02,083 INFO L163 FreeRefinementEngine]: Executing refinement strategy MCR [2020-04-18 07:32:02,083 INFO L354 FreeRefinementEngine]: Using trace check StrategyModuleMcr [1208410514] [2020-04-18 07:32:02,084 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 07:32:02,086 INFO L259 McrAutomatonBuilder]: Finished intersection with 72 states and 123 transitions. [2020-04-18 07:32:02,087 INFO L276 IsEmpty]: Start isEmpty. Operand 72 states. [2020-04-18 07:32:02,088 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2020-04-18 07:32:02,088 INFO L105 Mcr]: ---- MCR iteration 0 ---- [2020-04-18 07:32:02,088 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 07:32:02,089 INFO L82 PathProgramCache]: Analyzing trace with hash 1061498615, now seen corresponding path program 2 times [2020-04-18 07:32:02,089 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-18 07:32:02,089 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2004063009] [2020-04-18 07:32:02,089 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-18 07:32:02,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-18 07:32:02,187 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 07:32:02,188 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2004063009] [2020-04-18 07:32:02,188 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-18 07:32:02,188 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-04-18 07:32:02,189 INFO L201 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-04-18 07:32:02,192 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 07:32:02,200 INFO L259 McrAutomatonBuilder]: Finished intersection with 31 states and 41 transitions. [2020-04-18 07:32:02,200 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-04-18 07:32:02,210 INFO L356 McrAutomatonBuilder]: Construction finished. Needed to calculate wp 0 times. [2020-04-18 07:32:02,211 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-04-18 07:32:02,213 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-04-18 07:32:02,213 INFO L87 Difference]: Start difference. First operand 72 states. Second operand 3 states. [2020-04-18 07:32:02,225 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 07:32:02,225 INFO L93 Difference]: Finished difference Result 72 states and 123 transitions. [2020-04-18 07:32:02,225 INFO L276 IsEmpty]: Start isEmpty. Operand 72 states and 123 transitions. [2020-04-18 07:32:02,226 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-04-18 07:32:02,226 INFO L354 FreeRefinementEngine]: Using interpolant generator StrategyModuleMcr [1208410514] [2020-04-18 07:32:02,227 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-04-18 07:32:02,227 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3] total 3 [2020-04-18 07:32:02,227 INFO L156 tionRefinementEngine]: Using interpolant automaton builder StrategyModuleMcr [1208410514] [2020-04-18 07:32:02,227 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-04-18 07:32:02,228 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy MCR [2020-04-18 07:32:02,228 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-04-18 07:32:02,228 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-04-18 07:32:02,228 INFO L87 Difference]: Start difference. First operand 212 states and 464 transitions. Second operand 3 states. [2020-04-18 07:32:02,245 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 07:32:02,246 INFO L93 Difference]: Finished difference Result 272 states and 590 transitions. [2020-04-18 07:32:02,246 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-04-18 07:32:02,246 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 19 [2020-04-18 07:32:02,246 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-04-18 07:32:02,249 INFO L225 Difference]: With dead ends: 272 [2020-04-18 07:32:02,249 INFO L226 Difference]: Without dead ends: 272 [2020-04-18 07:32:02,249 INFO L678 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 17 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 07:32:02,251 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 272 states. [2020-04-18 07:32:02,260 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 272 to 218. [2020-04-18 07:32:02,260 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 218 states. [2020-04-18 07:32:02,261 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 218 states to 218 states and 476 transitions. [2020-04-18 07:32:02,261 INFO L78 Accepts]: Start accepts. Automaton has 218 states and 476 transitions. Word has length 19 [2020-04-18 07:32:02,262 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-04-18 07:32:02,262 INFO L479 AbstractCegarLoop]: Abstraction has 218 states and 476 transitions. [2020-04-18 07:32:02,267 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-04-18 07:32:02,267 INFO L276 IsEmpty]: Start isEmpty. Operand 218 states and 476 transitions. [2020-04-18 07:32:02,269 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2020-04-18 07:32:02,269 INFO L417 BasicCegarLoop]: Found error trace [2020-04-18 07:32:02,269 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] [2020-04-18 07:32:02,270 INFO L427 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-04-18 07:32:02,270 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 07:32:02,270 INFO L82 PathProgramCache]: Analyzing trace with hash -1197878433, now seen corresponding path program 1 times [2020-04-18 07:32:02,270 INFO L163 FreeRefinementEngine]: Executing refinement strategy MCR [2020-04-18 07:32:02,270 INFO L354 FreeRefinementEngine]: Using trace check StrategyModuleMcr [1811687662] [2020-04-18 07:32:02,272 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 07:32:02,276 INFO L259 McrAutomatonBuilder]: Finished intersection with 170 states and 312 transitions. [2020-04-18 07:32:02,278 INFO L276 IsEmpty]: Start isEmpty. Operand 170 states. [2020-04-18 07:32:02,279 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2020-04-18 07:32:02,280 INFO L105 Mcr]: ---- MCR iteration 0 ---- [2020-04-18 07:32:02,280 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 07:32:02,280 INFO L82 PathProgramCache]: Analyzing trace with hash -1590946145, now seen corresponding path program 2 times [2020-04-18 07:32:02,280 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-18 07:32:02,281 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [646182660] [2020-04-18 07:32:02,281 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-18 07:32:02,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-18 07:32:02,409 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-04-18 07:32:02,410 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [646182660] [2020-04-18 07:32:02,410 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-18 07:32:02,410 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-04-18 07:32:02,410 INFO L201 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-04-18 07:32:02,417 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 07:32:02,427 INFO L259 McrAutomatonBuilder]: Finished intersection with 27 states and 26 transitions. [2020-04-18 07:32:02,427 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-04-18 07:32:02,432 INFO L356 McrAutomatonBuilder]: Construction finished. Needed to calculate wp 0 times. [2020-04-18 07:32:02,432 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-04-18 07:32:02,432 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-04-18 07:32:02,433 INFO L87 Difference]: Start difference. First operand 170 states. Second operand 3 states. [2020-04-18 07:32:02,442 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 07:32:02,443 INFO L93 Difference]: Finished difference Result 170 states and 312 transitions. [2020-04-18 07:32:02,443 INFO L276 IsEmpty]: Start isEmpty. Operand 170 states and 312 transitions. [2020-04-18 07:32:02,444 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-04-18 07:32:02,444 INFO L354 FreeRefinementEngine]: Using interpolant generator StrategyModuleMcr [1811687662] [2020-04-18 07:32:02,444 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-04-18 07:32:02,444 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3] total 3 [2020-04-18 07:32:02,445 INFO L156 tionRefinementEngine]: Using interpolant automaton builder StrategyModuleMcr [1811687662] [2020-04-18 07:32:02,445 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-04-18 07:32:02,445 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy MCR [2020-04-18 07:32:02,445 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-04-18 07:32:02,446 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-04-18 07:32:02,446 INFO L87 Difference]: Start difference. First operand 218 states and 476 transitions. Second operand 3 states. [2020-04-18 07:32:02,462 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 07:32:02,462 INFO L93 Difference]: Finished difference Result 166 states and 334 transitions. [2020-04-18 07:32:02,462 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-04-18 07:32:02,463 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 26 [2020-04-18 07:32:02,463 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-04-18 07:32:02,464 INFO L225 Difference]: With dead ends: 166 [2020-04-18 07:32:02,464 INFO L226 Difference]: Without dead ends: 164 [2020-04-18 07:32:02,465 INFO L678 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 24 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 07:32:02,466 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 164 states. [2020-04-18 07:32:02,469 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 164 to 164. [2020-04-18 07:32:02,469 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 164 states. [2020-04-18 07:32:02,470 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 164 states to 164 states and 331 transitions. [2020-04-18 07:32:02,470 INFO L78 Accepts]: Start accepts. Automaton has 164 states and 331 transitions. Word has length 26 [2020-04-18 07:32:02,471 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-04-18 07:32:02,471 INFO L479 AbstractCegarLoop]: Abstraction has 164 states and 331 transitions. [2020-04-18 07:32:02,471 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-04-18 07:32:02,471 INFO L276 IsEmpty]: Start isEmpty. Operand 164 states and 331 transitions. [2020-04-18 07:32:02,472 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2020-04-18 07:32:02,472 INFO L417 BasicCegarLoop]: Found error trace [2020-04-18 07:32:02,472 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] [2020-04-18 07:32:02,473 INFO L427 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-04-18 07:32:02,473 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 07:32:02,473 INFO L82 PathProgramCache]: Analyzing trace with hash -969107883, now seen corresponding path program 1 times [2020-04-18 07:32:02,473 INFO L163 FreeRefinementEngine]: Executing refinement strategy MCR [2020-04-18 07:32:02,474 INFO L354 FreeRefinementEngine]: Using trace check StrategyModuleMcr [807479951] [2020-04-18 07:32:02,475 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 07:32:02,481 INFO L259 McrAutomatonBuilder]: Finished intersection with 184 states and 339 transitions. [2020-04-18 07:32:02,482 INFO L276 IsEmpty]: Start isEmpty. Operand 184 states. [2020-04-18 07:32:02,483 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2020-04-18 07:32:02,484 INFO L105 Mcr]: ---- MCR iteration 0 ---- [2020-04-18 07:32:02,484 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 07:32:02,484 INFO L82 PathProgramCache]: Analyzing trace with hash -2074689771, now seen corresponding path program 2 times [2020-04-18 07:32:02,484 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-18 07:32:02,485 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1032274822] [2020-04-18 07:32:02,485 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-18 07:32:02,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-18 07:32:02,539 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-04-18 07:32:02,539 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1032274822] [2020-04-18 07:32:02,540 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-18 07:32:02,540 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-04-18 07:32:02,540 INFO L201 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-04-18 07:32:02,547 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 07:32:02,557 INFO L259 McrAutomatonBuilder]: Finished intersection with 28 states and 27 transitions. [2020-04-18 07:32:02,557 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-04-18 07:32:02,562 INFO L356 McrAutomatonBuilder]: Construction finished. Needed to calculate wp 0 times. [2020-04-18 07:32:02,562 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-04-18 07:32:02,562 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-04-18 07:32:02,562 INFO L87 Difference]: Start difference. First operand 184 states. Second operand 3 states. [2020-04-18 07:32:02,577 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 07:32:02,577 INFO L93 Difference]: Finished difference Result 195 states and 349 transitions. [2020-04-18 07:32:02,577 INFO L276 IsEmpty]: Start isEmpty. Operand 195 states and 349 transitions. [2020-04-18 07:32:02,578 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2020-04-18 07:32:02,578 INFO L105 Mcr]: ---- MCR iteration 1 ---- [2020-04-18 07:32:02,578 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 07:32:02,578 INFO L82 PathProgramCache]: Analyzing trace with hash -969107883, now seen corresponding path program 3 times [2020-04-18 07:32:02,579 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-18 07:32:02,579 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [873727363] [2020-04-18 07:32:02,579 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-18 07:32:02,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-18 07:32:02,627 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-04-18 07:32:02,628 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [873727363] [2020-04-18 07:32:02,628 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1431280775] [2020-04-18 07:32:02,628 INFO L92 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 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 07:32:02,828 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2020-04-18 07:32:02,829 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2020-04-18 07:32:02,831 INFO L264 TraceCheckSpWp]: Trace formula consists of 197 conjuncts, 3 conjunts are in the unsatisfiable core [2020-04-18 07:32:02,838 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2020-04-18 07:32:02,864 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-04-18 07:32:02,865 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-04-18 07:32:02,865 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 5 [2020-04-18 07:32:02,866 INFO L201 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-04-18 07:32:02,872 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 07:32:02,882 INFO L259 McrAutomatonBuilder]: Finished intersection with 35 states and 41 transitions. [2020-04-18 07:32:02,883 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-04-18 07:32:02,903 INFO L356 McrAutomatonBuilder]: Construction finished. Needed to calculate wp 2 times. [2020-04-18 07:32:02,904 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-04-18 07:32:02,904 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-04-18 07:32:02,904 INFO L87 Difference]: Start difference. First operand 195 states and 349 transitions. Second operand 5 states. [2020-04-18 07:32:02,915 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 07:32:02,916 INFO L93 Difference]: Finished difference Result 195 states and 349 transitions. [2020-04-18 07:32:02,916 INFO L276 IsEmpty]: Start isEmpty. Operand 195 states and 349 transitions. [2020-04-18 07:32:02,916 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-04-18 07:32:02,917 INFO L354 FreeRefinementEngine]: Using interpolant generator StrategyModuleMcr [807479951] [2020-04-18 07:32:02,917 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-04-18 07:32:02,917 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4] total 4 [2020-04-18 07:32:02,917 INFO L156 tionRefinementEngine]: Using interpolant automaton builder StrategyModuleMcr [807479951] [2020-04-18 07:32:02,917 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-04-18 07:32:02,917 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy MCR [2020-04-18 07:32:02,918 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-04-18 07:32:02,918 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-04-18 07:32:02,918 INFO L87 Difference]: Start difference. First operand 164 states and 331 transitions. Second operand 6 states. [2020-04-18 07:32:02,975 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 07:32:02,975 INFO L93 Difference]: Finished difference Result 240 states and 472 transitions. [2020-04-18 07:32:02,976 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-04-18 07:32:02,976 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 27 [2020-04-18 07:32:02,977 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-04-18 07:32:02,978 INFO L225 Difference]: With dead ends: 240 [2020-04-18 07:32:02,979 INFO L226 Difference]: Without dead ends: 240 [2020-04-18 07:32:02,979 INFO L678 BasicCegarLoop]: 0 DeclaredPredicates, 82 GetRequests, 76 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2020-04-18 07:32:02,980 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 240 states. [2020-04-18 07:32:02,984 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 240 to 204. [2020-04-18 07:32:02,984 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 204 states. [2020-04-18 07:32:02,985 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 204 states to 204 states and 405 transitions. [2020-04-18 07:32:02,985 INFO L78 Accepts]: Start accepts. Automaton has 204 states and 405 transitions. Word has length 27 [2020-04-18 07:32:02,986 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-04-18 07:32:02,986 INFO L479 AbstractCegarLoop]: Abstraction has 204 states and 405 transitions. [2020-04-18 07:32:02,986 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-04-18 07:32:02,986 INFO L276 IsEmpty]: Start isEmpty. Operand 204 states and 405 transitions. [2020-04-18 07:32:02,987 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2020-04-18 07:32:02,987 INFO L417 BasicCegarLoop]: Found error trace [2020-04-18 07:32:02,987 INFO L425 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-04-18 07:32:03,191 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-04-18 07:32:03,192 INFO L427 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-04-18 07:32:03,192 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 07:32:03,192 INFO L82 PathProgramCache]: Analyzing trace with hash 1561383711, now seen corresponding path program 4 times [2020-04-18 07:32:03,192 INFO L163 FreeRefinementEngine]: Executing refinement strategy MCR [2020-04-18 07:32:03,193 INFO L354 FreeRefinementEngine]: Using trace check StrategyModuleMcr [2113232301] [2020-04-18 07:32:03,194 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 07:32:03,197 INFO L259 McrAutomatonBuilder]: Finished intersection with 282 states and 528 transitions. [2020-04-18 07:32:03,199 INFO L276 IsEmpty]: Start isEmpty. Operand 282 states. [2020-04-18 07:32:03,200 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2020-04-18 07:32:03,200 INFO L105 Mcr]: ---- MCR iteration 0 ---- [2020-04-18 07:32:03,200 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 07:32:03,200 INFO L82 PathProgramCache]: Analyzing trace with hash 568616071, now seen corresponding path program 5 times [2020-04-18 07:32:03,201 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-18 07:32:03,201 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [431144819] [2020-04-18 07:32:03,201 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-18 07:32:03,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-18 07:32:03,249 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2020-04-18 07:32:03,250 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [431144819] [2020-04-18 07:32:03,250 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-18 07:32:03,250 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-04-18 07:32:03,251 INFO L201 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-04-18 07:32:03,259 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 07:32:03,275 INFO L259 McrAutomatonBuilder]: Finished intersection with 35 states and 34 transitions. [2020-04-18 07:32:03,276 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-04-18 07:32:03,283 INFO L356 McrAutomatonBuilder]: Construction finished. Needed to calculate wp 0 times. [2020-04-18 07:32:03,284 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-04-18 07:32:03,285 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-04-18 07:32:03,285 INFO L87 Difference]: Start difference. First operand 282 states. Second operand 3 states. [2020-04-18 07:32:03,297 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 07:32:03,298 INFO L93 Difference]: Finished difference Result 293 states and 538 transitions. [2020-04-18 07:32:03,298 INFO L276 IsEmpty]: Start isEmpty. Operand 293 states and 538 transitions. [2020-04-18 07:32:03,299 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2020-04-18 07:32:03,299 INFO L105 Mcr]: ---- MCR iteration 1 ---- [2020-04-18 07:32:03,299 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 07:32:03,300 INFO L82 PathProgramCache]: Analyzing trace with hash 1561383711, now seen corresponding path program 6 times [2020-04-18 07:32:03,300 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-18 07:32:03,301 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2094263598] [2020-04-18 07:32:03,301 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-18 07:32:03,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-18 07:32:03,401 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-04-18 07:32:03,402 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2094263598] [2020-04-18 07:32:03,402 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1638829067] [2020-04-18 07:32:03,402 INFO L92 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE 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 07:32:03,633 INFO L249 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 3 check-sat command(s) [2020-04-18 07:32:03,633 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2020-04-18 07:32:03,635 INFO L264 TraceCheckSpWp]: Trace formula consists of 230 conjuncts, 4 conjunts are in the unsatisfiable core [2020-04-18 07:32:03,638 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2020-04-18 07:32:03,648 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-04-18 07:32:03,653 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-04-18 07:32:03,653 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 6 [2020-04-18 07:32:03,653 INFO L201 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-04-18 07:32:03,661 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 07:32:03,679 INFO L259 McrAutomatonBuilder]: Finished intersection with 49 states and 62 transitions. [2020-04-18 07:32:03,679 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-04-18 07:32:03,716 INFO L356 McrAutomatonBuilder]: Construction finished. Needed to calculate wp 3 times. [2020-04-18 07:32:03,716 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-04-18 07:32:03,717 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-04-18 07:32:03,717 INFO L87 Difference]: Start difference. First operand 293 states and 538 transitions. Second operand 6 states. [2020-04-18 07:32:03,735 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 07:32:03,735 INFO L93 Difference]: Finished difference Result 293 states and 538 transitions. [2020-04-18 07:32:03,736 INFO L276 IsEmpty]: Start isEmpty. Operand 293 states and 538 transitions. [2020-04-18 07:32:03,736 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-04-18 07:32:03,737 INFO L354 FreeRefinementEngine]: Using interpolant generator StrategyModuleMcr [2113232301] [2020-04-18 07:32:03,737 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-04-18 07:32:03,737 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-04-18 07:32:03,738 INFO L156 tionRefinementEngine]: Using interpolant automaton builder StrategyModuleMcr [2113232301] [2020-04-18 07:32:03,738 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-04-18 07:32:03,738 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy MCR [2020-04-18 07:32:03,738 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-04-18 07:32:03,738 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-04-18 07:32:03,739 INFO L87 Difference]: Start difference. First operand 204 states and 405 transitions. Second operand 7 states. [2020-04-18 07:32:03,808 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 07:32:03,808 INFO L93 Difference]: Finished difference Result 280 states and 546 transitions. [2020-04-18 07:32:03,809 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-04-18 07:32:03,809 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 34 [2020-04-18 07:32:03,809 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-04-18 07:32:03,811 INFO L225 Difference]: With dead ends: 280 [2020-04-18 07:32:03,811 INFO L226 Difference]: Without dead ends: 280 [2020-04-18 07:32:03,811 INFO L678 BasicCegarLoop]: 0 DeclaredPredicates, 105 GetRequests, 97 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=36, Invalid=54, Unknown=0, NotChecked=0, Total=90 [2020-04-18 07:32:03,812 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 280 states. [2020-04-18 07:32:03,818 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 280 to 244. [2020-04-18 07:32:03,818 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 244 states. [2020-04-18 07:32:03,819 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 244 states to 244 states and 479 transitions. [2020-04-18 07:32:03,819 INFO L78 Accepts]: Start accepts. Automaton has 244 states and 479 transitions. Word has length 34 [2020-04-18 07:32:03,820 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-04-18 07:32:03,820 INFO L479 AbstractCegarLoop]: Abstraction has 244 states and 479 transitions. [2020-04-18 07:32:03,820 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-04-18 07:32:03,820 INFO L276 IsEmpty]: Start isEmpty. Operand 244 states and 479 transitions. [2020-04-18 07:32:03,821 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2020-04-18 07:32:03,821 INFO L417 BasicCegarLoop]: Found error trace [2020-04-18 07:32:03,821 INFO L425 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-04-18 07:32:04,026 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-04-18 07:32:04,028 INFO L427 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-04-18 07:32:04,028 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 07:32:04,028 INFO L82 PathProgramCache]: Analyzing trace with hash -303137003, now seen corresponding path program 7 times [2020-04-18 07:32:04,028 INFO L163 FreeRefinementEngine]: Executing refinement strategy MCR [2020-04-18 07:32:04,029 INFO L354 FreeRefinementEngine]: Using trace check StrategyModuleMcr [189418030] [2020-04-18 07:32:04,030 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 07:32:04,057 INFO L259 McrAutomatonBuilder]: Finished intersection with 380 states and 717 transitions. [2020-04-18 07:32:04,059 INFO L276 IsEmpty]: Start isEmpty. Operand 380 states. [2020-04-18 07:32:04,064 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2020-04-18 07:32:04,064 INFO L105 Mcr]: ---- MCR iteration 0 ---- [2020-04-18 07:32:04,064 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 07:32:04,064 INFO L82 PathProgramCache]: Analyzing trace with hash -1500459, now seen corresponding path program 8 times [2020-04-18 07:32:04,065 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-18 07:32:04,065 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1429161541] [2020-04-18 07:32:04,065 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-18 07:32:04,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-18 07:32:04,108 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2020-04-18 07:32:04,109 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1429161541] [2020-04-18 07:32:04,109 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-18 07:32:04,109 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-04-18 07:32:04,109 INFO L201 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-04-18 07:32:04,122 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 07:32:04,140 INFO L259 McrAutomatonBuilder]: Finished intersection with 42 states and 41 transitions. [2020-04-18 07:32:04,141 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-04-18 07:32:04,146 INFO L356 McrAutomatonBuilder]: Construction finished. Needed to calculate wp 0 times. [2020-04-18 07:32:04,146 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-04-18 07:32:04,146 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-04-18 07:32:04,146 INFO L87 Difference]: Start difference. First operand 380 states. Second operand 3 states. [2020-04-18 07:32:04,165 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 07:32:04,165 INFO L93 Difference]: Finished difference Result 391 states and 727 transitions. [2020-04-18 07:32:04,165 INFO L276 IsEmpty]: Start isEmpty. Operand 391 states and 727 transitions. [2020-04-18 07:32:04,166 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2020-04-18 07:32:04,167 INFO L105 Mcr]: ---- MCR iteration 1 ---- [2020-04-18 07:32:04,167 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 07:32:04,167 INFO L82 PathProgramCache]: Analyzing trace with hash -303137003, now seen corresponding path program 9 times [2020-04-18 07:32:04,167 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-18 07:32:04,167 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [207563172] [2020-04-18 07:32:04,168 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-18 07:32:04,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-18 07:32:04,249 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 24 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-04-18 07:32:04,249 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [207563172] [2020-04-18 07:32:04,249 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [339835056] [2020-04-18 07:32:04,250 INFO L92 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-04-18 07:32:04,677 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 4 check-sat command(s) [2020-04-18 07:32:04,677 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2020-04-18 07:32:04,679 INFO L264 TraceCheckSpWp]: Trace formula consists of 263 conjuncts, 5 conjunts are in the unsatisfiable core [2020-04-18 07:32:04,682 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2020-04-18 07:32:04,704 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 24 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-04-18 07:32:04,705 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-04-18 07:32:04,705 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 7 [2020-04-18 07:32:04,705 INFO L201 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-04-18 07:32:04,716 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 07:32:04,748 INFO L259 McrAutomatonBuilder]: Finished intersection with 63 states and 83 transitions. [2020-04-18 07:32:04,748 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-04-18 07:32:04,784 INFO L356 McrAutomatonBuilder]: Construction finished. Needed to calculate wp 4 times. [2020-04-18 07:32:04,784 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-04-18 07:32:04,784 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2020-04-18 07:32:04,784 INFO L87 Difference]: Start difference. First operand 391 states and 727 transitions. Second operand 7 states. [2020-04-18 07:32:04,832 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 07:32:04,832 INFO L93 Difference]: Finished difference Result 391 states and 727 transitions. [2020-04-18 07:32:04,832 INFO L276 IsEmpty]: Start isEmpty. Operand 391 states and 727 transitions. [2020-04-18 07:32:04,833 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-04-18 07:32:04,833 INFO L354 FreeRefinementEngine]: Using interpolant generator StrategyModuleMcr [189418030] [2020-04-18 07:32:04,834 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-04-18 07:32:04,834 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2020-04-18 07:32:04,834 INFO L156 tionRefinementEngine]: Using interpolant automaton builder StrategyModuleMcr [189418030] [2020-04-18 07:32:04,834 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-04-18 07:32:04,834 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy MCR [2020-04-18 07:32:04,835 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-04-18 07:32:04,835 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2020-04-18 07:32:04,835 INFO L87 Difference]: Start difference. First operand 244 states and 479 transitions. Second operand 8 states. [2020-04-18 07:32:04,933 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 07:32:04,933 INFO L93 Difference]: Finished difference Result 320 states and 620 transitions. [2020-04-18 07:32:04,934 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-04-18 07:32:04,934 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 41 [2020-04-18 07:32:04,934 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-04-18 07:32:04,936 INFO L225 Difference]: With dead ends: 320 [2020-04-18 07:32:04,936 INFO L226 Difference]: Without dead ends: 320 [2020-04-18 07:32:04,937 INFO L678 BasicCegarLoop]: 0 DeclaredPredicates, 128 GetRequests, 118 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=52, Invalid=80, Unknown=0, NotChecked=0, Total=132 [2020-04-18 07:32:04,938 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 320 states. [2020-04-18 07:32:04,943 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 320 to 284. [2020-04-18 07:32:04,943 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 284 states. [2020-04-18 07:32:04,944 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 284 states to 284 states and 553 transitions. [2020-04-18 07:32:04,945 INFO L78 Accepts]: Start accepts. Automaton has 284 states and 553 transitions. Word has length 41 [2020-04-18 07:32:04,945 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-04-18 07:32:04,945 INFO L479 AbstractCegarLoop]: Abstraction has 284 states and 553 transitions. [2020-04-18 07:32:04,945 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-04-18 07:32:04,945 INFO L276 IsEmpty]: Start isEmpty. Operand 284 states and 553 transitions. [2020-04-18 07:32:04,946 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2020-04-18 07:32:04,946 INFO L417 BasicCegarLoop]: Found error trace [2020-04-18 07:32:04,947 INFO L425 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-04-18 07:32:05,155 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-04-18 07:32:05,156 INFO L427 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-04-18 07:32:05,156 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 07:32:05,156 INFO L82 PathProgramCache]: Analyzing trace with hash 1439404639, now seen corresponding path program 10 times [2020-04-18 07:32:05,156 INFO L163 FreeRefinementEngine]: Executing refinement strategy MCR [2020-04-18 07:32:05,156 INFO L354 FreeRefinementEngine]: Using trace check StrategyModuleMcr [1173910236] [2020-04-18 07:32:05,157 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 07:32:05,186 INFO L259 McrAutomatonBuilder]: Finished intersection with 478 states and 906 transitions. [2020-04-18 07:32:05,189 INFO L276 IsEmpty]: Start isEmpty. Operand 478 states. [2020-04-18 07:32:05,191 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2020-04-18 07:32:05,191 INFO L105 Mcr]: ---- MCR iteration 0 ---- [2020-04-18 07:32:05,191 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 07:32:05,191 INFO L82 PathProgramCache]: Analyzing trace with hash -773369657, now seen corresponding path program 11 times [2020-04-18 07:32:05,192 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-18 07:32:05,192 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1131109037] [2020-04-18 07:32:05,192 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-18 07:32:05,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-18 07:32:05,228 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2020-04-18 07:32:05,229 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1131109037] [2020-04-18 07:32:05,229 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-18 07:32:05,229 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-04-18 07:32:05,229 INFO L201 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-04-18 07:32:05,245 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 07:32:05,276 INFO L259 McrAutomatonBuilder]: Finished intersection with 49 states and 48 transitions. [2020-04-18 07:32:05,276 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-04-18 07:32:05,282 INFO L356 McrAutomatonBuilder]: Construction finished. Needed to calculate wp 0 times. [2020-04-18 07:32:05,283 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-04-18 07:32:05,283 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-04-18 07:32:05,283 INFO L87 Difference]: Start difference. First operand 478 states. Second operand 3 states. [2020-04-18 07:32:05,293 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 07:32:05,294 INFO L93 Difference]: Finished difference Result 489 states and 916 transitions. [2020-04-18 07:32:05,294 INFO L276 IsEmpty]: Start isEmpty. Operand 489 states and 916 transitions. [2020-04-18 07:32:05,295 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2020-04-18 07:32:05,295 INFO L105 Mcr]: ---- MCR iteration 1 ---- [2020-04-18 07:32:05,296 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 07:32:05,296 INFO L82 PathProgramCache]: Analyzing trace with hash 1439404639, now seen corresponding path program 12 times [2020-04-18 07:32:05,296 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-18 07:32:05,296 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [638071123] [2020-04-18 07:32:05,296 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-18 07:32:05,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-18 07:32:05,369 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 0 proven. 46 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-04-18 07:32:05,370 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [638071123] [2020-04-18 07:32:05,370 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1371810811] [2020-04-18 07:32:05,370 INFO L92 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-04-18 07:32:05,686 INFO L249 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 4 check-sat command(s) [2020-04-18 07:32:05,686 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2020-04-18 07:32:05,689 INFO L264 TraceCheckSpWp]: Trace formula consists of 263 conjuncts, 34 conjunts are in the unsatisfiable core [2020-04-18 07:32:05,692 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2020-04-18 07:32:05,786 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2020-04-18 07:32:05,787 INFO L539 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-04-18 07:32:05,797 INFO L619 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-04-18 07:32:05,798 INFO L539 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-04-18 07:32:05,798 INFO L239 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:23, output treesize:19 [2020-04-18 07:32:05,824 INFO L189 IndexEqualityManager]: detected not equals via solver [2020-04-18 07:32:05,825 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 20 [2020-04-18 07:32:05,826 INFO L539 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-04-18 07:32:05,833 INFO L619 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-04-18 07:32:05,834 INFO L539 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-04-18 07:32:05,834 INFO L239 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:24, output treesize:13 [2020-04-18 07:32:05,873 INFO L172 IndexEqualityManager]: detected equality via solver [2020-04-18 07:32:05,900 INFO L343 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-04-18 07:32:05,900 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 32 treesize of output 91 [2020-04-18 07:32:05,901 INFO L539 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-04-18 07:32:05,926 INFO L619 ElimStorePlain]: treesize reduction 61, result has 30.7 percent of original size [2020-04-18 07:32:05,926 INFO L539 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-04-18 07:32:05,927 INFO L239 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:35, output treesize:13 [2020-04-18 07:32:05,951 INFO L189 IndexEqualityManager]: detected not equals via solver [2020-04-18 07:32:05,952 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 24 [2020-04-18 07:32:05,953 INFO L539 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-04-18 07:32:05,961 INFO L619 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-04-18 07:32:05,962 INFO L539 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-04-18 07:32:05,962 INFO L239 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:28, output treesize:13 [2020-04-18 07:32:05,970 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 28 proven. 5 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2020-04-18 07:32:05,970 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-04-18 07:32:05,970 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 8] total 14 [2020-04-18 07:32:05,970 INFO L201 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-04-18 07:32:05,986 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 07:32:06,103 INFO L259 McrAutomatonBuilder]: Finished intersection with 77 states and 104 transitions. [2020-04-18 07:32:06,103 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-04-18 07:32:06,250 INFO L356 McrAutomatonBuilder]: Construction finished. Needed to calculate wp 9 times. [2020-04-18 07:32:06,250 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2020-04-18 07:32:06,250 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=59, Invalid=151, Unknown=0, NotChecked=0, Total=210 [2020-04-18 07:32:06,250 INFO L87 Difference]: Start difference. First operand 489 states and 916 transitions. Second operand 14 states. [2020-04-18 07:32:07,155 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 07:32:07,156 INFO L93 Difference]: Finished difference Result 581 states and 1077 transitions. [2020-04-18 07:32:07,156 INFO L276 IsEmpty]: Start isEmpty. Operand 581 states and 1077 transitions. [2020-04-18 07:32:07,157 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-04-18 07:32:07,158 INFO L354 FreeRefinementEngine]: Using interpolant generator StrategyModuleMcr [1173910236] [2020-04-18 07:32:07,158 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-04-18 07:32:07,158 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-04-18 07:32:07,158 INFO L156 tionRefinementEngine]: Using interpolant automaton builder StrategyModuleMcr [1173910236] [2020-04-18 07:32:07,159 INFO L459 AbstractCegarLoop]: Interpolant automaton has 15 states [2020-04-18 07:32:07,159 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy MCR [2020-04-18 07:32:07,159 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2020-04-18 07:32:07,159 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=145, Invalid=317, Unknown=0, NotChecked=0, Total=462 [2020-04-18 07:32:07,160 INFO L87 Difference]: Start difference. First operand 284 states and 553 transitions. Second operand 15 states. [2020-04-18 07:32:07,794 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 07:32:07,795 INFO L93 Difference]: Finished difference Result 388 states and 743 transitions. [2020-04-18 07:32:07,795 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-04-18 07:32:07,795 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 48 [2020-04-18 07:32:07,795 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-04-18 07:32:07,801 INFO L225 Difference]: With dead ends: 388 [2020-04-18 07:32:07,801 INFO L226 Difference]: Without dead ends: 388 [2020-04-18 07:32:07,802 INFO L678 BasicCegarLoop]: 0 DeclaredPredicates, 168 GetRequests, 138 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 220 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=306, Invalid=686, Unknown=0, NotChecked=0, Total=992 [2020-04-18 07:32:07,803 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 388 states. [2020-04-18 07:32:07,816 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 388 to 344. [2020-04-18 07:32:07,816 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 344 states. [2020-04-18 07:32:07,817 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 344 states to 344 states and 662 transitions. [2020-04-18 07:32:07,818 INFO L78 Accepts]: Start accepts. Automaton has 344 states and 662 transitions. Word has length 48 [2020-04-18 07:32:07,821 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-04-18 07:32:07,821 INFO L479 AbstractCegarLoop]: Abstraction has 344 states and 662 transitions. [2020-04-18 07:32:07,821 INFO L480 AbstractCegarLoop]: Interpolant automaton has 15 states. [2020-04-18 07:32:07,821 INFO L276 IsEmpty]: Start isEmpty. Operand 344 states and 662 transitions. [2020-04-18 07:32:07,822 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2020-04-18 07:32:07,822 INFO L417 BasicCegarLoop]: Found error trace [2020-04-18 07:32:07,822 INFO L425 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 4, 4, 4, 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 07:32:08,023 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-04-18 07:32:08,023 INFO L427 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-04-18 07:32:08,024 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 07:32:08,024 INFO L82 PathProgramCache]: Analyzing trace with hash 73813407, now seen corresponding path program 1 times [2020-04-18 07:32:08,024 INFO L163 FreeRefinementEngine]: Executing refinement strategy MCR [2020-04-18 07:32:08,025 INFO L354 FreeRefinementEngine]: Using trace check StrategyModuleMcr [810482721] [2020-04-18 07:32:08,028 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 07:32:08,034 INFO L259 McrAutomatonBuilder]: Finished intersection with 590 states and 1122 transitions. [2020-04-18 07:32:08,037 INFO L276 IsEmpty]: Start isEmpty. Operand 590 states. [2020-04-18 07:32:08,039 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2020-04-18 07:32:08,039 INFO L105 Mcr]: ---- MCR iteration 0 ---- [2020-04-18 07:32:08,039 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 07:32:08,040 INFO L82 PathProgramCache]: Analyzing trace with hash -71573625, now seen corresponding path program 2 times [2020-04-18 07:32:08,040 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-18 07:32:08,040 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1832025058] [2020-04-18 07:32:08,040 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-18 07:32:08,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-18 07:32:08,096 INFO L134 CoverageAnalysis]: Checked inductivity of 67 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 54 trivial. 0 not checked. [2020-04-18 07:32:08,097 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1832025058] [2020-04-18 07:32:08,097 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-18 07:32:08,097 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-04-18 07:32:08,097 INFO L201 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-04-18 07:32:08,144 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 07:32:08,192 INFO L259 McrAutomatonBuilder]: Finished intersection with 57 states and 56 transitions. [2020-04-18 07:32:08,192 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-04-18 07:32:08,199 INFO L356 McrAutomatonBuilder]: Construction finished. Needed to calculate wp 0 times. [2020-04-18 07:32:08,199 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-04-18 07:32:08,199 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-04-18 07:32:08,200 INFO L87 Difference]: Start difference. First operand 590 states. Second operand 3 states. [2020-04-18 07:32:08,211 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 07:32:08,212 INFO L93 Difference]: Finished difference Result 601 states and 1132 transitions. [2020-04-18 07:32:08,212 INFO L276 IsEmpty]: Start isEmpty. Operand 601 states and 1132 transitions. [2020-04-18 07:32:08,213 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2020-04-18 07:32:08,213 INFO L105 Mcr]: ---- MCR iteration 1 ---- [2020-04-18 07:32:08,213 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 07:32:08,214 INFO L82 PathProgramCache]: Analyzing trace with hash 73813407, now seen corresponding path program 3 times [2020-04-18 07:32:08,214 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-18 07:32:08,214 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1290611331] [2020-04-18 07:32:08,214 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-18 07:32:08,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-18 07:32:08,325 INFO L134 CoverageAnalysis]: Checked inductivity of 67 backedges. 0 proven. 67 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-04-18 07:32:08,325 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1290611331] [2020-04-18 07:32:08,326 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1660579316] [2020-04-18 07:32:08,326 INFO L92 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-04-18 07:32:08,712 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 4 check-sat command(s) [2020-04-18 07:32:08,712 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2020-04-18 07:32:08,715 INFO L264 TraceCheckSpWp]: Trace formula consists of 263 conjuncts, 32 conjunts are in the unsatisfiable core [2020-04-18 07:32:08,719 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2020-04-18 07:32:08,763 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2020-04-18 07:32:08,763 INFO L539 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-04-18 07:32:08,775 INFO L619 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-04-18 07:32:08,775 INFO L539 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-04-18 07:32:08,776 INFO L239 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:20, output treesize:16 [2020-04-18 07:32:08,821 INFO L343 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-04-18 07:32:08,822 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 25 treesize of output 62 [2020-04-18 07:32:08,822 INFO L539 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-04-18 07:32:08,860 INFO L619 ElimStorePlain]: treesize reduction 24, result has 65.7 percent of original size [2020-04-18 07:32:08,862 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2020-04-18 07:32:08,875 INFO L539 ElimStorePlain]: Start of recursive call 1: 4 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-04-18 07:32:08,875 INFO L239 ElimStorePlain]: Needed 2 recursive calls to eliminate 5 variables, input treesize:36, output treesize:24 [2020-04-18 07:32:08,896 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2020-04-18 07:32:08,937 INFO L172 IndexEqualityManager]: detected equality via solver [2020-04-18 07:32:08,961 INFO L343 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-04-18 07:32:08,962 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 34 treesize of output 99 [2020-04-18 07:32:08,963 INFO L539 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-04-18 07:32:08,991 INFO L619 ElimStorePlain]: treesize reduction 69, result has 30.3 percent of original size [2020-04-18 07:32:08,992 INFO L539 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-04-18 07:32:08,992 INFO L239 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:40, output treesize:16 [2020-04-18 07:32:09,015 INFO L189 IndexEqualityManager]: detected not equals via solver [2020-04-18 07:32:09,016 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 24 [2020-04-18 07:32:09,017 INFO L539 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-04-18 07:32:09,025 INFO L619 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-04-18 07:32:09,025 INFO L539 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-04-18 07:32:09,026 INFO L239 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:31, output treesize:16 [2020-04-18 07:32:09,042 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 7 [2020-04-18 07:32:09,043 INFO L539 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-04-18 07:32:09,044 INFO L619 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-04-18 07:32:09,044 INFO L539 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-04-18 07:32:09,044 INFO L239 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:22, output treesize:1 [2020-04-18 07:32:09,051 INFO L134 CoverageAnalysis]: Checked inductivity of 67 backedges. 27 proven. 20 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2020-04-18 07:32:09,051 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-04-18 07:32:09,051 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 7] total 14 [2020-04-18 07:32:09,052 INFO L201 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-04-18 07:32:09,079 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 07:32:09,257 INFO L259 McrAutomatonBuilder]: Finished intersection with 93 states and 128 transitions. [2020-04-18 07:32:09,258 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-04-18 07:32:09,401 INFO L356 McrAutomatonBuilder]: Construction finished. Needed to calculate wp 11 times. [2020-04-18 07:32:09,401 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2020-04-18 07:32:09,402 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=164, Unknown=0, NotChecked=0, Total=210 [2020-04-18 07:32:09,402 INFO L87 Difference]: Start difference. First operand 601 states and 1132 transitions. Second operand 14 states. [2020-04-18 07:32:11,254 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 07:32:11,254 INFO L93 Difference]: Finished difference Result 685 states and 1279 transitions. [2020-04-18 07:32:11,254 INFO L276 IsEmpty]: Start isEmpty. Operand 685 states and 1279 transitions. [2020-04-18 07:32:11,256 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-04-18 07:32:11,257 INFO L354 FreeRefinementEngine]: Using interpolant generator StrategyModuleMcr [810482721] [2020-04-18 07:32:11,257 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-04-18 07:32:11,257 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-04-18 07:32:11,257 INFO L156 tionRefinementEngine]: Using interpolant automaton builder StrategyModuleMcr [810482721] [2020-04-18 07:32:11,258 INFO L459 AbstractCegarLoop]: Interpolant automaton has 15 states [2020-04-18 07:32:11,258 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy MCR [2020-04-18 07:32:11,258 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2020-04-18 07:32:11,258 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=220, Invalid=536, Unknown=0, NotChecked=0, Total=756 [2020-04-18 07:32:11,258 INFO L87 Difference]: Start difference. First operand 344 states and 662 transitions. Second operand 15 states. [2020-04-18 07:32:12,812 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 07:32:12,813 INFO L93 Difference]: Finished difference Result 708 states and 1355 transitions. [2020-04-18 07:32:12,813 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2020-04-18 07:32:12,813 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 56 [2020-04-18 07:32:12,814 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-04-18 07:32:12,819 INFO L225 Difference]: With dead ends: 708 [2020-04-18 07:32:12,819 INFO L226 Difference]: Without dead ends: 708 [2020-04-18 07:32:12,820 INFO L678 BasicCegarLoop]: 0 DeclaredPredicates, 215 GetRequests, 164 SyntacticMatches, 0 SemanticMatches, 51 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 764 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=725, Invalid=2031, Unknown=0, NotChecked=0, Total=2756 [2020-04-18 07:32:12,822 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 708 states. [2020-04-18 07:32:12,832 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 708 to 468. [2020-04-18 07:32:12,832 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 468 states. [2020-04-18 07:32:12,833 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 468 states to 468 states and 887 transitions. [2020-04-18 07:32:12,833 INFO L78 Accepts]: Start accepts. Automaton has 468 states and 887 transitions. Word has length 56 [2020-04-18 07:32:12,834 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-04-18 07:32:12,834 INFO L479 AbstractCegarLoop]: Abstraction has 468 states and 887 transitions. [2020-04-18 07:32:12,834 INFO L480 AbstractCegarLoop]: Interpolant automaton has 15 states. [2020-04-18 07:32:12,834 INFO L276 IsEmpty]: Start isEmpty. Operand 468 states and 887 transitions. [2020-04-18 07:32:12,835 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2020-04-18 07:32:12,835 INFO L417 BasicCegarLoop]: Found error trace [2020-04-18 07:32:12,835 INFO L425 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-04-18 07:32:13,039 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-04-18 07:32:13,040 INFO L427 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-04-18 07:32:13,040 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 07:32:13,041 INFO L82 PathProgramCache]: Analyzing trace with hash 967982549, now seen corresponding path program 4 times [2020-04-18 07:32:13,041 INFO L163 FreeRefinementEngine]: Executing refinement strategy MCR [2020-04-18 07:32:13,041 INFO L354 FreeRefinementEngine]: Using trace check StrategyModuleMcr [769437131] [2020-04-18 07:32:13,044 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 07:32:13,057 INFO L259 McrAutomatonBuilder]: Finished intersection with 716 states and 1365 transitions. [2020-04-18 07:32:13,062 INFO L276 IsEmpty]: Start isEmpty. Operand 716 states. [2020-04-18 07:32:13,065 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2020-04-18 07:32:13,065 INFO L105 Mcr]: ---- MCR iteration 0 ---- [2020-04-18 07:32:13,065 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 07:32:13,066 INFO L82 PathProgramCache]: Analyzing trace with hash -235827691, now seen corresponding path program 5 times [2020-04-18 07:32:13,066 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-18 07:32:13,066 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1768976184] [2020-04-18 07:32:13,066 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-18 07:32:13,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-18 07:32:13,127 INFO L134 CoverageAnalysis]: Checked inductivity of 96 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 80 trivial. 0 not checked. [2020-04-18 07:32:13,127 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1768976184] [2020-04-18 07:32:13,128 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-18 07:32:13,128 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-04-18 07:32:13,128 INFO L201 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-04-18 07:32:13,154 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 07:32:13,218 INFO L259 McrAutomatonBuilder]: Finished intersection with 66 states and 65 transitions. [2020-04-18 07:32:13,218 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-04-18 07:32:13,221 INFO L356 McrAutomatonBuilder]: Construction finished. Needed to calculate wp 0 times. [2020-04-18 07:32:13,221 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-04-18 07:32:13,221 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-04-18 07:32:13,221 INFO L87 Difference]: Start difference. First operand 716 states. Second operand 3 states. [2020-04-18 07:32:13,236 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 07:32:13,236 INFO L93 Difference]: Finished difference Result 727 states and 1375 transitions. [2020-04-18 07:32:13,236 INFO L276 IsEmpty]: Start isEmpty. Operand 727 states and 1375 transitions. [2020-04-18 07:32:13,238 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2020-04-18 07:32:13,238 INFO L105 Mcr]: ---- MCR iteration 1 ---- [2020-04-18 07:32:13,238 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 07:32:13,238 INFO L82 PathProgramCache]: Analyzing trace with hash 967982549, now seen corresponding path program 6 times [2020-04-18 07:32:13,238 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-18 07:32:13,239 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1826155366] [2020-04-18 07:32:13,239 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-18 07:32:13,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-18 07:32:13,384 INFO L134 CoverageAnalysis]: Checked inductivity of 96 backedges. 0 proven. 96 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-04-18 07:32:13,385 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1826155366] [2020-04-18 07:32:13,385 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1844149838] [2020-04-18 07:32:13,385 INFO L92 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-04-18 07:32:15,063 INFO L249 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 6 check-sat command(s) [2020-04-18 07:32:15,063 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2020-04-18 07:32:15,067 INFO L264 TraceCheckSpWp]: Trace formula consists of 328 conjuncts, 54 conjunts are in the unsatisfiable core [2020-04-18 07:32:15,070 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2020-04-18 07:32:15,087 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 197 treesize of output 181 [2020-04-18 07:32:15,088 INFO L539 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-04-18 07:32:15,138 INFO L619 ElimStorePlain]: treesize reduction 130, result has 13.3 percent of original size [2020-04-18 07:32:15,140 INFO L539 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2020-04-18 07:32:15,140 INFO L239 ElimStorePlain]: Needed 2 recursive calls to eliminate 4 variables, input treesize:24, output treesize:8 [2020-04-18 07:32:15,171 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2020-04-18 07:32:15,171 INFO L539 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-04-18 07:32:15,176 INFO L619 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-04-18 07:32:15,177 INFO L539 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-04-18 07:32:15,177 INFO L239 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:21, output treesize:17 [2020-04-18 07:32:15,196 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 24 [2020-04-18 07:32:15,197 INFO L539 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-04-18 07:32:15,205 INFO L619 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-04-18 07:32:15,206 INFO L539 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-04-18 07:32:15,206 INFO L239 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:32, output treesize:17 [2020-04-18 07:32:15,233 INFO L172 IndexEqualityManager]: detected equality via solver [2020-04-18 07:32:15,246 INFO L343 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-04-18 07:32:15,246 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 2 case distinctions, treesize of input 34 treesize of output 57 [2020-04-18 07:32:15,247 INFO L539 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-04-18 07:32:15,283 INFO L619 ElimStorePlain]: treesize reduction 30, result has 55.2 percent of original size [2020-04-18 07:32:15,283 INFO L539 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-04-18 07:32:15,284 INFO L239 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:47, output treesize:23 [2020-04-18 07:32:15,316 INFO L189 IndexEqualityManager]: detected not equals via solver [2020-04-18 07:32:15,317 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 24 [2020-04-18 07:32:15,317 INFO L539 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-04-18 07:32:15,333 INFO L619 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-04-18 07:32:15,334 INFO L539 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-04-18 07:32:15,335 INFO L239 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:38, output treesize:23 [2020-04-18 07:32:15,369 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 15 [2020-04-18 07:32:15,370 INFO L539 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-04-18 07:32:15,376 INFO L619 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-04-18 07:32:15,376 INFO L539 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-04-18 07:32:15,376 INFO L239 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:38, output treesize:17 [2020-04-18 07:32:15,400 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 24 [2020-04-18 07:32:15,401 INFO L539 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-04-18 07:32:15,413 INFO L619 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-04-18 07:32:15,414 INFO L539 ElimStorePlain]: Start of recursive call 1: 4 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-04-18 07:32:15,414 INFO L239 ElimStorePlain]: Needed 2 recursive calls to eliminate 5 variables, input treesize:32, output treesize:13 [2020-04-18 07:32:15,454 INFO L172 IndexEqualityManager]: detected equality via solver [2020-04-18 07:32:15,479 INFO L343 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-04-18 07:32:15,480 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 32 treesize of output 91 [2020-04-18 07:32:15,481 INFO L539 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-04-18 07:32:15,507 INFO L619 ElimStorePlain]: treesize reduction 63, result has 28.4 percent of original size [2020-04-18 07:32:15,509 INFO L539 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-04-18 07:32:15,509 INFO L239 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:35, output treesize:11 [2020-04-18 07:32:15,549 INFO L189 IndexEqualityManager]: detected not equals via solver [2020-04-18 07:32:15,549 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 22 [2020-04-18 07:32:15,550 INFO L539 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-04-18 07:32:15,558 INFO L619 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-04-18 07:32:15,558 INFO L539 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-04-18 07:32:15,558 INFO L239 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:26, output treesize:11 [2020-04-18 07:32:15,569 INFO L134 CoverageAnalysis]: Checked inductivity of 96 backedges. 63 proven. 10 refuted. 0 times theorem prover too weak. 23 trivial. 0 not checked. [2020-04-18 07:32:15,570 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-04-18 07:32:15,570 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 11] total 19 [2020-04-18 07:32:15,570 INFO L201 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-04-18 07:32:15,597 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 07:32:15,757 INFO L259 McrAutomatonBuilder]: Finished intersection with 111 states and 155 transitions. [2020-04-18 07:32:15,757 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-04-18 07:32:16,063 INFO L356 McrAutomatonBuilder]: Construction finished. Needed to calculate wp 15 times. [2020-04-18 07:32:16,063 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2020-04-18 07:32:16,064 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=74, Invalid=306, Unknown=0, NotChecked=0, Total=380 [2020-04-18 07:32:16,064 INFO L87 Difference]: Start difference. First operand 727 states and 1375 transitions. Second operand 19 states. [2020-04-18 07:32:20,380 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 07:32:20,380 INFO L93 Difference]: Finished difference Result 1136 states and 2137 transitions. [2020-04-18 07:32:20,381 INFO L276 IsEmpty]: Start isEmpty. Operand 1136 states and 2137 transitions. [2020-04-18 07:32:20,383 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-04-18 07:32:20,383 INFO L354 FreeRefinementEngine]: Using interpolant generator StrategyModuleMcr [769437131] [2020-04-18 07:32:20,383 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-04-18 07:32:20,384 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9 [2020-04-18 07:32:20,384 INFO L156 tionRefinementEngine]: Using interpolant automaton builder StrategyModuleMcr [769437131] [2020-04-18 07:32:20,384 INFO L459 AbstractCegarLoop]: Interpolant automaton has 20 states [2020-04-18 07:32:20,384 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy MCR [2020-04-18 07:32:20,384 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2020-04-18 07:32:20,385 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=522, Invalid=1734, Unknown=0, NotChecked=0, Total=2256 [2020-04-18 07:32:20,385 INFO L87 Difference]: Start difference. First operand 468 states and 887 transitions. Second operand 20 states. [2020-04-18 07:32:23,211 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 07:32:23,211 INFO L93 Difference]: Finished difference Result 968 states and 1814 transitions. [2020-04-18 07:32:23,212 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 51 states. [2020-04-18 07:32:23,212 INFO L78 Accepts]: Start accepts. Automaton has 20 states. Word has length 65 [2020-04-18 07:32:23,212 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-04-18 07:32:23,218 INFO L225 Difference]: With dead ends: 968 [2020-04-18 07:32:23,218 INFO L226 Difference]: Without dead ends: 968 [2020-04-18 07:32:23,220 INFO L678 BasicCegarLoop]: 0 DeclaredPredicates, 282 GetRequests, 190 SyntacticMatches, 0 SemanticMatches, 92 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2974 ImplicationChecksByTransitivity, 2.5s TimeCoverageRelationStatistics Valid=1661, Invalid=7081, Unknown=0, NotChecked=0, Total=8742 [2020-04-18 07:32:23,222 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 968 states. [2020-04-18 07:32:23,235 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 968 to 704. [2020-04-18 07:32:23,236 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 704 states. [2020-04-18 07:32:23,237 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 704 states to 704 states and 1308 transitions. [2020-04-18 07:32:23,237 INFO L78 Accepts]: Start accepts. Automaton has 704 states and 1308 transitions. Word has length 65 [2020-04-18 07:32:23,238 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-04-18 07:32:23,238 INFO L479 AbstractCegarLoop]: Abstraction has 704 states and 1308 transitions. [2020-04-18 07:32:23,238 INFO L480 AbstractCegarLoop]: Interpolant automaton has 20 states. [2020-04-18 07:32:23,238 INFO L276 IsEmpty]: Start isEmpty. Operand 704 states and 1308 transitions. [2020-04-18 07:32:23,239 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2020-04-18 07:32:23,240 INFO L417 BasicCegarLoop]: Found error trace [2020-04-18 07:32:23,240 INFO L425 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 4, 4, 4, 4, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-04-18 07:32:23,445 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-04-18 07:32:23,446 INFO L427 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-04-18 07:32:23,446 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 07:32:23,447 INFO L82 PathProgramCache]: Analyzing trace with hash 68322069, now seen corresponding path program 7 times [2020-04-18 07:32:23,447 INFO L163 FreeRefinementEngine]: Executing refinement strategy MCR [2020-04-18 07:32:23,448 INFO L354 FreeRefinementEngine]: Using trace check StrategyModuleMcr [1253087860] [2020-04-18 07:32:23,451 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 07:32:23,457 INFO L259 McrAutomatonBuilder]: Finished intersection with 828 states and 1581 transitions. [2020-04-18 07:32:23,461 INFO L276 IsEmpty]: Start isEmpty. Operand 828 states. [2020-04-18 07:32:23,463 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2020-04-18 07:32:23,463 INFO L105 Mcr]: ---- MCR iteration 0 ---- [2020-04-18 07:32:23,463 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 07:32:23,463 INFO L82 PathProgramCache]: Analyzing trace with hash 1352240853, now seen corresponding path program 8 times [2020-04-18 07:32:23,464 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-18 07:32:23,464 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [226188991] [2020-04-18 07:32:23,464 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-18 07:32:23,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-18 07:32:23,520 INFO L134 CoverageAnalysis]: Checked inductivity of 136 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 117 trivial. 0 not checked. [2020-04-18 07:32:23,520 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [226188991] [2020-04-18 07:32:23,520 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-18 07:32:23,520 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-04-18 07:32:23,521 INFO L201 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-04-18 07:32:23,545 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 07:32:23,626 INFO L259 McrAutomatonBuilder]: Finished intersection with 74 states and 73 transitions. [2020-04-18 07:32:23,626 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-04-18 07:32:23,636 INFO L356 McrAutomatonBuilder]: Construction finished. Needed to calculate wp 0 times. [2020-04-18 07:32:23,637 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-04-18 07:32:23,637 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-04-18 07:32:23,637 INFO L87 Difference]: Start difference. First operand 828 states. Second operand 3 states. [2020-04-18 07:32:23,647 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 07:32:23,647 INFO L93 Difference]: Finished difference Result 839 states and 1591 transitions. [2020-04-18 07:32:23,647 INFO L276 IsEmpty]: Start isEmpty. Operand 839 states and 1591 transitions. [2020-04-18 07:32:23,651 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2020-04-18 07:32:23,651 INFO L105 Mcr]: ---- MCR iteration 1 ---- [2020-04-18 07:32:23,651 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 07:32:23,652 INFO L82 PathProgramCache]: Analyzing trace with hash 68322069, now seen corresponding path program 9 times [2020-04-18 07:32:23,652 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-18 07:32:23,652 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1664038704] [2020-04-18 07:32:23,652 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-18 07:32:23,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-18 07:32:23,780 INFO L134 CoverageAnalysis]: Checked inductivity of 136 backedges. 0 proven. 136 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-04-18 07:32:23,781 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1664038704] [2020-04-18 07:32:23,781 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1220885997] [2020-04-18 07:32:23,781 INFO L92 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 8 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-04-18 07:32:25,901 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 6 check-sat command(s) [2020-04-18 07:32:25,901 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2020-04-18 07:32:25,905 INFO L264 TraceCheckSpWp]: Trace formula consists of 335 conjuncts, 45 conjunts are in the unsatisfiable core [2020-04-18 07:32:25,910 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2020-04-18 07:32:25,930 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 81 treesize of output 79 [2020-04-18 07:32:25,931 INFO L539 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-04-18 07:32:25,985 INFO L619 ElimStorePlain]: treesize reduction 55, result has 60.4 percent of original size [2020-04-18 07:32:25,990 INFO L172 IndexEqualityManager]: detected equality via solver [2020-04-18 07:32:25,991 WARN L341 FreeRefinementEngine]: Global settings require throwing the following exception [2020-04-18 07:32:26,191 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-04-18 07:32:26,193 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction has thrown an exception: java.lang.UnsupportedOperationException: need array sort at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.SmtUtils.arrayEquality(SmtUtils.java:741) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.SmtUtils.binaryEquality(SmtUtils.java:644) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.ArrayIndexEqualityManager.checkEqualityStatusViaSolver(ArrayIndexEqualityManager.java:149) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.ArrayIndexEqualityManager.checkEqualityStatus(ArrayIndexEqualityManager.java:131) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.Elim1Store.analyzeIndexEqualities(Elim1Store.java:609) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.Elim1Store.elim1(Elim1Store.java:233) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.ElimStorePlain.applyComplexEliminationRules(ElimStorePlain.java:403) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.ElimStorePlain.doElimOneRec(ElimStorePlain.java:289) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.ElimStorePlain.eliminateOne(ElimStorePlain.java:596) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.ElimStorePlain.doElimAllRec(ElimStorePlain.java:509) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.ElimStorePlain.startRecursiveElimination(ElimStorePlain.java:234) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.PartialQuantifierElimination.elim(PartialQuantifierElimination.java:306) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.PartialQuantifierElimination.tryToEliminate(PartialQuantifierElimination.java:102) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.predicates.IterativePredicateTransformer$QuantifierEliminationPostprocessor.postprocess(IterativePredicateTransformer.java:246) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.predicates.IterativePredicateTransformer.applyPostprocessors(IterativePredicateTransformer.java:440) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.predicates.IterativePredicateTransformer.computeStrongestPostconditionSequence(IterativePredicateTransformer.java:201) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheckSpWp.computeInterpolantsUsingUnsatCore(TraceCheckSpWp.java:300) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheckSpWp.computeInterpolants(TraceCheckSpWp.java:186) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheckSpWp.(TraceCheckSpWp.java:164) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleSpWp.construct(IpTcStrategyModuleSpWp.java:108) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleSpWp.construct(IpTcStrategyModuleSpWp.java:1) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getOrConstruct(IpTcStrategyModuleBase.java:101) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getInterpolantComputationStatus(IpTcStrategyModuleBase.java:77) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.tryExecuteInterpolantGenerator(AutomatonFreeRefinementEngine.java:290) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.generateProof(AutomatonFreeRefinementEngine.java:190) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.executeStrategy(AutomatonFreeRefinementEngine.java:180) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.(AutomatonFreeRefinementEngine.java:85) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.StrategyModuleMcr.getResult(StrategyModuleMcr.java:153) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.Mcr.exploreInterleavings(Mcr.java:106) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.Mcr.(Mcr.java:86) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.StrategyModuleMcr.getOrConstruct(StrategyModuleMcr.java:126) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.StrategyModuleMcr.isCorrect(StrategyModuleMcr.java:64) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.checkFeasibility(AutomatonFreeRefinementEngine.java:242) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.executeStrategy(AutomatonFreeRefinementEngine.java:166) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.(AutomatonFreeRefinementEngine.java:85) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:75) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:511) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterateInternal(AbstractCegarLoop.java:436) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:370) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.CegarLoopResult.iterate(CegarLoopResult.java:142) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.iterateNew(TraceAbstractionStarter.java:352) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:175) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:127) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:120) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:317) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:55) [2020-04-18 07:32:26,198 INFO L168 Benchmark]: Toolchain (without parser) took 34302.88 ms. Allocated memory was 148.4 MB in the beginning and 659.6 MB in the end (delta: 511.2 MB). Free memory was 104.3 MB in the beginning and 590.0 MB in the end (delta: -485.6 MB). Peak memory consumption was 25.5 MB. Max. memory is 7.1 GB. [2020-04-18 07:32:26,199 INFO L168 Benchmark]: CDTParser took 0.50 ms. Allocated memory is still 148.4 MB. Free memory was 124.7 MB in the beginning and 124.5 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2020-04-18 07:32:26,199 INFO L168 Benchmark]: CACSL2BoogieTranslator took 889.32 ms. Allocated memory was 148.4 MB in the beginning and 205.5 MB in the end (delta: 57.1 MB). Free memory was 102.4 MB in the beginning and 136.1 MB in the end (delta: -33.6 MB). Peak memory consumption was 31.5 MB. Max. memory is 7.1 GB. [2020-04-18 07:32:26,200 INFO L168 Benchmark]: Boogie Procedure Inliner took 66.39 ms. Allocated memory is still 205.5 MB. Free memory was 136.1 MB in the beginning and 132.9 MB in the end (delta: 3.2 MB). Peak memory consumption was 3.2 MB. Max. memory is 7.1 GB. [2020-04-18 07:32:26,200 INFO L168 Benchmark]: Boogie Preprocessor took 39.90 ms. Allocated memory is still 205.5 MB. Free memory was 132.9 MB in the beginning and 130.3 MB in the end (delta: 2.6 MB). Peak memory consumption was 2.6 MB. Max. memory is 7.1 GB. [2020-04-18 07:32:26,201 INFO L168 Benchmark]: RCFGBuilder took 1079.29 ms. Allocated memory was 205.5 MB in the beginning and 231.7 MB in the end (delta: 26.2 MB). Free memory was 130.3 MB in the beginning and 193.5 MB in the end (delta: -63.2 MB). Peak memory consumption was 39.1 MB. Max. memory is 7.1 GB. [2020-04-18 07:32:26,201 INFO L168 Benchmark]: TraceAbstraction took 32207.06 ms. Allocated memory was 231.7 MB in the beginning and 659.6 MB in the end (delta: 427.8 MB). Free memory was 193.5 MB in the beginning and 590.0 MB in the end (delta: -396.5 MB). Peak memory consumption was 31.3 MB. Max. memory is 7.1 GB. [2020-04-18 07:32:26,203 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.50 ms. Allocated memory is still 148.4 MB. Free memory was 124.7 MB in the beginning and 124.5 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 889.32 ms. Allocated memory was 148.4 MB in the beginning and 205.5 MB in the end (delta: 57.1 MB). Free memory was 102.4 MB in the beginning and 136.1 MB in the end (delta: -33.6 MB). Peak memory consumption was 31.5 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 66.39 ms. Allocated memory is still 205.5 MB. Free memory was 136.1 MB in the beginning and 132.9 MB in the end (delta: 3.2 MB). Peak memory consumption was 3.2 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 39.90 ms. Allocated memory is still 205.5 MB. Free memory was 132.9 MB in the beginning and 130.3 MB in the end (delta: 2.6 MB). Peak memory consumption was 2.6 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1079.29 ms. Allocated memory was 205.5 MB in the beginning and 231.7 MB in the end (delta: 26.2 MB). Free memory was 130.3 MB in the beginning and 193.5 MB in the end (delta: -63.2 MB). Peak memory consumption was 39.1 MB. Max. memory is 7.1 GB. * TraceAbstraction took 32207.06 ms. Allocated memory was 231.7 MB in the beginning and 659.6 MB in the end (delta: 427.8 MB). Free memory was 193.5 MB in the beginning and 590.0 MB in the end (delta: -396.5 MB). Peak memory consumption was 31.3 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks LbeTime: 7.2s, 196 ProgramPointsBefore, 53 ProgramPointsAfterwards, 204 TransitionsBefore, 55 TransitionsAfterwards, 9440 CoEnabledTransitionPairs, 8 FixpointIterations, 63 TrivialSequentialCompositions, 92 ConcurrentSequentialCompositions, 4 TrivialYvCompositions, 19 ConcurrentYvCompositions, 6 ChoiceCompositions, 4960 VarBasedMoverChecksPositive, 92 VarBasedMoverChecksNegative, 17 SemBasedMoverChecksPositive, 115 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.8s, 0 MoverChecksTotal, 17748 CheckedPairsTotal, 178 TotalNumberOfCompositions - ExceptionOrErrorResult: UnsupportedOperationException: need array sort de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: UnsupportedOperationException: need array sort: de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.SmtUtils.arrayEquality(SmtUtils.java:741) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request...