/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -s ../../../trunk/examples/settings/automizer/mcr/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-McrAutomaton-WP.epf -i ../../../trunk/examples/svcomp/pthread/stack_longer-1.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-507b705 [2020-09-11 20:23:52,314 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-11 20:23:52,318 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-11 20:23:52,369 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-11 20:23:52,369 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-11 20:23:52,380 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-11 20:23:52,383 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-11 20:23:52,387 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-11 20:23:52,390 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-11 20:23:52,394 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-11 20:23:52,395 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-11 20:23:52,398 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-11 20:23:52,398 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-11 20:23:52,401 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-11 20:23:52,404 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-11 20:23:52,406 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-11 20:23:52,407 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-11 20:23:52,409 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-11 20:23:52,411 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-11 20:23:52,417 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-11 20:23:52,420 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-11 20:23:52,421 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-11 20:23:52,422 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-11 20:23:52,423 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-11 20:23:52,428 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-11 20:23:52,429 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-11 20:23:52,429 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-11 20:23:52,432 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-11 20:23:52,433 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-11 20:23:52,435 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-11 20:23:52,435 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-11 20:23:52,436 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-11 20:23:52,436 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-11 20:23:52,437 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-11 20:23:52,438 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-11 20:23:52,439 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-11 20:23:52,439 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-11 20:23:52,440 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-11 20:23:52,440 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-11 20:23:52,441 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-11 20:23:52,443 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-11 20:23:52,444 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/mcr/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-McrAutomaton-WP.epf [2020-09-11 20:23:52,494 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-11 20:23:52,494 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-11 20:23:52,496 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-11 20:23:52,497 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-11 20:23:52,497 INFO L138 SettingsManager]: * Use SBE=true [2020-09-11 20:23:52,497 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-11 20:23:52,498 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-11 20:23:52,498 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-11 20:23:52,498 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-11 20:23:52,498 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-11 20:23:52,499 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-11 20:23:52,500 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-11 20:23:52,500 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-11 20:23:52,501 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-11 20:23:52,501 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-11 20:23:52,501 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-11 20:23:52,501 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-11 20:23:52,501 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-11 20:23:52,502 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-11 20:23:52,502 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-11 20:23:52,502 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-11 20:23:52,502 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-11 20:23:52,502 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-11 20:23:52,503 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=Craig_NestedInterpolation [2020-09-11 20:23:52,503 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-11 20:23:52,503 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-11 20:23:52,503 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-11 20:23:52,504 INFO L138 SettingsManager]: * Override the interpolant automaton setting of the refinement strategy=true [2020-09-11 20:23:52,504 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=VARIABLE_BASED_MOVER_CHECK [2020-09-11 20:23:52,504 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-11 20:23:52,504 INFO L138 SettingsManager]: * Interpolant automaton=MCR [2020-09-11 20:23:52,941 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-11 20:23:52,960 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-11 20:23:52,967 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-11 20:23:52,969 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-11 20:23:52,969 INFO L275 PluginConnector]: CDTParser initialized [2020-09-11 20:23:52,971 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread/stack_longer-1.i [2020-09-11 20:23:53,054 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/c81f0d962/843cd31511ac40a4a9c18c668d8fc718/FLAG71bd711a4 [2020-09-11 20:23:53,774 INFO L306 CDTParser]: Found 1 translation units. [2020-09-11 20:23:53,775 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/pthread/stack_longer-1.i [2020-09-11 20:23:53,817 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/c81f0d962/843cd31511ac40a4a9c18c668d8fc718/FLAG71bd711a4 [2020-09-11 20:23:53,987 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/c81f0d962/843cd31511ac40a4a9c18c668d8fc718 [2020-09-11 20:23:54,006 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-11 20:23:54,013 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2020-09-11 20:23:54,015 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-11 20:23:54,016 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-11 20:23:54,021 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-11 20:23:54,022 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.09 08:23:53" (1/1) ... [2020-09-11 20:23:54,029 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2d6fcb0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 08:23:54, skipping insertion in model container [2020-09-11 20:23:54,029 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.09 08:23:53" (1/1) ... [2020-09-11 20:23:54,042 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-11 20:23:54,118 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-11 20:23:54,703 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-11 20:23:54,723 INFO L203 MainTranslator]: Completed pre-run [2020-09-11 20:23:54,799 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-11 20:23:54,967 INFO L208 MainTranslator]: Completed translation [2020-09-11 20:23:54,968 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 08:23:54 WrapperNode [2020-09-11 20:23:54,968 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-11 20:23:54,970 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-09-11 20:23:54,970 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-09-11 20:23:54,970 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-09-11 20:23:54,984 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 08:23:54" (1/1) ... [2020-09-11 20:23:55,037 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 08:23:54" (1/1) ... [2020-09-11 20:23:55,080 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-09-11 20:23:55,081 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-11 20:23:55,081 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-11 20:23:55,081 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-11 20:23:55,094 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 08:23:54" (1/1) ... [2020-09-11 20:23:55,094 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 08:23:54" (1/1) ... [2020-09-11 20:23:55,099 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 08:23:54" (1/1) ... [2020-09-11 20:23:55,099 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 08:23:54" (1/1) ... [2020-09-11 20:23:55,110 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 08:23:54" (1/1) ... [2020-09-11 20:23:55,117 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 08:23:54" (1/1) ... [2020-09-11 20:23:55,120 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 08:23:54" (1/1) ... [2020-09-11 20:23:55,125 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-11 20:23:55,125 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-11 20:23:55,126 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-11 20:23:55,126 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-11 20:23:55,127 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 08:23:54" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/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 [2020-09-11 20:23:55,223 INFO L130 BoogieDeclarations]: Found specification of procedure t1 [2020-09-11 20:23:55,223 INFO L138 BoogieDeclarations]: Found implementation of procedure t1 [2020-09-11 20:23:55,224 INFO L130 BoogieDeclarations]: Found specification of procedure t2 [2020-09-11 20:23:55,224 INFO L138 BoogieDeclarations]: Found implementation of procedure t2 [2020-09-11 20:23:55,224 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-11 20:23:55,224 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-11 20:23:55,225 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-09-11 20:23:55,225 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-11 20:23:55,225 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2020-09-11 20:23:55,225 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-09-11 20:23:55,226 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-11 20:23:55,226 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-11 20:23:55,229 WARN L205 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2020-09-11 20:23:55,818 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-11 20:23:55,818 INFO L295 CfgBuilder]: Removed 26 assume(true) statements. [2020-09-11 20:23:55,822 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.09 08:23:55 BoogieIcfgContainer [2020-09-11 20:23:55,822 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-11 20:23:55,824 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-11 20:23:55,824 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-11 20:23:55,828 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-11 20:23:55,829 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 11.09 08:23:53" (1/3) ... [2020-09-11 20:23:55,830 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@31503696 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.09 08:23:55, skipping insertion in model container [2020-09-11 20:23:55,830 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 08:23:54" (2/3) ... [2020-09-11 20:23:55,831 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@31503696 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.09 08:23:55, skipping insertion in model container [2020-09-11 20:23:55,831 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.09 08:23:55" (3/3) ... [2020-09-11 20:23:55,833 INFO L109 eAbstractionObserver]: Analyzing ICFG stack_longer-1.i [2020-09-11 20:23:55,846 WARN L146 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2020-09-11 20:23:55,846 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-11 20:23:55,858 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 2 error locations. [2020-09-11 20:23:55,860 INFO L340 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2020-09-11 20:23:55,913 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 20:23:55,914 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 20:23:55,914 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 20:23:55,914 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 20:23:55,915 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 20:23:55,915 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~tmp~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 20:23:55,915 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 20:23:55,915 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 20:23:55,916 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 20:23:55,916 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 20:23:55,916 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 20:23:55,916 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~nondet42| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 20:23:55,916 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~nondet42| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 20:23:55,917 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~nondet43| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 20:23:55,917 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~tmp~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 20:23:55,917 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~nondet43| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 20:23:55,917 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~tmp~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 20:23:55,918 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 20:23:55,918 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 20:23:55,918 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 20:23:55,918 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 20:23:55,919 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 20:23:55,919 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 20:23:55,919 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~tmp~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 20:23:55,919 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_#in~stack.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 20:23:55,919 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_#in~stack.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 20:23:55,920 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_#in~x| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 20:23:55,920 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 20:23:55,920 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_push_~stack.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 20:23:55,920 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_#t~nondet33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 20:23:55,921 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_push_~x not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 20:23:55,921 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_#t~ret35| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 20:23:55,921 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_push_~stack.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 20:23:55,921 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_#in~stack.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 20:23:55,921 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_#in~stack.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 20:23:55,922 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_push_~stack.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 20:23:55,922 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_push_~stack.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 20:23:55,922 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_#in~x| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 20:23:55,922 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_push_~x not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 20:23:55,923 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_#t~nondet33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 20:23:55,923 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_get_top_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 20:23:55,923 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 20:23:55,923 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_get_top_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 20:23:55,924 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 20:23:55,924 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~ret44| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 20:23:55,924 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_get_top_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 20:23:55,924 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_#t~ret35| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 20:23:55,924 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~ret44| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 20:23:55,925 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_#t~ret35| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 20:23:55,925 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~ret44| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 20:23:55,925 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~ret44| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 20:23:55,925 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_push_~stack.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 20:23:55,926 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_push_~x not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 20:23:55,926 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_push_~stack.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 20:23:55,926 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_#t~ret35| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 20:23:55,926 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~ret44| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 20:23:55,927 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~ret44| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 20:23:55,927 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_#t~ret35| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 20:23:55,927 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_inc_top_#t~post30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 20:23:55,927 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_inc_top_#t~post30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 20:23:55,928 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 20:23:55,928 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~post41| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 20:23:55,928 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_inc_top_#t~post30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 20:23:55,928 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~post41| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 20:23:55,928 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 20:23:55,929 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_inc_top_#t~post30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 20:23:55,929 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~post41| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 20:23:55,929 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 20:23:55,930 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 20:23:55,931 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 20:23:55,931 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 20:23:55,931 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 20:23:55,931 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 20:23:55,931 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 20:23:55,932 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 20:23:55,932 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 20:23:55,932 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 20:23:55,932 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 20:23:55,933 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#t~nondet46| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 20:23:55,933 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#t~nondet46| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 20:23:55,933 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#in~stack.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 20:23:55,933 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#in~stack.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 20:23:55,934 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 20:23:55,934 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 20:23:55,934 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#t~post45| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 20:23:55,934 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#t~mem40| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 20:23:55,935 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#t~nondet37| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 20:23:55,935 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#t~ret36| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 20:23:55,935 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_pop_~stack.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 20:23:55,935 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#t~ret39| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 20:23:55,935 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_pop_~stack.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 20:23:55,936 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#t~post45| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 20:23:55,936 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 20:23:55,936 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#in~stack.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 20:23:55,936 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#in~stack.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 20:23:55,936 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_pop_~stack.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 20:23:55,937 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_pop_~stack.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 20:23:55,937 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#t~post45| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 20:23:55,937 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_get_top_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 20:23:55,937 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_get_top_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 20:23:55,938 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_get_top_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 20:23:55,938 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#t~ret36| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 20:23:55,938 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#t~ret36| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 20:23:55,938 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#t~ret36| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 20:23:55,939 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#t~ret36| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 20:23:55,939 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#t~ret36| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 20:23:55,939 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#t~ret36| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 20:23:55,939 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#t~nondet37| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 20:23:55,939 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_dec_top_#t~post31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 20:23:55,940 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 20:23:55,940 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_dec_top_#t~post31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 20:23:55,940 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 20:23:55,940 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#t~ret47| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 20:23:55,941 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_dec_top_#t~post31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 20:23:55,941 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#t~ret47| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 20:23:55,941 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_dec_top_#t~post31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 20:23:55,941 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#t~ret47| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 20:23:55,942 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#t~ret47| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 20:23:55,942 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_get_top_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 20:23:55,942 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#t~ret47| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 20:23:55,942 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#t~ret47| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 20:23:55,942 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_get_top_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 20:23:55,943 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_get_top_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 20:23:55,943 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#t~ret39| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 20:23:55,943 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#t~ret39| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 20:23:55,943 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_pop_~stack.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 20:23:55,943 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#t~ret39| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 20:23:55,944 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_pop_~stack.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 20:23:55,944 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#t~mem40| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 20:23:55,944 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#t~mem40| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 20:23:55,944 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 20:23:55,945 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#t~mem40| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 20:23:55,945 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#t~ret39| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 20:23:55,950 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_#in~x| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 20:23:55,950 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~ret44| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 20:23:55,950 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 20:23:55,950 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_inc_top_#t~post30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 20:23:55,951 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 20:23:55,951 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_push_~stack.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 20:23:55,951 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_#t~ret35| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 20:23:55,951 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 20:23:55,951 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 20:23:55,952 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_#t~nondet33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 20:23:55,952 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_push_~stack.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 20:23:55,952 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 20:23:55,952 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~tmp~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 20:23:55,953 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_#in~stack.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 20:23:55,953 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_push_~x not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 20:23:55,953 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 20:23:55,953 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~post41| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 20:23:55,953 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_get_top_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 20:23:55,954 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 20:23:55,954 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 20:23:55,954 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~nondet42| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 20:23:55,954 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_#in~stack.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 20:23:55,954 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~nondet43| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 20:23:55,961 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#t~nondet46| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 20:23:55,962 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#t~ret39| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 20:23:55,962 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_pop_~stack.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 20:23:55,962 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#t~ret47| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 20:23:55,962 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 20:23:55,962 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 20:23:55,963 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 20:23:55,963 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#t~post45| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 20:23:55,963 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_dec_top_#t~post31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 20:23:55,963 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#in~stack.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 20:23:55,963 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#t~ret36| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 20:23:55,964 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_get_top_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 20:23:55,964 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 20:23:55,964 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#t~mem40| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 20:23:55,964 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#t~nondet37| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 20:23:55,964 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 20:23:55,965 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#in~stack.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 20:23:55,965 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 20:23:55,965 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_pop_~stack.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 20:23:55,998 INFO L251 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2020-09-11 20:23:56,021 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-11 20:23:56,022 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-11 20:23:56,022 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-11 20:23:56,022 INFO L378 AbstractCegarLoop]: Backedges is MCR [2020-09-11 20:23:56,022 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-11 20:23:56,022 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-11 20:23:56,022 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-11 20:23:56,023 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-11 20:23:56,042 INFO L152 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 140 places, 145 transitions, 312 flow [2020-09-11 20:23:56,045 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 140 places, 145 transitions, 312 flow [2020-09-11 20:23:56,118 INFO L129 PetriNetUnfolder]: 11/145 cut-off events. [2020-09-11 20:23:56,118 INFO L130 PetriNetUnfolder]: For 4/4 co-relation queries the response was YES. [2020-09-11 20:23:56,131 INFO L80 FinitePrefix]: Finished finitePrefix Result has 156 conditions, 145 events. 11/145 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 383 event pairs, 0 based on Foata normal form. 0/133 useless extension candidates. Maximal degree in co-relation 113. Up to 3 conditions per place. [2020-09-11 20:23:56,138 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 140 places, 145 transitions, 312 flow [2020-09-11 20:23:56,174 INFO L129 PetriNetUnfolder]: 11/145 cut-off events. [2020-09-11 20:23:56,174 INFO L130 PetriNetUnfolder]: For 4/4 co-relation queries the response was YES. [2020-09-11 20:23:56,177 INFO L80 FinitePrefix]: Finished finitePrefix Result has 156 conditions, 145 events. 11/145 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 383 event pairs, 0 based on Foata normal form. 0/133 useless extension candidates. Maximal degree in co-relation 113. Up to 3 conditions per place. [2020-09-11 20:23:56,183 INFO L158 etLargeBlockEncoding]: Number of co-enabled transitions 6532 [2020-09-11 20:23:56,184 INFO L182 etLargeBlockEncoding]: Variable Check. [2020-09-11 20:23:58,567 WARN L193 SmtUtils]: Spent 139.00 ms on a formula simplification that was a NOOP. DAG size: 93 [2020-09-11 20:23:58,692 WARN L193 SmtUtils]: Spent 121.00 ms on a formula simplification that was a NOOP. DAG size: 87 [2020-09-11 20:23:59,457 WARN L193 SmtUtils]: Spent 565.00 ms on a formula simplification. DAG size of input: 116 DAG size of output: 108 [2020-09-11 20:23:59,697 WARN L193 SmtUtils]: Spent 236.00 ms on a formula simplification that was a NOOP. DAG size: 104 [2020-09-11 20:23:59,737 INFO L206 etLargeBlockEncoding]: Checked pairs total: 8325 [2020-09-11 20:23:59,738 INFO L214 etLargeBlockEncoding]: Total number of compositions: 124 [2020-09-11 20:23:59,743 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 41 places, 41 transitions, 104 flow [2020-09-11 20:23:59,769 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 360 states. [2020-09-11 20:23:59,772 INFO L276 IsEmpty]: Start isEmpty. Operand 360 states. [2020-09-11 20:23:59,781 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2020-09-11 20:23:59,782 INFO L414 BasicCegarLoop]: Found error trace [2020-09-11 20:23:59,783 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2020-09-11 20:23:59,784 INFO L427 AbstractCegarLoop]: === Iteration 1 === [t1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION, t1Err0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-11 20:23:59,791 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-11 20:23:59,792 INFO L82 PathProgramCache]: Analyzing trace with hash 447198837, now seen corresponding path program 1 times [2020-09-11 20:23:59,823 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-11 20:23:59,823 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1538461795] [2020-09-11 20:23:59,824 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-11 20:24:00,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-11 20:24:00,124 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-11 20:24:00,125 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1538461795] [2020-09-11 20:24:00,126 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-11 20:24:00,126 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-09-11 20:24:00,127 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [606828868] [2020-09-11 20:24:00,129 INFO L216 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-09-11 20:24:00,132 INFO L271 McrAutomatonBuilder]: Started intersection. [2020-09-11 20:24:00,150 INFO L274 McrAutomatonBuilder]: Finished intersection with 7 states and 6 transitions. [2020-09-11 20:24:00,151 INFO L299 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-09-11 20:24:00,153 INFO L399 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-09-11 20:24:00,154 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-11 20:24:00,154 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-11 20:24:00,174 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-11 20:24:00,175 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-11 20:24:00,178 INFO L87 Difference]: Start difference. First operand 360 states. Second operand 3 states. [2020-09-11 20:24:00,254 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-11 20:24:00,254 INFO L93 Difference]: Finished difference Result 577 states and 1453 transitions. [2020-09-11 20:24:00,255 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-11 20:24:00,257 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 6 [2020-09-11 20:24:00,257 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-11 20:24:00,284 INFO L225 Difference]: With dead ends: 577 [2020-09-11 20:24:00,285 INFO L226 Difference]: Without dead ends: 555 [2020-09-11 20:24:00,287 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-11 20:24:00,318 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 555 states. [2020-09-11 20:24:00,386 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 555 to 515. [2020-09-11 20:24:00,388 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 515 states. [2020-09-11 20:24:00,395 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 515 states to 515 states and 1354 transitions. [2020-09-11 20:24:00,397 INFO L78 Accepts]: Start accepts. Automaton has 515 states and 1354 transitions. Word has length 6 [2020-09-11 20:24:00,398 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-11 20:24:00,398 INFO L479 AbstractCegarLoop]: Abstraction has 515 states and 1354 transitions. [2020-09-11 20:24:00,398 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-11 20:24:00,398 INFO L276 IsEmpty]: Start isEmpty. Operand 515 states and 1354 transitions. [2020-09-11 20:24:00,399 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-09-11 20:24:00,400 INFO L414 BasicCegarLoop]: Found error trace [2020-09-11 20:24:00,400 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-11 20:24:00,400 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-11 20:24:00,401 INFO L427 AbstractCegarLoop]: === Iteration 2 === [t1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION, t1Err0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-11 20:24:00,401 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-11 20:24:00,401 INFO L82 PathProgramCache]: Analyzing trace with hash 1139410892, now seen corresponding path program 1 times [2020-09-11 20:24:00,401 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-11 20:24:00,402 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [760258782] [2020-09-11 20:24:00,402 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-11 20:24:00,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-11 20:24:00,590 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-11 20:24:00,591 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [760258782] [2020-09-11 20:24:00,591 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-11 20:24:00,591 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-09-11 20:24:00,591 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1433143668] [2020-09-11 20:24:00,592 INFO L216 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-09-11 20:24:00,593 INFO L271 McrAutomatonBuilder]: Started intersection. [2020-09-11 20:24:00,594 INFO L274 McrAutomatonBuilder]: Finished intersection with 10 states and 9 transitions. [2020-09-11 20:24:00,594 INFO L299 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-09-11 20:24:00,595 INFO L399 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-09-11 20:24:00,596 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-11 20:24:00,597 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-11 20:24:00,597 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-11 20:24:00,597 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-11 20:24:00,597 INFO L87 Difference]: Start difference. First operand 515 states and 1354 transitions. Second operand 3 states. [2020-09-11 20:24:00,615 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-11 20:24:00,615 INFO L93 Difference]: Finished difference Result 620 states and 1596 transitions. [2020-09-11 20:24:00,615 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-11 20:24:00,616 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 9 [2020-09-11 20:24:00,616 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-11 20:24:00,621 INFO L225 Difference]: With dead ends: 620 [2020-09-11 20:24:00,621 INFO L226 Difference]: Without dead ends: 598 [2020-09-11 20:24:00,622 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-11 20:24:00,627 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 598 states. [2020-09-11 20:24:00,667 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 598 to 558. [2020-09-11 20:24:00,667 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 558 states. [2020-09-11 20:24:00,674 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 558 states to 558 states and 1476 transitions. [2020-09-11 20:24:00,675 INFO L78 Accepts]: Start accepts. Automaton has 558 states and 1476 transitions. Word has length 9 [2020-09-11 20:24:00,676 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-11 20:24:00,676 INFO L479 AbstractCegarLoop]: Abstraction has 558 states and 1476 transitions. [2020-09-11 20:24:00,676 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-11 20:24:00,676 INFO L276 IsEmpty]: Start isEmpty. Operand 558 states and 1476 transitions. [2020-09-11 20:24:00,679 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-09-11 20:24:00,679 INFO L414 BasicCegarLoop]: Found error trace [2020-09-11 20:24:00,679 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-11 20:24:00,679 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-11 20:24:00,680 INFO L427 AbstractCegarLoop]: === Iteration 3 === [t1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION, t1Err0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-11 20:24:00,681 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-11 20:24:00,681 INFO L82 PathProgramCache]: Analyzing trace with hash 1261077674, now seen corresponding path program 1 times [2020-09-11 20:24:00,681 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-11 20:24:00,682 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [142566879] [2020-09-11 20:24:00,682 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-11 20:24:00,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-11 20:24:00,774 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-11 20:24:00,775 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [142566879] [2020-09-11 20:24:00,775 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-11 20:24:00,775 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-09-11 20:24:00,775 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [256773263] [2020-09-11 20:24:00,776 INFO L216 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-09-11 20:24:00,777 INFO L271 McrAutomatonBuilder]: Started intersection. [2020-09-11 20:24:00,778 INFO L274 McrAutomatonBuilder]: Finished intersection with 11 states and 10 transitions. [2020-09-11 20:24:00,778 INFO L299 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-09-11 20:24:00,779 INFO L399 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-09-11 20:24:00,779 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-11 20:24:00,779 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-11 20:24:00,779 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-11 20:24:00,780 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-11 20:24:00,780 INFO L87 Difference]: Start difference. First operand 558 states and 1476 transitions. Second operand 3 states. [2020-09-11 20:24:00,803 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-11 20:24:00,803 INFO L93 Difference]: Finished difference Result 594 states and 1567 transitions. [2020-09-11 20:24:00,804 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-11 20:24:00,804 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 10 [2020-09-11 20:24:00,804 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-11 20:24:00,809 INFO L225 Difference]: With dead ends: 594 [2020-09-11 20:24:00,809 INFO L226 Difference]: Without dead ends: 594 [2020-09-11 20:24:00,810 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-11 20:24:00,812 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 594 states. [2020-09-11 20:24:00,828 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 594 to 594. [2020-09-11 20:24:00,829 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 594 states. [2020-09-11 20:24:00,832 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 594 states to 594 states and 1567 transitions. [2020-09-11 20:24:00,832 INFO L78 Accepts]: Start accepts. Automaton has 594 states and 1567 transitions. Word has length 10 [2020-09-11 20:24:00,833 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-11 20:24:00,833 INFO L479 AbstractCegarLoop]: Abstraction has 594 states and 1567 transitions. [2020-09-11 20:24:00,833 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-11 20:24:00,833 INFO L276 IsEmpty]: Start isEmpty. Operand 594 states and 1567 transitions. [2020-09-11 20:24:00,835 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2020-09-11 20:24:00,835 INFO L414 BasicCegarLoop]: Found error trace [2020-09-11 20:24:00,835 INFO L422 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-11 20:24:00,835 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-11 20:24:00,836 INFO L427 AbstractCegarLoop]: === Iteration 4 === [t1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION, t1Err0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-11 20:24:00,836 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-11 20:24:00,836 INFO L82 PathProgramCache]: Analyzing trace with hash -171507785, now seen corresponding path program 1 times [2020-09-11 20:24:00,837 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-11 20:24:00,837 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1412092093] [2020-09-11 20:24:00,837 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-11 20:24:00,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-11 20:24:00,920 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 1 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-11 20:24:00,921 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1412092093] [2020-09-11 20:24:00,922 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [269831232] [2020-09-11 20:24:00,922 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate-2/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 [2020-09-11 20:24:01,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-11 20:24:01,017 INFO L263 TraceCheckSpWp]: Trace formula consists of 145 conjuncts, 4 conjunts are in the unsatisfiable core [2020-09-11 20:24:01,024 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-09-11 20:24:01,087 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 1 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-11 20:24:01,088 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-09-11 20:24:01,091 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 6 [2020-09-11 20:24:01,092 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1518027660] [2020-09-11 20:24:01,092 INFO L216 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-09-11 20:24:01,100 INFO L271 McrAutomatonBuilder]: Started intersection. [2020-09-11 20:24:01,103 INFO L274 McrAutomatonBuilder]: Finished intersection with 15 states and 14 transitions. [2020-09-11 20:24:01,104 INFO L299 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-09-11 20:24:01,105 INFO L399 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-09-11 20:24:01,105 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-09-11 20:24:01,145 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-11 20:24:01,145 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-09-11 20:24:01,146 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-09-11 20:24:01,146 INFO L87 Difference]: Start difference. First operand 594 states and 1567 transitions. Second operand 7 states. [2020-09-11 20:24:01,271 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-11 20:24:01,271 INFO L93 Difference]: Finished difference Result 894 states and 2283 transitions. [2020-09-11 20:24:01,272 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-11 20:24:01,272 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 14 [2020-09-11 20:24:01,272 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-11 20:24:01,279 INFO L225 Difference]: With dead ends: 894 [2020-09-11 20:24:01,279 INFO L226 Difference]: Without dead ends: 894 [2020-09-11 20:24:01,280 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2020-09-11 20:24:01,283 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 894 states. [2020-09-11 20:24:01,304 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 894 to 728. [2020-09-11 20:24:01,305 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 728 states. [2020-09-11 20:24:01,309 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 728 states to 728 states and 1913 transitions. [2020-09-11 20:24:01,310 INFO L78 Accepts]: Start accepts. Automaton has 728 states and 1913 transitions. Word has length 14 [2020-09-11 20:24:01,310 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-11 20:24:01,310 INFO L479 AbstractCegarLoop]: Abstraction has 728 states and 1913 transitions. [2020-09-11 20:24:01,310 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-09-11 20:24:01,310 INFO L276 IsEmpty]: Start isEmpty. Operand 728 states and 1913 transitions. [2020-09-11 20:24:01,316 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-09-11 20:24:01,316 INFO L414 BasicCegarLoop]: Found error trace [2020-09-11 20:24:01,316 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-11 20:24:01,531 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,2 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-09-11 20:24:01,532 INFO L427 AbstractCegarLoop]: === Iteration 5 === [t1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION, t1Err0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-11 20:24:01,533 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-11 20:24:01,533 INFO L82 PathProgramCache]: Analyzing trace with hash -284826607, now seen corresponding path program 1 times [2020-09-11 20:24:01,534 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-11 20:24:01,534 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1253679231] [2020-09-11 20:24:01,535 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-11 20:24:01,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-11 20:24:01,604 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-11 20:24:01,605 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1253679231] [2020-09-11 20:24:01,605 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-11 20:24:01,605 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-11 20:24:01,605 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1494717494] [2020-09-11 20:24:01,605 INFO L216 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-09-11 20:24:01,608 INFO L271 McrAutomatonBuilder]: Started intersection. [2020-09-11 20:24:01,615 INFO L274 McrAutomatonBuilder]: Finished intersection with 44 states and 69 transitions. [2020-09-11 20:24:01,615 INFO L299 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-09-11 20:24:01,793 INFO L399 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-09-11 20:24:01,793 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-11 20:24:01,793 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-11 20:24:01,793 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-11 20:24:01,793 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-11 20:24:01,794 INFO L87 Difference]: Start difference. First operand 728 states and 1913 transitions. Second operand 3 states. [2020-09-11 20:24:01,821 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-11 20:24:01,821 INFO L93 Difference]: Finished difference Result 375 states and 842 transitions. [2020-09-11 20:24:01,822 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-11 20:24:01,822 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 17 [2020-09-11 20:24:01,822 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-11 20:24:01,824 INFO L225 Difference]: With dead ends: 375 [2020-09-11 20:24:01,824 INFO L226 Difference]: Without dead ends: 375 [2020-09-11 20:24:01,825 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 27 SyntacticMatches, 10 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-11 20:24:01,826 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 375 states. [2020-09-11 20:24:01,834 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 375 to 355. [2020-09-11 20:24:01,834 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 355 states. [2020-09-11 20:24:01,836 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 355 states to 355 states and 792 transitions. [2020-09-11 20:24:01,836 INFO L78 Accepts]: Start accepts. Automaton has 355 states and 792 transitions. Word has length 17 [2020-09-11 20:24:01,836 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-11 20:24:01,837 INFO L479 AbstractCegarLoop]: Abstraction has 355 states and 792 transitions. [2020-09-11 20:24:01,837 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-11 20:24:01,837 INFO L276 IsEmpty]: Start isEmpty. Operand 355 states and 792 transitions. [2020-09-11 20:24:01,838 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2020-09-11 20:24:01,838 INFO L414 BasicCegarLoop]: Found error trace [2020-09-11 20:24:01,838 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-11 20:24:01,838 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-09-11 20:24:01,838 INFO L427 AbstractCegarLoop]: === Iteration 6 === [t1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION, t1Err0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-11 20:24:01,839 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-11 20:24:01,839 INFO L82 PathProgramCache]: Analyzing trace with hash 473969269, now seen corresponding path program 1 times [2020-09-11 20:24:01,839 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-11 20:24:01,840 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [555085000] [2020-09-11 20:24:01,840 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-11 20:24:01,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-11 20:24:01,931 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-11 20:24:01,931 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [555085000] [2020-09-11 20:24:01,932 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-11 20:24:01,932 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-09-11 20:24:01,932 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [2121301293] [2020-09-11 20:24:01,932 INFO L216 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-09-11 20:24:01,936 INFO L271 McrAutomatonBuilder]: Started intersection. [2020-09-11 20:24:01,943 INFO L274 McrAutomatonBuilder]: Finished intersection with 41 states and 62 transitions. [2020-09-11 20:24:01,943 INFO L299 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-09-11 20:24:02,046 INFO L399 McrAutomatonBuilder]: Construction finished. MCR generated 2 new interpolants: [9488#(<= 0 |t1Thread1of1ForFork0_inc_top_#t~post30|), 9489#(<= 0 ~top~0)] [2020-09-11 20:24:02,046 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-09-11 20:24:02,046 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-11 20:24:02,047 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-09-11 20:24:02,047 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-09-11 20:24:02,047 INFO L87 Difference]: Start difference. First operand 355 states and 792 transitions. Second operand 7 states. [2020-09-11 20:24:02,126 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-11 20:24:02,126 INFO L93 Difference]: Finished difference Result 458 states and 1008 transitions. [2020-09-11 20:24:02,127 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-09-11 20:24:02,127 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 18 [2020-09-11 20:24:02,127 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-11 20:24:02,130 INFO L225 Difference]: With dead ends: 458 [2020-09-11 20:24:02,130 INFO L226 Difference]: Without dead ends: 458 [2020-09-11 20:24:02,131 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 18 SyntacticMatches, 5 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=25, Invalid=47, Unknown=0, NotChecked=0, Total=72 [2020-09-11 20:24:02,132 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 458 states. [2020-09-11 20:24:02,141 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 458 to 397. [2020-09-11 20:24:02,142 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 397 states. [2020-09-11 20:24:02,144 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 397 states to 397 states and 896 transitions. [2020-09-11 20:24:02,144 INFO L78 Accepts]: Start accepts. Automaton has 397 states and 896 transitions. Word has length 18 [2020-09-11 20:24:02,144 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-11 20:24:02,144 INFO L479 AbstractCegarLoop]: Abstraction has 397 states and 896 transitions. [2020-09-11 20:24:02,145 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-09-11 20:24:02,145 INFO L276 IsEmpty]: Start isEmpty. Operand 397 states and 896 transitions. [2020-09-11 20:24:02,146 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2020-09-11 20:24:02,146 INFO L414 BasicCegarLoop]: Found error trace [2020-09-11 20:24:02,146 INFO L422 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] [2020-09-11 20:24:02,146 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-09-11 20:24:02,146 INFO L427 AbstractCegarLoop]: === Iteration 7 === [t1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION, t1Err0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-11 20:24:02,147 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-11 20:24:02,147 INFO L82 PathProgramCache]: Analyzing trace with hash -2059233600, now seen corresponding path program 1 times [2020-09-11 20:24:02,147 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-11 20:24:02,148 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [260452681] [2020-09-11 20:24:02,148 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-11 20:24:02,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-11 20:24:02,468 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-11 20:24:02,468 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [260452681] [2020-09-11 20:24:02,469 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-11 20:24:02,469 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-09-11 20:24:02,469 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [38024323] [2020-09-11 20:24:02,469 INFO L216 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-09-11 20:24:02,473 INFO L271 McrAutomatonBuilder]: Started intersection. [2020-09-11 20:24:02,481 INFO L274 McrAutomatonBuilder]: Finished intersection with 45 states and 66 transitions. [2020-09-11 20:24:02,481 INFO L299 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-09-11 20:24:02,501 INFO L603 QuantifierPusher]: Distributing 3 disjuncts over 3 conjuncts [2020-09-11 20:24:02,560 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-09-11 20:24:02,561 FATAL L? ?]: An unrecoverable error occured during an interaction with an SMT solver: de.uni_freiburg.informatik.ultimate.logic.SMTLIBException: line 47273 column 167: unknown constant t1Thread1of1ForFork0_push_~stack.offset at de.uni_freiburg.informatik.ultimate.smtsolver.external.Parser$Action$.CUP$do_action(Parser.java:1454) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Parser.do_action(Parser.java:654) at com.github.jhoenicke.javacup.runtime.LRParser.parse(LRParser.java:419) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.parse(Executor.java:205) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.parseSuccess(Executor.java:221) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Scriptor.assertTerm(Scriptor.java:145) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.arrays.DiffWrapperScript$DiffTransformer.checkOrAddAxiom(DiffWrapperScript.java:161) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.arrays.DiffWrapperScript$DiffTransformer.convertApplicationTerm(DiffWrapperScript.java:171) at de.uni_freiburg.informatik.ultimate.logic.TermTransformer$BuildApplicationTerm.walk(TermTransformer.java:339) at de.uni_freiburg.informatik.ultimate.logic.NonRecursive.run(NonRecursive.java:115) at de.uni_freiburg.informatik.ultimate.logic.NonRecursive.run(NonRecursive.java:106) at de.uni_freiburg.informatik.ultimate.logic.TermTransformer.transform(TermTransformer.java:272) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.arrays.DiffWrapperScript.assertTerm(DiffWrapperScript.java:109) at de.uni_freiburg.informatik.ultimate.logic.WrapperScript.assertTerm(WrapperScript.java:158) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.ManagedScript.assertTerm(ManagedScript.java:133) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.MonolithicImplicationChecker.checkImplication(MonolithicImplicationChecker.java:83) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier$PredicateComparison.compare(PredicateUnifier.java:829) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier$PredicateComparison.(PredicateUnifier.java:773) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate(PredicateUnifier.java:345) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate(PredicateUnifier.java:305) at de.uni_freiburg.informatik.ultimate.lib.mcr.McrAutomatonBuilder.buildInterpolantAutomaton(McrAutomatonBuilder.java:378) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpAbStrategyModuleMcr.buildInterpolantAutomaton(IpAbStrategyModuleMcr.java:50) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.generateProof(TraceAbstractionRefinementEngine.java:146) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:76) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:508) 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) [2020-09-11 20:24:02,566 INFO L168 Benchmark]: Toolchain (without parser) took 8558.81 ms. Allocated memory was 140.5 MB in the beginning and 284.7 MB in the end (delta: 144.2 MB). Free memory was 100.4 MB in the beginning and 93.4 MB in the end (delta: 7.1 MB). Peak memory consumption was 151.2 MB. Max. memory is 7.1 GB. [2020-09-11 20:24:02,567 INFO L168 Benchmark]: CDTParser took 0.20 ms. Allocated memory is still 140.5 MB. Free memory was 120.8 MB in the beginning and 120.6 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. [2020-09-11 20:24:02,568 INFO L168 Benchmark]: CACSL2BoogieTranslator took 953.99 ms. Allocated memory was 140.5 MB in the beginning and 204.5 MB in the end (delta: 64.0 MB). Free memory was 100.0 MB in the beginning and 135.0 MB in the end (delta: -35.0 MB). Peak memory consumption was 34.2 MB. Max. memory is 7.1 GB. [2020-09-11 20:24:02,569 INFO L168 Benchmark]: Boogie Procedure Inliner took 110.94 ms. Allocated memory is still 204.5 MB. Free memory was 135.0 MB in the beginning and 132.2 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 7.1 GB. [2020-09-11 20:24:02,569 INFO L168 Benchmark]: Boogie Preprocessor took 44.30 ms. Allocated memory is still 204.5 MB. Free memory was 132.2 MB in the beginning and 130.3 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 7.1 GB. [2020-09-11 20:24:02,570 INFO L168 Benchmark]: RCFGBuilder took 697.11 ms. Allocated memory is still 204.5 MB. Free memory was 130.3 MB in the beginning and 97.0 MB in the end (delta: 33.3 MB). Peak memory consumption was 33.3 MB. Max. memory is 7.1 GB. [2020-09-11 20:24:02,573 INFO L168 Benchmark]: TraceAbstraction took 6740.23 ms. Allocated memory was 204.5 MB in the beginning and 284.7 MB in the end (delta: 80.2 MB). Free memory was 97.0 MB in the beginning and 93.4 MB in the end (delta: 3.7 MB). Peak memory consumption was 83.9 MB. Max. memory is 7.1 GB. [2020-09-11 20:24:02,577 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20 ms. Allocated memory is still 140.5 MB. Free memory was 120.8 MB in the beginning and 120.6 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 953.99 ms. Allocated memory was 140.5 MB in the beginning and 204.5 MB in the end (delta: 64.0 MB). Free memory was 100.0 MB in the beginning and 135.0 MB in the end (delta: -35.0 MB). Peak memory consumption was 34.2 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 110.94 ms. Allocated memory is still 204.5 MB. Free memory was 135.0 MB in the beginning and 132.2 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 44.30 ms. Allocated memory is still 204.5 MB. Free memory was 132.2 MB in the beginning and 130.3 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 7.1 GB. * RCFGBuilder took 697.11 ms. Allocated memory is still 204.5 MB. Free memory was 130.3 MB in the beginning and 97.0 MB in the end (delta: 33.3 MB). Peak memory consumption was 33.3 MB. Max. memory is 7.1 GB. * TraceAbstraction took 6740.23 ms. Allocated memory was 204.5 MB in the beginning and 284.7 MB in the end (delta: 80.2 MB). Free memory was 97.0 MB in the beginning and 93.4 MB in the end (delta: 3.7 MB). Peak memory consumption was 83.9 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks LbeTime: 3.6s, 140 ProgramPointsBefore, 41 ProgramPointsAfterwards, 145 TransitionsBefore, 41 TransitionsAfterwards, 6532 CoEnabledTransitionPairs, 6 FixpointIterations, 26 TrivialSequentialCompositions, 79 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 19 ConcurrentYvCompositions, 5 ChoiceCompositions, 3614 VarBasedMoverChecksPositive, 53 VarBasedMoverChecksNegative, 0 SemBasedMoverChecksPositive, 0 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.0s, 0 MoverChecksTotal, 8325 CheckedPairsTotal, 124 TotalNumberOfCompositions - ExceptionOrErrorResult: SMTLIBException: line 47273 column 167: unknown constant t1Thread1of1ForFork0_push_~stack.offset de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMTLIBException: line 47273 column 167: unknown constant t1Thread1of1ForFork0_push_~stack.offset: de.uni_freiburg.informatik.ultimate.smtsolver.external.Parser$Action$.CUP$do_action(Parser.java:1454) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request...