/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/queue_ok_longest.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-1d1d2b5 [2020-10-21 23:38:26,893 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-21 23:38:26,896 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-21 23:38:26,938 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-21 23:38:26,938 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-21 23:38:26,948 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-21 23:38:26,950 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-21 23:38:26,955 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-21 23:38:26,956 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-21 23:38:26,959 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-21 23:38:26,960 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-21 23:38:26,961 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-21 23:38:26,961 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-21 23:38:26,964 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-21 23:38:26,966 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-21 23:38:26,968 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-21 23:38:26,970 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-21 23:38:26,971 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-21 23:38:26,972 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-21 23:38:26,978 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-21 23:38:26,980 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-21 23:38:26,981 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-21 23:38:26,982 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-21 23:38:26,983 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-21 23:38:26,988 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-10-21 23:38:26,993 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-21 23:38:26,994 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-21 23:38:26,995 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-21 23:38:26,996 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-21 23:38:26,997 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-21 23:38:26,997 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-21 23:38:26,998 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-21 23:38:26,998 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-21 23:38:26,998 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-21 23:38:27,000 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-21 23:38:27,001 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-21 23:38:27,002 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/mcr/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-McrAutomaton-WP.epf [2020-10-21 23:38:27,045 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-21 23:38:27,045 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-21 23:38:27,047 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-21 23:38:27,048 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-21 23:38:27,048 INFO L138 SettingsManager]: * Use SBE=true [2020-10-21 23:38:27,048 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-21 23:38:27,048 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-21 23:38:27,049 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-21 23:38:27,049 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-21 23:38:27,049 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-21 23:38:27,050 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-21 23:38:27,051 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-21 23:38:27,051 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-21 23:38:27,051 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-21 23:38:27,051 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-21 23:38:27,051 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-21 23:38:27,052 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-21 23:38:27,052 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-21 23:38:27,052 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-21 23:38:27,052 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-21 23:38:27,052 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-21 23:38:27,052 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-21 23:38:27,053 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-21 23:38:27,053 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=Craig_NestedInterpolation [2020-10-21 23:38:27,053 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-21 23:38:27,053 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-21 23:38:27,053 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-21 23:38:27,054 INFO L138 SettingsManager]: * Override the interpolant automaton setting of the refinement strategy=true [2020-10-21 23:38:27,054 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=VARIABLE_BASED_MOVER_CHECK [2020-10-21 23:38:27,054 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-21 23:38:27,054 INFO L138 SettingsManager]: * Interpolant automaton=MCR [2020-10-21 23:38:27,314 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-21 23:38:27,325 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-21 23:38:27,329 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-21 23:38:27,330 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-21 23:38:27,331 INFO L275 PluginConnector]: CDTParser initialized [2020-10-21 23:38:27,331 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread/queue_ok_longest.i [2020-10-21 23:38:27,399 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/12d106908/595a16fc5f444412ac1844b2d480d58e/FLAG5caf1d516 [2020-10-21 23:38:28,011 INFO L306 CDTParser]: Found 1 translation units. [2020-10-21 23:38:28,012 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread/queue_ok_longest.i [2020-10-21 23:38:28,035 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/12d106908/595a16fc5f444412ac1844b2d480d58e/FLAG5caf1d516 [2020-10-21 23:38:28,201 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/12d106908/595a16fc5f444412ac1844b2d480d58e [2020-10-21 23:38:28,210 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-21 23:38:28,217 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2020-10-21 23:38:28,218 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-21 23:38:28,218 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-21 23:38:28,221 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-21 23:38:28,222 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.10 11:38:28" (1/1) ... [2020-10-21 23:38:28,225 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7a1984e5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 11:38:28, skipping insertion in model container [2020-10-21 23:38:28,225 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.10 11:38:28" (1/1) ... [2020-10-21 23:38:28,233 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-21 23:38:28,289 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-21 23:38:28,841 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-21 23:38:28,858 INFO L203 MainTranslator]: Completed pre-run [2020-10-21 23:38:28,954 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-21 23:38:29,111 INFO L208 MainTranslator]: Completed translation [2020-10-21 23:38:29,113 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 11:38:29 WrapperNode [2020-10-21 23:38:29,113 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-21 23:38:29,114 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-10-21 23:38:29,114 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-10-21 23:38:29,114 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-10-21 23:38:29,123 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 11:38:29" (1/1) ... [2020-10-21 23:38:29,166 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 11:38:29" (1/1) ... [2020-10-21 23:38:29,230 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-10-21 23:38:29,231 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-21 23:38:29,231 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-21 23:38:29,232 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-21 23:38:29,248 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 11:38:29" (1/1) ... [2020-10-21 23:38:29,248 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 11:38:29" (1/1) ... [2020-10-21 23:38:29,267 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 11:38:29" (1/1) ... [2020-10-21 23:38:29,268 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 11:38:29" (1/1) ... [2020-10-21 23:38:29,292 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 11:38:29" (1/1) ... [2020-10-21 23:38:29,301 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 11:38:29" (1/1) ... [2020-10-21 23:38:29,310 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 11:38:29" (1/1) ... [2020-10-21 23:38:29,325 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-21 23:38:29,325 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-21 23:38:29,326 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-21 23:38:29,326 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-21 23:38:29,327 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 11:38:29" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-21 23:38:29,440 INFO L130 BoogieDeclarations]: Found specification of procedure t1 [2020-10-21 23:38:29,441 INFO L138 BoogieDeclarations]: Found implementation of procedure t1 [2020-10-21 23:38:29,441 INFO L130 BoogieDeclarations]: Found specification of procedure t2 [2020-10-21 23:38:29,442 INFO L138 BoogieDeclarations]: Found implementation of procedure t2 [2020-10-21 23:38:29,442 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-21 23:38:29,443 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-21 23:38:29,444 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-21 23:38:29,444 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-21 23:38:29,446 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2020-10-21 23:38:29,446 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-21 23:38:29,446 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-21 23:38:29,447 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-21 23:38:29,449 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2020-10-21 23:38:30,245 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-21 23:38:30,245 INFO L298 CfgBuilder]: Removed 20 assume(true) statements. [2020-10-21 23:38:30,247 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.10 11:38:30 BoogieIcfgContainer [2020-10-21 23:38:30,247 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-21 23:38:30,248 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-21 23:38:30,249 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-21 23:38:30,252 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-21 23:38:30,252 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.10 11:38:28" (1/3) ... [2020-10-21 23:38:30,253 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5707ac4f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.10 11:38:30, skipping insertion in model container [2020-10-21 23:38:30,253 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 11:38:29" (2/3) ... [2020-10-21 23:38:30,254 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5707ac4f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.10 11:38:30, skipping insertion in model container [2020-10-21 23:38:30,254 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.10 11:38:30" (3/3) ... [2020-10-21 23:38:30,256 INFO L111 eAbstractionObserver]: Analyzing ICFG queue_ok_longest.i [2020-10-21 23:38:30,267 WARN L153 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2020-10-21 23:38:30,267 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-21 23:38:30,275 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 2 error locations. [2020-10-21 23:38:30,275 INFO L348 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2020-10-21 23:38:30,312 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:38:30,313 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:38:30,313 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:38:30,313 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:38:30,313 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork1_~value~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:38:30,314 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork1_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:38:30,314 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork1_#t~nondet53| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:38:30,314 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork1_#t~nondet53| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:38:30,314 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork1_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:38:30,315 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork1_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:38:30,315 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork1_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:38:30,315 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:38:30,315 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:38:30,315 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork1_#t~nondet55| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:38:30,316 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork1_#t~nondet55| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:38:30,316 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork1_~value~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:38:30,316 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork1_#t~nondet55| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:38:30,316 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork1_~value~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:38:30,316 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork1_enqueue_#in~q.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:38:30,316 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork1_enqueue_#in~q.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:38:30,317 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork1_enqueue_#in~x| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:38:30,317 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork1_enqueue_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:38:30,317 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork1_enqueue_~x not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:38:30,317 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork1_enqueue_#t~mem40| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:38:30,317 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork1_enqueue_#t~post45| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:38:30,318 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork1_enqueue_#t~mem41| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:38:30,318 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork1_enqueue_#t~mem43| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:38:30,318 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork1_enqueue_~q.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:38:30,318 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork1_enqueue_#t~mem44| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:38:30,318 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork1_enqueue_#t~post42| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:38:30,318 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork1_enqueue_~q.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:38:30,319 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork1_enqueue_#in~q.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:38:30,319 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork1_enqueue_#in~q.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:38:30,319 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork1_enqueue_~q.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:38:30,319 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork1_enqueue_~q.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:38:30,319 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork1_enqueue_#in~x| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:38:30,320 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork1_enqueue_~x not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:38:30,320 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork1_enqueue_~q.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:38:30,320 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork1_enqueue_~q.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:38:30,320 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork1_enqueue_#t~mem40| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:38:30,320 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork1_enqueue_#t~mem40| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:38:30,321 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork1_enqueue_~x not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:38:30,321 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork1_enqueue_~q.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:38:30,321 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork1_enqueue_~q.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:38:30,321 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork1_enqueue_#t~mem40| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:38:30,321 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork1_enqueue_~q.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:38:30,321 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork1_enqueue_~q.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:38:30,322 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork1_enqueue_#t~mem41| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:38:30,322 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork1_enqueue_#t~mem41| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:38:30,322 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork1_enqueue_#t~post42| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:38:30,322 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork1_enqueue_~q.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:38:30,322 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork1_enqueue_#t~post42| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:38:30,323 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork1_enqueue_~q.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:38:30,323 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork1_enqueue_#t~mem41| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:38:30,323 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork1_enqueue_#t~post42| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:38:30,323 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork1_enqueue_~q.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:38:30,323 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork1_enqueue_~q.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:38:30,323 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork1_enqueue_#t~mem43| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:38:30,324 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork1_enqueue_#t~mem43| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:38:30,324 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork1_enqueue_#t~mem43| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:38:30,324 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork1_enqueue_#t~mem43| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:38:30,324 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork1_enqueue_#t~mem43| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:38:30,324 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork1_enqueue_~q.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:38:30,325 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork1_enqueue_~q.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:38:30,325 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork1_enqueue_~q.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:38:30,325 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork1_enqueue_~q.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:38:30,325 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork1_enqueue_#t~mem44| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:38:30,325 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork1_enqueue_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:38:30,326 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork1_enqueue_#t~mem44| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:38:30,326 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork1_enqueue_#t~post45| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:38:30,326 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork1_enqueue_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:38:30,326 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork1_#t~ret56| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:38:30,326 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork1_enqueue_#t~post45| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:38:30,326 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork1_enqueue_~q.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:38:30,327 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork1_enqueue_~q.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:38:30,327 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork1_#t~ret56| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:38:30,327 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork1_enqueue_#t~mem44| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:38:30,327 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork1_#t~ret56| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:38:30,328 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork1_enqueue_#t~post45| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:38:30,328 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork1_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:38:30,328 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork1_~value~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:38:30,328 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork1_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:38:30,328 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork1_#t~post54| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:38:30,329 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork1_#t~post54| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:38:30,329 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork1_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:38:30,329 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork1_#t~post54| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:38:30,330 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:38:30,331 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:38:30,331 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:38:30,331 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:38:30,331 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork0_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:38:30,331 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork0_#t~nondet57| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:38:30,332 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork0_#t~nondet57| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:38:30,332 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork0_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:38:30,332 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork0_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:38:30,332 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork0_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:38:30,332 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:38:30,333 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:38:30,335 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork0_empty_#in~q.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:38:30,335 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork0_empty_#in~q.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:38:30,335 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork0_empty_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:38:30,336 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork0_empty_#t~nondet35| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:38:30,336 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork0_empty_#t~mem33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:38:30,336 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork0_empty_#t~mem34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:38:30,336 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork0_empty_~q.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:38:30,336 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork0_empty_~q.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:38:30,337 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork0_empty_#in~q.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:38:30,337 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork0_empty_#in~q.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:38:30,339 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork0_empty_~q.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:38:30,339 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork0_empty_~q.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:38:30,339 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork0_empty_~q.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:38:30,339 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork0_empty_~q.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:38:30,340 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork0_empty_#t~mem33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:38:30,340 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork0_empty_~q.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:38:30,340 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork0_empty_~q.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:38:30,340 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork0_empty_#t~mem34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:38:30,340 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork0_empty_#t~mem33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:38:30,340 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork0_empty_#t~mem34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:38:30,341 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork0_empty_#t~mem33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:38:30,341 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork0_empty_#t~mem34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:38:30,341 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork0_empty_#t~mem33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:38:30,341 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork0_empty_#t~mem33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:38:30,341 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork0_empty_#t~mem34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:38:30,342 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork0_empty_#t~mem34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:38:30,342 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork0_empty_#t~nondet35| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:38:30,342 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork0_empty_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:38:30,342 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork0_empty_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:38:30,342 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork0_empty_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:38:30,342 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork0_#t~ret59| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:38:30,343 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork0_#t~ret59| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:38:30,343 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork0_#t~ret59| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:38:30,343 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork0_#t~ret59| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:38:30,343 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork0_#t~ret59| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:38:30,343 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork0_#t~ret59| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:38:30,344 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork0_dequeue_#in~q.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:38:30,344 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork0_dequeue_#in~q.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:38:30,344 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork0_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:38:30,344 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork0_#t~post58| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:38:30,344 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork0_dequeue_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:38:30,344 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork0_#t~post58| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:38:30,345 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork0_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:38:30,345 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork0_dequeue_~x~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:38:30,345 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork0_dequeue_~q.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:38:30,345 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork0_dequeue_#t~post49| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:38:30,345 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork0_dequeue_~q.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:38:30,346 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork0_dequeue_#t~mem51| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:38:30,346 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork0_dequeue_#t~mem50| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:38:30,346 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork0_dequeue_#t~post52| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:38:30,346 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork0_dequeue_#t~mem46| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:38:30,346 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork0_dequeue_#t~mem48| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:38:30,346 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork0_dequeue_#t~mem47| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:38:30,346 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork0_#t~post58| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:38:30,347 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork0_dequeue_#in~q.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:38:30,347 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork0_dequeue_#in~q.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:38:30,347 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork0_dequeue_~q.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:38:30,347 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork0_dequeue_~q.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:38:30,347 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork0_dequeue_~x~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:38:30,348 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork0_dequeue_~q.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:38:30,348 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork0_dequeue_~q.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:38:30,348 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork0_dequeue_#t~mem46| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:38:30,348 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork0_dequeue_~q.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:38:30,348 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork0_dequeue_~q.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:38:30,348 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork0_dequeue_#t~mem46| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:38:30,349 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork0_dequeue_#t~mem47| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:38:30,349 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork0_dequeue_#t~mem47| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:38:30,349 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork0_dequeue_~x~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:38:30,349 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork0_dequeue_#t~mem47| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:38:30,349 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork0_dequeue_#t~mem46| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:38:30,349 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork0_dequeue_~q.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:38:30,350 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork0_dequeue_~q.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:38:30,350 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork0_dequeue_#t~mem48| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:38:30,350 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork0_dequeue_#t~mem48| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:38:30,350 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork0_dequeue_#t~post49| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:38:30,350 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork0_dequeue_~q.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:38:30,350 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork0_dequeue_#t~post49| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:38:30,351 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork0_dequeue_~q.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:38:30,351 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork0_dequeue_#t~mem48| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:38:30,351 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork0_dequeue_#t~post49| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:38:30,351 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork0_dequeue_~q.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:38:30,351 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork0_dequeue_~q.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:38:30,352 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork0_dequeue_#t~mem50| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:38:30,352 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork0_dequeue_#t~mem50| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:38:30,352 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork0_dequeue_#t~mem50| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:38:30,352 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork0_dequeue_#t~mem50| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:38:30,352 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork0_dequeue_#t~mem50| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:38:30,353 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork0_dequeue_~q.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:38:30,353 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork0_dequeue_~q.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:38:30,353 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork0_dequeue_~q.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:38:30,353 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork0_dequeue_~q.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:38:30,353 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork0_dequeue_#t~mem51| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:38:30,354 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork0_dequeue_~x~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:38:30,354 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork0_dequeue_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:38:30,354 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork0_dequeue_#t~mem51| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:38:30,354 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork0_dequeue_#t~post52| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:38:30,354 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork0_dequeue_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:38:30,355 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork0_#t~ret60| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:38:30,355 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork0_dequeue_~q.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:38:30,355 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork0_dequeue_#t~post52| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:38:30,355 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork0_dequeue_~q.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:38:30,355 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork0_#t~ret60| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:38:30,355 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork0_dequeue_#t~mem51| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:38:30,356 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork0_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:38:30,356 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork0_#t~mem61| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:38:30,356 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork0_dequeue_#t~post52| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:38:30,356 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork0_#t~mem61| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:38:30,356 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork0_#t~ret60| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:38:30,357 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork0_#t~mem61| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:38:30,357 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork0_#t~ret60| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:38:30,357 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork0_#t~mem61| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:38:30,357 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork0_#t~mem61| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:38:30,357 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork0_#t~ret60| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:38:30,358 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork0_#t~ret60| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:38:30,358 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork0_reach_error_#t~nondet2.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:38:30,358 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork0_reach_error_#t~nondet2.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:38:30,358 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork0_reach_error_#t~nondet2.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:38:30,359 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork0_reach_error_#t~nondet2.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:38:30,362 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork0_reach_error_#t~nondet2.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:38:30,362 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork0_#t~nondet57| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:38:30,363 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork0_#t~ret59| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:38:30,363 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:38:30,363 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:38:30,363 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork0_dequeue_#t~mem51| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:38:30,363 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork0_dequeue_#t~mem50| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:38:30,363 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork0_dequeue_#t~post52| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:38:30,364 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork0_reach_error_#t~nondet2.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:38:30,364 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork0_empty_~q.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:38:30,364 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork0_dequeue_#t~post49| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:38:30,364 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork0_empty_#t~mem34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:38:30,364 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork0_empty_#t~mem33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:38:30,365 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork0_empty_~q.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:38:30,365 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork0_#t~mem61| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:38:30,365 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork0_dequeue_#in~q.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:38:30,365 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork0_dequeue_~q.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:38:30,365 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork0_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:38:30,366 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork0_dequeue_#t~mem48| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:38:30,366 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork0_dequeue_#t~mem47| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:38:30,366 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork0_dequeue_#t~mem46| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:38:30,366 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork0_empty_#in~q.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:38:30,366 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork0_empty_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:38:30,366 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork0_dequeue_~q.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:38:30,367 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork0_empty_#in~q.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:38:30,367 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork0_#t~ret60| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:38:30,367 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork0_dequeue_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:38:30,367 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork0_#t~post58| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:38:30,367 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork0_empty_#t~nondet35| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:38:30,368 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork0_dequeue_~x~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:38:30,368 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:38:30,368 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork0_dequeue_#in~q.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:38:30,368 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:38:30,374 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork1_enqueue_#t~post45| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:38:30,374 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork1_enqueue_#t~mem40| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:38:30,374 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork1_enqueue_~q.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:38:30,374 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork1_enqueue_#t~post42| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:38:30,375 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork1_enqueue_#t~mem44| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:38:30,375 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork1_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:38:30,375 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork1_enqueue_#in~q.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:38:30,375 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork1_#t~ret56| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:38:30,375 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork1_enqueue_#t~mem43| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:38:30,376 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork1_enqueue_#t~mem41| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:38:30,376 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork1_enqueue_#in~x| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:38:30,376 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:38:30,376 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:38:30,376 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork1_~value~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:38:30,377 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork1_enqueue_~x not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:38:30,377 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork1_#t~post54| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:38:30,377 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork1_enqueue_~q.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:38:30,377 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:38:30,377 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:38:30,377 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork1_enqueue_#in~q.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:38:30,378 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork1_#t~nondet53| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:38:30,378 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork1_enqueue_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:38:30,378 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork1_#t~nondet55| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:38:30,386 INFO L149 ThreadInstanceAdder]: Constructed 4 joinOtherThreadTransitions. [2020-10-21 23:38:30,400 INFO L253 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2020-10-21 23:38:30,419 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-21 23:38:30,420 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-21 23:38:30,420 INFO L379 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-21 23:38:30,420 INFO L380 AbstractCegarLoop]: Backedges is MCR [2020-10-21 23:38:30,420 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-21 23:38:30,420 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-21 23:38:30,420 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-21 23:38:30,420 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-21 23:38:30,437 INFO L137 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2020-10-21 23:38:30,438 INFO L144 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 208 places, 218 transitions, 458 flow [2020-10-21 23:38:30,440 INFO L110 LiptonReduction]: Starting Lipton reduction on Petri net that has 208 places, 218 transitions, 458 flow [2020-10-21 23:38:30,442 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 208 places, 218 transitions, 458 flow [2020-10-21 23:38:30,523 INFO L129 PetriNetUnfolder]: 16/218 cut-off events. [2020-10-21 23:38:30,523 INFO L130 PetriNetUnfolder]: For 4/4 co-relation queries the response was YES. [2020-10-21 23:38:30,532 INFO L80 FinitePrefix]: Finished finitePrefix Result has 229 conditions, 218 events. 16/218 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 382 event pairs, 0 based on Foata normal form. 0/201 useless extension candidates. Maximal degree in co-relation 144. Up to 3 conditions per place. [2020-10-21 23:38:30,541 INFO L116 LiptonReduction]: Number of co-enabled transitions 10000 [2020-10-21 23:38:33,253 WARN L193 SmtUtils]: Spent 136.00 ms on a formula simplification that was a NOOP. DAG size: 96 [2020-10-21 23:38:33,388 WARN L193 SmtUtils]: Spent 130.00 ms on a formula simplification that was a NOOP. DAG size: 92 [2020-10-21 23:38:33,866 WARN L193 SmtUtils]: Spent 123.00 ms on a formula simplification that was a NOOP. DAG size: 82 [2020-10-21 23:38:34,440 WARN L193 SmtUtils]: Spent 479.00 ms on a formula simplification. DAG size of input: 118 DAG size of output: 108 [2020-10-21 23:38:34,646 WARN L193 SmtUtils]: Spent 202.00 ms on a formula simplification that was a NOOP. DAG size: 104 [2020-10-21 23:38:36,530 WARN L193 SmtUtils]: Spent 1.80 s on a formula simplification. DAG size of input: 172 DAG size of output: 166 [2020-10-21 23:38:37,180 WARN L193 SmtUtils]: Spent 637.00 ms on a formula simplification that was a NOOP. DAG size: 156 [2020-10-21 23:38:38,440 WARN L193 SmtUtils]: Spent 1.24 s on a formula simplification. DAG size of input: 167 DAG size of output: 161 [2020-10-21 23:38:39,050 WARN L193 SmtUtils]: Spent 607.00 ms on a formula simplification that was a NOOP. DAG size: 161 [2020-10-21 23:38:41,629 WARN L193 SmtUtils]: Spent 2.54 s on a formula simplification. DAG size of input: 183 DAG size of output: 178 [2020-10-21 23:38:42,755 WARN L193 SmtUtils]: Spent 1.12 s on a formula simplification that was a NOOP. DAG size: 174 [2020-10-21 23:38:42,781 INFO L131 LiptonReduction]: Checked pairs total: 25000 [2020-10-21 23:38:42,781 INFO L133 LiptonReduction]: Total number of compositions: 203 [2020-10-21 23:38:42,787 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 53 places, 55 transitions, 132 flow [2020-10-21 23:38:42,828 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 716 states. [2020-10-21 23:38:42,830 INFO L276 IsEmpty]: Start isEmpty. Operand 716 states. [2020-10-21 23:38:42,834 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 2 [2020-10-21 23:38:42,835 INFO L414 BasicCegarLoop]: Found error trace [2020-10-21 23:38:42,835 INFO L422 BasicCegarLoop]: trace histogram [1] [2020-10-21 23:38:42,836 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-21 23:38:42,841 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-21 23:38:42,841 INFO L82 PathProgramCache]: Analyzing trace with hash 870, now seen corresponding path program 1 times [2020-10-21 23:38:42,871 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-21 23:38:42,872 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1460164136] [2020-10-21 23:38:42,872 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-21 23:38:42,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-21 23:38:42,981 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-21 23:38:42,981 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1460164136] [2020-10-21 23:38:42,982 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-21 23:38:42,982 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [0] imperfect sequences [] total 0 [2020-10-21 23:38:42,983 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [449396871] [2020-10-21 23:38:42,984 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-21 23:38:42,986 INFO L249 McrAutomatonBuilder]: Started intersection. [2020-10-21 23:38:42,994 INFO L252 McrAutomatonBuilder]: Finished intersection with 2 states and 1 transitions. [2020-10-21 23:38:42,994 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-21 23:38:42,997 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-10-21 23:38:42,998 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-10-21 23:38:42,998 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-21 23:38:43,012 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-10-21 23:38:43,013 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-10-21 23:38:43,015 INFO L87 Difference]: Start difference. First operand 716 states. Second operand 2 states. [2020-10-21 23:38:43,055 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-21 23:38:43,055 INFO L93 Difference]: Finished difference Result 715 states and 1901 transitions. [2020-10-21 23:38:43,055 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-10-21 23:38:43,056 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 1 [2020-10-21 23:38:43,057 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-21 23:38:43,076 INFO L225 Difference]: With dead ends: 715 [2020-10-21 23:38:43,076 INFO L226 Difference]: Without dead ends: 524 [2020-10-21 23:38:43,078 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 0 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-10-21 23:38:43,102 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 524 states. [2020-10-21 23:38:43,165 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 524 to 524. [2020-10-21 23:38:43,167 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 524 states. [2020-10-21 23:38:43,173 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 524 states to 524 states and 1400 transitions. [2020-10-21 23:38:43,174 INFO L78 Accepts]: Start accepts. Automaton has 524 states and 1400 transitions. Word has length 1 [2020-10-21 23:38:43,175 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-21 23:38:43,175 INFO L481 AbstractCegarLoop]: Abstraction has 524 states and 1400 transitions. [2020-10-21 23:38:43,175 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-10-21 23:38:43,175 INFO L276 IsEmpty]: Start isEmpty. Operand 524 states and 1400 transitions. [2020-10-21 23:38:43,179 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2020-10-21 23:38:43,179 INFO L414 BasicCegarLoop]: Found error trace [2020-10-21 23:38:43,179 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-21 23:38:43,180 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-21 23:38:43,180 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-21 23:38:43,180 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-21 23:38:43,180 INFO L82 PathProgramCache]: Analyzing trace with hash 135778570, now seen corresponding path program 1 times [2020-10-21 23:38:43,185 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-21 23:38:43,185 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1841113394] [2020-10-21 23:38:43,185 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-21 23:38:43,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-21 23:38:43,375 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-21 23:38:43,375 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1841113394] [2020-10-21 23:38:43,375 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-21 23:38:43,376 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-21 23:38:43,376 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1208733026] [2020-10-21 23:38:43,376 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-21 23:38:43,380 INFO L249 McrAutomatonBuilder]: Started intersection. [2020-10-21 23:38:43,386 INFO L252 McrAutomatonBuilder]: Finished intersection with 16 states and 15 transitions. [2020-10-21 23:38:43,387 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-21 23:38:43,387 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-10-21 23:38:43,388 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-21 23:38:43,389 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-21 23:38:43,389 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-21 23:38:43,389 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-21 23:38:43,389 INFO L87 Difference]: Start difference. First operand 524 states and 1400 transitions. Second operand 3 states. [2020-10-21 23:38:43,401 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-21 23:38:43,402 INFO L93 Difference]: Finished difference Result 236 states and 509 transitions. [2020-10-21 23:38:43,402 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-21 23:38:43,402 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 15 [2020-10-21 23:38:43,403 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-21 23:38:43,404 INFO L225 Difference]: With dead ends: 236 [2020-10-21 23:38:43,405 INFO L226 Difference]: Without dead ends: 212 [2020-10-21 23:38:43,405 INFO L677 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 [2020-10-21 23:38:43,407 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 212 states. [2020-10-21 23:38:43,417 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 212 to 212. [2020-10-21 23:38:43,417 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 212 states. [2020-10-21 23:38:43,418 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 212 states to 212 states and 464 transitions. [2020-10-21 23:38:43,419 INFO L78 Accepts]: Start accepts. Automaton has 212 states and 464 transitions. Word has length 15 [2020-10-21 23:38:43,419 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-21 23:38:43,419 INFO L481 AbstractCegarLoop]: Abstraction has 212 states and 464 transitions. [2020-10-21 23:38:43,419 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-21 23:38:43,419 INFO L276 IsEmpty]: Start isEmpty. Operand 212 states and 464 transitions. [2020-10-21 23:38:43,421 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2020-10-21 23:38:43,421 INFO L414 BasicCegarLoop]: Found error trace [2020-10-21 23:38:43,422 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-21 23:38:43,422 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-21 23:38:43,422 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-21 23:38:43,422 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-21 23:38:43,422 INFO L82 PathProgramCache]: Analyzing trace with hash -487135186, now seen corresponding path program 1 times [2020-10-21 23:38:43,427 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-21 23:38:43,427 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [244540981] [2020-10-21 23:38:43,427 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-21 23:38:43,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-21 23:38:43,497 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-21 23:38:43,497 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [244540981] [2020-10-21 23:38:43,498 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-21 23:38:43,498 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-21 23:38:43,498 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1269191248] [2020-10-21 23:38:43,498 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-21 23:38:43,505 INFO L249 McrAutomatonBuilder]: Started intersection. [2020-10-21 23:38:43,512 INFO L252 McrAutomatonBuilder]: Finished intersection with 31 states and 41 transitions. [2020-10-21 23:38:43,513 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-21 23:38:43,672 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 1 new interpolants: [4074#(not (= (select (select |#pthreadsMutex| |~#m~0.base|) |~#m~0.offset|) 0))] [2020-10-21 23:38:43,673 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-21 23:38:43,674 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-21 23:38:43,675 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-21 23:38:43,675 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-10-21 23:38:43,675 INFO L87 Difference]: Start difference. First operand 212 states and 464 transitions. Second operand 4 states. [2020-10-21 23:38:43,708 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-21 23:38:43,709 INFO L93 Difference]: Finished difference Result 162 states and 327 transitions. [2020-10-21 23:38:43,711 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-21 23:38:43,711 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 19 [2020-10-21 23:38:43,711 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-21 23:38:43,713 INFO L225 Difference]: With dead ends: 162 [2020-10-21 23:38:43,713 INFO L226 Difference]: Without dead ends: 160 [2020-10-21 23:38:43,715 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-10-21 23:38:43,717 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 160 states. [2020-10-21 23:38:43,730 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 160 to 160. [2020-10-21 23:38:43,730 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 160 states. [2020-10-21 23:38:43,731 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 160 states to 160 states and 324 transitions. [2020-10-21 23:38:43,731 INFO L78 Accepts]: Start accepts. Automaton has 160 states and 324 transitions. Word has length 19 [2020-10-21 23:38:43,734 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-21 23:38:43,734 INFO L481 AbstractCegarLoop]: Abstraction has 160 states and 324 transitions. [2020-10-21 23:38:43,734 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-21 23:38:43,734 INFO L276 IsEmpty]: Start isEmpty. Operand 160 states and 324 transitions. [2020-10-21 23:38:43,736 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2020-10-21 23:38:43,736 INFO L414 BasicCegarLoop]: Found error trace [2020-10-21 23:38:43,736 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] [2020-10-21 23:38:43,736 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-21 23:38:43,736 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-21 23:38:43,737 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-21 23:38:43,737 INFO L82 PathProgramCache]: Analyzing trace with hash -2076929182, now seen corresponding path program 1 times [2020-10-21 23:38:43,747 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-21 23:38:43,747 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1393887350] [2020-10-21 23:38:43,747 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-21 23:38:43,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-21 23:38:43,854 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-21 23:38:43,854 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1393887350] [2020-10-21 23:38:43,855 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-21 23:38:43,855 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-21 23:38:43,855 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [288234617] [2020-10-21 23:38:43,855 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-21 23:38:43,860 INFO L249 McrAutomatonBuilder]: Started intersection. [2020-10-21 23:38:43,867 INFO L252 McrAutomatonBuilder]: Finished intersection with 31 states and 40 transitions. [2020-10-21 23:38:43,867 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-21 23:38:43,904 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-10-21 23:38:43,904 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-21 23:38:43,904 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-21 23:38:43,904 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-21 23:38:43,905 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-21 23:38:43,905 INFO L87 Difference]: Start difference. First operand 160 states and 324 transitions. Second operand 3 states. [2020-10-21 23:38:43,926 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-21 23:38:43,927 INFO L93 Difference]: Finished difference Result 200 states and 398 transitions. [2020-10-21 23:38:43,929 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-21 23:38:43,929 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 20 [2020-10-21 23:38:43,929 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-21 23:38:43,931 INFO L225 Difference]: With dead ends: 200 [2020-10-21 23:38:43,931 INFO L226 Difference]: Without dead ends: 200 [2020-10-21 23:38:43,931 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-21 23:38:43,933 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 200 states. [2020-10-21 23:38:43,944 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 200 to 164. [2020-10-21 23:38:43,944 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 164 states. [2020-10-21 23:38:43,945 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 164 states to 164 states and 331 transitions. [2020-10-21 23:38:43,945 INFO L78 Accepts]: Start accepts. Automaton has 164 states and 331 transitions. Word has length 20 [2020-10-21 23:38:43,946 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-21 23:38:43,946 INFO L481 AbstractCegarLoop]: Abstraction has 164 states and 331 transitions. [2020-10-21 23:38:43,946 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-21 23:38:43,946 INFO L276 IsEmpty]: Start isEmpty. Operand 164 states and 331 transitions. [2020-10-21 23:38:43,947 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2020-10-21 23:38:43,948 INFO L414 BasicCegarLoop]: Found error trace [2020-10-21 23:38:43,948 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, 1, 1, 1, 1, 1] [2020-10-21 23:38:43,948 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-21 23:38:43,948 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-21 23:38:43,948 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-21 23:38:43,949 INFO L82 PathProgramCache]: Analyzing trace with hash -1915648921, now seen corresponding path program 1 times [2020-10-21 23:38:43,950 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-21 23:38:43,950 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1333823081] [2020-10-21 23:38:43,950 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-21 23:38:43,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-21 23:38:44,021 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-21 23:38:44,022 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1333823081] [2020-10-21 23:38:44,022 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1309552312] [2020-10-21 23:38:44,022 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-21 23:38:44,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-21 23:38:44,131 INFO L263 TraceCheckSpWp]: Trace formula consists of 216 conjuncts, 3 conjunts are in the unsatisfiable core [2020-10-21 23:38:44,137 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-21 23:38:44,164 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-21 23:38:44,164 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-10-21 23:38:44,164 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 5 [2020-10-21 23:38:44,165 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [70103331] [2020-10-21 23:38:44,165 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-21 23:38:44,171 INFO L249 McrAutomatonBuilder]: Started intersection. [2020-10-21 23:38:44,185 INFO L252 McrAutomatonBuilder]: Finished intersection with 42 states and 55 transitions. [2020-10-21 23:38:44,186 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-21 23:38:44,310 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-10-21 23:38:44,310 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-21 23:38:44,310 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-21 23:38:44,311 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-21 23:38:44,311 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2020-10-21 23:38:44,311 INFO L87 Difference]: Start difference. First operand 164 states and 331 transitions. Second operand 4 states. [2020-10-21 23:38:44,338 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-21 23:38:44,339 INFO L93 Difference]: Finished difference Result 240 states and 472 transitions. [2020-10-21 23:38:44,339 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-21 23:38:44,339 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 27 [2020-10-21 23:38:44,340 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-21 23:38:44,341 INFO L225 Difference]: With dead ends: 240 [2020-10-21 23:38:44,341 INFO L226 Difference]: Without dead ends: 240 [2020-10-21 23:38:44,342 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 41 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2020-10-21 23:38:44,343 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 240 states. [2020-10-21 23:38:44,348 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 240 to 204. [2020-10-21 23:38:44,348 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 204 states. [2020-10-21 23:38:44,349 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 204 states to 204 states and 405 transitions. [2020-10-21 23:38:44,349 INFO L78 Accepts]: Start accepts. Automaton has 204 states and 405 transitions. Word has length 27 [2020-10-21 23:38:44,349 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-21 23:38:44,350 INFO L481 AbstractCegarLoop]: Abstraction has 204 states and 405 transitions. [2020-10-21 23:38:44,350 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-21 23:38:44,350 INFO L276 IsEmpty]: Start isEmpty. Operand 204 states and 405 transitions. [2020-10-21 23:38:44,351 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2020-10-21 23:38:44,351 INFO L414 BasicCegarLoop]: Found error trace [2020-10-21 23:38:44,351 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-21 23:38:44,564 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,2 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-21 23:38:44,565 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-21 23:38:44,565 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-21 23:38:44,565 INFO L82 PathProgramCache]: Analyzing trace with hash -1084664894, now seen corresponding path program 2 times [2020-10-21 23:38:44,567 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-21 23:38:44,568 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [98084366] [2020-10-21 23:38:44,568 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-21 23:38:44,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-21 23:38:44,641 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-21 23:38:44,641 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [98084366] [2020-10-21 23:38:44,641 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1739674268] [2020-10-21 23:38:44,642 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-21 23:38:44,822 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2020-10-21 23:38:44,822 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-10-21 23:38:44,824 INFO L263 TraceCheckSpWp]: Trace formula consists of 251 conjuncts, 4 conjunts are in the unsatisfiable core [2020-10-21 23:38:44,826 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-21 23:38:44,852 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-21 23:38:44,852 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-10-21 23:38:44,853 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 6 [2020-10-21 23:38:44,853 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [218630843] [2020-10-21 23:38:44,854 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-21 23:38:44,863 INFO L249 McrAutomatonBuilder]: Started intersection. [2020-10-21 23:38:44,885 INFO L252 McrAutomatonBuilder]: Finished intersection with 56 states and 76 transitions. [2020-10-21 23:38:44,885 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-21 23:38:45,139 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-10-21 23:38:45,139 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-21 23:38:45,140 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-21 23:38:45,140 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-21 23:38:45,140 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2020-10-21 23:38:45,140 INFO L87 Difference]: Start difference. First operand 204 states and 405 transitions. Second operand 5 states. [2020-10-21 23:38:45,179 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-21 23:38:45,179 INFO L93 Difference]: Finished difference Result 280 states and 546 transitions. [2020-10-21 23:38:45,179 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-21 23:38:45,180 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 34 [2020-10-21 23:38:45,180 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-21 23:38:45,182 INFO L225 Difference]: With dead ends: 280 [2020-10-21 23:38:45,182 INFO L226 Difference]: Without dead ends: 280 [2020-10-21 23:38:45,182 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 55 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2020-10-21 23:38:45,183 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 280 states. [2020-10-21 23:38:45,189 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 280 to 244. [2020-10-21 23:38:45,189 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 244 states. [2020-10-21 23:38:45,190 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 244 states to 244 states and 479 transitions. [2020-10-21 23:38:45,190 INFO L78 Accepts]: Start accepts. Automaton has 244 states and 479 transitions. Word has length 34 [2020-10-21 23:38:45,191 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-21 23:38:45,191 INFO L481 AbstractCegarLoop]: Abstraction has 244 states and 479 transitions. [2020-10-21 23:38:45,191 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-21 23:38:45,191 INFO L276 IsEmpty]: Start isEmpty. Operand 244 states and 479 transitions. [2020-10-21 23:38:45,192 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2020-10-21 23:38:45,192 INFO L414 BasicCegarLoop]: Found error trace [2020-10-21 23:38:45,193 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-21 23:38:45,406 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-21 23:38:45,407 INFO L429 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-21 23:38:45,407 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-21 23:38:45,408 INFO L82 PathProgramCache]: Analyzing trace with hash 407214087, now seen corresponding path program 3 times [2020-10-21 23:38:45,410 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-21 23:38:45,410 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [650095613] [2020-10-21 23:38:45,410 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-21 23:38:45,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-21 23:38:45,494 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 24 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-21 23:38:45,494 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [650095613] [2020-10-21 23:38:45,495 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1989623225] [2020-10-21 23:38:45,495 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-21 23:38:46,144 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 4 check-sat command(s) [2020-10-21 23:38:46,145 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-10-21 23:38:46,149 INFO L263 TraceCheckSpWp]: Trace formula consists of 286 conjuncts, 5 conjunts are in the unsatisfiable core [2020-10-21 23:38:46,152 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-21 23:38:46,184 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 24 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-21 23:38:46,184 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-10-21 23:38:46,184 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 7 [2020-10-21 23:38:46,184 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [729079335] [2020-10-21 23:38:46,185 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-21 23:38:46,199 INFO L249 McrAutomatonBuilder]: Started intersection. [2020-10-21 23:38:46,234 INFO L252 McrAutomatonBuilder]: Finished intersection with 70 states and 97 transitions. [2020-10-21 23:38:46,235 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-21 23:38:46,523 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-10-21 23:38:46,523 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-21 23:38:46,523 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-21 23:38:46,523 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-21 23:38:46,524 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2020-10-21 23:38:46,524 INFO L87 Difference]: Start difference. First operand 244 states and 479 transitions. Second operand 6 states. [2020-10-21 23:38:46,573 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-21 23:38:46,573 INFO L93 Difference]: Finished difference Result 320 states and 620 transitions. [2020-10-21 23:38:46,576 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-21 23:38:46,576 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 41 [2020-10-21 23:38:46,577 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-21 23:38:46,578 INFO L225 Difference]: With dead ends: 320 [2020-10-21 23:38:46,579 INFO L226 Difference]: Without dead ends: 320 [2020-10-21 23:38:46,579 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 74 GetRequests, 69 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2020-10-21 23:38:46,580 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 320 states. [2020-10-21 23:38:46,591 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 320 to 284. [2020-10-21 23:38:46,592 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 284 states. [2020-10-21 23:38:46,594 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 284 states to 284 states and 553 transitions. [2020-10-21 23:38:46,594 INFO L78 Accepts]: Start accepts. Automaton has 284 states and 553 transitions. Word has length 41 [2020-10-21 23:38:46,595 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-21 23:38:46,595 INFO L481 AbstractCegarLoop]: Abstraction has 284 states and 553 transitions. [2020-10-21 23:38:46,595 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-21 23:38:46,595 INFO L276 IsEmpty]: Start isEmpty. Operand 284 states and 553 transitions. [2020-10-21 23:38:46,598 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2020-10-21 23:38:46,598 INFO L414 BasicCegarLoop]: Found error trace [2020-10-21 23:38:46,598 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-21 23:38:46,811 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,4 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-21 23:38:46,812 INFO L429 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-21 23:38:46,812 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-21 23:38:46,813 INFO L82 PathProgramCache]: Analyzing trace with hash -311038942, now seen corresponding path program 4 times [2020-10-21 23:38:46,815 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-21 23:38:46,815 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [487673015] [2020-10-21 23:38:46,816 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-21 23:38:46,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-21 23:38:46,969 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 0 proven. 46 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-21 23:38:46,969 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [487673015] [2020-10-21 23:38:46,969 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [903748841] [2020-10-21 23:38:46,970 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-21 23:38:47,189 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2020-10-21 23:38:47,189 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-10-21 23:38:47,190 INFO L263 TraceCheckSpWp]: Trace formula consists of 321 conjuncts, 6 conjunts are in the unsatisfiable core [2020-10-21 23:38:47,196 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-21 23:38:47,251 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 0 proven. 46 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-21 23:38:47,252 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-10-21 23:38:47,252 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 8 [2020-10-21 23:38:47,252 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [339649406] [2020-10-21 23:38:47,252 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-21 23:38:47,275 INFO L249 McrAutomatonBuilder]: Started intersection. [2020-10-21 23:38:47,331 INFO L252 McrAutomatonBuilder]: Finished intersection with 84 states and 118 transitions. [2020-10-21 23:38:47,331 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-21 23:38:47,750 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-10-21 23:38:47,751 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-21 23:38:47,751 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-21 23:38:47,752 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-21 23:38:47,752 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=28, Unknown=0, NotChecked=0, Total=56 [2020-10-21 23:38:47,752 INFO L87 Difference]: Start difference. First operand 284 states and 553 transitions. Second operand 7 states. [2020-10-21 23:38:47,807 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-21 23:38:47,808 INFO L93 Difference]: Finished difference Result 360 states and 694 transitions. [2020-10-21 23:38:47,808 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-21 23:38:47,809 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 48 [2020-10-21 23:38:47,809 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-21 23:38:47,813 INFO L225 Difference]: With dead ends: 360 [2020-10-21 23:38:47,813 INFO L226 Difference]: Without dead ends: 360 [2020-10-21 23:38:47,813 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 89 GetRequests, 83 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=28, Invalid=28, Unknown=0, NotChecked=0, Total=56 [2020-10-21 23:38:47,815 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 360 states. [2020-10-21 23:38:47,824 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 360 to 324. [2020-10-21 23:38:47,824 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 324 states. [2020-10-21 23:38:47,826 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 324 states to 324 states and 627 transitions. [2020-10-21 23:38:47,826 INFO L78 Accepts]: Start accepts. Automaton has 324 states and 627 transitions. Word has length 48 [2020-10-21 23:38:47,826 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-21 23:38:47,826 INFO L481 AbstractCegarLoop]: Abstraction has 324 states and 627 transitions. [2020-10-21 23:38:47,827 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-21 23:38:47,827 INFO L276 IsEmpty]: Start isEmpty. Operand 324 states and 627 transitions. [2020-10-21 23:38:47,828 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2020-10-21 23:38:47,829 INFO L414 BasicCegarLoop]: Found error trace [2020-10-21 23:38:47,829 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-21 23:38:48,044 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,5 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-21 23:38:48,045 INFO L429 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-21 23:38:48,046 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-21 23:38:48,046 INFO L82 PathProgramCache]: Analyzing trace with hash -1178676313, now seen corresponding path program 5 times [2020-10-21 23:38:48,048 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-21 23:38:48,048 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [655115406] [2020-10-21 23:38:48,048 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-21 23:38:48,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-21 23:38:48,145 INFO L134 CoverageAnalysis]: Checked inductivity of 75 backedges. 0 proven. 75 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-21 23:38:48,145 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [655115406] [2020-10-21 23:38:48,146 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1893179165] [2020-10-21 23:38:48,146 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-21 23:38:48,270 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 4 check-sat command(s) [2020-10-21 23:38:48,270 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-10-21 23:38:48,272 INFO L263 TraceCheckSpWp]: Trace formula consists of 142 conjuncts, 37 conjunts are in the unsatisfiable core [2020-10-21 23:38:48,275 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-21 23:38:48,321 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2020-10-21 23:38:48,322 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-10-21 23:38:48,324 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-21 23:38:48,324 INFO L545 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-10-21 23:38:48,324 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:13, output treesize:9 [2020-10-21 23:38:48,370 INFO L350 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-10-21 23:38:48,371 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 25 treesize of output 62 [2020-10-21 23:38:48,372 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-10-21 23:38:48,402 INFO L625 ElimStorePlain]: treesize reduction 24, result has 62.5 percent of original size [2020-10-21 23:38:48,405 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-21 23:38:48,418 INFO L545 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: and 2 xjuncts. [2020-10-21 23:38:48,418 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:30, output treesize:35 [2020-10-21 23:38:48,493 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-21 23:38:48,534 INFO L350 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-10-21 23:38:48,535 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 25 treesize of output 54 [2020-10-21 23:38:48,536 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-21 23:38:48,541 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-10-21 23:38:48,548 INFO L173 IndexEqualityManager]: detected equality via solver [2020-10-21 23:38:48,567 INFO L350 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-10-21 23:38:48,567 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 2 case distinctions, treesize of input 34 treesize of output 57 [2020-10-21 23:38:48,569 INFO L545 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-10-21 23:38:48,695 WARN L193 SmtUtils]: Spent 125.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 46 [2020-10-21 23:38:48,696 INFO L625 ElimStorePlain]: treesize reduction 50, result has 64.8 percent of original size [2020-10-21 23:38:48,702 INFO L545 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: and 2 xjuncts. [2020-10-21 23:38:48,702 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:96, output treesize:48 [2020-10-21 23:38:48,744 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-21 23:38:48,753 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2020-10-21 23:38:48,754 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-10-21 23:38:48,758 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-10-21 23:38:48,762 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 24 [2020-10-21 23:38:48,763 INFO L545 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-10-21 23:38:48,791 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-21 23:38:48,794 INFO L545 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 2 xjuncts. [2020-10-21 23:38:48,794 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:78, output treesize:48 [2020-10-21 23:38:48,862 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 13 [2020-10-21 23:38:48,864 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-10-21 23:38:48,873 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-21 23:38:48,874 INFO L545 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-10-21 23:38:48,874 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:47, output treesize:34 [2020-10-21 23:38:48,936 INFO L721 QuantifierPusher]: Run 10 iterations of DualJunctionQuantifierElimination maybe there is a nontermination bug. [2020-10-21 23:38:49,000 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-10-21 23:38:49,002 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 44 treesize of output 43 [2020-10-21 23:38:49,002 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-10-21 23:38:49,056 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-21 23:38:49,075 INFO L545 ElimStorePlain]: Start of recursive call 1: 6 dim-0 vars, 1 dim-2 vars, End of recursive call: 4 dim-0 vars, and 1 xjuncts. [2020-10-21 23:38:49,075 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 7 variables, input treesize:103, output treesize:64 [2020-10-21 23:38:55,305 WARN L193 SmtUtils]: Spent 2.07 s on a formula simplification that was a NOOP. DAG size: 36 [2020-10-21 23:38:57,458 WARN L193 SmtUtils]: Spent 2.09 s on a formula simplification that was a NOOP. DAG size: 38 [2020-10-21 23:38:57,504 INFO L350 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-10-21 23:38:57,505 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 34 treesize of output 57 [2020-10-21 23:38:57,506 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-10-21 23:38:57,558 INFO L625 ElimStorePlain]: treesize reduction 30, result has 72.2 percent of original size [2020-10-21 23:38:57,568 INFO L545 ElimStorePlain]: Start of recursive call 1: 6 dim-0 vars, 1 dim-2 vars, End of recursive call: 4 dim-0 vars, and 1 xjuncts. [2020-10-21 23:38:57,568 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 7 variables, input treesize:88, output treesize:64 [2020-10-21 23:38:59,700 WARN L193 SmtUtils]: Spent 2.09 s on a formula simplification that was a NOOP. DAG size: 36 [2020-10-21 23:38:59,755 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-10-21 23:38:59,756 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 24 [2020-10-21 23:38:59,757 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-10-21 23:38:59,780 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-21 23:38:59,789 INFO L545 ElimStorePlain]: Start of recursive call 1: 5 dim-0 vars, 1 dim-2 vars, End of recursive call: 4 dim-0 vars, and 1 xjuncts. [2020-10-21 23:38:59,790 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 6 variables, input treesize:79, output treesize:64 [2020-10-21 23:38:59,827 INFO L134 CoverageAnalysis]: Checked inductivity of 75 backedges. 63 proven. 8 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2020-10-21 23:38:59,827 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-10-21 23:38:59,827 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 12] total 18 [2020-10-21 23:38:59,827 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [206619859] [2020-10-21 23:38:59,828 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-21 23:38:59,850 INFO L249 McrAutomatonBuilder]: Started intersection. [2020-10-21 23:39:00,006 INFO L252 McrAutomatonBuilder]: Finished intersection with 98 states and 139 transitions. [2020-10-21 23:39:00,006 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-21 23:39:00,529 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-10-21 23:39:00,530 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-21 23:39:00,530 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-21 23:39:00,530 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-21 23:39:00,531 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=62, Invalid=242, Unknown=2, NotChecked=0, Total=306 [2020-10-21 23:39:00,531 INFO L87 Difference]: Start difference. First operand 324 states and 627 transitions. Second operand 8 states. [2020-10-21 23:39:00,596 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-21 23:39:00,597 INFO L93 Difference]: Finished difference Result 400 states and 768 transitions. [2020-10-21 23:39:00,604 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-10-21 23:39:00,604 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 55 [2020-10-21 23:39:00,605 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-21 23:39:00,607 INFO L225 Difference]: With dead ends: 400 [2020-10-21 23:39:00,607 INFO L226 Difference]: Without dead ends: 400 [2020-10-21 23:39:00,608 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 104 GetRequests, 88 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 79 ImplicationChecksByTransitivity, 10.7s TimeCoverageRelationStatistics Valid=62, Invalid=242, Unknown=2, NotChecked=0, Total=306 [2020-10-21 23:39:00,610 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 400 states. [2020-10-21 23:39:00,616 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 400 to 364. [2020-10-21 23:39:00,616 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 364 states. [2020-10-21 23:39:00,618 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 364 states to 364 states and 701 transitions. [2020-10-21 23:39:00,618 INFO L78 Accepts]: Start accepts. Automaton has 364 states and 701 transitions. Word has length 55 [2020-10-21 23:39:00,618 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-21 23:39:00,618 INFO L481 AbstractCegarLoop]: Abstraction has 364 states and 701 transitions. [2020-10-21 23:39:00,618 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-21 23:39:00,618 INFO L276 IsEmpty]: Start isEmpty. Operand 364 states and 701 transitions. [2020-10-21 23:39:00,620 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2020-10-21 23:39:00,620 INFO L414 BasicCegarLoop]: Found error trace [2020-10-21 23:39:00,620 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-21 23:39:00,834 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,6 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-21 23:39:00,835 INFO L429 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-21 23:39:00,835 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-21 23:39:00,835 INFO L82 PathProgramCache]: Analyzing trace with hash 871390338, now seen corresponding path program 6 times [2020-10-21 23:39:00,838 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-21 23:39:00,838 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [814371552] [2020-10-21 23:39:00,838 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-21 23:39:00,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-21 23:39:00,966 INFO L134 CoverageAnalysis]: Checked inductivity of 111 backedges. 0 proven. 111 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-21 23:39:00,967 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [814371552] [2020-10-21 23:39:00,967 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [54263321] [2020-10-21 23:39:00,967 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-21 23:39:01,229 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 3 check-sat command(s) [2020-10-21 23:39:01,229 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-10-21 23:39:01,231 INFO L263 TraceCheckSpWp]: Trace formula consists of 251 conjuncts, 24 conjunts are in the unsatisfiable core [2020-10-21 23:39:01,234 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-21 23:39:01,256 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 1251 treesize of output 1187 [2020-10-21 23:39:01,265 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-10-21 23:39:01,406 WARN L193 SmtUtils]: Spent 139.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 24 [2020-10-21 23:39:01,407 INFO L625 ElimStorePlain]: treesize reduction 1056, result has 2.3 percent of original size [2020-10-21 23:39:01,413 INFO L545 ElimStorePlain]: Start of recursive call 1: 5 dim-0 vars, 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2020-10-21 23:39:01,414 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 6 variables, input treesize:26, output treesize:4 [2020-10-21 23:39:01,447 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2020-10-21 23:39:01,447 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-10-21 23:39:01,453 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-21 23:39:01,454 INFO L545 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-10-21 23:39:01,454 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:18, output treesize:14 [2020-10-21 23:39:01,477 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 24 [2020-10-21 23:39:01,477 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-10-21 23:39:01,484 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-21 23:39:01,485 INFO L545 ElimStorePlain]: Start of recursive call 1: 4 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-10-21 23:39:01,485 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 5 variables, input treesize:29, output treesize:9 [2020-10-21 23:39:01,534 INFO L350 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-10-21 23:39:01,534 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 34 treesize of output 57 [2020-10-21 23:39:01,535 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-10-21 23:39:01,556 INFO L625 ElimStorePlain]: treesize reduction 30, result has 44.4 percent of original size [2020-10-21 23:39:01,558 INFO L545 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-10-21 23:39:01,558 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:34, output treesize:9 [2020-10-21 23:39:01,582 INFO L350 Elim1Store]: treesize reduction 29, result has 23.7 percent of original size [2020-10-21 23:39:01,582 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 25 treesize of output 24 [2020-10-21 23:39:01,583 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-10-21 23:39:01,588 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-21 23:39:01,589 INFO L545 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-10-21 23:39:01,589 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:25, output treesize:9 [2020-10-21 23:39:01,596 INFO L134 CoverageAnalysis]: Checked inductivity of 111 backedges. 52 proven. 5 refuted. 0 times theorem prover too weak. 54 trivial. 0 not checked. [2020-10-21 23:39:01,596 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-10-21 23:39:01,596 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 7] total 15 [2020-10-21 23:39:01,597 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1367041238] [2020-10-21 23:39:01,597 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-21 23:39:01,624 INFO L249 McrAutomatonBuilder]: Started intersection. [2020-10-21 23:39:02,120 INFO L252 McrAutomatonBuilder]: Finished intersection with 112 states and 160 transitions. [2020-10-21 23:39:02,120 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-21 23:39:02,762 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-10-21 23:39:02,763 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-21 23:39:02,763 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-21 23:39:02,763 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-21 23:39:02,763 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=52, Invalid=158, Unknown=0, NotChecked=0, Total=210 [2020-10-21 23:39:02,763 INFO L87 Difference]: Start difference. First operand 364 states and 701 transitions. Second operand 9 states. [2020-10-21 23:39:02,849 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-21 23:39:02,850 INFO L93 Difference]: Finished difference Result 440 states and 842 transitions. [2020-10-21 23:39:02,851 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-21 23:39:02,851 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 62 [2020-10-21 23:39:02,851 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-21 23:39:02,853 INFO L225 Difference]: With dead ends: 440 [2020-10-21 23:39:02,854 INFO L226 Difference]: Without dead ends: 440 [2020-10-21 23:39:02,854 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 119 GetRequests, 106 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 44 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=52, Invalid=158, Unknown=0, NotChecked=0, Total=210 [2020-10-21 23:39:02,855 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 440 states. [2020-10-21 23:39:02,861 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 440 to 404. [2020-10-21 23:39:02,862 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 404 states. [2020-10-21 23:39:02,863 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 404 states to 404 states and 775 transitions. [2020-10-21 23:39:02,863 INFO L78 Accepts]: Start accepts. Automaton has 404 states and 775 transitions. Word has length 62 [2020-10-21 23:39:02,863 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-21 23:39:02,864 INFO L481 AbstractCegarLoop]: Abstraction has 404 states and 775 transitions. [2020-10-21 23:39:02,864 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-21 23:39:02,864 INFO L276 IsEmpty]: Start isEmpty. Operand 404 states and 775 transitions. [2020-10-21 23:39:02,865 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2020-10-21 23:39:02,865 INFO L414 BasicCegarLoop]: Found error trace [2020-10-21 23:39:02,865 INFO L422 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-21 23:39:03,079 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,7 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-21 23:39:03,080 INFO L429 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-21 23:39:03,080 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-21 23:39:03,081 INFO L82 PathProgramCache]: Analyzing trace with hash -1911081145, now seen corresponding path program 7 times [2020-10-21 23:39:03,082 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-21 23:39:03,083 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [165762687] [2020-10-21 23:39:03,083 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-21 23:39:03,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-21 23:39:03,299 INFO L134 CoverageAnalysis]: Checked inductivity of 154 backedges. 0 proven. 154 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-21 23:39:03,300 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [165762687] [2020-10-21 23:39:03,300 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1673503697] [2020-10-21 23:39:03,301 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 8 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-21 23:39:03,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-21 23:39:03,453 INFO L263 TraceCheckSpWp]: Trace formula consists of 426 conjuncts, 9 conjunts are in the unsatisfiable core [2020-10-21 23:39:03,457 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-21 23:39:03,481 INFO L134 CoverageAnalysis]: Checked inductivity of 154 backedges. 0 proven. 154 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-21 23:39:03,482 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-10-21 23:39:03,482 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10] total 11 [2020-10-21 23:39:03,482 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [355020398] [2020-10-21 23:39:03,482 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-21 23:39:03,558 INFO L249 McrAutomatonBuilder]: Started intersection. [2020-10-21 23:39:04,196 INFO L252 McrAutomatonBuilder]: Finished intersection with 126 states and 181 transitions. [2020-10-21 23:39:04,197 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-21 23:39:04,867 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-10-21 23:39:04,868 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-21 23:39:04,868 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-21 23:39:04,869 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-21 23:39:04,869 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=55, Unknown=0, NotChecked=0, Total=110 [2020-10-21 23:39:04,869 INFO L87 Difference]: Start difference. First operand 404 states and 775 transitions. Second operand 10 states. [2020-10-21 23:39:04,954 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-21 23:39:04,955 INFO L93 Difference]: Finished difference Result 480 states and 916 transitions. [2020-10-21 23:39:04,955 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-21 23:39:04,955 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 69 [2020-10-21 23:39:04,956 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-21 23:39:04,959 INFO L225 Difference]: With dead ends: 480 [2020-10-21 23:39:04,959 INFO L226 Difference]: Without dead ends: 480 [2020-10-21 23:39:04,960 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 134 GetRequests, 125 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=55, Invalid=55, Unknown=0, NotChecked=0, Total=110 [2020-10-21 23:39:04,961 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 480 states. [2020-10-21 23:39:04,968 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 480 to 444. [2020-10-21 23:39:04,968 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 444 states. [2020-10-21 23:39:04,969 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 444 states to 444 states and 849 transitions. [2020-10-21 23:39:04,969 INFO L78 Accepts]: Start accepts. Automaton has 444 states and 849 transitions. Word has length 69 [2020-10-21 23:39:04,970 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-21 23:39:04,970 INFO L481 AbstractCegarLoop]: Abstraction has 444 states and 849 transitions. [2020-10-21 23:39:04,970 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-21 23:39:04,970 INFO L276 IsEmpty]: Start isEmpty. Operand 444 states and 849 transitions. [2020-10-21 23:39:04,971 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2020-10-21 23:39:04,971 INFO L414 BasicCegarLoop]: Found error trace [2020-10-21 23:39:04,971 INFO L422 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-21 23:39:05,184 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,8 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-21 23:39:05,185 INFO L429 AbstractCegarLoop]: === Iteration 12 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-21 23:39:05,185 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-21 23:39:05,186 INFO L82 PathProgramCache]: Analyzing trace with hash 1303291106, now seen corresponding path program 8 times [2020-10-21 23:39:05,188 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-21 23:39:05,188 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1676552957] [2020-10-21 23:39:05,188 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-21 23:39:05,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-21 23:39:05,346 INFO L134 CoverageAnalysis]: Checked inductivity of 204 backedges. 0 proven. 204 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-21 23:39:05,346 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1676552957] [2020-10-21 23:39:05,346 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [239470073] [2020-10-21 23:39:05,347 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 9 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 9 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-21 23:39:05,508 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2020-10-21 23:39:05,508 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-10-21 23:39:05,510 INFO L263 TraceCheckSpWp]: Trace formula consists of 461 conjuncts, 10 conjunts are in the unsatisfiable core [2020-10-21 23:39:05,512 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-21 23:39:05,536 INFO L134 CoverageAnalysis]: Checked inductivity of 204 backedges. 0 proven. 204 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-21 23:39:05,537 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-10-21 23:39:05,537 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11] total 12 [2020-10-21 23:39:05,537 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [86045586] [2020-10-21 23:39:05,537 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-21 23:39:05,565 INFO L249 McrAutomatonBuilder]: Started intersection. [2020-10-21 23:39:05,945 INFO L252 McrAutomatonBuilder]: Finished intersection with 140 states and 202 transitions. [2020-10-21 23:39:05,945 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-21 23:39:06,654 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-10-21 23:39:06,655 INFO L461 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-10-21 23:39:06,655 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-21 23:39:06,656 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-10-21 23:39:06,656 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=66, Unknown=0, NotChecked=0, Total=132 [2020-10-21 23:39:06,656 INFO L87 Difference]: Start difference. First operand 444 states and 849 transitions. Second operand 11 states. [2020-10-21 23:39:06,750 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-21 23:39:06,751 INFO L93 Difference]: Finished difference Result 520 states and 990 transitions. [2020-10-21 23:39:06,751 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-21 23:39:06,751 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 76 [2020-10-21 23:39:06,752 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-21 23:39:06,754 INFO L225 Difference]: With dead ends: 520 [2020-10-21 23:39:06,754 INFO L226 Difference]: Without dead ends: 520 [2020-10-21 23:39:06,754 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 149 GetRequests, 139 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=66, Invalid=66, Unknown=0, NotChecked=0, Total=132 [2020-10-21 23:39:06,756 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 520 states. [2020-10-21 23:39:06,763 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 520 to 484. [2020-10-21 23:39:06,763 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 484 states. [2020-10-21 23:39:06,764 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 484 states to 484 states and 923 transitions. [2020-10-21 23:39:06,765 INFO L78 Accepts]: Start accepts. Automaton has 484 states and 923 transitions. Word has length 76 [2020-10-21 23:39:06,765 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-21 23:39:06,765 INFO L481 AbstractCegarLoop]: Abstraction has 484 states and 923 transitions. [2020-10-21 23:39:06,765 INFO L482 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-10-21 23:39:06,765 INFO L276 IsEmpty]: Start isEmpty. Operand 484 states and 923 transitions. [2020-10-21 23:39:06,766 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2020-10-21 23:39:06,767 INFO L414 BasicCegarLoop]: Found error trace [2020-10-21 23:39:06,767 INFO L422 BasicCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-21 23:39:06,982 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2020-10-21 23:39:06,983 INFO L429 AbstractCegarLoop]: === Iteration 13 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-21 23:39:06,983 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-21 23:39:06,983 INFO L82 PathProgramCache]: Analyzing trace with hash -341261593, now seen corresponding path program 9 times [2020-10-21 23:39:06,985 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-21 23:39:06,986 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1625471745] [2020-10-21 23:39:06,986 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-21 23:39:07,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-21 23:39:07,137 INFO L134 CoverageAnalysis]: Checked inductivity of 261 backedges. 0 proven. 261 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-21 23:39:07,138 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1625471745] [2020-10-21 23:39:07,138 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1998570859] [2020-10-21 23:39:07,138 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 10 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 10 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-21 23:39:08,022 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 4 check-sat command(s) [2020-10-21 23:39:08,023 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-10-21 23:39:08,027 INFO L263 TraceCheckSpWp]: Trace formula consists of 286 conjuncts, 36 conjunts are in the unsatisfiable core [2020-10-21 23:39:08,029 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-21 23:39:08,040 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 1004 treesize of output 1000 [2020-10-21 23:39:08,042 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 2 xjuncts. [2020-10-21 23:39:08,174 WARN L193 SmtUtils]: Spent 131.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 30 [2020-10-21 23:39:08,174 INFO L625 ElimStorePlain]: treesize reduction 960, result has 3.6 percent of original size [2020-10-21 23:39:08,179 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2020-10-21 23:39:08,180 INFO L545 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-10-21 23:39:08,191 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-21 23:39:08,194 INFO L545 ElimStorePlain]: Start of recursive call 1: 4 dim-0 vars, 1 dim-1 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-10-21 23:39:08,194 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 6 variables, input treesize:38, output treesize:16 [2020-10-21 23:39:08,213 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2020-10-21 23:39:08,214 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-10-21 23:39:08,218 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-21 23:39:08,219 INFO L545 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-10-21 23:39:08,219 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:16, output treesize:4 [2020-10-21 23:39:08,250 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2020-10-21 23:39:08,250 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-10-21 23:39:08,262 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-21 23:39:08,262 INFO L545 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-10-21 23:39:08,262 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:18, output treesize:14 [2020-10-21 23:39:08,292 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 24 [2020-10-21 23:39:08,293 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-10-21 23:39:08,300 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-21 23:39:08,301 INFO L545 ElimStorePlain]: Start of recursive call 1: 4 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-10-21 23:39:08,301 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 5 variables, input treesize:29, output treesize:9 [2020-10-21 23:39:08,373 INFO L350 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-10-21 23:39:08,374 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 34 treesize of output 99 [2020-10-21 23:39:08,375 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-10-21 23:39:08,399 INFO L625 ElimStorePlain]: treesize reduction 69, result has 28.1 percent of original size [2020-10-21 23:39:08,400 INFO L545 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-10-21 23:39:08,401 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:37, output treesize:13 [2020-10-21 23:39:08,431 INFO L350 Elim1Store]: treesize reduction 29, result has 23.7 percent of original size [2020-10-21 23:39:08,432 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 25 treesize of output 24 [2020-10-21 23:39:08,433 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-10-21 23:39:08,440 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-21 23:39:08,441 INFO L545 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-10-21 23:39:08,441 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:28, output treesize:13 [2020-10-21 23:39:08,445 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 7 [2020-10-21 23:39:08,446 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-10-21 23:39:08,447 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-21 23:39:08,448 INFO L545 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-10-21 23:39:08,448 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:19, output treesize:1 [2020-10-21 23:39:08,458 INFO L134 CoverageAnalysis]: Checked inductivity of 261 backedges. 67 proven. 40 refuted. 0 times theorem prover too weak. 154 trivial. 0 not checked. [2020-10-21 23:39:08,459 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-10-21 23:39:08,459 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 8] total 19 [2020-10-21 23:39:08,459 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1217942112] [2020-10-21 23:39:08,459 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-21 23:39:08,504 INFO L249 McrAutomatonBuilder]: Started intersection. [2020-10-21 23:39:09,531 INFO L252 McrAutomatonBuilder]: Finished intersection with 154 states and 223 transitions. [2020-10-21 23:39:09,532 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-21 23:39:10,288 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-10-21 23:39:10,288 INFO L461 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-10-21 23:39:10,288 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-21 23:39:10,289 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-10-21 23:39:10,289 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=85, Invalid=257, Unknown=0, NotChecked=0, Total=342 [2020-10-21 23:39:10,289 INFO L87 Difference]: Start difference. First operand 484 states and 923 transitions. Second operand 12 states. [2020-10-21 23:39:10,390 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-21 23:39:10,391 INFO L93 Difference]: Finished difference Result 560 states and 1064 transitions. [2020-10-21 23:39:10,391 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-10-21 23:39:10,391 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 83 [2020-10-21 23:39:10,392 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-21 23:39:10,394 INFO L225 Difference]: With dead ends: 560 [2020-10-21 23:39:10,394 INFO L226 Difference]: Without dead ends: 560 [2020-10-21 23:39:10,394 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 164 GetRequests, 147 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 76 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=85, Invalid=257, Unknown=0, NotChecked=0, Total=342 [2020-10-21 23:39:10,395 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 560 states. [2020-10-21 23:39:10,403 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 560 to 524. [2020-10-21 23:39:10,403 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 524 states. [2020-10-21 23:39:10,404 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 524 states to 524 states and 997 transitions. [2020-10-21 23:39:10,405 INFO L78 Accepts]: Start accepts. Automaton has 524 states and 997 transitions. Word has length 83 [2020-10-21 23:39:10,405 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-21 23:39:10,405 INFO L481 AbstractCegarLoop]: Abstraction has 524 states and 997 transitions. [2020-10-21 23:39:10,405 INFO L482 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-10-21 23:39:10,405 INFO L276 IsEmpty]: Start isEmpty. Operand 524 states and 997 transitions. [2020-10-21 23:39:10,407 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2020-10-21 23:39:10,407 INFO L414 BasicCegarLoop]: Found error trace [2020-10-21 23:39:10,407 INFO L422 BasicCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-21 23:39:10,621 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12,10 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-21 23:39:10,621 INFO L429 AbstractCegarLoop]: === Iteration 14 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-21 23:39:10,622 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-21 23:39:10,622 INFO L82 PathProgramCache]: Analyzing trace with hash -350829246, now seen corresponding path program 10 times [2020-10-21 23:39:10,624 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-21 23:39:10,624 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [341286699] [2020-10-21 23:39:10,624 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-21 23:39:10,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-21 23:39:10,784 INFO L134 CoverageAnalysis]: Checked inductivity of 325 backedges. 0 proven. 325 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-21 23:39:10,784 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [341286699] [2020-10-21 23:39:10,784 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1337410675] [2020-10-21 23:39:10,785 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 11 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 11 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-21 23:39:22,064 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2020-10-21 23:39:22,065 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-10-21 23:39:22,226 INFO L263 TraceCheckSpWp]: Trace formula consists of 531 conjuncts, 12 conjunts are in the unsatisfiable core [2020-10-21 23:39:22,228 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-21 23:39:22,250 INFO L134 CoverageAnalysis]: Checked inductivity of 325 backedges. 0 proven. 325 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-21 23:39:22,251 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-10-21 23:39:22,251 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 13] total 14 [2020-10-21 23:39:22,251 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1680707476] [2020-10-21 23:39:22,251 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-21 23:39:22,290 INFO L249 McrAutomatonBuilder]: Started intersection. [2020-10-21 23:39:22,906 INFO L252 McrAutomatonBuilder]: Finished intersection with 168 states and 244 transitions. [2020-10-21 23:39:22,907 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-21 23:39:23,204 WARN L193 SmtUtils]: Spent 274.00 ms on a formula simplification. DAG size of input: 38 DAG size of output: 3 [2020-10-21 23:39:24,317 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-10-21 23:39:24,317 INFO L461 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-10-21 23:39:24,318 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-21 23:39:24,318 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-10-21 23:39:24,318 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=91, Invalid=91, Unknown=0, NotChecked=0, Total=182 [2020-10-21 23:39:24,318 INFO L87 Difference]: Start difference. First operand 524 states and 997 transitions. Second operand 13 states. [2020-10-21 23:39:24,435 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-21 23:39:24,435 INFO L93 Difference]: Finished difference Result 600 states and 1138 transitions. [2020-10-21 23:39:24,436 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-10-21 23:39:24,436 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 90 [2020-10-21 23:39:24,437 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-21 23:39:24,441 INFO L225 Difference]: With dead ends: 600 [2020-10-21 23:39:24,441 INFO L226 Difference]: Without dead ends: 600 [2020-10-21 23:39:24,441 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 179 GetRequests, 167 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=91, Invalid=91, Unknown=0, NotChecked=0, Total=182 [2020-10-21 23:39:24,443 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 600 states. [2020-10-21 23:39:24,454 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 600 to 564. [2020-10-21 23:39:24,454 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 564 states. [2020-10-21 23:39:24,456 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 564 states to 564 states and 1071 transitions. [2020-10-21 23:39:24,456 INFO L78 Accepts]: Start accepts. Automaton has 564 states and 1071 transitions. Word has length 90 [2020-10-21 23:39:24,456 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-21 23:39:24,456 INFO L481 AbstractCegarLoop]: Abstraction has 564 states and 1071 transitions. [2020-10-21 23:39:24,457 INFO L482 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-10-21 23:39:24,457 INFO L276 IsEmpty]: Start isEmpty. Operand 564 states and 1071 transitions. [2020-10-21 23:39:24,458 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2020-10-21 23:39:24,458 INFO L414 BasicCegarLoop]: Found error trace [2020-10-21 23:39:24,459 INFO L422 BasicCegarLoop]: trace histogram [11, 11, 11, 11, 11, 11, 11, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-21 23:39:24,659 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13,11 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-21 23:39:24,659 INFO L429 AbstractCegarLoop]: === Iteration 15 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-21 23:39:24,660 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-21 23:39:24,660 INFO L82 PathProgramCache]: Analyzing trace with hash 55408263, now seen corresponding path program 11 times [2020-10-21 23:39:24,662 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-21 23:39:24,662 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1259779989] [2020-10-21 23:39:24,662 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-21 23:39:24,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-21 23:39:24,865 INFO L134 CoverageAnalysis]: Checked inductivity of 396 backedges. 0 proven. 396 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-21 23:39:24,865 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1259779989] [2020-10-21 23:39:24,865 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [733091894] [2020-10-21 23:39:24,865 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 12 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 12 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-21 23:39:25,048 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 4 check-sat command(s) [2020-10-21 23:39:25,049 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-10-21 23:39:25,050 INFO L263 TraceCheckSpWp]: Trace formula consists of 142 conjuncts, 41 conjunts are in the unsatisfiable core [2020-10-21 23:39:25,054 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-21 23:39:25,093 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 13 [2020-10-21 23:39:25,094 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-10-21 23:39:25,096 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-21 23:39:25,097 INFO L545 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-10-21 23:39:25,097 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:23, output treesize:9 [2020-10-21 23:39:25,134 INFO L350 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-10-21 23:39:25,134 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 25 treesize of output 62 [2020-10-21 23:39:25,135 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-10-21 23:39:25,168 INFO L625 ElimStorePlain]: treesize reduction 24, result has 62.5 percent of original size [2020-10-21 23:39:25,169 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-21 23:39:25,174 INFO L545 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: and 2 xjuncts. [2020-10-21 23:39:25,174 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:30, output treesize:35 [2020-10-21 23:39:25,254 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-21 23:39:25,283 INFO L350 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-10-21 23:39:25,284 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 25 treesize of output 54 [2020-10-21 23:39:25,284 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-21 23:39:25,286 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-10-21 23:39:25,300 INFO L173 IndexEqualityManager]: detected equality via solver [2020-10-21 23:39:25,322 INFO L350 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-10-21 23:39:25,323 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 2 case distinctions, treesize of input 34 treesize of output 57 [2020-10-21 23:39:25,324 INFO L545 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-10-21 23:39:25,435 WARN L193 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 46 [2020-10-21 23:39:25,436 INFO L625 ElimStorePlain]: treesize reduction 50, result has 64.8 percent of original size [2020-10-21 23:39:25,438 INFO L545 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: and 2 xjuncts. [2020-10-21 23:39:25,438 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:96, output treesize:48 [2020-10-21 23:39:25,494 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-21 23:39:25,502 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-10-21 23:39:25,509 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 24 [2020-10-21 23:39:25,510 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-10-21 23:39:25,517 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2020-10-21 23:39:25,517 INFO L545 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-10-21 23:39:25,550 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-21 23:39:25,552 INFO L545 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 2 xjuncts. [2020-10-21 23:39:25,552 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:78, output treesize:48 [2020-10-21 23:39:25,631 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 13 [2020-10-21 23:39:25,632 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-10-21 23:39:25,642 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-21 23:39:25,643 INFO L545 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-10-21 23:39:25,643 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:47, output treesize:34 [2020-10-21 23:39:25,691 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-10-21 23:39:25,692 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 32 [2020-10-21 23:39:25,692 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-10-21 23:39:25,700 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-21 23:39:25,701 INFO L545 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-10-21 23:39:25,701 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 4 variables, input treesize:40, output treesize:9 [2020-10-21 23:39:25,744 INFO L350 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-10-21 23:39:25,744 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 34 treesize of output 57 [2020-10-21 23:39:25,745 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-10-21 23:39:25,766 INFO L625 ElimStorePlain]: treesize reduction 30, result has 44.4 percent of original size [2020-10-21 23:39:25,767 INFO L545 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-10-21 23:39:25,767 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:34, output treesize:9 [2020-10-21 23:39:25,805 INFO L350 Elim1Store]: treesize reduction 29, result has 23.7 percent of original size [2020-10-21 23:39:25,805 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 25 treesize of output 24 [2020-10-21 23:39:25,806 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-10-21 23:39:25,818 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-21 23:39:25,819 INFO L545 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-10-21 23:39:25,819 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:25, output treesize:9 [2020-10-21 23:39:25,836 INFO L134 CoverageAnalysis]: Checked inductivity of 396 backedges. 219 proven. 8 refuted. 0 times theorem prover too weak. 169 trivial. 0 not checked. [2020-10-21 23:39:25,837 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-10-21 23:39:25,837 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 12] total 24 [2020-10-21 23:39:25,837 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [608366518] [2020-10-21 23:39:25,837 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-21 23:39:25,883 INFO L249 McrAutomatonBuilder]: Started intersection. [2020-10-21 23:39:26,500 INFO L252 McrAutomatonBuilder]: Finished intersection with 182 states and 265 transitions. [2020-10-21 23:39:26,500 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-21 23:39:27,282 WARN L193 SmtUtils]: Spent 749.00 ms on a formula simplification. DAG size of input: 38 DAG size of output: 3 [2020-10-21 23:39:28,210 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-10-21 23:39:28,210 INFO L461 AbstractCegarLoop]: Interpolant automaton has 14 states [2020-10-21 23:39:28,210 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-21 23:39:28,211 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2020-10-21 23:39:28,211 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=125, Invalid=427, Unknown=0, NotChecked=0, Total=552 [2020-10-21 23:39:28,211 INFO L87 Difference]: Start difference. First operand 564 states and 1071 transitions. Second operand 14 states. [2020-10-21 23:39:28,320 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-21 23:39:28,321 INFO L93 Difference]: Finished difference Result 640 states and 1212 transitions. [2020-10-21 23:39:28,321 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-10-21 23:39:28,321 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 97 [2020-10-21 23:39:28,322 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-21 23:39:28,325 INFO L225 Difference]: With dead ends: 640 [2020-10-21 23:39:28,325 INFO L226 Difference]: Without dead ends: 640 [2020-10-21 23:39:28,325 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 194 GetRequests, 172 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 137 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=125, Invalid=427, Unknown=0, NotChecked=0, Total=552 [2020-10-21 23:39:28,327 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 640 states. [2020-10-21 23:39:28,335 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 640 to 604. [2020-10-21 23:39:28,336 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 604 states. [2020-10-21 23:39:28,337 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 604 states to 604 states and 1145 transitions. [2020-10-21 23:39:28,337 INFO L78 Accepts]: Start accepts. Automaton has 604 states and 1145 transitions. Word has length 97 [2020-10-21 23:39:28,338 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-21 23:39:28,338 INFO L481 AbstractCegarLoop]: Abstraction has 604 states and 1145 transitions. [2020-10-21 23:39:28,338 INFO L482 AbstractCegarLoop]: Interpolant automaton has 14 states. [2020-10-21 23:39:28,338 INFO L276 IsEmpty]: Start isEmpty. Operand 604 states and 1145 transitions. [2020-10-21 23:39:28,340 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2020-10-21 23:39:28,340 INFO L414 BasicCegarLoop]: Found error trace [2020-10-21 23:39:28,340 INFO L422 BasicCegarLoop]: trace histogram [12, 12, 12, 12, 12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-21 23:39:28,555 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2020-10-21 23:39:28,556 INFO L429 AbstractCegarLoop]: === Iteration 16 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-21 23:39:28,556 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-21 23:39:28,556 INFO L82 PathProgramCache]: Analyzing trace with hash 302955938, now seen corresponding path program 12 times [2020-10-21 23:39:28,557 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-21 23:39:28,557 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [220240996] [2020-10-21 23:39:28,557 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-21 23:39:28,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-21 23:39:28,799 INFO L134 CoverageAnalysis]: Checked inductivity of 474 backedges. 0 proven. 474 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-21 23:39:28,800 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [220240996] [2020-10-21 23:39:28,800 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [347849407] [2020-10-21 23:39:28,800 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 13 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 13 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-21 23:39:33,893 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 6 check-sat command(s) [2020-10-21 23:39:33,893 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-10-21 23:39:33,920 INFO L263 TraceCheckSpWp]: Trace formula consists of 356 conjuncts, 31 conjunts are in the unsatisfiable core [2020-10-21 23:39:33,923 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-21 23:39:33,932 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 491 treesize of output 475 [2020-10-21 23:39:33,934 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 2 xjuncts. [2020-10-21 23:39:34,038 WARN L193 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 23 [2020-10-21 23:39:34,039 INFO L625 ElimStorePlain]: treesize reduction 426, result has 5.5 percent of original size [2020-10-21 23:39:34,042 INFO L545 ElimStorePlain]: Start of recursive call 1: 5 dim-0 vars, 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2020-10-21 23:39:34,042 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 6 variables, input treesize:26, output treesize:4 [2020-10-21 23:39:34,071 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2020-10-21 23:39:34,071 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-10-21 23:39:34,076 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-21 23:39:34,077 INFO L545 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-10-21 23:39:34,077 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:18, output treesize:14 [2020-10-21 23:39:34,102 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 24 [2020-10-21 23:39:34,102 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-10-21 23:39:34,109 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-21 23:39:34,110 INFO L545 ElimStorePlain]: Start of recursive call 1: 4 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-10-21 23:39:34,110 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 5 variables, input treesize:29, output treesize:9 [2020-10-21 23:39:34,159 INFO L173 IndexEqualityManager]: detected equality via solver [2020-10-21 23:39:34,190 INFO L350 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-10-21 23:39:34,191 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 34 treesize of output 99 [2020-10-21 23:39:34,192 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-10-21 23:39:34,224 INFO L625 ElimStorePlain]: treesize reduction 69, result has 28.1 percent of original size [2020-10-21 23:39:34,226 INFO L545 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-10-21 23:39:34,226 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:37, output treesize:13 [2020-10-21 23:39:34,249 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-10-21 23:39:34,250 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 24 [2020-10-21 23:39:34,250 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-10-21 23:39:34,257 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-21 23:39:34,261 INFO L545 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-10-21 23:39:34,262 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:28, output treesize:13 [2020-10-21 23:39:34,264 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 7 [2020-10-21 23:39:34,265 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-10-21 23:39:34,266 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-21 23:39:34,266 INFO L545 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-10-21 23:39:34,266 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:19, output treesize:1 [2020-10-21 23:39:34,276 INFO L134 CoverageAnalysis]: Checked inductivity of 474 backedges. 230 proven. 15 refuted. 0 times theorem prover too weak. 229 trivial. 0 not checked. [2020-10-21 23:39:34,276 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-10-21 23:39:34,276 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 7] total 21 [2020-10-21 23:39:34,277 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1716310259] [2020-10-21 23:39:34,277 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-21 23:39:34,315 INFO L249 McrAutomatonBuilder]: Started intersection. [2020-10-21 23:39:34,935 INFO L252 McrAutomatonBuilder]: Finished intersection with 196 states and 286 transitions. [2020-10-21 23:39:34,935 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-21 23:39:35,556 WARN L193 SmtUtils]: Spent 189.00 ms on a formula simplification. DAG size of input: 17 DAG size of output: 3 [2020-10-21 23:39:36,163 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-10-21 23:39:36,164 INFO L461 AbstractCegarLoop]: Interpolant automaton has 15 states [2020-10-21 23:39:36,164 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-21 23:39:36,164 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2020-10-21 23:39:36,165 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=121, Invalid=299, Unknown=0, NotChecked=0, Total=420 [2020-10-21 23:39:36,165 INFO L87 Difference]: Start difference. First operand 604 states and 1145 transitions. Second operand 15 states. [2020-10-21 23:39:36,290 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-21 23:39:36,290 INFO L93 Difference]: Finished difference Result 680 states and 1286 transitions. [2020-10-21 23:39:36,291 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-10-21 23:39:36,291 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 104 [2020-10-21 23:39:36,292 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-21 23:39:36,295 INFO L225 Difference]: With dead ends: 680 [2020-10-21 23:39:36,295 INFO L226 Difference]: Without dead ends: 680 [2020-10-21 23:39:36,295 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 209 GetRequests, 190 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 80 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=121, Invalid=299, Unknown=0, NotChecked=0, Total=420 [2020-10-21 23:39:36,297 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 680 states. [2020-10-21 23:39:36,305 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 680 to 644. [2020-10-21 23:39:36,305 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 644 states. [2020-10-21 23:39:36,307 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 644 states to 644 states and 1219 transitions. [2020-10-21 23:39:36,307 INFO L78 Accepts]: Start accepts. Automaton has 644 states and 1219 transitions. Word has length 104 [2020-10-21 23:39:36,307 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-21 23:39:36,308 INFO L481 AbstractCegarLoop]: Abstraction has 644 states and 1219 transitions. [2020-10-21 23:39:36,308 INFO L482 AbstractCegarLoop]: Interpolant automaton has 15 states. [2020-10-21 23:39:36,308 INFO L276 IsEmpty]: Start isEmpty. Operand 644 states and 1219 transitions. [2020-10-21 23:39:36,310 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2020-10-21 23:39:36,310 INFO L414 BasicCegarLoop]: Found error trace [2020-10-21 23:39:36,310 INFO L422 BasicCegarLoop]: trace histogram [13, 13, 13, 13, 13, 13, 13, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-21 23:39:36,523 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2020-10-21 23:39:36,524 INFO L429 AbstractCegarLoop]: === Iteration 17 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-21 23:39:36,524 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-21 23:39:36,524 INFO L82 PathProgramCache]: Analyzing trace with hash -2141236697, now seen corresponding path program 13 times [2020-10-21 23:39:36,527 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-21 23:39:36,527 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [901394794] [2020-10-21 23:39:36,527 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-21 23:39:36,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-21 23:39:36,749 INFO L134 CoverageAnalysis]: Checked inductivity of 559 backedges. 0 proven. 559 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-21 23:39:36,750 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [901394794] [2020-10-21 23:39:36,750 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [502032724] [2020-10-21 23:39:36,750 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 14 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 14 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-21 23:39:36,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-21 23:39:36,932 INFO L263 TraceCheckSpWp]: Trace formula consists of 636 conjuncts, 15 conjunts are in the unsatisfiable core [2020-10-21 23:39:36,935 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-21 23:39:36,974 INFO L134 CoverageAnalysis]: Checked inductivity of 559 backedges. 0 proven. 559 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-21 23:39:36,974 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-10-21 23:39:36,974 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 16] total 17 [2020-10-21 23:39:36,974 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1581349463] [2020-10-21 23:39:36,975 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-21 23:39:37,044 INFO L249 McrAutomatonBuilder]: Started intersection. [2020-10-21 23:39:38,241 INFO L252 McrAutomatonBuilder]: Finished intersection with 210 states and 307 transitions. [2020-10-21 23:39:38,242 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-21 23:39:39,764 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-10-21 23:39:39,764 INFO L461 AbstractCegarLoop]: Interpolant automaton has 16 states [2020-10-21 23:39:39,765 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-21 23:39:39,765 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2020-10-21 23:39:39,765 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=136, Invalid=136, Unknown=0, NotChecked=0, Total=272 [2020-10-21 23:39:39,766 INFO L87 Difference]: Start difference. First operand 644 states and 1219 transitions. Second operand 16 states. [2020-10-21 23:39:39,891 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-21 23:39:39,891 INFO L93 Difference]: Finished difference Result 720 states and 1360 transitions. [2020-10-21 23:39:39,892 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2020-10-21 23:39:39,892 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 111 [2020-10-21 23:39:39,892 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-21 23:39:39,895 INFO L225 Difference]: With dead ends: 720 [2020-10-21 23:39:39,895 INFO L226 Difference]: Without dead ends: 720 [2020-10-21 23:39:39,896 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 224 GetRequests, 209 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=136, Invalid=136, Unknown=0, NotChecked=0, Total=272 [2020-10-21 23:39:39,897 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 720 states. [2020-10-21 23:39:39,906 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 720 to 684. [2020-10-21 23:39:39,906 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 684 states. [2020-10-21 23:39:39,907 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 684 states to 684 states and 1293 transitions. [2020-10-21 23:39:39,908 INFO L78 Accepts]: Start accepts. Automaton has 684 states and 1293 transitions. Word has length 111 [2020-10-21 23:39:39,908 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-21 23:39:39,908 INFO L481 AbstractCegarLoop]: Abstraction has 684 states and 1293 transitions. [2020-10-21 23:39:39,908 INFO L482 AbstractCegarLoop]: Interpolant automaton has 16 states. [2020-10-21 23:39:39,908 INFO L276 IsEmpty]: Start isEmpty. Operand 684 states and 1293 transitions. [2020-10-21 23:39:39,910 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2020-10-21 23:39:39,910 INFO L414 BasicCegarLoop]: Found error trace [2020-10-21 23:39:39,910 INFO L422 BasicCegarLoop]: trace histogram [14, 14, 14, 14, 14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-21 23:39:40,125 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2020-10-21 23:39:40,126 INFO L429 AbstractCegarLoop]: === Iteration 18 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-21 23:39:40,126 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-21 23:39:40,127 INFO L82 PathProgramCache]: Analyzing trace with hash 2113703426, now seen corresponding path program 14 times [2020-10-21 23:39:40,129 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-21 23:39:40,129 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [965595105] [2020-10-21 23:39:40,130 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-21 23:39:40,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-21 23:39:40,430 INFO L134 CoverageAnalysis]: Checked inductivity of 651 backedges. 0 proven. 651 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-21 23:39:40,430 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [965595105] [2020-10-21 23:39:40,430 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [761578581] [2020-10-21 23:39:40,431 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 15 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 15 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-21 23:39:40,679 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2020-10-21 23:39:40,680 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-10-21 23:39:40,684 INFO L263 TraceCheckSpWp]: Trace formula consists of 671 conjuncts, 16 conjunts are in the unsatisfiable core [2020-10-21 23:39:40,687 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-21 23:39:40,739 INFO L134 CoverageAnalysis]: Checked inductivity of 651 backedges. 0 proven. 651 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-21 23:39:40,739 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-10-21 23:39:40,740 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 17] total 18 [2020-10-21 23:39:40,740 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1331399272] [2020-10-21 23:39:40,740 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-21 23:39:40,823 INFO L249 McrAutomatonBuilder]: Started intersection. [2020-10-21 23:39:41,924 INFO L252 McrAutomatonBuilder]: Finished intersection with 224 states and 328 transitions. [2020-10-21 23:39:41,924 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-21 23:39:43,054 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-10-21 23:39:43,055 INFO L461 AbstractCegarLoop]: Interpolant automaton has 17 states [2020-10-21 23:39:43,055 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-21 23:39:43,055 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2020-10-21 23:39:43,055 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=153, Invalid=153, Unknown=0, NotChecked=0, Total=306 [2020-10-21 23:39:43,056 INFO L87 Difference]: Start difference. First operand 684 states and 1293 transitions. Second operand 17 states. [2020-10-21 23:39:43,192 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-21 23:39:43,193 INFO L93 Difference]: Finished difference Result 760 states and 1434 transitions. [2020-10-21 23:39:43,193 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2020-10-21 23:39:43,193 INFO L78 Accepts]: Start accepts. Automaton has 17 states. Word has length 118 [2020-10-21 23:39:43,194 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-21 23:39:43,197 INFO L225 Difference]: With dead ends: 760 [2020-10-21 23:39:43,197 INFO L226 Difference]: Without dead ends: 760 [2020-10-21 23:39:43,197 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 239 GetRequests, 223 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 26 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=153, Invalid=153, Unknown=0, NotChecked=0, Total=306 [2020-10-21 23:39:43,199 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 760 states. [2020-10-21 23:39:43,207 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 760 to 724. [2020-10-21 23:39:43,207 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 724 states. [2020-10-21 23:39:43,209 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 724 states to 724 states and 1367 transitions. [2020-10-21 23:39:43,209 INFO L78 Accepts]: Start accepts. Automaton has 724 states and 1367 transitions. Word has length 118 [2020-10-21 23:39:43,209 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-21 23:39:43,209 INFO L481 AbstractCegarLoop]: Abstraction has 724 states and 1367 transitions. [2020-10-21 23:39:43,210 INFO L482 AbstractCegarLoop]: Interpolant automaton has 17 states. [2020-10-21 23:39:43,210 INFO L276 IsEmpty]: Start isEmpty. Operand 724 states and 1367 transitions. [2020-10-21 23:39:43,213 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 126 [2020-10-21 23:39:43,213 INFO L414 BasicCegarLoop]: Found error trace [2020-10-21 23:39:43,214 INFO L422 BasicCegarLoop]: trace histogram [15, 15, 15, 15, 15, 15, 15, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-21 23:39:43,427 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17,15 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-21 23:39:43,427 INFO L429 AbstractCegarLoop]: === Iteration 19 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-21 23:39:43,428 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-21 23:39:43,428 INFO L82 PathProgramCache]: Analyzing trace with hash 683169223, now seen corresponding path program 15 times [2020-10-21 23:39:43,429 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-21 23:39:43,429 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1376233025] [2020-10-21 23:39:43,429 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-21 23:39:43,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-21 23:39:43,688 INFO L134 CoverageAnalysis]: Checked inductivity of 750 backedges. 0 proven. 750 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-21 23:39:43,688 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1376233025] [2020-10-21 23:39:43,688 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1577717486] [2020-10-21 23:39:43,689 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 16 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 16 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-21 23:39:44,451 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 4 check-sat command(s) [2020-10-21 23:39:44,451 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-10-21 23:39:44,456 INFO L263 TraceCheckSpWp]: Trace formula consists of 286 conjuncts, 36 conjunts are in the unsatisfiable core [2020-10-21 23:39:44,459 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-21 23:39:44,465 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 93 treesize of output 91 [2020-10-21 23:39:44,467 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-10-21 23:39:44,513 INFO L625 ElimStorePlain]: treesize reduction 63, result has 36.4 percent of original size [2020-10-21 23:39:44,518 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2020-10-21 23:39:44,518 INFO L545 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-10-21 23:39:44,531 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-21 23:39:44,534 INFO L545 ElimStorePlain]: Start of recursive call 1: 4 dim-0 vars, 1 dim-1 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-10-21 23:39:44,534 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 6 variables, input treesize:38, output treesize:16 [2020-10-21 23:39:44,555 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2020-10-21 23:39:44,556 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-10-21 23:39:44,560 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-21 23:39:44,564 INFO L545 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-10-21 23:39:44,564 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:16, output treesize:4 [2020-10-21 23:39:44,604 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2020-10-21 23:39:44,604 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-10-21 23:39:44,610 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-21 23:39:44,610 INFO L545 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-10-21 23:39:44,610 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:18, output treesize:14 [2020-10-21 23:39:44,637 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 24 [2020-10-21 23:39:44,638 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-10-21 23:39:44,644 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-21 23:39:44,645 INFO L545 ElimStorePlain]: Start of recursive call 1: 4 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-10-21 23:39:44,645 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 5 variables, input treesize:29, output treesize:9 [2020-10-21 23:39:44,698 INFO L173 IndexEqualityManager]: detected equality via solver [2020-10-21 23:39:44,728 INFO L350 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-10-21 23:39:44,728 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 34 treesize of output 99 [2020-10-21 23:39:44,729 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-10-21 23:39:44,756 INFO L625 ElimStorePlain]: treesize reduction 69, result has 28.1 percent of original size [2020-10-21 23:39:44,757 INFO L545 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-10-21 23:39:44,757 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:37, output treesize:13 [2020-10-21 23:39:44,790 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-10-21 23:39:44,791 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 24 [2020-10-21 23:39:44,791 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-10-21 23:39:44,797 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-21 23:39:44,799 INFO L545 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-10-21 23:39:44,800 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:28, output treesize:13 [2020-10-21 23:39:44,803 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 7 [2020-10-21 23:39:44,803 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-10-21 23:39:44,812 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-21 23:39:44,812 INFO L545 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-10-21 23:39:44,812 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:19, output treesize:1 [2020-10-21 23:39:44,828 INFO L134 CoverageAnalysis]: Checked inductivity of 750 backedges. 121 proven. 70 refuted. 0 times theorem prover too weak. 559 trivial. 0 not checked. [2020-10-21 23:39:44,828 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-10-21 23:39:44,828 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [18, 8] total 25 [2020-10-21 23:39:44,828 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [874512135] [2020-10-21 23:39:44,829 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-21 23:39:44,970 INFO L249 McrAutomatonBuilder]: Started intersection. [2020-10-21 23:39:46,153 INFO L252 McrAutomatonBuilder]: Finished intersection with 238 states and 349 transitions. [2020-10-21 23:39:46,154 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-21 23:39:47,366 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-10-21 23:39:47,366 INFO L461 AbstractCegarLoop]: Interpolant automaton has 18 states [2020-10-21 23:39:47,367 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-21 23:39:47,367 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2020-10-21 23:39:47,367 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=172, Invalid=428, Unknown=0, NotChecked=0, Total=600 [2020-10-21 23:39:47,368 INFO L87 Difference]: Start difference. First operand 724 states and 1367 transitions. Second operand 18 states. [2020-10-21 23:39:47,516 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-21 23:39:47,516 INFO L93 Difference]: Finished difference Result 800 states and 1508 transitions. [2020-10-21 23:39:47,517 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2020-10-21 23:39:47,517 INFO L78 Accepts]: Start accepts. Automaton has 18 states. Word has length 125 [2020-10-21 23:39:47,517 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-21 23:39:47,520 INFO L225 Difference]: With dead ends: 800 [2020-10-21 23:39:47,520 INFO L226 Difference]: Without dead ends: 800 [2020-10-21 23:39:47,521 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 254 GetRequests, 231 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 118 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=172, Invalid=428, Unknown=0, NotChecked=0, Total=600 [2020-10-21 23:39:47,522 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 800 states. [2020-10-21 23:39:47,531 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 800 to 764. [2020-10-21 23:39:47,531 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 764 states. [2020-10-21 23:39:47,532 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 764 states to 764 states and 1441 transitions. [2020-10-21 23:39:47,533 INFO L78 Accepts]: Start accepts. Automaton has 764 states and 1441 transitions. Word has length 125 [2020-10-21 23:39:47,533 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-21 23:39:47,533 INFO L481 AbstractCegarLoop]: Abstraction has 764 states and 1441 transitions. [2020-10-21 23:39:47,533 INFO L482 AbstractCegarLoop]: Interpolant automaton has 18 states. [2020-10-21 23:39:47,533 INFO L276 IsEmpty]: Start isEmpty. Operand 764 states and 1441 transitions. [2020-10-21 23:39:47,535 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2020-10-21 23:39:47,535 INFO L414 BasicCegarLoop]: Found error trace [2020-10-21 23:39:47,536 INFO L422 BasicCegarLoop]: trace histogram [16, 16, 16, 16, 16, 16, 16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-21 23:39:47,750 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,16 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-21 23:39:47,750 INFO L429 AbstractCegarLoop]: === Iteration 20 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-21 23:39:47,751 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-21 23:39:47,751 INFO L82 PathProgramCache]: Analyzing trace with hash -3787166, now seen corresponding path program 16 times [2020-10-21 23:39:47,752 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-21 23:39:47,752 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1812167208] [2020-10-21 23:39:47,752 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-21 23:39:47,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-21 23:39:48,034 INFO L134 CoverageAnalysis]: Checked inductivity of 856 backedges. 0 proven. 856 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-21 23:39:48,035 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1812167208] [2020-10-21 23:39:48,035 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [255472559] [2020-10-21 23:39:48,035 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 17 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 17 with z3 -smt2 -in SMTLIB2_COMPLIANT=true Received shutdown request... Cannot interrupt operation gracefully because timeout expired. Forcing shutdown