/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.epf -i ../../../trunk/examples/svcomp/pthread/queue_ok.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-1d1d2b5 [2020-10-21 22:34:17,634 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-21 22:34:17,637 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-21 22:34:17,666 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-21 22:34:17,667 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-21 22:34:17,668 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-21 22:34:17,669 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-21 22:34:17,671 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-21 22:34:17,673 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-21 22:34:17,674 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-21 22:34:17,675 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-21 22:34:17,676 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-21 22:34:17,676 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-21 22:34:17,677 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-21 22:34:17,678 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-21 22:34:17,679 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-21 22:34:17,680 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-21 22:34:17,681 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-21 22:34:17,685 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-21 22:34:17,688 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-21 22:34:17,689 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-21 22:34:17,694 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-21 22:34:17,697 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-21 22:34:17,698 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-21 22:34:17,704 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-10-21 22:34:17,712 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-21 22:34:17,713 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-21 22:34:17,715 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-21 22:34:17,716 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-21 22:34:17,717 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-21 22:34:17,717 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-21 22:34:17,718 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-21 22:34:17,718 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-21 22:34:17,718 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-21 22:34:17,720 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-21 22:34:17,720 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-21 22:34:17,723 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.epf [2020-10-21 22:34:17,770 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-21 22:34:17,771 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-21 22:34:17,776 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-21 22:34:17,777 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-21 22:34:17,777 INFO L138 SettingsManager]: * Use SBE=true [2020-10-21 22:34:17,777 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-21 22:34:17,777 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-21 22:34:17,777 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-21 22:34:17,778 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-21 22:34:17,778 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-21 22:34:17,781 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-21 22:34:17,781 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-21 22:34:17,781 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-21 22:34:17,781 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-21 22:34:17,781 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-21 22:34:17,782 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-21 22:34:17,782 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-21 22:34:17,783 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-21 22:34:17,783 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-21 22:34:17,783 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-21 22:34:17,784 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-21 22:34:17,784 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-21 22:34:17,784 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-21 22:34:17,784 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=Craig_NestedInterpolation [2020-10-21 22:34:17,784 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-21 22:34:17,784 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-21 22:34:17,785 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-21 22:34:17,785 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=VARIABLE_BASED_MOVER_CHECK [2020-10-21 22:34:17,785 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-21 22:34:18,095 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-21 22:34:18,110 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-21 22:34:18,115 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-21 22:34:18,116 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-21 22:34:18,116 INFO L275 PluginConnector]: CDTParser initialized [2020-10-21 22:34:18,117 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread/queue_ok.i [2020-10-21 22:34:18,174 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e0f53f1ef/888108a965b04617afe511333195c6b4/FLAG463edf2fd [2020-10-21 22:34:18,730 INFO L306 CDTParser]: Found 1 translation units. [2020-10-21 22:34:18,731 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread/queue_ok.i [2020-10-21 22:34:18,755 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e0f53f1ef/888108a965b04617afe511333195c6b4/FLAG463edf2fd [2020-10-21 22:34:19,003 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e0f53f1ef/888108a965b04617afe511333195c6b4 [2020-10-21 22:34:19,012 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-21 22:34:19,019 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2020-10-21 22:34:19,020 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-21 22:34:19,020 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-21 22:34:19,023 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-21 22:34:19,024 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.10 10:34:19" (1/1) ... [2020-10-21 22:34:19,027 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@519c3ed8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 10:34:19, skipping insertion in model container [2020-10-21 22:34:19,028 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.10 10:34:19" (1/1) ... [2020-10-21 22:34:19,035 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-21 22:34:19,113 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-21 22:34:19,671 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-21 22:34:19,685 INFO L203 MainTranslator]: Completed pre-run [2020-10-21 22:34:19,756 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-21 22:34:19,910 INFO L208 MainTranslator]: Completed translation [2020-10-21 22:34:19,911 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 10:34:19 WrapperNode [2020-10-21 22:34:19,911 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-21 22:34:19,912 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-10-21 22:34:19,912 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-10-21 22:34:19,912 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-10-21 22:34:19,923 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 10:34:19" (1/1) ... [2020-10-21 22:34:19,948 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 10:34:19" (1/1) ... [2020-10-21 22:34:19,990 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-10-21 22:34:19,990 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-21 22:34:19,990 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-21 22:34:19,991 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-21 22:34:20,002 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 10:34:19" (1/1) ... [2020-10-21 22:34:20,003 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 10:34:19" (1/1) ... [2020-10-21 22:34:20,008 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 10:34:19" (1/1) ... [2020-10-21 22:34:20,008 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 10:34:19" (1/1) ... [2020-10-21 22:34:20,019 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 10:34:19" (1/1) ... [2020-10-21 22:34:20,025 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 10:34:19" (1/1) ... [2020-10-21 22:34:20,028 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 10:34:19" (1/1) ... [2020-10-21 22:34:20,032 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-21 22:34:20,032 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-21 22:34:20,032 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-21 22:34:20,033 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-21 22:34:20,033 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 10:34:19" (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 22:34:20,105 INFO L130 BoogieDeclarations]: Found specification of procedure t1 [2020-10-21 22:34:20,105 INFO L138 BoogieDeclarations]: Found implementation of procedure t1 [2020-10-21 22:34:20,105 INFO L130 BoogieDeclarations]: Found specification of procedure t2 [2020-10-21 22:34:20,106 INFO L138 BoogieDeclarations]: Found implementation of procedure t2 [2020-10-21 22:34:20,106 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-21 22:34:20,106 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-21 22:34:20,106 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-21 22:34:20,107 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-21 22:34:20,107 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2020-10-21 22:34:20,107 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-21 22:34:20,107 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-21 22:34:20,108 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-21 22:34:20,109 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 22:34:20,682 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-21 22:34:20,682 INFO L298 CfgBuilder]: Removed 20 assume(true) statements. [2020-10-21 22:34:20,690 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.10 10:34:20 BoogieIcfgContainer [2020-10-21 22:34:20,690 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-21 22:34:20,692 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-21 22:34:20,692 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-21 22:34:20,695 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-21 22:34:20,695 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.10 10:34:19" (1/3) ... [2020-10-21 22:34:20,696 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@16b9fa55 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.10 10:34:20, skipping insertion in model container [2020-10-21 22:34:20,696 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 10:34:19" (2/3) ... [2020-10-21 22:34:20,697 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@16b9fa55 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.10 10:34:20, skipping insertion in model container [2020-10-21 22:34:20,697 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.10 10:34:20" (3/3) ... [2020-10-21 22:34:20,699 INFO L111 eAbstractionObserver]: Analyzing ICFG queue_ok.i [2020-10-21 22:34:20,710 WARN L153 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2020-10-21 22:34:20,711 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-21 22:34:20,718 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 2 error locations. [2020-10-21 22:34:20,719 INFO L348 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2020-10-21 22:34:20,781 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:34:20,781 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:34:20,781 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:34:20,782 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:34:20,782 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork1_~value~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:34:20,782 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork1_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:34:20,782 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork1_#t~nondet53| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:34:20,783 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork1_#t~nondet53| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:34:20,783 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork1_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:34:20,783 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork1_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:34:20,783 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork1_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:34:20,784 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:34:20,784 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:34:20,784 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork1_#t~nondet55| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:34:20,784 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork1_#t~nondet55| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:34:20,785 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork1_~value~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:34:20,785 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork1_#t~nondet55| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:34:20,785 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork1_~value~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:34:20,785 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork1_enqueue_#in~q.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:34:20,785 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork1_enqueue_#in~q.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:34:20,786 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork1_enqueue_#in~x| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:34:20,786 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork1_enqueue_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:34:20,787 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork1_enqueue_~x not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:34:20,787 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork1_enqueue_#t~mem40| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:34:20,787 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork1_enqueue_#t~post45| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:34:20,787 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork1_enqueue_#t~mem41| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:34:20,788 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork1_enqueue_#t~mem43| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:34:20,788 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork1_enqueue_~q.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:34:20,788 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork1_enqueue_#t~mem44| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:34:20,788 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork1_enqueue_#t~post42| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:34:20,788 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork1_enqueue_~q.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:34:20,789 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork1_enqueue_#in~q.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:34:20,789 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork1_enqueue_#in~q.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:34:20,789 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork1_enqueue_~q.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:34:20,789 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork1_enqueue_~q.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:34:20,790 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork1_enqueue_#in~x| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:34:20,790 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork1_enqueue_~x not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:34:20,790 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork1_enqueue_~q.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:34:20,791 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork1_enqueue_~q.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:34:20,792 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork1_enqueue_#t~mem40| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:34:20,793 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork1_enqueue_#t~mem40| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:34:20,793 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork1_enqueue_~x not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:34:20,794 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork1_enqueue_~q.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:34:20,794 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork1_enqueue_~q.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:34:20,794 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork1_enqueue_#t~mem40| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:34:20,795 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork1_enqueue_~q.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:34:20,795 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork1_enqueue_~q.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:34:20,795 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork1_enqueue_#t~mem41| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:34:20,795 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork1_enqueue_#t~mem41| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:34:20,796 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork1_enqueue_#t~post42| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:34:20,796 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork1_enqueue_~q.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:34:20,796 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork1_enqueue_#t~post42| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:34:20,796 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork1_enqueue_~q.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:34:20,796 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork1_enqueue_#t~mem41| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:34:20,796 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork1_enqueue_#t~post42| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:34:20,797 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork1_enqueue_~q.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:34:20,797 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork1_enqueue_~q.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:34:20,797 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork1_enqueue_#t~mem43| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:34:20,798 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork1_enqueue_#t~mem43| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:34:20,799 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork1_enqueue_#t~mem43| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:34:20,799 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork1_enqueue_#t~mem43| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:34:20,799 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork1_enqueue_#t~mem43| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:34:20,799 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork1_enqueue_~q.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:34:20,800 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork1_enqueue_~q.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:34:20,800 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork1_enqueue_~q.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:34:20,800 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork1_enqueue_~q.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:34:20,800 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork1_enqueue_#t~mem44| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:34:20,800 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork1_enqueue_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:34:20,801 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork1_enqueue_#t~mem44| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:34:20,801 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork1_enqueue_#t~post45| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:34:20,801 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork1_enqueue_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:34:20,801 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork1_#t~ret56| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:34:20,802 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork1_enqueue_#t~post45| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:34:20,802 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork1_enqueue_~q.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:34:20,802 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork1_enqueue_~q.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:34:20,803 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork1_#t~ret56| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:34:20,803 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork1_enqueue_#t~mem44| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:34:20,803 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork1_#t~ret56| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:34:20,804 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork1_enqueue_#t~post45| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:34:20,804 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork1_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:34:20,804 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork1_~value~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:34:20,805 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork1_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:34:20,805 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork1_#t~post54| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:34:20,805 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork1_#t~post54| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:34:20,805 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork1_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:34:20,805 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork1_#t~post54| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:34:20,811 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:34:20,811 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:34:20,811 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:34:20,812 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:34:20,812 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork0_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:34:20,812 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork0_#t~nondet57| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:34:20,812 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork0_#t~nondet57| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:34:20,812 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork0_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:34:20,813 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork0_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:34:20,813 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork0_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:34:20,813 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:34:20,813 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:34:20,814 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork0_empty_#in~q.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:34:20,814 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork0_empty_#in~q.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:34:20,814 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork0_empty_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:34:20,814 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork0_empty_#t~nondet35| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:34:20,814 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork0_empty_#t~mem33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:34:20,815 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork0_empty_#t~mem34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:34:20,818 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork0_empty_~q.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:34:20,819 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork0_empty_~q.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:34:20,819 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork0_empty_#in~q.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:34:20,819 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork0_empty_#in~q.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:34:20,826 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork0_empty_~q.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:34:20,826 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork0_empty_~q.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:34:20,826 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork0_empty_~q.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:34:20,827 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork0_empty_~q.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:34:20,827 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork0_empty_#t~mem33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:34:20,827 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork0_empty_~q.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:34:20,827 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork0_empty_~q.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:34:20,827 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork0_empty_#t~mem34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:34:20,828 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork0_empty_#t~mem33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:34:20,828 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork0_empty_#t~mem34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:34:20,828 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork0_empty_#t~mem33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:34:20,828 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork0_empty_#t~mem34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:34:20,828 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork0_empty_#t~mem34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:34:20,828 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork0_empty_#t~mem34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:34:20,829 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork0_empty_#t~mem33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:34:20,829 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork0_empty_#t~mem33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:34:20,829 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork0_empty_#t~nondet35| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:34:20,829 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork0_empty_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:34:20,829 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork0_empty_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:34:20,829 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork0_empty_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:34:20,830 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork0_#t~ret59| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:34:20,830 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork0_#t~ret59| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:34:20,830 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork0_#t~ret59| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:34:20,830 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork0_#t~ret59| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:34:20,830 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork0_#t~ret59| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:34:20,830 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork0_#t~ret59| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:34:20,831 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork0_dequeue_#in~q.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:34:20,831 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork0_dequeue_#in~q.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:34:20,831 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork0_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:34:20,831 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork0_#t~post58| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:34:20,831 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork0_dequeue_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:34:20,832 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork0_#t~post58| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:34:20,832 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork0_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:34:20,832 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork0_dequeue_~x~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:34:20,832 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork0_dequeue_~q.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:34:20,832 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork0_dequeue_#t~post49| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:34:20,832 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork0_dequeue_~q.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:34:20,833 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork0_dequeue_#t~mem51| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:34:20,833 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork0_dequeue_#t~mem50| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:34:20,833 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork0_dequeue_#t~post52| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:34:20,833 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork0_dequeue_#t~mem46| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:34:20,833 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork0_dequeue_#t~mem48| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:34:20,833 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork0_dequeue_#t~mem47| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:34:20,834 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork0_#t~post58| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:34:20,834 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork0_dequeue_#in~q.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:34:20,834 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork0_dequeue_#in~q.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:34:20,834 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork0_dequeue_~q.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:34:20,834 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork0_dequeue_~q.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:34:20,834 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork0_dequeue_~x~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:34:20,835 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork0_dequeue_~q.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:34:20,835 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork0_dequeue_~q.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:34:20,835 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork0_dequeue_#t~mem46| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:34:20,835 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork0_dequeue_~q.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:34:20,835 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork0_dequeue_~q.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:34:20,835 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork0_dequeue_#t~mem46| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:34:20,836 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork0_dequeue_#t~mem47| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:34:20,836 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork0_dequeue_#t~mem47| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:34:20,836 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork0_dequeue_~x~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:34:20,836 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork0_dequeue_#t~mem46| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:34:20,836 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork0_dequeue_#t~mem47| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:34:20,837 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork0_dequeue_~q.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:34:20,837 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork0_dequeue_~q.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:34:20,838 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork0_dequeue_#t~mem48| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:34:20,838 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork0_dequeue_#t~mem48| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:34:20,839 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork0_dequeue_#t~post49| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:34:20,839 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork0_dequeue_~q.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:34:20,840 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork0_dequeue_#t~post49| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:34:20,840 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork0_dequeue_~q.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:34:20,840 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork0_dequeue_#t~mem48| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:34:20,840 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork0_dequeue_#t~post49| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:34:20,840 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork0_dequeue_~q.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:34:20,840 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork0_dequeue_~q.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:34:20,841 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork0_dequeue_#t~mem50| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:34:20,841 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork0_dequeue_#t~mem50| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:34:20,841 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork0_dequeue_#t~mem50| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:34:20,841 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork0_dequeue_#t~mem50| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:34:20,842 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork0_dequeue_#t~mem50| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:34:20,842 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork0_dequeue_~q.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:34:20,842 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork0_dequeue_~q.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:34:20,842 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork0_dequeue_~q.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:34:20,842 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork0_dequeue_~q.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:34:20,842 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork0_dequeue_#t~mem51| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:34:20,843 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork0_dequeue_~x~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:34:20,843 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork0_dequeue_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:34:20,843 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork0_dequeue_#t~mem51| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:34:20,843 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork0_dequeue_#t~post52| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:34:20,844 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork0_dequeue_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:34:20,844 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork0_#t~ret60| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:34:20,844 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork0_dequeue_~q.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:34:20,844 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork0_dequeue_#t~post52| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:34:20,848 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork0_dequeue_~q.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:34:20,849 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork0_#t~ret60| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:34:20,849 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork0_dequeue_#t~post52| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:34:20,849 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork0_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:34:20,849 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork0_#t~mem61| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:34:20,850 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork0_dequeue_#t~mem51| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:34:20,850 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork0_#t~mem61| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:34:20,850 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork0_#t~ret60| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:34:20,850 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork0_#t~mem61| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:34:20,850 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork0_#t~ret60| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:34:20,851 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork0_#t~mem61| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:34:20,851 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork0_#t~mem61| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:34:20,851 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork0_#t~ret60| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:34:20,851 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork0_#t~ret60| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:34:20,851 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork0_reach_error_#t~nondet2.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:34:20,851 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork0_reach_error_#t~nondet2.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:34:20,852 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork0_reach_error_#t~nondet2.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:34:20,852 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork0_reach_error_#t~nondet2.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:34:20,856 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork0_reach_error_#t~nondet2.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:34:20,857 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork0_#t~nondet57| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:34:20,857 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork0_#t~ret59| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:34:20,857 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:34:20,857 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:34:20,858 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork0_dequeue_#t~mem51| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:34:20,858 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork0_dequeue_#t~mem50| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:34:20,858 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork0_dequeue_#t~post52| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:34:20,858 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork0_reach_error_#t~nondet2.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:34:20,858 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork0_empty_~q.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:34:20,858 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork0_dequeue_#t~post49| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:34:20,859 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork0_empty_#t~mem34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:34:20,859 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork0_empty_#t~mem33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:34:20,859 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork0_empty_~q.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:34:20,860 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork0_#t~mem61| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:34:20,864 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork0_dequeue_#in~q.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:34:20,864 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork0_dequeue_~q.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:34:20,864 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork0_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:34:20,864 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork0_dequeue_#t~mem48| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:34:20,865 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork0_dequeue_#t~mem47| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:34:20,866 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork0_dequeue_#t~mem46| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:34:20,867 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork0_empty_#in~q.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:34:20,868 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork0_empty_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:34:20,868 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork0_dequeue_~q.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:34:20,868 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork0_empty_#in~q.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:34:20,868 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork0_#t~ret60| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:34:20,869 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork0_dequeue_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:34:20,869 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork0_#t~post58| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:34:20,869 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork0_empty_#t~nondet35| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:34:20,869 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork0_dequeue_~x~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:34:20,870 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:34:20,870 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork0_dequeue_#in~q.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:34:20,870 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:34:20,879 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork1_enqueue_#t~post45| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:34:20,879 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork1_enqueue_#t~mem40| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:34:20,879 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork1_enqueue_~q.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:34:20,880 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork1_enqueue_#t~post42| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:34:20,880 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork1_enqueue_#t~mem44| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:34:20,880 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork1_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:34:20,880 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork1_enqueue_#in~q.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:34:20,880 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork1_#t~ret56| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:34:20,880 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork1_enqueue_#t~mem43| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:34:20,881 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork1_enqueue_#t~mem41| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:34:20,881 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork1_enqueue_#in~x| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:34:20,882 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:34:20,882 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:34:20,883 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork1_~value~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:34:20,883 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork1_enqueue_~x not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:34:20,883 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork1_#t~post54| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:34:20,883 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork1_enqueue_~q.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:34:20,883 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:34:20,883 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:34:20,883 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork1_enqueue_#in~q.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:34:20,884 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork1_#t~nondet53| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:34:20,884 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork1_enqueue_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:34:20,884 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork1_#t~nondet55| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:34:20,898 INFO L149 ThreadInstanceAdder]: Constructed 4 joinOtherThreadTransitions. [2020-10-21 22:34:20,913 INFO L253 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2020-10-21 22:34:20,932 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-21 22:34:20,932 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-21 22:34:20,932 INFO L379 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-21 22:34:20,932 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-21 22:34:20,932 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-21 22:34:20,933 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-21 22:34:20,933 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-21 22:34:20,933 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-21 22:34:20,950 INFO L137 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2020-10-21 22:34:20,950 INFO L144 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 208 places, 218 transitions, 458 flow [2020-10-21 22:34:20,953 INFO L110 LiptonReduction]: Starting Lipton reduction on Petri net that has 208 places, 218 transitions, 458 flow [2020-10-21 22:34:20,955 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 208 places, 218 transitions, 458 flow [2020-10-21 22:34:21,047 INFO L129 PetriNetUnfolder]: 16/218 cut-off events. [2020-10-21 22:34:21,047 INFO L130 PetriNetUnfolder]: For 4/4 co-relation queries the response was YES. [2020-10-21 22:34:21,055 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 22:34:21,065 INFO L116 LiptonReduction]: Number of co-enabled transitions 10000 [2020-10-21 22:34:23,840 WARN L193 SmtUtils]: Spent 140.00 ms on a formula simplification that was a NOOP. DAG size: 96 [2020-10-21 22:34:23,985 WARN L193 SmtUtils]: Spent 140.00 ms on a formula simplification that was a NOOP. DAG size: 92 [2020-10-21 22:34:24,483 WARN L193 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 82 [2020-10-21 22:34:25,066 WARN L193 SmtUtils]: Spent 473.00 ms on a formula simplification. DAG size of input: 118 DAG size of output: 108 [2020-10-21 22:34:25,280 WARN L193 SmtUtils]: Spent 209.00 ms on a formula simplification that was a NOOP. DAG size: 104 [2020-10-21 22:34:27,300 WARN L193 SmtUtils]: Spent 1.94 s on a formula simplification. DAG size of input: 172 DAG size of output: 166 [2020-10-21 22:34:28,199 WARN L193 SmtUtils]: Spent 888.00 ms on a formula simplification that was a NOOP. DAG size: 156 [2020-10-21 22:34:29,574 WARN L193 SmtUtils]: Spent 1.35 s on a formula simplification. DAG size of input: 167 DAG size of output: 161 [2020-10-21 22:34:30,298 WARN L193 SmtUtils]: Spent 721.00 ms on a formula simplification that was a NOOP. DAG size: 161 [2020-10-21 22:34:32,684 WARN L193 SmtUtils]: Spent 2.35 s on a formula simplification. DAG size of input: 183 DAG size of output: 178 [2020-10-21 22:34:33,437 WARN L193 SmtUtils]: Spent 748.00 ms on a formula simplification that was a NOOP. DAG size: 174 [2020-10-21 22:34:33,463 INFO L131 LiptonReduction]: Checked pairs total: 25000 [2020-10-21 22:34:33,464 INFO L133 LiptonReduction]: Total number of compositions: 203 [2020-10-21 22:34:33,471 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 53 places, 55 transitions, 132 flow [2020-10-21 22:34:33,517 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 716 states. [2020-10-21 22:34:33,520 INFO L276 IsEmpty]: Start isEmpty. Operand 716 states. [2020-10-21 22:34:33,526 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 2 [2020-10-21 22:34:33,526 INFO L414 BasicCegarLoop]: Found error trace [2020-10-21 22:34:33,527 INFO L422 BasicCegarLoop]: trace histogram [1] [2020-10-21 22:34:33,527 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-21 22:34:33,533 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-21 22:34:33,534 INFO L82 PathProgramCache]: Analyzing trace with hash 870, now seen corresponding path program 1 times [2020-10-21 22:34:33,544 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-21 22:34:33,545 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2035969015] [2020-10-21 22:34:33,545 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-21 22:34:33,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-21 22:34:33,676 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 22:34:33,677 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2035969015] [2020-10-21 22:34:33,678 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-21 22:34:33,678 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [0] imperfect sequences [] total 0 [2020-10-21 22:34:33,679 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [357848502] [2020-10-21 22:34:33,686 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-10-21 22:34:33,687 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-21 22:34:33,702 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-10-21 22:34:33,703 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-10-21 22:34:33,705 INFO L87 Difference]: Start difference. First operand 716 states. Second operand 2 states. [2020-10-21 22:34:33,756 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-21 22:34:33,757 INFO L93 Difference]: Finished difference Result 715 states and 1901 transitions. [2020-10-21 22:34:33,757 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-10-21 22:34:33,758 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 1 [2020-10-21 22:34:33,759 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-21 22:34:33,801 INFO L225 Difference]: With dead ends: 715 [2020-10-21 22:34:33,801 INFO L226 Difference]: Without dead ends: 524 [2020-10-21 22:34:33,804 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 22:34:33,831 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 524 states. [2020-10-21 22:34:33,891 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 524 to 524. [2020-10-21 22:34:33,892 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 524 states. [2020-10-21 22:34:33,902 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 524 states to 524 states and 1400 transitions. [2020-10-21 22:34:33,904 INFO L78 Accepts]: Start accepts. Automaton has 524 states and 1400 transitions. Word has length 1 [2020-10-21 22:34:33,907 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-21 22:34:33,907 INFO L481 AbstractCegarLoop]: Abstraction has 524 states and 1400 transitions. [2020-10-21 22:34:33,908 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-10-21 22:34:33,908 INFO L276 IsEmpty]: Start isEmpty. Operand 524 states and 1400 transitions. [2020-10-21 22:34:33,912 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2020-10-21 22:34:33,912 INFO L414 BasicCegarLoop]: Found error trace [2020-10-21 22:34:33,912 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-21 22:34:33,913 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-21 22:34:33,917 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-21 22:34:33,917 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-21 22:34:33,917 INFO L82 PathProgramCache]: Analyzing trace with hash 135778570, now seen corresponding path program 1 times [2020-10-21 22:34:33,918 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-21 22:34:33,918 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [976349519] [2020-10-21 22:34:33,918 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-21 22:34:34,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-21 22:34:34,118 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 22:34:34,119 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [976349519] [2020-10-21 22:34:34,119 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-21 22:34:34,120 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-21 22:34:34,120 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1736976813] [2020-10-21 22:34:34,122 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-21 22:34:34,123 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-21 22:34:34,123 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-21 22:34:34,123 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-21 22:34:34,124 INFO L87 Difference]: Start difference. First operand 524 states and 1400 transitions. Second operand 3 states. [2020-10-21 22:34:34,138 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-21 22:34:34,138 INFO L93 Difference]: Finished difference Result 236 states and 509 transitions. [2020-10-21 22:34:34,139 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-21 22:34:34,139 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 15 [2020-10-21 22:34:34,139 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-21 22:34:34,142 INFO L225 Difference]: With dead ends: 236 [2020-10-21 22:34:34,142 INFO L226 Difference]: Without dead ends: 212 [2020-10-21 22:34:34,144 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 22:34:34,147 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 212 states. [2020-10-21 22:34:34,170 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 212 to 212. [2020-10-21 22:34:34,170 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 212 states. [2020-10-21 22:34:34,171 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 212 states to 212 states and 464 transitions. [2020-10-21 22:34:34,171 INFO L78 Accepts]: Start accepts. Automaton has 212 states and 464 transitions. Word has length 15 [2020-10-21 22:34:34,172 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-21 22:34:34,172 INFO L481 AbstractCegarLoop]: Abstraction has 212 states and 464 transitions. [2020-10-21 22:34:34,172 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-21 22:34:34,176 INFO L276 IsEmpty]: Start isEmpty. Operand 212 states and 464 transitions. [2020-10-21 22:34:34,180 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2020-10-21 22:34:34,180 INFO L414 BasicCegarLoop]: Found error trace [2020-10-21 22:34:34,180 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 22:34:34,180 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-21 22:34:34,181 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-21 22:34:34,181 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-21 22:34:34,181 INFO L82 PathProgramCache]: Analyzing trace with hash -487135186, now seen corresponding path program 1 times [2020-10-21 22:34:34,181 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-21 22:34:34,182 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [562284126] [2020-10-21 22:34:34,182 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-21 22:34:34,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-21 22:34:34,303 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 22:34:34,306 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [562284126] [2020-10-21 22:34:34,306 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-21 22:34:34,307 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-21 22:34:34,307 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [929700818] [2020-10-21 22:34:34,307 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-21 22:34:34,307 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-21 22:34:34,308 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-21 22:34:34,308 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-21 22:34:34,308 INFO L87 Difference]: Start difference. First operand 212 states and 464 transitions. Second operand 3 states. [2020-10-21 22:34:34,328 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-21 22:34:34,328 INFO L93 Difference]: Finished difference Result 162 states and 327 transitions. [2020-10-21 22:34:34,332 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-21 22:34:34,332 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 19 [2020-10-21 22:34:34,332 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-21 22:34:34,334 INFO L225 Difference]: With dead ends: 162 [2020-10-21 22:34:34,334 INFO L226 Difference]: Without dead ends: 160 [2020-10-21 22:34:34,334 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 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 22:34:34,335 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 160 states. [2020-10-21 22:34:34,341 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 160 to 160. [2020-10-21 22:34:34,341 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 160 states. [2020-10-21 22:34:34,342 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 160 states to 160 states and 324 transitions. [2020-10-21 22:34:34,342 INFO L78 Accepts]: Start accepts. Automaton has 160 states and 324 transitions. Word has length 19 [2020-10-21 22:34:34,342 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-21 22:34:34,343 INFO L481 AbstractCegarLoop]: Abstraction has 160 states and 324 transitions. [2020-10-21 22:34:34,343 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-21 22:34:34,343 INFO L276 IsEmpty]: Start isEmpty. Operand 160 states and 324 transitions. [2020-10-21 22:34:34,344 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2020-10-21 22:34:34,344 INFO L414 BasicCegarLoop]: Found error trace [2020-10-21 22:34:34,344 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 22:34:34,344 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-21 22:34:34,345 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-21 22:34:34,345 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-21 22:34:34,345 INFO L82 PathProgramCache]: Analyzing trace with hash -2076929182, now seen corresponding path program 1 times [2020-10-21 22:34:34,345 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-21 22:34:34,345 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [671649200] [2020-10-21 22:34:34,346 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-21 22:34:34,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-21 22:34:34,398 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 22:34:34,398 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [671649200] [2020-10-21 22:34:34,398 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-21 22:34:34,399 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-21 22:34:34,399 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2016334646] [2020-10-21 22:34:34,399 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-21 22:34:34,399 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-21 22:34:34,400 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-21 22:34:34,400 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-21 22:34:34,400 INFO L87 Difference]: Start difference. First operand 160 states and 324 transitions. Second operand 3 states. [2020-10-21 22:34:34,420 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-21 22:34:34,421 INFO L93 Difference]: Finished difference Result 200 states and 398 transitions. [2020-10-21 22:34:34,421 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-21 22:34:34,422 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 20 [2020-10-21 22:34:34,422 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-21 22:34:34,423 INFO L225 Difference]: With dead ends: 200 [2020-10-21 22:34:34,423 INFO L226 Difference]: Without dead ends: 200 [2020-10-21 22:34:34,424 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 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 22:34:34,425 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 200 states. [2020-10-21 22:34:34,430 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 200 to 164. [2020-10-21 22:34:34,430 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 164 states. [2020-10-21 22:34:34,431 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 164 states to 164 states and 331 transitions. [2020-10-21 22:34:34,431 INFO L78 Accepts]: Start accepts. Automaton has 164 states and 331 transitions. Word has length 20 [2020-10-21 22:34:34,431 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-21 22:34:34,431 INFO L481 AbstractCegarLoop]: Abstraction has 164 states and 331 transitions. [2020-10-21 22:34:34,432 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-21 22:34:34,432 INFO L276 IsEmpty]: Start isEmpty. Operand 164 states and 331 transitions. [2020-10-21 22:34:34,437 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2020-10-21 22:34:34,437 INFO L414 BasicCegarLoop]: Found error trace [2020-10-21 22:34:34,442 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 22:34:34,442 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-21 22:34:34,442 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-21 22:34:34,443 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-21 22:34:34,443 INFO L82 PathProgramCache]: Analyzing trace with hash -1915648921, now seen corresponding path program 1 times [2020-10-21 22:34:34,443 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-21 22:34:34,443 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [799244489] [2020-10-21 22:34:34,443 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-21 22:34:34,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-21 22:34:34,561 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 22:34:34,561 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [799244489] [2020-10-21 22:34:34,562 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [805840454] [2020-10-21 22:34:34,562 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 22:34:34,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-21 22:34:34,685 INFO L263 TraceCheckSpWp]: Trace formula consists of 216 conjuncts, 3 conjunts are in the unsatisfiable core [2020-10-21 22:34:34,692 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-21 22:34:34,746 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 22:34:34,747 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-10-21 22:34:34,747 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 5 [2020-10-21 22:34:34,747 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1937071127] [2020-10-21 22:34:34,748 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-21 22:34:34,748 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-21 22:34:34,748 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-21 22:34:34,748 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2020-10-21 22:34:34,749 INFO L87 Difference]: Start difference. First operand 164 states and 331 transitions. Second operand 5 states. [2020-10-21 22:34:34,794 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-21 22:34:34,794 INFO L93 Difference]: Finished difference Result 240 states and 472 transitions. [2020-10-21 22:34:34,796 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-21 22:34:34,797 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 27 [2020-10-21 22:34:34,797 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-21 22:34:34,800 INFO L225 Difference]: With dead ends: 240 [2020-10-21 22:34:34,800 INFO L226 Difference]: Without dead ends: 240 [2020-10-21 22:34:34,801 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 27 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 22:34:34,802 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 240 states. [2020-10-21 22:34:34,810 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 240 to 204. [2020-10-21 22:34:34,811 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 204 states. [2020-10-21 22:34:34,812 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 204 states to 204 states and 405 transitions. [2020-10-21 22:34:34,812 INFO L78 Accepts]: Start accepts. Automaton has 204 states and 405 transitions. Word has length 27 [2020-10-21 22:34:34,812 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-21 22:34:34,812 INFO L481 AbstractCegarLoop]: Abstraction has 204 states and 405 transitions. [2020-10-21 22:34:34,812 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-21 22:34:34,812 INFO L276 IsEmpty]: Start isEmpty. Operand 204 states and 405 transitions. [2020-10-21 22:34:34,814 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2020-10-21 22:34:34,814 INFO L414 BasicCegarLoop]: Found error trace [2020-10-21 22:34:34,814 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 22:34:35,027 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,2 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-21 22:34:35,028 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-21 22:34:35,028 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-21 22:34:35,028 INFO L82 PathProgramCache]: Analyzing trace with hash -1084664894, now seen corresponding path program 2 times [2020-10-21 22:34:35,029 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-21 22:34:35,029 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1870513263] [2020-10-21 22:34:35,029 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-21 22:34:35,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-21 22:34:35,160 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 22:34:35,161 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1870513263] [2020-10-21 22:34:35,161 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1303618769] [2020-10-21 22:34:35,161 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 22:34:35,367 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2020-10-21 22:34:35,368 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-10-21 22:34:35,370 INFO L263 TraceCheckSpWp]: Trace formula consists of 251 conjuncts, 4 conjunts are in the unsatisfiable core [2020-10-21 22:34:35,372 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-21 22:34:35,401 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-21 22:34:35,402 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-10-21 22:34:35,402 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 6 [2020-10-21 22:34:35,402 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [127495029] [2020-10-21 22:34:35,404 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-21 22:34:35,404 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-21 22:34:35,404 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-21 22:34:35,405 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2020-10-21 22:34:35,405 INFO L87 Difference]: Start difference. First operand 204 states and 405 transitions. Second operand 6 states. [2020-10-21 22:34:35,449 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-21 22:34:35,449 INFO L93 Difference]: Finished difference Result 280 states and 546 transitions. [2020-10-21 22:34:35,453 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-21 22:34:35,453 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 34 [2020-10-21 22:34:35,454 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-21 22:34:35,455 INFO L225 Difference]: With dead ends: 280 [2020-10-21 22:34:35,455 INFO L226 Difference]: Without dead ends: 280 [2020-10-21 22:34:35,456 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 34 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 22:34:35,457 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 280 states. [2020-10-21 22:34:35,463 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 280 to 244. [2020-10-21 22:34:35,464 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 244 states. [2020-10-21 22:34:35,465 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 244 states to 244 states and 479 transitions. [2020-10-21 22:34:35,465 INFO L78 Accepts]: Start accepts. Automaton has 244 states and 479 transitions. Word has length 34 [2020-10-21 22:34:35,466 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-21 22:34:35,466 INFO L481 AbstractCegarLoop]: Abstraction has 244 states and 479 transitions. [2020-10-21 22:34:35,466 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-21 22:34:35,466 INFO L276 IsEmpty]: Start isEmpty. Operand 244 states and 479 transitions. [2020-10-21 22:34:35,470 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2020-10-21 22:34:35,470 INFO L414 BasicCegarLoop]: Found error trace [2020-10-21 22:34:35,470 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 22:34:35,685 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-21 22:34:35,685 INFO L429 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-21 22:34:35,686 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-21 22:34:35,686 INFO L82 PathProgramCache]: Analyzing trace with hash 407214087, now seen corresponding path program 3 times [2020-10-21 22:34:35,686 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-21 22:34:35,686 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1647022302] [2020-10-21 22:34:35,686 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-21 22:34:35,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-21 22:34:35,767 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 22:34:35,767 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1647022302] [2020-10-21 22:34:35,768 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1025800042] [2020-10-21 22:34:35,768 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 22:34:36,395 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 4 check-sat command(s) [2020-10-21 22:34:36,396 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-10-21 22:34:36,400 INFO L263 TraceCheckSpWp]: Trace formula consists of 286 conjuncts, 5 conjunts are in the unsatisfiable core [2020-10-21 22:34:36,402 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-21 22:34:36,431 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 22:34:36,432 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-10-21 22:34:36,432 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 7 [2020-10-21 22:34:36,432 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1085449047] [2020-10-21 22:34:36,433 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-21 22:34:36,433 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-21 22:34:36,433 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-21 22:34:36,434 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2020-10-21 22:34:36,434 INFO L87 Difference]: Start difference. First operand 244 states and 479 transitions. Second operand 7 states. [2020-10-21 22:34:36,498 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-21 22:34:36,498 INFO L93 Difference]: Finished difference Result 320 states and 620 transitions. [2020-10-21 22:34:36,500 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-21 22:34:36,500 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 41 [2020-10-21 22:34:36,500 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-21 22:34:36,502 INFO L225 Difference]: With dead ends: 320 [2020-10-21 22:34:36,502 INFO L226 Difference]: Without dead ends: 320 [2020-10-21 22:34:36,503 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 41 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 22:34:36,504 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 320 states. [2020-10-21 22:34:36,510 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 320 to 284. [2020-10-21 22:34:36,511 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 284 states. [2020-10-21 22:34:36,512 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 284 states to 284 states and 553 transitions. [2020-10-21 22:34:36,512 INFO L78 Accepts]: Start accepts. Automaton has 284 states and 553 transitions. Word has length 41 [2020-10-21 22:34:36,512 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-21 22:34:36,513 INFO L481 AbstractCegarLoop]: Abstraction has 284 states and 553 transitions. [2020-10-21 22:34:36,513 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-21 22:34:36,513 INFO L276 IsEmpty]: Start isEmpty. Operand 284 states and 553 transitions. [2020-10-21 22:34:36,514 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2020-10-21 22:34:36,514 INFO L414 BasicCegarLoop]: Found error trace [2020-10-21 22:34:36,514 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 22:34:36,728 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,4 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-21 22:34:36,729 INFO L429 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-21 22:34:36,729 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-21 22:34:36,729 INFO L82 PathProgramCache]: Analyzing trace with hash -311038942, now seen corresponding path program 4 times [2020-10-21 22:34:36,730 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-21 22:34:36,730 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [686229733] [2020-10-21 22:34:36,731 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-21 22:34:36,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-21 22:34:36,829 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 22:34:36,830 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [686229733] [2020-10-21 22:34:36,830 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1903739669] [2020-10-21 22:34:36,830 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 22:34:37,048 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2020-10-21 22:34:37,048 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-10-21 22:34:37,050 INFO L263 TraceCheckSpWp]: Trace formula consists of 321 conjuncts, 6 conjunts are in the unsatisfiable core [2020-10-21 22:34:37,053 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-21 22:34:37,085 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 22:34:37,085 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-10-21 22:34:37,086 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 8 [2020-10-21 22:34:37,086 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1486353764] [2020-10-21 22:34:37,086 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-21 22:34:37,087 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-21 22:34:37,087 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-21 22:34:37,087 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=28, Unknown=0, NotChecked=0, Total=56 [2020-10-21 22:34:37,087 INFO L87 Difference]: Start difference. First operand 284 states and 553 transitions. Second operand 8 states. [2020-10-21 22:34:37,136 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-21 22:34:37,137 INFO L93 Difference]: Finished difference Result 360 states and 694 transitions. [2020-10-21 22:34:37,137 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-21 22:34:37,138 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 48 [2020-10-21 22:34:37,138 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-21 22:34:37,140 INFO L225 Difference]: With dead ends: 360 [2020-10-21 22:34:37,140 INFO L226 Difference]: Without dead ends: 360 [2020-10-21 22:34:37,141 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 48 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 22:34:37,142 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 360 states. [2020-10-21 22:34:37,148 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 360 to 324. [2020-10-21 22:34:37,149 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 324 states. [2020-10-21 22:34:37,150 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 324 states to 324 states and 627 transitions. [2020-10-21 22:34:37,150 INFO L78 Accepts]: Start accepts. Automaton has 324 states and 627 transitions. Word has length 48 [2020-10-21 22:34:37,151 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-21 22:34:37,151 INFO L481 AbstractCegarLoop]: Abstraction has 324 states and 627 transitions. [2020-10-21 22:34:37,151 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-21 22:34:37,151 INFO L276 IsEmpty]: Start isEmpty. Operand 324 states and 627 transitions. [2020-10-21 22:34:37,152 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2020-10-21 22:34:37,152 INFO L414 BasicCegarLoop]: Found error trace [2020-10-21 22:34:37,152 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 22:34:37,366 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,5 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-21 22:34:37,367 INFO L429 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-21 22:34:37,367 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-21 22:34:37,367 INFO L82 PathProgramCache]: Analyzing trace with hash -1178676313, now seen corresponding path program 5 times [2020-10-21 22:34:37,367 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-21 22:34:37,367 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [449107362] [2020-10-21 22:34:37,368 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-21 22:34:37,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-21 22:34:37,468 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 22:34:37,468 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [449107362] [2020-10-21 22:34:37,469 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1454050791] [2020-10-21 22:34:37,469 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 22:34:37,640 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 4 check-sat command(s) [2020-10-21 22:34:37,640 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-10-21 22:34:37,642 INFO L263 TraceCheckSpWp]: Trace formula consists of 142 conjuncts, 37 conjunts are in the unsatisfiable core [2020-10-21 22:34:37,646 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-21 22:34:37,703 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 22:34:37,704 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-10-21 22:34:37,707 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-21 22:34:37,707 INFO L545 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-10-21 22:34:37,708 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:13, output treesize:9 [2020-10-21 22:34:37,762 INFO L350 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-10-21 22:34:37,763 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 22:34:37,764 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-10-21 22:34:37,798 INFO L625 ElimStorePlain]: treesize reduction 24, result has 62.5 percent of original size [2020-10-21 22:34:37,800 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-21 22:34:37,808 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 22:34:37,808 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:30, output treesize:35 [2020-10-21 22:34:37,907 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-21 22:34:37,943 INFO L173 IndexEqualityManager]: detected equality via solver [2020-10-21 22:34:37,946 INFO L173 IndexEqualityManager]: detected equality via solver [2020-10-21 22:34:37,964 INFO L350 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-10-21 22:34:37,965 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 22:34:37,966 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-10-21 22:34:37,991 INFO L350 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-10-21 22:34:37,991 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 22:34:37,993 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-21 22:34:37,994 INFO L545 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-10-21 22:34:38,085 INFO L625 ElimStorePlain]: treesize reduction 50, result has 64.8 percent of original size [2020-10-21 22:34:38,093 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 22:34:38,094 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:96, output treesize:48 [2020-10-21 22:34:38,143 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-21 22:34:38,162 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 22:34:38,163 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-10-21 22:34:38,169 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-10-21 22:34:38,173 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 22:34:38,174 INFO L545 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-10-21 22:34:38,208 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-21 22:34:38,210 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 22:34:38,210 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:78, output treesize:48 [2020-10-21 22:34:38,289 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 22:34:38,290 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-10-21 22:34:38,301 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-21 22:34:38,302 INFO L545 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-10-21 22:34:38,302 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:47, output treesize:34 [2020-10-21 22:34:38,391 INFO L350 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-10-21 22:34:38,392 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 32 treesize of output 75 [2020-10-21 22:34:38,393 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-10-21 22:34:38,426 INFO L625 ElimStorePlain]: treesize reduction 44, result has 49.4 percent of original size [2020-10-21 22:34:38,436 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 22:34:38,437 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 5 variables, input treesize:47, output treesize:9 [2020-10-21 22:34:38,482 INFO L350 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-10-21 22:34:38,482 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 22:34:38,483 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-10-21 22:34:38,503 INFO L625 ElimStorePlain]: treesize reduction 30, result has 44.4 percent of original size [2020-10-21 22:34:38,505 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 22:34:38,505 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:34, output treesize:9 [2020-10-21 22:34:38,542 INFO L350 Elim1Store]: treesize reduction 29, result has 23.7 percent of original size [2020-10-21 22:34:38,542 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 22:34:38,543 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-10-21 22:34:38,549 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-21 22:34:38,550 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 22:34:38,550 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:25, output treesize:9 [2020-10-21 22:34:38,561 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 22:34:38,562 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-10-21 22:34:38,562 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 11] total 17 [2020-10-21 22:34:38,562 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [750085786] [2020-10-21 22:34:38,563 INFO L461 AbstractCegarLoop]: Interpolant automaton has 17 states [2020-10-21 22:34:38,563 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-21 22:34:38,563 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2020-10-21 22:34:38,564 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=214, Unknown=0, NotChecked=0, Total=272 [2020-10-21 22:34:38,564 INFO L87 Difference]: Start difference. First operand 324 states and 627 transitions. Second operand 17 states. [2020-10-21 22:34:41,738 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-21 22:34:41,740 INFO L93 Difference]: Finished difference Result 990 states and 1887 transitions. [2020-10-21 22:34:41,741 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 46 states. [2020-10-21 22:34:41,741 INFO L78 Accepts]: Start accepts. Automaton has 17 states. Word has length 55 [2020-10-21 22:34:41,742 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-21 22:34:41,748 INFO L225 Difference]: With dead ends: 990 [2020-10-21 22:34:41,748 INFO L226 Difference]: Without dead ends: 990 [2020-10-21 22:34:41,750 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 140 GetRequests, 86 SyntacticMatches, 0 SemanticMatches, 54 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 935 ImplicationChecksByTransitivity, 2.2s TimeCoverageRelationStatistics Valid=738, Invalid=2342, Unknown=0, NotChecked=0, Total=3080 [2020-10-21 22:34:41,752 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 990 states. [2020-10-21 22:34:41,767 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 990 to 640. [2020-10-21 22:34:41,767 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 640 states. [2020-10-21 22:34:41,769 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 640 states to 640 states and 1212 transitions. [2020-10-21 22:34:41,770 INFO L78 Accepts]: Start accepts. Automaton has 640 states and 1212 transitions. Word has length 55 [2020-10-21 22:34:41,770 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-21 22:34:41,770 INFO L481 AbstractCegarLoop]: Abstraction has 640 states and 1212 transitions. [2020-10-21 22:34:41,770 INFO L482 AbstractCegarLoop]: Interpolant automaton has 17 states. [2020-10-21 22:34:41,770 INFO L276 IsEmpty]: Start isEmpty. Operand 640 states and 1212 transitions. [2020-10-21 22:34:41,772 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2020-10-21 22:34:41,772 INFO L414 BasicCegarLoop]: Found error trace [2020-10-21 22:34:41,772 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 4, 4, 4, 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 22:34:41,987 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,6 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-21 22:34:41,988 INFO L429 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-21 22:34:41,988 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-21 22:34:41,988 INFO L82 PathProgramCache]: Analyzing trace with hash 566241250, now seen corresponding path program 1 times [2020-10-21 22:34:41,988 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-21 22:34:41,989 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [147947382] [2020-10-21 22:34:41,989 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-21 22:34:42,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-21 22:34:42,104 INFO L134 CoverageAnalysis]: Checked inductivity of 96 backedges. 0 proven. 96 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-21 22:34:42,105 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [147947382] [2020-10-21 22:34:42,105 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1470928712] [2020-10-21 22:34:42,105 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY 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 22:34:42,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-21 22:34:42,227 INFO L263 TraceCheckSpWp]: Trace formula consists of 393 conjuncts, 8 conjunts are in the unsatisfiable core [2020-10-21 22:34:42,230 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-21 22:34:42,255 INFO L134 CoverageAnalysis]: Checked inductivity of 96 backedges. 0 proven. 96 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-21 22:34:42,256 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-10-21 22:34:42,256 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 10 [2020-10-21 22:34:42,256 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1130930691] [2020-10-21 22:34:42,257 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-21 22:34:42,257 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-21 22:34:42,257 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-21 22:34:42,258 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=45, Unknown=0, NotChecked=0, Total=90 [2020-10-21 22:34:42,258 INFO L87 Difference]: Start difference. First operand 640 states and 1212 transitions. Second operand 10 states. [2020-10-21 22:34:42,360 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-21 22:34:42,361 INFO L93 Difference]: Finished difference Result 828 states and 1557 transitions. [2020-10-21 22:34:42,365 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-21 22:34:42,365 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 64 [2020-10-21 22:34:42,365 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-21 22:34:42,369 INFO L225 Difference]: With dead ends: 828 [2020-10-21 22:34:42,369 INFO L226 Difference]: Without dead ends: 828 [2020-10-21 22:34:42,369 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 72 GetRequests, 64 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=45, Invalid=45, Unknown=0, NotChecked=0, Total=90 [2020-10-21 22:34:42,370 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 828 states. [2020-10-21 22:34:42,383 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 828 to 740. [2020-10-21 22:34:42,383 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 740 states. [2020-10-21 22:34:42,386 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 740 states to 740 states and 1395 transitions. [2020-10-21 22:34:42,386 INFO L78 Accepts]: Start accepts. Automaton has 740 states and 1395 transitions. Word has length 64 [2020-10-21 22:34:42,386 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-21 22:34:42,386 INFO L481 AbstractCegarLoop]: Abstraction has 740 states and 1395 transitions. [2020-10-21 22:34:42,387 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-21 22:34:42,387 INFO L276 IsEmpty]: Start isEmpty. Operand 740 states and 1395 transitions. [2020-10-21 22:34:42,388 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2020-10-21 22:34:42,389 INFO L414 BasicCegarLoop]: Found error trace [2020-10-21 22:34:42,389 INFO L422 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 5, 5, 5, 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 22:34:42,602 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,7 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-21 22:34:42,603 INFO L429 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-21 22:34:42,603 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-21 22:34:42,603 INFO L82 PathProgramCache]: Analyzing trace with hash 1510494575, now seen corresponding path program 2 times [2020-10-21 22:34:42,604 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-21 22:34:42,604 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1065376934] [2020-10-21 22:34:42,605 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-21 22:34:42,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-21 22:34:42,729 INFO L134 CoverageAnalysis]: Checked inductivity of 135 backedges. 0 proven. 135 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-21 22:34:42,730 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1065376934] [2020-10-21 22:34:42,730 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [957250769] [2020-10-21 22:34:42,730 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 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 22:34:42,967 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2020-10-21 22:34:42,967 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-10-21 22:34:42,970 INFO L263 TraceCheckSpWp]: Trace formula consists of 428 conjuncts, 9 conjunts are in the unsatisfiable core [2020-10-21 22:34:42,974 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-21 22:34:42,999 INFO L134 CoverageAnalysis]: Checked inductivity of 135 backedges. 0 proven. 135 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-21 22:34:42,999 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-10-21 22:34:43,000 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10] total 11 [2020-10-21 22:34:43,000 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1537100856] [2020-10-21 22:34:43,000 INFO L461 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-10-21 22:34:43,001 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-21 22:34:43,001 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-10-21 22:34:43,001 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=55, Unknown=0, NotChecked=0, Total=110 [2020-10-21 22:34:43,001 INFO L87 Difference]: Start difference. First operand 740 states and 1395 transitions. Second operand 11 states. [2020-10-21 22:34:43,093 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-21 22:34:43,093 INFO L93 Difference]: Finished difference Result 928 states and 1740 transitions. [2020-10-21 22:34:43,094 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-21 22:34:43,094 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 71 [2020-10-21 22:34:43,094 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-21 22:34:43,100 INFO L225 Difference]: With dead ends: 928 [2020-10-21 22:34:43,101 INFO L226 Difference]: Without dead ends: 928 [2020-10-21 22:34:43,101 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 80 GetRequests, 71 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 22:34:43,104 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 928 states. [2020-10-21 22:34:43,120 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 928 to 840. [2020-10-21 22:34:43,120 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 840 states. [2020-10-21 22:34:43,123 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 840 states to 840 states and 1578 transitions. [2020-10-21 22:34:43,123 INFO L78 Accepts]: Start accepts. Automaton has 840 states and 1578 transitions. Word has length 71 [2020-10-21 22:34:43,123 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-21 22:34:43,124 INFO L481 AbstractCegarLoop]: Abstraction has 840 states and 1578 transitions. [2020-10-21 22:34:43,124 INFO L482 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-10-21 22:34:43,124 INFO L276 IsEmpty]: Start isEmpty. Operand 840 states and 1578 transitions. [2020-10-21 22:34:43,126 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2020-10-21 22:34:43,126 INFO L414 BasicCegarLoop]: Found error trace [2020-10-21 22:34:43,126 INFO L422 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 5, 5, 5, 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 22:34:43,339 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,8 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-21 22:34:43,340 INFO L429 AbstractCegarLoop]: === Iteration 12 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-21 22:34:43,340 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-21 22:34:43,340 INFO L82 PathProgramCache]: Analyzing trace with hash 478039825, now seen corresponding path program 3 times [2020-10-21 22:34:43,340 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-21 22:34:43,340 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1445470373] [2020-10-21 22:34:43,341 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-21 22:34:43,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-21 22:34:43,480 INFO L134 CoverageAnalysis]: Checked inductivity of 177 backedges. 0 proven. 177 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-21 22:34:43,480 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1445470373] [2020-10-21 22:34:43,481 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [65455010] [2020-10-21 22:34:43,481 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 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 22:34:44,408 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 4 check-sat command(s) [2020-10-21 22:34:44,409 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-10-21 22:34:44,415 INFO L263 TraceCheckSpWp]: Trace formula consists of 287 conjuncts, 31 conjunts are in the unsatisfiable core [2020-10-21 22:34:44,418 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-21 22:34:44,437 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 22:34:44,444 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-10-21 22:34:44,596 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 24 [2020-10-21 22:34:44,597 INFO L625 ElimStorePlain]: treesize reduction 1056, result has 2.3 percent of original size [2020-10-21 22:34:44,601 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 22:34:44,601 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 6 variables, input treesize:26, output treesize:4 [2020-10-21 22:34:44,656 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 22:34:44,657 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-10-21 22:34:44,661 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-21 22:34:44,662 INFO L545 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-10-21 22:34:44,662 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:18, output treesize:14 [2020-10-21 22:34:44,715 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 22:34:44,715 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-10-21 22:34:44,722 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-21 22:34:44,725 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 22:34:44,725 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 5 variables, input treesize:29, output treesize:9 [2020-10-21 22:34:44,771 INFO L173 IndexEqualityManager]: detected equality via solver [2020-10-21 22:34:44,790 INFO L350 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-10-21 22:34:44,791 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 22:34:44,792 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-10-21 22:34:44,822 INFO L625 ElimStorePlain]: treesize reduction 30, result has 50.0 percent of original size [2020-10-21 22:34:44,827 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 22:34:44,827 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:40, output treesize:16 [2020-10-21 22:34:44,856 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-10-21 22:34:44,858 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 22:34:44,859 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-10-21 22:34:44,871 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-21 22:34:44,873 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 22:34:44,873 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:31, output treesize:16 [2020-10-21 22:34:44,883 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 22:34:44,886 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-10-21 22:34:44,888 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-21 22:34:44,888 INFO L545 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-10-21 22:34:44,889 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:19, output treesize:1 [2020-10-21 22:34:44,896 INFO L134 CoverageAnalysis]: Checked inductivity of 177 backedges. 46 proven. 35 refuted. 0 times theorem prover too weak. 96 trivial. 0 not checked. [2020-10-21 22:34:44,897 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-10-21 22:34:44,897 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 7] total 17 [2020-10-21 22:34:44,897 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1601151533] [2020-10-21 22:34:44,897 INFO L461 AbstractCegarLoop]: Interpolant automaton has 17 states [2020-10-21 22:34:44,898 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-21 22:34:44,898 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2020-10-21 22:34:44,898 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=73, Invalid=199, Unknown=0, NotChecked=0, Total=272 [2020-10-21 22:34:44,898 INFO L87 Difference]: Start difference. First operand 840 states and 1578 transitions. Second operand 17 states. [2020-10-21 22:34:46,288 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-21 22:34:46,288 INFO L93 Difference]: Finished difference Result 948 states and 1754 transitions. [2020-10-21 22:34:46,289 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2020-10-21 22:34:46,289 INFO L78 Accepts]: Start accepts. Automaton has 17 states. Word has length 79 [2020-10-21 22:34:46,289 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-21 22:34:46,294 INFO L225 Difference]: With dead ends: 948 [2020-10-21 22:34:46,294 INFO L226 Difference]: Without dead ends: 948 [2020-10-21 22:34:46,295 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 147 GetRequests, 103 SyntacticMatches, 0 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 542 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=634, Invalid=1436, Unknown=0, NotChecked=0, Total=2070 [2020-10-21 22:34:46,297 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 948 states. [2020-10-21 22:34:46,310 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 948 to 648. [2020-10-21 22:34:46,310 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 648 states. [2020-10-21 22:34:46,312 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 648 states to 648 states and 1214 transitions. [2020-10-21 22:34:46,312 INFO L78 Accepts]: Start accepts. Automaton has 648 states and 1214 transitions. Word has length 79 [2020-10-21 22:34:46,312 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-21 22:34:46,312 INFO L481 AbstractCegarLoop]: Abstraction has 648 states and 1214 transitions. [2020-10-21 22:34:46,312 INFO L482 AbstractCegarLoop]: Interpolant automaton has 17 states. [2020-10-21 22:34:46,312 INFO L276 IsEmpty]: Start isEmpty. Operand 648 states and 1214 transitions. [2020-10-21 22:34:46,314 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2020-10-21 22:34:46,314 INFO L414 BasicCegarLoop]: Found error trace [2020-10-21 22:34:46,314 INFO L422 BasicCegarLoop]: trace histogram [9, 9, 9, 9, 5, 5, 5, 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 22:34:46,529 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2020-10-21 22:34:46,530 INFO L429 AbstractCegarLoop]: === Iteration 13 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-21 22:34:46,530 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-21 22:34:46,531 INFO L82 PathProgramCache]: Analyzing trace with hash -1195402201, now seen corresponding path program 4 times [2020-10-21 22:34:46,531 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-21 22:34:46,531 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [878879139] [2020-10-21 22:34:46,532 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-21 22:34:46,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-21 22:34:46,683 INFO L134 CoverageAnalysis]: Checked inductivity of 227 backedges. 0 proven. 227 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-21 22:34:46,683 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [878879139] [2020-10-21 22:34:46,684 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1807453741] [2020-10-21 22:34:46,684 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 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 22:34:49,411 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2020-10-21 22:34:49,411 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-10-21 22:34:49,430 INFO L263 TraceCheckSpWp]: Trace formula consists of 500 conjuncts, 11 conjunts are in the unsatisfiable core [2020-10-21 22:34:49,432 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-21 22:34:49,466 INFO L134 CoverageAnalysis]: Checked inductivity of 227 backedges. 0 proven. 227 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-21 22:34:49,467 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-10-21 22:34:49,467 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 12] total 13 [2020-10-21 22:34:49,467 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [969146833] [2020-10-21 22:34:49,468 INFO L461 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-10-21 22:34:49,468 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-21 22:34:49,468 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-10-21 22:34:49,468 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=78, Invalid=78, Unknown=0, NotChecked=0, Total=156 [2020-10-21 22:34:49,469 INFO L87 Difference]: Start difference. First operand 648 states and 1214 transitions. Second operand 13 states. [2020-10-21 22:34:49,563 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-21 22:34:49,563 INFO L93 Difference]: Finished difference Result 760 states and 1418 transitions. [2020-10-21 22:34:49,564 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-10-21 22:34:49,565 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 87 [2020-10-21 22:34:49,565 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-21 22:34:49,569 INFO L225 Difference]: With dead ends: 760 [2020-10-21 22:34:49,569 INFO L226 Difference]: Without dead ends: 760 [2020-10-21 22:34:49,569 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 98 GetRequests, 87 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=78, Invalid=78, Unknown=0, NotChecked=0, Total=156 [2020-10-21 22:34:49,571 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 760 states. [2020-10-21 22:34:49,582 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 760 to 708. [2020-10-21 22:34:49,582 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 708 states. [2020-10-21 22:34:49,584 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 708 states to 708 states and 1323 transitions. [2020-10-21 22:34:49,584 INFO L78 Accepts]: Start accepts. Automaton has 708 states and 1323 transitions. Word has length 87 [2020-10-21 22:34:49,585 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-21 22:34:49,585 INFO L481 AbstractCegarLoop]: Abstraction has 708 states and 1323 transitions. [2020-10-21 22:34:49,585 INFO L482 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-10-21 22:34:49,585 INFO L276 IsEmpty]: Start isEmpty. Operand 708 states and 1323 transitions. [2020-10-21 22:34:49,586 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2020-10-21 22:34:49,587 INFO L414 BasicCegarLoop]: Found error trace [2020-10-21 22:34:49,587 INFO L422 BasicCegarLoop]: trace histogram [10, 10, 10, 10, 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 22:34:49,800 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12,10 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-21 22:34:49,801 INFO L429 AbstractCegarLoop]: === Iteration 14 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-21 22:34:49,801 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-21 22:34:49,801 INFO L82 PathProgramCache]: Analyzing trace with hash -264208835, now seen corresponding path program 5 times [2020-10-21 22:34:49,801 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-21 22:34:49,802 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [33828507] [2020-10-21 22:34:49,802 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-21 22:34:49,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-21 22:34:50,023 INFO L134 CoverageAnalysis]: Checked inductivity of 285 backedges. 0 proven. 285 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-21 22:34:50,024 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [33828507] [2020-10-21 22:34:50,024 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1924246130] [2020-10-21 22:34:50,024 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 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 22:34:50,838 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 4 check-sat command(s) [2020-10-21 22:34:50,838 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-10-21 22:34:50,846 INFO L263 TraceCheckSpWp]: Trace formula consists of 215 conjuncts, 69 conjunts are in the unsatisfiable core [2020-10-21 22:34:50,851 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-21 22:34:50,875 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 22:34:50,875 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-10-21 22:34:50,878 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-21 22:34:50,878 INFO L545 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-10-21 22:34:50,878 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:13, output treesize:9 [2020-10-21 22:34:50,928 INFO L350 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-10-21 22:34:50,929 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 22:34:50,930 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-10-21 22:34:50,985 INFO L625 ElimStorePlain]: treesize reduction 24, result has 62.5 percent of original size [2020-10-21 22:34:50,987 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-21 22:34:50,991 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 22:34:50,991 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:30, output treesize:35 [2020-10-21 22:34:51,106 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-21 22:34:51,155 INFO L350 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-10-21 22:34:51,155 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 22:34:51,156 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-21 22:34:51,159 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-10-21 22:34:51,168 INFO L173 IndexEqualityManager]: detected equality via solver [2020-10-21 22:34:51,196 INFO L350 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-10-21 22:34:51,197 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 22:34:51,199 INFO L545 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-10-21 22:34:51,319 WARN L193 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 48 [2020-10-21 22:34:51,320 INFO L625 ElimStorePlain]: treesize reduction 50, result has 64.8 percent of original size [2020-10-21 22:34:51,323 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 22:34:51,323 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:96, output treesize:48 [2020-10-21 22:34:51,369 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-21 22:34:51,379 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-10-21 22:34:51,385 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 22:34:51,386 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-10-21 22:34:51,399 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 22:34:51,399 INFO L545 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-10-21 22:34:51,430 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-21 22:34:51,431 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 22:34:51,432 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:78, output treesize:48 [2020-10-21 22:34:51,493 INFO L375 QuantifierPusher]: Applying distributivity to a CONJUNCTION[3, 2, 5, 1] term [2020-10-21 22:34:51,494 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-21 22:34:51,510 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 25 treesize of output 15 [2020-10-21 22:34:51,512 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-10-21 22:34:51,536 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-21 22:34:51,540 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 34 treesize of output 18 [2020-10-21 22:34:51,541 INFO L545 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-10-21 22:34:51,562 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-21 22:34:51,569 INFO L545 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 2 dim-2 vars, End of recursive call: and 2 xjuncts. [2020-10-21 22:34:51,569 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:84, output treesize:35 [2020-10-21 22:34:51,609 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-21 22:34:51,657 INFO L350 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-10-21 22:34:51,658 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 22:34:51,659 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-21 22:34:51,661 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-10-21 22:34:51,669 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 22:34:51,670 INFO L545 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-10-21 22:34:51,777 WARN L193 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 44 [2020-10-21 22:34:51,778 INFO L625 ElimStorePlain]: treesize reduction 24, result has 77.4 percent of original size [2020-10-21 22:34:51,779 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-21 22:34:51,782 INFO L545 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: and 3 xjuncts. [2020-10-21 22:34:51,782 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:76, output treesize:60 [2020-10-21 22:34:51,877 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-21 22:34:51,904 INFO L350 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-10-21 22:34:51,905 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 22:34:51,905 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-21 22:34:51,906 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-10-21 22:34:51,918 INFO L173 IndexEqualityManager]: detected equality via solver [2020-10-21 22:34:51,937 INFO L350 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-10-21 22:34:51,938 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 22:34:51,939 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-10-21 22:34:51,940 INFO L545 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-10-21 22:34:52,047 WARN L193 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 50 [2020-10-21 22:34:52,048 INFO L625 ElimStorePlain]: treesize reduction 55, result has 64.1 percent of original size [2020-10-21 22:34:52,054 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 22:34:52,054 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:96, output treesize:48 [2020-10-21 22:34:52,110 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-21 22:34:52,128 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 22:34:52,128 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-10-21 22:34:52,136 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-10-21 22:34:52,140 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 22:34:52,141 INFO L545 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-10-21 22:34:52,176 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-21 22:34:52,178 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 22:34:52,178 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:78, output treesize:48 [2020-10-21 22:34:52,284 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 0 case distinctions, treesize of input 23 treesize of output 13 [2020-10-21 22:34:52,285 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-10-21 22:34:52,296 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-21 22:34:52,296 INFO L545 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-10-21 22:34:52,296 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:47, output treesize:34 [2020-10-21 22:34:52,345 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-10-21 22:34:52,347 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 22:34:52,348 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-10-21 22:34:52,372 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-21 22:34:52,374 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 22:34:52,374 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:54, output treesize:34 [2020-10-21 22:34:52,485 INFO L173 IndexEqualityManager]: detected equality via solver [2020-10-21 22:34:52,499 INFO L350 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-10-21 22:34:52,500 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 22:34:52,500 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-10-21 22:34:52,550 INFO L625 ElimStorePlain]: treesize reduction 30, result has 64.3 percent of original size [2020-10-21 22:34:52,557 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 22:34:52,558 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:64, output treesize:40 [2020-10-21 22:34:52,625 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-10-21 22:34:52,627 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 22:34:52,627 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-10-21 22:34:52,651 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-21 22:34:52,652 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 22:34:52,652 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:55, output treesize:40 [2020-10-21 22:34:52,730 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 34 treesize of output 18 [2020-10-21 22:34:52,730 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-10-21 22:34:52,742 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-21 22:34:52,743 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 22:34:52,744 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:58, output treesize:34 [2020-10-21 22:34:52,816 INFO L350 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-10-21 22:34:52,817 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 32 treesize of output 75 [2020-10-21 22:34:52,818 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-21 22:34:52,819 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-10-21 22:34:52,848 INFO L625 ElimStorePlain]: treesize reduction 44, result has 50.6 percent of original size [2020-10-21 22:34:52,851 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 22:34:52,851 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 5 variables, input treesize:49, output treesize:9 [2020-10-21 22:34:52,924 INFO L350 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-10-21 22:34:52,925 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 22:34:52,926 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-10-21 22:34:52,927 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-10-21 22:34:52,955 INFO L625 ElimStorePlain]: treesize reduction 35, result has 46.2 percent of original size [2020-10-21 22:34:52,956 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 22:34:52,956 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:34, output treesize:9 [2020-10-21 22:34:52,993 INFO L350 Elim1Store]: treesize reduction 29, result has 23.7 percent of original size [2020-10-21 22:34:52,994 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 22:34:52,994 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-10-21 22:34:53,005 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-21 22:34:53,006 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 22:34:53,006 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:25, output treesize:9 [2020-10-21 22:34:53,040 INFO L134 CoverageAnalysis]: Checked inductivity of 285 backedges. 218 proven. 23 refuted. 0 times theorem prover too weak. 44 trivial. 0 not checked. [2020-10-21 22:34:53,041 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-10-21 22:34:53,041 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 21] total 32 [2020-10-21 22:34:53,041 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2122044872] [2020-10-21 22:34:53,041 INFO L461 AbstractCegarLoop]: Interpolant automaton has 32 states [2020-10-21 22:34:53,042 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-21 22:34:53,042 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 32 interpolants. [2020-10-21 22:34:53,042 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=199, Invalid=793, Unknown=0, NotChecked=0, Total=992 [2020-10-21 22:34:53,043 INFO L87 Difference]: Start difference. First operand 708 states and 1323 transitions. Second operand 32 states. [2020-10-21 22:35:06,312 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-21 22:35:06,313 INFO L93 Difference]: Finished difference Result 2597 states and 4778 transitions. [2020-10-21 22:35:06,314 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 156 states. [2020-10-21 22:35:06,314 INFO L78 Accepts]: Start accepts. Automaton has 32 states. Word has length 95 [2020-10-21 22:35:06,314 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-21 22:35:06,324 INFO L225 Difference]: With dead ends: 2597 [2020-10-21 22:35:06,324 INFO L226 Difference]: Without dead ends: 2597 [2020-10-21 22:35:06,331 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 393 GetRequests, 219 SyntacticMatches, 1 SemanticMatches, 173 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12785 ImplicationChecksByTransitivity, 10.7s TimeCoverageRelationStatistics Valid=5538, Invalid=24912, Unknown=0, NotChecked=0, Total=30450 [2020-10-21 22:35:06,335 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2597 states. [2020-10-21 22:35:06,372 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2597 to 1838. [2020-10-21 22:35:06,372 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1838 states. [2020-10-21 22:35:06,376 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1838 states to 1838 states and 3358 transitions. [2020-10-21 22:35:06,377 INFO L78 Accepts]: Start accepts. Automaton has 1838 states and 3358 transitions. Word has length 95 [2020-10-21 22:35:06,377 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-21 22:35:06,377 INFO L481 AbstractCegarLoop]: Abstraction has 1838 states and 3358 transitions. [2020-10-21 22:35:06,377 INFO L482 AbstractCegarLoop]: Interpolant automaton has 32 states. [2020-10-21 22:35:06,377 INFO L276 IsEmpty]: Start isEmpty. Operand 1838 states and 3358 transitions. [2020-10-21 22:35:06,381 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2020-10-21 22:35:06,381 INFO L414 BasicCegarLoop]: Found error trace [2020-10-21 22:35:06,382 INFO L422 BasicCegarLoop]: trace histogram [11, 11, 11, 11, 7, 7, 7, 7, 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 22:35:06,595 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13,11 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-21 22:35:06,596 INFO L429 AbstractCegarLoop]: === Iteration 15 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-21 22:35:06,596 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-21 22:35:06,596 INFO L82 PathProgramCache]: Analyzing trace with hash 1116822284, now seen corresponding path program 6 times [2020-10-21 22:35:06,596 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-21 22:35:06,597 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1491926465] [2020-10-21 22:35:06,597 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-21 22:35:06,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-21 22:35:06,821 INFO L134 CoverageAnalysis]: Checked inductivity of 361 backedges. 0 proven. 361 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-21 22:35:06,822 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1491926465] [2020-10-21 22:35:06,822 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1235434871] [2020-10-21 22:35:06,822 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 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 22:35:23,275 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 9 check-sat command(s) [2020-10-21 22:35:23,275 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-10-21 22:35:23,385 INFO L263 TraceCheckSpWp]: Trace formula consists of 501 conjuncts, 63 conjunts are in the unsatisfiable core [2020-10-21 22:35:23,389 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-21 22:35:23,399 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 347 treesize of output 331 [2020-10-21 22:35:23,402 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-10-21 22:35:23,507 WARN L193 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 21 [2020-10-21 22:35:23,508 INFO L625 ElimStorePlain]: treesize reduction 272, result has 8.4 percent of original size [2020-10-21 22:35:23,511 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 22:35:23,512 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 6 variables, input treesize:26, output treesize:4 [2020-10-21 22:35:23,552 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 22:35:23,552 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-10-21 22:35:23,559 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-21 22:35:23,560 INFO L545 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-10-21 22:35:23,560 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:18, output treesize:14 [2020-10-21 22:35:23,585 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 22:35:23,586 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-10-21 22:35:23,594 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-21 22:35:23,596 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 22:35:23,596 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:29, output treesize:14 [2020-10-21 22:35:23,637 INFO L173 IndexEqualityManager]: detected equality via solver [2020-10-21 22:35:23,653 INFO L350 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-10-21 22:35:23,654 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 2 case distinctions, treesize of input 34 treesize of output 57 [2020-10-21 22:35:23,655 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-10-21 22:35:23,689 INFO L625 ElimStorePlain]: treesize reduction 30, result has 53.1 percent of original size [2020-10-21 22:35:23,691 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 22:35:23,692 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:44, output treesize:20 [2020-10-21 22:35:23,723 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-10-21 22:35:23,724 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 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 22:35:23,725 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-10-21 22:35:23,736 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-21 22:35:23,737 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 22:35:23,738 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:35, output treesize:20 [2020-10-21 22:35:23,803 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 31 treesize of output 15 [2020-10-21 22:35:23,804 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-10-21 22:35:23,811 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-21 22:35:23,811 INFO L545 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-10-21 22:35:23,811 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:35, output treesize:16 [2020-10-21 22:35:23,841 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 22:35:23,842 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-10-21 22:35:23,851 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-21 22:35:23,853 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 22:35:23,853 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 5 variables, input treesize:29, output treesize:9 [2020-10-21 22:35:23,915 INFO L173 IndexEqualityManager]: detected equality via solver [2020-10-21 22:35:23,929 INFO L350 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-10-21 22:35:23,930 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 2 case distinctions, treesize of input 31 treesize of output 49 [2020-10-21 22:35:23,931 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-10-21 22:35:23,960 INFO L625 ElimStorePlain]: treesize reduction 26, result has 49.0 percent of original size [2020-10-21 22:35:23,961 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 22:35:23,962 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:37, output treesize:16 [2020-10-21 22:35:23,995 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-10-21 22:35:23,997 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 22:35:23,997 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-10-21 22:35:24,008 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-21 22:35:24,009 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 22:35:24,009 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:31, output treesize:16 [2020-10-21 22:35:24,013 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 22:35:24,015 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-10-21 22:35:24,017 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-21 22:35:24,017 INFO L545 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-10-21 22:35:24,017 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:19, output treesize:1 [2020-10-21 22:35:24,033 INFO L134 CoverageAnalysis]: Checked inductivity of 361 backedges. 116 proven. 50 refuted. 0 times theorem prover too weak. 195 trivial. 0 not checked. [2020-10-21 22:35:24,034 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-10-21 22:35:24,034 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 11] total 24 [2020-10-21 22:35:24,034 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1940570464] [2020-10-21 22:35:24,034 INFO L461 AbstractCegarLoop]: Interpolant automaton has 24 states [2020-10-21 22:35:24,035 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-21 22:35:24,035 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2020-10-21 22:35:24,035 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=129, Invalid=423, Unknown=0, NotChecked=0, Total=552 [2020-10-21 22:35:24,035 INFO L87 Difference]: Start difference. First operand 1838 states and 3358 transitions. Second operand 24 states. [2020-10-21 22:35:28,146 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-21 22:35:28,146 INFO L93 Difference]: Finished difference Result 2642 states and 4725 transitions. [2020-10-21 22:35:28,147 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 77 states. [2020-10-21 22:35:28,147 INFO L78 Accepts]: Start accepts. Automaton has 24 states. Word has length 104 [2020-10-21 22:35:28,148 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-21 22:35:28,162 INFO L225 Difference]: With dead ends: 2642 [2020-10-21 22:35:28,162 INFO L226 Difference]: Without dead ends: 2642 [2020-10-21 22:35:28,168 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 257 GetRequests, 164 SyntacticMatches, 1 SemanticMatches, 92 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3070 ImplicationChecksByTransitivity, 2.7s TimeCoverageRelationStatistics Valid=1893, Invalid=6849, Unknown=0, NotChecked=0, Total=8742 [2020-10-21 22:35:28,172 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2642 states. [2020-10-21 22:35:28,208 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2642 to 1161. [2020-10-21 22:35:28,208 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1161 states. [2020-10-21 22:35:28,212 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1161 states to 1161 states and 2122 transitions. [2020-10-21 22:35:28,212 INFO L78 Accepts]: Start accepts. Automaton has 1161 states and 2122 transitions. Word has length 104 [2020-10-21 22:35:28,213 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-21 22:35:28,213 INFO L481 AbstractCegarLoop]: Abstraction has 1161 states and 2122 transitions. [2020-10-21 22:35:28,213 INFO L482 AbstractCegarLoop]: Interpolant automaton has 24 states. [2020-10-21 22:35:28,213 INFO L276 IsEmpty]: Start isEmpty. Operand 1161 states and 2122 transitions. [2020-10-21 22:35:28,221 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2020-10-21 22:35:28,222 INFO L414 BasicCegarLoop]: Found error trace [2020-10-21 22:35:28,222 INFO L422 BasicCegarLoop]: trace histogram [12, 12, 12, 12, 8, 8, 8, 8, 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 22:35:28,438 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2020-10-21 22:35:28,438 INFO L429 AbstractCegarLoop]: === Iteration 16 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-21 22:35:28,439 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-21 22:35:28,439 INFO L82 PathProgramCache]: Analyzing trace with hash 1806728482, now seen corresponding path program 7 times [2020-10-21 22:35:28,439 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-21 22:35:28,439 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1815519423] [2020-10-21 22:35:28,440 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-21 22:35:28,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-21 22:35:28,828 INFO L134 CoverageAnalysis]: Checked inductivity of 438 backedges. 0 proven. 438 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-21 22:35:28,829 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1815519423] [2020-10-21 22:35:28,829 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2092822869] [2020-10-21 22:35:28,829 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 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 22:35:28,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-21 22:35:28,991 INFO L263 TraceCheckSpWp]: Trace formula consists of 609 conjuncts, 14 conjunts are in the unsatisfiable core [2020-10-21 22:35:28,993 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-21 22:35:29,026 INFO L134 CoverageAnalysis]: Checked inductivity of 438 backedges. 0 proven. 438 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-21 22:35:29,026 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-10-21 22:35:29,026 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 15] total 16 [2020-10-21 22:35:29,027 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1784177790] [2020-10-21 22:35:29,027 INFO L461 AbstractCegarLoop]: Interpolant automaton has 16 states [2020-10-21 22:35:29,027 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-21 22:35:29,028 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2020-10-21 22:35:29,028 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=120, Invalid=120, Unknown=0, NotChecked=0, Total=240 [2020-10-21 22:35:29,028 INFO L87 Difference]: Start difference. First operand 1161 states and 2122 transitions. Second operand 16 states. [2020-10-21 22:35:29,164 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-21 22:35:29,165 INFO L93 Difference]: Finished difference Result 1333 states and 2431 transitions. [2020-10-21 22:35:29,166 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-10-21 22:35:29,166 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 112 [2020-10-21 22:35:29,166 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-21 22:35:29,171 INFO L225 Difference]: With dead ends: 1333 [2020-10-21 22:35:29,172 INFO L226 Difference]: Without dead ends: 1333 [2020-10-21 22:35:29,172 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 126 GetRequests, 112 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=120, Invalid=120, Unknown=0, NotChecked=0, Total=240 [2020-10-21 22:35:29,174 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1333 states. [2020-10-21 22:35:29,191 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1333 to 1253. [2020-10-21 22:35:29,191 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1253 states. [2020-10-21 22:35:29,194 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1253 states to 1253 states and 2287 transitions. [2020-10-21 22:35:29,195 INFO L78 Accepts]: Start accepts. Automaton has 1253 states and 2287 transitions. Word has length 112 [2020-10-21 22:35:29,195 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-21 22:35:29,195 INFO L481 AbstractCegarLoop]: Abstraction has 1253 states and 2287 transitions. [2020-10-21 22:35:29,195 INFO L482 AbstractCegarLoop]: Interpolant automaton has 16 states. [2020-10-21 22:35:29,195 INFO L276 IsEmpty]: Start isEmpty. Operand 1253 states and 2287 transitions. [2020-10-21 22:35:29,198 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2020-10-21 22:35:29,198 INFO L414 BasicCegarLoop]: Found error trace [2020-10-21 22:35:29,199 INFO L422 BasicCegarLoop]: trace histogram [13, 13, 13, 13, 8, 8, 8, 8, 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 22:35:29,413 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2020-10-21 22:35:29,414 INFO L429 AbstractCegarLoop]: === Iteration 17 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-21 22:35:29,414 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-21 22:35:29,414 INFO L82 PathProgramCache]: Analyzing trace with hash 1194411367, now seen corresponding path program 8 times [2020-10-21 22:35:29,414 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-21 22:35:29,414 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [369844278] [2020-10-21 22:35:29,414 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-21 22:35:29,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-21 22:35:29,651 INFO L134 CoverageAnalysis]: Checked inductivity of 507 backedges. 0 proven. 507 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-21 22:35:29,651 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [369844278] [2020-10-21 22:35:29,652 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [712260020] [2020-10-21 22:35:29,652 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 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 22:35:29,856 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2020-10-21 22:35:29,856 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-10-21 22:35:29,859 INFO L263 TraceCheckSpWp]: Trace formula consists of 644 conjuncts, 15 conjunts are in the unsatisfiable core [2020-10-21 22:35:29,861 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-21 22:35:29,900 INFO L134 CoverageAnalysis]: Checked inductivity of 507 backedges. 0 proven. 507 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-21 22:35:29,900 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-10-21 22:35:29,900 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 16] total 17 [2020-10-21 22:35:29,900 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [571857936] [2020-10-21 22:35:29,904 INFO L461 AbstractCegarLoop]: Interpolant automaton has 17 states [2020-10-21 22:35:29,904 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-21 22:35:29,904 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2020-10-21 22:35:29,904 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=136, Invalid=136, Unknown=0, NotChecked=0, Total=272 [2020-10-21 22:35:29,905 INFO L87 Difference]: Start difference. First operand 1253 states and 2287 transitions. Second operand 17 states. [2020-10-21 22:35:30,058 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-21 22:35:30,058 INFO L93 Difference]: Finished difference Result 1425 states and 2596 transitions. [2020-10-21 22:35:30,058 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2020-10-21 22:35:30,059 INFO L78 Accepts]: Start accepts. Automaton has 17 states. Word has length 119 [2020-10-21 22:35:30,059 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-21 22:35:30,064 INFO L225 Difference]: With dead ends: 1425 [2020-10-21 22:35:30,065 INFO L226 Difference]: Without dead ends: 1425 [2020-10-21 22:35:30,065 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 134 GetRequests, 119 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 22:35:30,067 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1425 states. [2020-10-21 22:35:30,084 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1425 to 1345. [2020-10-21 22:35:30,084 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1345 states. [2020-10-21 22:35:30,087 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1345 states to 1345 states and 2452 transitions. [2020-10-21 22:35:30,088 INFO L78 Accepts]: Start accepts. Automaton has 1345 states and 2452 transitions. Word has length 119 [2020-10-21 22:35:30,088 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-21 22:35:30,088 INFO L481 AbstractCegarLoop]: Abstraction has 1345 states and 2452 transitions. [2020-10-21 22:35:30,088 INFO L482 AbstractCegarLoop]: Interpolant automaton has 17 states. [2020-10-21 22:35:30,088 INFO L276 IsEmpty]: Start isEmpty. Operand 1345 states and 2452 transitions. [2020-10-21 22:35:30,091 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 128 [2020-10-21 22:35:30,092 INFO L414 BasicCegarLoop]: Found error trace [2020-10-21 22:35:30,092 INFO L422 BasicCegarLoop]: trace histogram [14, 14, 14, 14, 9, 9, 9, 9, 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 22:35:30,306 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2020-10-21 22:35:30,307 INFO L429 AbstractCegarLoop]: === Iteration 18 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-21 22:35:30,307 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-21 22:35:30,307 INFO L82 PathProgramCache]: Analyzing trace with hash -1648507203, now seen corresponding path program 9 times [2020-10-21 22:35:30,307 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-21 22:35:30,308 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2047562220] [2020-10-21 22:35:30,308 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-21 22:35:30,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-21 22:35:30,586 INFO L134 CoverageAnalysis]: Checked inductivity of 597 backedges. 0 proven. 597 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-21 22:35:30,586 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2047562220] [2020-10-21 22:35:30,587 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1940073282] [2020-10-21 22:35:30,587 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 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 22:35:33,670 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 6 check-sat command(s) [2020-10-21 22:35:33,671 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-10-21 22:35:33,690 INFO L263 TraceCheckSpWp]: Trace formula consists of 359 conjuncts, 70 conjunts are in the unsatisfiable core [2020-10-21 22:35:33,695 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-21 22:35:33,704 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 22:35:33,707 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 2 xjuncts. [2020-10-21 22:35:33,846 WARN L193 SmtUtils]: Spent 138.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 23 [2020-10-21 22:35:33,846 INFO L625 ElimStorePlain]: treesize reduction 426, result has 5.5 percent of original size [2020-10-21 22:35:33,851 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 22:35:33,851 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 6 variables, input treesize:26, output treesize:4 [2020-10-21 22:35:33,936 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 22:35:33,936 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-10-21 22:35:33,942 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-21 22:35:33,942 INFO L545 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-10-21 22:35:33,943 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:18, output treesize:14 [2020-10-21 22:35:33,969 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 22:35:33,970 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-10-21 22:35:33,978 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-21 22:35:33,979 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 22:35:33,980 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:29, output treesize:14 [2020-10-21 22:35:34,019 INFO L173 IndexEqualityManager]: detected equality via solver [2020-10-21 22:35:34,036 INFO L350 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-10-21 22:35:34,037 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 2 case distinctions, treesize of input 34 treesize of output 57 [2020-10-21 22:35:34,037 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-10-21 22:35:34,073 INFO L625 ElimStorePlain]: treesize reduction 30, result has 53.1 percent of original size [2020-10-21 22:35:34,074 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 22:35:34,074 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:44, output treesize:20 [2020-10-21 22:35:34,111 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-10-21 22:35:34,112 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 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 22:35:34,112 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-10-21 22:35:34,125 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-21 22:35:34,127 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 22:35:34,127 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:35, output treesize:20 [2020-10-21 22:35:34,172 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 34 treesize of output 18 [2020-10-21 22:35:34,173 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-10-21 22:35:34,179 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-21 22:35:34,180 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 22:35:34,180 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:38, output treesize:14 [2020-10-21 22:35:34,214 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 22:35:34,214 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-10-21 22:35:34,222 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-21 22:35:34,224 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 22:35:34,224 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:29, output treesize:14 [2020-10-21 22:35:34,268 INFO L173 IndexEqualityManager]: detected equality via solver [2020-10-21 22:35:34,285 INFO L350 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-10-21 22:35:34,286 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 2 case distinctions, treesize of input 34 treesize of output 57 [2020-10-21 22:35:34,287 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-10-21 22:35:34,287 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-10-21 22:35:34,326 INFO L625 ElimStorePlain]: treesize reduction 35, result has 53.3 percent of original size [2020-10-21 22:35:34,327 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 22:35:34,328 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:44, output treesize:20 [2020-10-21 22:35:34,369 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-10-21 22:35:34,370 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 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 22:35:34,370 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-10-21 22:35:34,383 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-21 22:35:34,384 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 22:35:34,384 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:35, output treesize:20 [2020-10-21 22:35:34,458 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 31 treesize of output 15 [2020-10-21 22:35:34,459 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-10-21 22:35:34,464 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-21 22:35:34,464 INFO L545 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-10-21 22:35:34,464 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:35, output treesize:14 [2020-10-21 22:35:34,496 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 22:35:34,497 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-10-21 22:35:34,504 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-21 22:35:34,512 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 22:35:34,512 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 5 variables, input treesize:29, output treesize:9 [2020-10-21 22:35:34,572 INFO L173 IndexEqualityManager]: detected equality via solver [2020-10-21 22:35:34,593 INFO L350 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-10-21 22:35:34,594 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 2 case distinctions, treesize of input 31 treesize of output 49 [2020-10-21 22:35:34,596 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-10-21 22:35:34,596 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-10-21 22:35:34,598 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-10-21 22:35:34,599 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 2 xjuncts. [2020-10-21 22:35:34,634 INFO L625 ElimStorePlain]: treesize reduction 94, result has 26.0 percent of original size [2020-10-21 22:35:34,635 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 22:35:34,636 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:37, output treesize:16 [2020-10-21 22:35:34,672 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-10-21 22:35:34,673 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 22:35:34,674 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-10-21 22:35:34,691 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-21 22:35:34,692 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 22:35:34,693 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:31, output treesize:16 [2020-10-21 22:35:34,703 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 22:35:34,704 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-10-21 22:35:34,706 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-21 22:35:34,706 INFO L545 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-10-21 22:35:34,706 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:19, output treesize:1 [2020-10-21 22:35:34,737 INFO L134 CoverageAnalysis]: Checked inductivity of 597 backedges. 220 proven. 73 refuted. 0 times theorem prover too weak. 304 trivial. 0 not checked. [2020-10-21 22:35:34,737 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-10-21 22:35:34,737 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 15] total 31 [2020-10-21 22:35:34,738 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1537609581] [2020-10-21 22:35:34,738 INFO L461 AbstractCegarLoop]: Interpolant automaton has 31 states [2020-10-21 22:35:34,738 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-21 22:35:34,739 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 31 interpolants. [2020-10-21 22:35:34,740 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=224, Invalid=706, Unknown=0, NotChecked=0, Total=930 [2020-10-21 22:35:34,740 INFO L87 Difference]: Start difference. First operand 1345 states and 2452 transitions. Second operand 31 states. [2020-10-21 22:35:43,685 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-21 22:35:43,685 INFO L93 Difference]: Finished difference Result 2578 states and 4645 transitions. [2020-10-21 22:35:43,686 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 142 states. [2020-10-21 22:35:43,687 INFO L78 Accepts]: Start accepts. Automaton has 31 states. Word has length 127 [2020-10-21 22:35:43,687 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-21 22:35:43,696 INFO L225 Difference]: With dead ends: 2578 [2020-10-21 22:35:43,696 INFO L226 Difference]: Without dead ends: 2578 [2020-10-21 22:35:43,703 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 413 GetRequests, 248 SyntacticMatches, 1 SemanticMatches, 164 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11299 ImplicationChecksByTransitivity, 7.0s TimeCoverageRelationStatistics Valid=6417, Invalid=20973, Unknown=0, NotChecked=0, Total=27390 [2020-10-21 22:35:43,707 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2578 states. [2020-10-21 22:35:43,733 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2578 to 1830. [2020-10-21 22:35:43,733 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1830 states. [2020-10-21 22:35:43,737 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1830 states to 1830 states and 3298 transitions. [2020-10-21 22:35:43,738 INFO L78 Accepts]: Start accepts. Automaton has 1830 states and 3298 transitions. Word has length 127 [2020-10-21 22:35:43,738 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-21 22:35:43,738 INFO L481 AbstractCegarLoop]: Abstraction has 1830 states and 3298 transitions. [2020-10-21 22:35:43,738 INFO L482 AbstractCegarLoop]: Interpolant automaton has 31 states. [2020-10-21 22:35:43,738 INFO L276 IsEmpty]: Start isEmpty. Operand 1830 states and 3298 transitions. [2020-10-21 22:35:43,743 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 137 [2020-10-21 22:35:43,743 INFO L414 BasicCegarLoop]: Found error trace [2020-10-21 22:35:43,743 INFO L422 BasicCegarLoop]: trace histogram [15, 15, 15, 15, 11, 11, 11, 11, 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 22:35:43,957 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17,15 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-21 22:35:43,958 INFO L429 AbstractCegarLoop]: === Iteration 19 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-21 22:35:43,958 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-21 22:35:43,958 INFO L82 PathProgramCache]: Analyzing trace with hash -1400789768, now seen corresponding path program 10 times [2020-10-21 22:35:43,958 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-21 22:35:43,958 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2021349204] [2020-10-21 22:35:43,958 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-21 22:35:43,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-21 22:35:44,310 INFO L134 CoverageAnalysis]: Checked inductivity of 717 backedges. 0 proven. 717 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-21 22:35:44,310 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2021349204] [2020-10-21 22:35:44,311 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [802300190] [2020-10-21 22:35:44,311 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 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 22:37:28,962 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2020-10-21 22:37:28,962 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-10-21 22:37:32,483 INFO L263 TraceCheckSpWp]: Trace formula consists of 717 conjuncts, 17 conjunts are in the unsatisfiable core [2020-10-21 22:37:32,486 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-21 22:37:32,533 INFO L134 CoverageAnalysis]: Checked inductivity of 717 backedges. 0 proven. 717 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-21 22:37:32,533 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-10-21 22:37:32,533 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [18, 18] total 19 [2020-10-21 22:37:32,534 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1038438884] [2020-10-21 22:37:32,534 INFO L461 AbstractCegarLoop]: Interpolant automaton has 19 states [2020-10-21 22:37:32,534 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-21 22:37:32,534 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2020-10-21 22:37:32,535 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=171, Invalid=171, Unknown=0, NotChecked=0, Total=342 [2020-10-21 22:37:32,535 INFO L87 Difference]: Start difference. First operand 1830 states and 3298 transitions. Second operand 19 states. [2020-10-21 22:37:32,714 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-21 22:37:32,715 INFO L93 Difference]: Finished difference Result 2062 states and 3712 transitions. [2020-10-21 22:37:32,716 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2020-10-21 22:37:32,716 INFO L78 Accepts]: Start accepts. Automaton has 19 states. Word has length 136 [2020-10-21 22:37:32,716 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-21 22:37:32,725 INFO L225 Difference]: With dead ends: 2062 [2020-10-21 22:37:32,725 INFO L226 Difference]: Without dead ends: 2062 [2020-10-21 22:37:32,726 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 153 GetRequests, 136 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 28 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=171, Invalid=171, Unknown=0, NotChecked=0, Total=342 [2020-10-21 22:37:32,728 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2062 states. [2020-10-21 22:37:32,746 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2062 to 1954. [2020-10-21 22:37:32,746 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1954 states. [2020-10-21 22:37:32,750 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1954 states to 1954 states and 3519 transitions. [2020-10-21 22:37:32,750 INFO L78 Accepts]: Start accepts. Automaton has 1954 states and 3519 transitions. Word has length 136 [2020-10-21 22:37:32,751 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-21 22:37:32,751 INFO L481 AbstractCegarLoop]: Abstraction has 1954 states and 3519 transitions. [2020-10-21 22:37:32,751 INFO L482 AbstractCegarLoop]: Interpolant automaton has 19 states. [2020-10-21 22:37:32,751 INFO L276 IsEmpty]: Start isEmpty. Operand 1954 states and 3519 transitions. [2020-10-21 22:37:32,756 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 145 [2020-10-21 22:37:32,756 INFO L414 BasicCegarLoop]: Found error trace [2020-10-21 22:37:32,756 INFO L422 BasicCegarLoop]: trace histogram [16, 16, 16, 16, 12, 12, 12, 12, 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 22:37:32,970 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,16 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-21 22:37:32,970 INFO L429 AbstractCegarLoop]: === Iteration 20 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-21 22:37:32,971 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-21 22:37:32,971 INFO L82 PathProgramCache]: Analyzing trace with hash -297973342, now seen corresponding path program 11 times [2020-10-21 22:37:32,971 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-21 22:37:32,971 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1979949458] [2020-10-21 22:37:32,971 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-21 22:37:33,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-21 22:37:33,335 INFO L134 CoverageAnalysis]: Checked inductivity of 826 backedges. 0 proven. 826 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-21 22:37:33,336 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1979949458] [2020-10-21 22:37:33,336 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [292098282] [2020-10-21 22:37:33,336 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 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 [2020-10-21 22:37:41,904 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 10 check-sat command(s) [2020-10-21 22:37:41,904 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-10-21 22:37:41,953 INFO L263 TraceCheckSpWp]: Trace formula consists of 431 conjuncts, 194 conjunts are in the unsatisfiable core [2020-10-21 22:37:41,958 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-21 22:37:42,046 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 32 treesize of output 16 [2020-10-21 22:37:42,047 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-10-21 22:37:42,050 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-21 22:37:42,050 INFO L545 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-10-21 22:37:42,051 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:32, output treesize:12 [2020-10-21 22:37:42,109 INFO L350 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-10-21 22:37:42,109 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 26 treesize of output 63 [2020-10-21 22:37:42,110 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-21 22:37:42,112 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-10-21 22:37:42,155 INFO L625 ElimStorePlain]: treesize reduction 24, result has 63.1 percent of original size [2020-10-21 22:37:42,156 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-21 22:37:42,158 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 22:37:42,158 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:31, output treesize:36 [2020-10-21 22:37:42,277 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-21 22:37:42,316 INFO L350 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-10-21 22:37:42,316 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 2 new quantified variables, introduced 1 case distinctions, treesize of input 21 treesize of output 46 [2020-10-21 22:37:42,317 INFO L375 QuantifierPusher]: Applying distributivity to a CONJUNCTION[3, 2, 1] term [2020-10-21 22:37:42,318 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-10-21 22:37:42,318 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 2 xjuncts. [2020-10-21 22:37:42,325 INFO L173 IndexEqualityManager]: detected equality via solver [2020-10-21 22:37:42,346 INFO L350 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-10-21 22:37:42,347 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 2 case distinctions, treesize of input 32 treesize of output 50 [2020-10-21 22:37:42,348 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-10-21 22:37:42,349 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-10-21 22:37:42,355 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-10-21 22:37:42,356 INFO L545 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 2 xjuncts. [2020-10-21 22:37:42,494 WARN L193 SmtUtils]: Spent 137.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 45 [2020-10-21 22:37:42,495 INFO L625 ElimStorePlain]: treesize reduction 141, result has 34.7 percent of original size [2020-10-21 22:37:42,496 INFO L545 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 2 xjuncts. [2020-10-21 22:37:42,496 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 1 variables, input treesize:91, output treesize:75 [2020-10-21 22:37:42,582 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-21 22:37:42,592 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-10-21 22:37:42,601 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 22:37:42,602 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-10-21 22:37:42,609 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-10-21 22:37:42,637 INFO L350 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-10-21 22:37:42,637 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 43 treesize of output 74 [2020-10-21 22:37:42,638 INFO L545 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-10-21 22:37:42,749 WARN L193 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 52 [2020-10-21 22:37:42,750 INFO L625 ElimStorePlain]: treesize reduction 62, result has 64.6 percent of original size [2020-10-21 22:37:42,752 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 22:37:42,752 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:105, output treesize:91 [2020-10-21 22:37:43,071 INFO L375 QuantifierPusher]: Applying distributivity to a CONJUNCTION[3, 2, 6, 2, 1] term [2020-10-21 22:37:43,072 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-10-21 22:37:43,073 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-10-21 22:37:43,081 INFO L441 ElimStorePlain]: Different costs {2=[|v_#memory_int_238|], 6=[v_prenex_3]} [2020-10-21 22:37:43,087 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 41 treesize of output 19 [2020-10-21 22:37:43,088 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-10-21 22:37:43,196 WARN L193 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 53 [2020-10-21 22:37:43,197 INFO L625 ElimStorePlain]: treesize reduction 20, result has 87.6 percent of original size [2020-10-21 22:37:43,208 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-10-21 22:37:43,235 INFO L350 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-10-21 22:37:43,236 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 59 treesize of output 69 [2020-10-21 22:37:43,237 INFO L545 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-10-21 22:37:43,244 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 33 treesize of output 17 [2020-10-21 22:37:43,245 INFO L545 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2020-10-21 22:37:43,325 INFO L625 ElimStorePlain]: treesize reduction 88, result has 54.4 percent of original size [2020-10-21 22:37:43,326 INFO L545 ElimStorePlain]: Start of recursive call 1: 2 dim-2 vars, End of recursive call: and 3 xjuncts. [2020-10-21 22:37:43,326 INFO L244 ElimStorePlain]: Needed 4 recursive calls to eliminate 2 variables, input treesize:178, output treesize:105 [2020-10-21 22:37:43,410 INFO L603 QuantifierPusher]: Distributing 3 conjuncts over 2 disjuncts [2020-10-21 22:37:43,511 INFO L350 Elim1Store]: treesize reduction 32, result has 67.0 percent of original size [2020-10-21 22:37:43,512 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 3 new quantified variables, introduced 3 case distinctions, treesize of input 51 treesize of output 92 [2020-10-21 22:37:43,513 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 6 disjuncts [2020-10-21 22:37:43,514 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 6 disjuncts [2020-10-21 22:37:43,514 INFO L603 QuantifierPusher]: Distributing 3 conjuncts over 5 disjuncts [2020-10-21 22:37:43,516 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 6 disjuncts [2020-10-21 22:37:43,517 INFO L603 QuantifierPusher]: Distributing 3 conjuncts over 5 disjuncts [2020-10-21 22:37:43,520 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 6 disjuncts [2020-10-21 22:37:43,520 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 6 disjuncts [2020-10-21 22:37:43,521 INFO L603 QuantifierPusher]: Distributing 3 conjuncts over 5 disjuncts [2020-10-21 22:37:43,523 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 6 disjuncts [2020-10-21 22:37:43,524 INFO L603 QuantifierPusher]: Distributing 3 conjuncts over 5 disjuncts [2020-10-21 22:37:43,525 INFO L545 ElimStorePlain]: Start of recursive call 2: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-10-21 22:37:43,540 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-10-21 22:37:43,542 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-10-21 22:37:43,543 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 27 [2020-10-21 22:37:43,544 INFO L545 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-10-21 22:37:43,579 INFO L350 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-10-21 22:37:43,580 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 27 treesize of output 64 [2020-10-21 22:37:43,581 INFO L545 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2020-10-21 22:37:43,742 WARN L193 SmtUtils]: Spent 161.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 61 [2020-10-21 22:37:43,743 INFO L625 ElimStorePlain]: treesize reduction 81, result has 66.0 percent of original size [2020-10-21 22:37:43,745 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-10-21 22:37:43,748 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-21 22:37:43,753 INFO L545 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: 3 dim-0 vars, and 4 xjuncts. [2020-10-21 22:37:43,753 INFO L244 ElimStorePlain]: Needed 4 recursive calls to eliminate 3 variables, input treesize:152, output treesize:151 [2020-10-21 22:37:43,754 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-10-21 22:37:46,072 WARN L193 SmtUtils]: Spent 2.15 s on a formula simplification. DAG size of input: 79 DAG size of output: 57 [2020-10-21 22:37:46,075 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-10-21 22:37:46,798 WARN L193 SmtUtils]: Spent 597.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 61 [2020-10-21 22:37:46,802 INFO L375 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 3, 6, 1] term [2020-10-21 22:37:46,803 INFO L603 QuantifierPusher]: Distributing 3 conjuncts over 2 disjuncts [2020-10-21 22:37:46,820 INFO L441 ElimStorePlain]: Different costs {2=[|v_#memory_int_240|], 6=[v_prenex_8], 20=[v_prenex_6]} [2020-10-21 22:37:46,848 INFO L350 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-10-21 22:37:46,849 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 2 new quantified variables, introduced 1 case distinctions, treesize of input 21 treesize of output 46 [2020-10-21 22:37:46,850 INFO L375 QuantifierPusher]: Applying distributivity to a CONJUNCTION[3, 2, 1] term [2020-10-21 22:37:46,851 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-10-21 22:37:46,851 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 2 xjuncts. [2020-10-21 22:37:47,122 WARN L193 SmtUtils]: Spent 270.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 84 [2020-10-21 22:37:47,123 INFO L625 ElimStorePlain]: treesize reduction 27, result has 86.6 percent of original size [2020-10-21 22:37:47,132 INFO L173 IndexEqualityManager]: detected equality via solver [2020-10-21 22:37:47,150 INFO L350 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-10-21 22:37:47,151 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 2 case distinctions, treesize of input 31 treesize of output 49 [2020-10-21 22:37:47,152 INFO L545 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-10-21 22:37:47,376 WARN L193 SmtUtils]: Spent 223.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 80 [2020-10-21 22:37:47,377 INFO L625 ElimStorePlain]: treesize reduction 26, result has 86.2 percent of original size [2020-10-21 22:37:47,394 INFO L173 IndexEqualityManager]: detected equality via solver [2020-10-21 22:37:47,505 WARN L193 SmtUtils]: Spent 104.00 ms on a formula simplification that was a NOOP. DAG size: 59 [2020-10-21 22:37:47,506 INFO L350 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-10-21 22:37:47,506 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 5 new quantified variables, introduced 9 case distinctions, treesize of input 68 treesize of output 179 [2020-10-21 22:37:47,508 INFO L375 QuantifierPusher]: Applying distributivity to a CONJUNCTION[4, 3, 2, 1] term [2020-10-21 22:37:47,509 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-10-21 22:37:47,510 INFO L375 QuantifierPusher]: Applying distributivity to a CONJUNCTION[3, 3, 2, 1] term [2020-10-21 22:37:47,510 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-10-21 22:37:47,510 INFO L375 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 3, 2, 1] term [2020-10-21 22:37:47,510 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-21 22:37:47,512 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 8 disjuncts [2020-10-21 22:37:47,512 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 8 disjuncts [2020-10-21 22:37:47,514 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 8 disjuncts [2020-10-21 22:37:47,516 INFO L545 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 4 xjuncts. [2020-10-21 22:37:47,947 WARN L193 SmtUtils]: Spent 429.00 ms on a formula simplification. DAG size of input: 151 DAG size of output: 78 [2020-10-21 22:37:47,948 INFO L625 ElimStorePlain]: treesize reduction 1555, result has 10.4 percent of original size [2020-10-21 22:37:47,950 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-21 22:37:47,952 INFO L545 ElimStorePlain]: Start of recursive call 1: 4 dim-0 vars, 3 dim-2 vars, End of recursive call: 1 dim-0 vars, and 3 xjuncts. [2020-10-21 22:37:47,952 INFO L244 ElimStorePlain]: Needed 4 recursive calls to eliminate 7 variables, input treesize:169, output treesize:128 [2020-10-21 22:37:47,952 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-21 22:37:50,156 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-21 22:37:50,158 WARN L340 FreeRefinementEngine]: Global settings require throwing the following exception [2020-10-21 22:37:50,359 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,17 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-21 22:37:50,360 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction has thrown an exception: java.lang.AssertionError: should have been removed by DER at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.pqe.XnfTir.tryToEliminateConjuncts(XnfTir.java:271) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.pqe.XnfTir.tryToEliminateSingleDisjuct(XnfTir.java:143) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.pqe.XnfTir.tryToEliminate(XnfTir.java:114) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.PartialQuantifierElimination.applyEliminationInner(PartialQuantifierElimination.java:533) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.PartialQuantifierElimination.applyEliminationOuter(PartialQuantifierElimination.java:501) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.PartialQuantifierElimination.applyTir(PartialQuantifierElimination.java:437) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.PartialQuantifierElimination.elim(PartialQuantifierElimination.java:281) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.PartialQuantifierElimination.tryToEliminate(PartialQuantifierElimination.java:105) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.predicates.IterativePredicateTransformer$QuantifierEliminationPostprocessor.postprocess(IterativePredicateTransformer.java:246) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.predicates.IterativePredicateTransformer.applyPostprocessors(IterativePredicateTransformer.java:440) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.predicates.IterativePredicateTransformer.computeStrongestPostconditionSequence(IterativePredicateTransformer.java:201) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheckSpWp.computeInterpolantsUsingUnsatCore(TraceCheckSpWp.java:299) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheckSpWp.computeInterpolants(TraceCheckSpWp.java:185) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheckSpWp.(TraceCheckSpWp.java:163) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleSpWp.construct(IpTcStrategyModuleSpWp.java:108) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleSpWp.construct(IpTcStrategyModuleSpWp.java:1) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getOrConstruct(IpTcStrategyModuleBase.java:100) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getInterpolantComputationStatus(IpTcStrategyModuleBase.java:76) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.tryExecuteInterpolantGenerator(AutomatonFreeRefinementEngine.java:289) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.generateProof(AutomatonFreeRefinementEngine.java:189) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.executeStrategy(AutomatonFreeRefinementEngine.java:179) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.(AutomatonFreeRefinementEngine.java:84) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:74) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:511) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterateInternal(AbstractCegarLoop.java:438) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:372) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.CegarLoopResult.iterate(CegarLoopResult.java:142) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.iterateNew(TraceAbstractionStarter.java:360) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:182) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:134) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:124) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:55) [2020-10-21 22:37:50,365 INFO L168 Benchmark]: Toolchain (without parser) took 211351.70 ms. Allocated memory was 139.5 MB in the beginning and 564.7 MB in the end (delta: 425.2 MB). Free memory was 101.1 MB in the beginning and 358.0 MB in the end (delta: -256.9 MB). Peak memory consumption was 168.3 MB. Max. memory is 7.1 GB. [2020-10-21 22:37:50,365 INFO L168 Benchmark]: CDTParser took 0.22 ms. Allocated memory is still 139.5 MB. Free memory was 121.0 MB in the beginning and 120.8 MB in the end (delta: 209.7 kB). Peak memory consumption was 209.7 kB. Max. memory is 7.1 GB. [2020-10-21 22:37:50,366 INFO L168 Benchmark]: CACSL2BoogieTranslator took 891.54 ms. Allocated memory was 139.5 MB in the beginning and 202.4 MB in the end (delta: 62.9 MB). Free memory was 100.1 MB in the beginning and 130.0 MB in the end (delta: -29.9 MB). Peak memory consumption was 38.2 MB. Max. memory is 7.1 GB. [2020-10-21 22:37:50,366 INFO L168 Benchmark]: Boogie Procedure Inliner took 78.13 ms. Allocated memory is still 202.4 MB. Free memory was 130.0 MB in the beginning and 126.4 MB in the end (delta: 3.6 MB). Peak memory consumption was 3.6 MB. Max. memory is 7.1 GB. [2020-10-21 22:37:50,367 INFO L168 Benchmark]: Boogie Preprocessor took 41.75 ms. Allocated memory is still 202.4 MB. Free memory was 126.4 MB in the beginning and 124.3 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 7.1 GB. [2020-10-21 22:37:50,367 INFO L168 Benchmark]: RCFGBuilder took 658.35 ms. Allocated memory was 202.4 MB in the beginning and 234.9 MB in the end (delta: 32.5 MB). Free memory was 124.3 MB in the beginning and 198.0 MB in the end (delta: -73.6 MB). Peak memory consumption was 42.9 MB. Max. memory is 7.1 GB. [2020-10-21 22:37:50,368 INFO L168 Benchmark]: TraceAbstraction took 209672.14 ms. Allocated memory was 234.9 MB in the beginning and 564.7 MB in the end (delta: 329.8 MB). Free memory was 196.5 MB in the beginning and 358.0 MB in the end (delta: -161.5 MB). Peak memory consumption was 168.3 MB. Max. memory is 7.1 GB. [2020-10-21 22:37:50,374 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22 ms. Allocated memory is still 139.5 MB. Free memory was 121.0 MB in the beginning and 120.8 MB in the end (delta: 209.7 kB). Peak memory consumption was 209.7 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 891.54 ms. Allocated memory was 139.5 MB in the beginning and 202.4 MB in the end (delta: 62.9 MB). Free memory was 100.1 MB in the beginning and 130.0 MB in the end (delta: -29.9 MB). Peak memory consumption was 38.2 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 78.13 ms. Allocated memory is still 202.4 MB. Free memory was 130.0 MB in the beginning and 126.4 MB in the end (delta: 3.6 MB). Peak memory consumption was 3.6 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 41.75 ms. Allocated memory is still 202.4 MB. Free memory was 126.4 MB in the beginning and 124.3 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 7.1 GB. * RCFGBuilder took 658.35 ms. Allocated memory was 202.4 MB in the beginning and 234.9 MB in the end (delta: 32.5 MB). Free memory was 124.3 MB in the beginning and 198.0 MB in the end (delta: -73.6 MB). Peak memory consumption was 42.9 MB. Max. memory is 7.1 GB. * TraceAbstraction took 209672.14 ms. Allocated memory was 234.9 MB in the beginning and 564.7 MB in the end (delta: 329.8 MB). Free memory was 196.5 MB in the beginning and 358.0 MB in the end (delta: -161.5 MB). Peak memory consumption was 168.3 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks 5308 VarBasedMoverChecksPositive, 82 VarBasedMoverChecksNegative, 0 SemBasedMoverChecksPositive, 0 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.0s, 251 CheckedPairsTotal, LiptonReductionStatistics: ReductionTime: 12.5s, 208 PlacesBefore, 53 PlacesAfterwards, 218 TransitionsBefore, 55 TransitionsAfterwards, 10000 CoEnabledTransitionPairs, 8 FixpointIterations, 70 TrivialSequentialCompositions, 98 ConcurrentSequentialCompositions, 6 TrivialYvCompositions, 21 ConcurrentYvCompositions, 8 ChoiceCompositions, 203 TotalNumberOfCompositions, 25000 MoverChecksTotal - ExceptionOrErrorResult: AssertionError: should have been removed by DER de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: AssertionError: should have been removed by DER: de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.pqe.XnfTir.tryToEliminateConjuncts(XnfTir.java:271) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request...