/usr/bin/java -Xmx16000000000 -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/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/pthread/stack-1.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-7bb8cbd [2020-10-15 16:41:16,450 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-15 16:41:16,454 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-15 16:41:16,497 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-15 16:41:16,497 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-15 16:41:16,506 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-15 16:41:16,507 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-15 16:41:16,511 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-15 16:41:16,513 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-15 16:41:16,516 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-15 16:41:16,518 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-15 16:41:16,520 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-15 16:41:16,520 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-15 16:41:16,523 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-15 16:41:16,525 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-15 16:41:16,527 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-15 16:41:16,529 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-15 16:41:16,530 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-15 16:41:16,532 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-15 16:41:16,541 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-15 16:41:16,543 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-15 16:41:16,544 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-15 16:41:16,545 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-15 16:41:16,548 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-15 16:41:16,553 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-10-15 16:41:16,556 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-15 16:41:16,560 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-15 16:41:16,560 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-15 16:41:16,561 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-15 16:41:16,562 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-15 16:41:16,562 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-15 16:41:16,563 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-15 16:41:16,563 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-15 16:41:16,563 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-15 16:41:16,564 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-15 16:41:16,565 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-15 16:41:16,565 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-10-15 16:41:16,587 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-15 16:41:16,587 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-15 16:41:16,588 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-15 16:41:16,589 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-15 16:41:16,589 INFO L138 SettingsManager]: * Use SBE=true [2020-10-15 16:41:16,589 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-15 16:41:16,589 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-15 16:41:16,589 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-15 16:41:16,590 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-15 16:41:16,590 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-15 16:41:16,590 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-15 16:41:16,590 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-15 16:41:16,590 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-15 16:41:16,591 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-15 16:41:16,591 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-15 16:41:16,591 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-15 16:41:16,591 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-15 16:41:16,591 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-15 16:41:16,592 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-15 16:41:16,592 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-15 16:41:16,592 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-15 16:41:16,592 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-15 16:41:16,592 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-15 16:41:16,593 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-15 16:41:16,593 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-15 16:41:16,593 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-15 16:41:16,593 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-15 16:41:16,593 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-15 16:41:16,594 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-15 16:41:16,594 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-10-15 16:41:16,922 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-15 16:41:16,934 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-15 16:41:16,939 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-15 16:41:16,940 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-15 16:41:16,941 INFO L275 PluginConnector]: CDTParser initialized [2020-10-15 16:41:16,942 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread/stack-1.i [2020-10-15 16:41:17,024 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/020388e8e/36418c6ada9b4be39ff986f884a78edc/FLAG3c6833f2e [2020-10-15 16:41:17,612 INFO L306 CDTParser]: Found 1 translation units. [2020-10-15 16:41:17,612 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread/stack-1.i [2020-10-15 16:41:17,630 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/020388e8e/36418c6ada9b4be39ff986f884a78edc/FLAG3c6833f2e [2020-10-15 16:41:17,883 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/020388e8e/36418c6ada9b4be39ff986f884a78edc [2020-10-15 16:41:17,894 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-15 16:41:17,896 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2020-10-15 16:41:17,897 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-15 16:41:17,897 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-15 16:41:17,901 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-15 16:41:17,902 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 04:41:17" (1/1) ... [2020-10-15 16:41:17,905 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@61b82715 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 04:41:17, skipping insertion in model container [2020-10-15 16:41:17,906 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 04:41:17" (1/1) ... [2020-10-15 16:41:17,914 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-15 16:41:17,963 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-15 16:41:18,630 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-15 16:41:18,650 INFO L203 MainTranslator]: Completed pre-run [2020-10-15 16:41:18,693 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-15 16:41:18,842 INFO L208 MainTranslator]: Completed translation [2020-10-15 16:41:18,843 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 04:41:18 WrapperNode [2020-10-15 16:41:18,843 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-15 16:41:18,844 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-10-15 16:41:18,844 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-10-15 16:41:18,845 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-10-15 16:41:18,854 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 04:41:18" (1/1) ... [2020-10-15 16:41:18,875 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 04:41:18" (1/1) ... [2020-10-15 16:41:18,914 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-10-15 16:41:18,915 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-15 16:41:18,915 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-15 16:41:18,915 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-15 16:41:18,930 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 04:41:18" (1/1) ... [2020-10-15 16:41:18,930 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 04:41:18" (1/1) ... [2020-10-15 16:41:18,935 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 04:41:18" (1/1) ... [2020-10-15 16:41:18,936 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 04:41:18" (1/1) ... [2020-10-15 16:41:18,944 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 04:41:18" (1/1) ... [2020-10-15 16:41:18,950 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 04:41:18" (1/1) ... [2020-10-15 16:41:18,953 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 04:41:18" (1/1) ... [2020-10-15 16:41:18,957 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-15 16:41:18,958 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-15 16:41:18,958 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-15 16:41:18,958 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-15 16:41:18,960 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 04:41:18" (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 [2020-10-15 16:41:19,039 INFO L130 BoogieDeclarations]: Found specification of procedure t1 [2020-10-15 16:41:19,039 INFO L138 BoogieDeclarations]: Found implementation of procedure t1 [2020-10-15 16:41:19,039 INFO L130 BoogieDeclarations]: Found specification of procedure t2 [2020-10-15 16:41:19,039 INFO L138 BoogieDeclarations]: Found implementation of procedure t2 [2020-10-15 16:41:19,039 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-15 16:41:19,040 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-15 16:41:19,040 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-15 16:41:19,041 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-15 16:41:19,041 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2020-10-15 16:41:19,042 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-15 16:41:19,042 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-15 16:41:19,042 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-15 16:41:19,044 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2020-10-15 16:41:19,578 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-15 16:41:19,578 INFO L298 CfgBuilder]: Removed 24 assume(true) statements. [2020-10-15 16:41:19,580 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 04:41:19 BoogieIcfgContainer [2020-10-15 16:41:19,581 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-15 16:41:19,583 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-15 16:41:19,583 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-15 16:41:19,587 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-15 16:41:19,587 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.10 04:41:17" (1/3) ... [2020-10-15 16:41:19,588 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3c5ffb0d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 04:41:19, skipping insertion in model container [2020-10-15 16:41:19,588 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 04:41:18" (2/3) ... [2020-10-15 16:41:19,588 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3c5ffb0d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 04:41:19, skipping insertion in model container [2020-10-15 16:41:19,589 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 04:41:19" (3/3) ... [2020-10-15 16:41:19,591 INFO L111 eAbstractionObserver]: Analyzing ICFG stack-1.i [2020-10-15 16:41:19,603 WARN L153 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2020-10-15 16:41:19,604 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-10-15 16:41:19,613 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 2 error locations. [2020-10-15 16:41:19,614 INFO L348 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2020-10-15 16:41:19,651 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 16:41:19,652 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 16:41:19,652 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 16:41:19,652 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 16:41:19,653 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 16:41:19,653 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~tmp~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 16:41:19,653 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 16:41:19,653 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 16:41:19,654 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 16:41:19,654 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 16:41:19,654 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 16:41:19,654 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~nondet41| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 16:41:19,655 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~nondet41| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 16:41:19,655 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~nondet42| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 16:41:19,655 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~tmp~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 16:41:19,655 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~nondet42| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 16:41:19,656 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~tmp~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 16:41:19,656 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 16:41:19,656 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 16:41:19,656 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 16:41:19,657 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 16:41:19,657 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 16:41:19,657 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 16:41:19,657 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~tmp~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 16:41:19,658 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_#in~stack.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 16:41:19,658 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_#in~stack.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 16:41:19,658 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_#in~x| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 16:41:19,658 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 16:41:19,659 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_push_~stack.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 16:41:19,659 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_#t~nondet33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 16:41:19,659 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_push_~x not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 16:41:19,659 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_#t~ret35| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 16:41:19,660 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_push_~stack.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 16:41:19,660 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_#in~stack.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 16:41:19,660 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_#in~stack.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 16:41:19,660 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_push_~stack.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 16:41:19,660 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_push_~stack.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 16:41:19,661 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_#in~x| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 16:41:19,661 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_push_~x not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 16:41:19,661 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_#t~nondet33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 16:41:19,662 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_get_top_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 16:41:19,662 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 16:41:19,662 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_get_top_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 16:41:19,662 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 16:41:19,663 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~ret43| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 16:41:19,663 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_get_top_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 16:41:19,663 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_#t~ret35| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 16:41:19,663 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~ret43| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 16:41:19,664 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_#t~ret35| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 16:41:19,664 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~ret43| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 16:41:19,664 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~ret43| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 16:41:19,664 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_push_~stack.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 16:41:19,665 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_push_~x not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 16:41:19,665 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_push_~stack.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 16:41:19,665 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_#t~ret35| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 16:41:19,665 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~ret43| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 16:41:19,666 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~ret43| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 16:41:19,666 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_#t~ret35| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 16:41:19,666 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_inc_top_#t~post30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 16:41:19,667 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 16:41:19,667 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~post40| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 16:41:19,667 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_inc_top_#t~post30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 16:41:19,667 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~post40| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 16:41:19,668 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 16:41:19,668 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_inc_top_#t~post30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 16:41:19,668 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~post40| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 16:41:19,668 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_inc_top_#t~post30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 16:41:19,669 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 16:41:19,670 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 16:41:19,670 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 16:41:19,670 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 16:41:19,671 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 16:41:19,671 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 16:41:19,671 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 16:41:19,671 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 16:41:19,672 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 16:41:19,672 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 16:41:19,672 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 16:41:19,672 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#t~nondet45| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 16:41:19,673 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#t~nondet45| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 16:41:19,673 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#in~stack.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 16:41:19,673 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#in~stack.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 16:41:19,674 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 16:41:19,674 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 16:41:19,674 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#t~post44| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 16:41:19,675 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_pop_~stack.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 16:41:19,675 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#t~ret38| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 16:41:19,675 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_pop_~stack.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 16:41:19,675 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#t~nondet36| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 16:41:19,676 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#t~mem39| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 16:41:19,676 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#t~post44| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 16:41:19,676 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 16:41:19,676 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#in~stack.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 16:41:19,677 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#in~stack.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 16:41:19,677 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_pop_~stack.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 16:41:19,677 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_pop_~stack.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 16:41:19,677 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#t~post44| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 16:41:19,678 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#t~nondet36| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 16:41:19,678 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_dec_top_#t~post31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 16:41:19,678 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 16:41:19,678 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_dec_top_#t~post31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 16:41:19,679 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 16:41:19,679 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#t~ret46| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 16:41:19,679 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_dec_top_#t~post31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 16:41:19,679 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#t~ret46| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 16:41:19,680 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_dec_top_#t~post31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 16:41:19,680 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#t~ret46| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 16:41:19,680 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#t~ret46| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 16:41:19,681 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_get_top_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 16:41:19,681 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#t~ret46| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 16:41:19,681 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#t~ret46| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 16:41:19,681 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_get_top_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 16:41:19,682 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_get_top_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 16:41:19,682 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#t~ret38| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 16:41:19,682 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#t~ret38| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 16:41:19,683 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_pop_~stack.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 16:41:19,683 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#t~ret38| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 16:41:19,683 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_pop_~stack.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 16:41:19,683 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#t~mem39| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 16:41:19,684 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#t~mem39| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 16:41:19,684 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 16:41:19,684 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#t~ret38| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 16:41:19,684 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#t~mem39| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 16:41:19,688 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_#in~x| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 16:41:19,688 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~ret43| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 16:41:19,689 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~nondet41| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 16:41:19,689 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 16:41:19,689 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_inc_top_#t~post30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 16:41:19,689 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 16:41:19,689 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_push_~stack.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 16:41:19,690 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_#t~ret35| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 16:41:19,690 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 16:41:19,690 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 16:41:19,690 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_#t~nondet33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 16:41:19,691 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_push_~stack.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 16:41:19,691 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 16:41:19,691 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~tmp~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 16:41:19,691 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_#in~stack.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 16:41:19,692 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~post40| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 16:41:19,692 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_push_~x not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 16:41:19,692 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 16:41:19,692 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_get_top_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 16:41:19,693 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 16:41:19,693 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 16:41:19,693 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~nondet42| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 16:41:19,693 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_#in~stack.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 16:41:19,702 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#t~ret38| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 16:41:19,702 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_pop_~stack.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 16:41:19,702 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#t~nondet45| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 16:41:19,703 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 16:41:19,703 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#t~post44| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 16:41:19,703 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 16:41:19,703 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 16:41:19,704 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_dec_top_#t~post31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 16:41:19,704 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#in~stack.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 16:41:19,704 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#t~ret46| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 16:41:19,704 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_get_top_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 16:41:19,705 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 16:41:19,705 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#t~nondet36| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 16:41:19,705 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#t~mem39| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 16:41:19,705 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 16:41:19,705 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#in~stack.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 16:41:19,706 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 16:41:19,706 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_pop_~stack.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 16:41:19,736 INFO L253 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2020-10-15 16:41:19,761 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-15 16:41:19,761 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-15 16:41:19,761 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-10-15 16:41:19,762 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-15 16:41:19,762 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-15 16:41:19,762 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-15 16:41:19,762 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-15 16:41:19,762 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-15 16:41:19,780 INFO L129 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2020-10-15 16:41:19,783 INFO L144 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 137 places, 142 transitions, 306 flow [2020-10-15 16:41:19,786 INFO L111 LiptonReduction]: Starting Lipton reduction on Petri net that has 137 places, 142 transitions, 306 flow [2020-10-15 16:41:19,789 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 137 places, 142 transitions, 306 flow [2020-10-15 16:41:19,857 INFO L129 PetriNetUnfolder]: 11/142 cut-off events. [2020-10-15 16:41:19,858 INFO L130 PetriNetUnfolder]: For 4/4 co-relation queries the response was YES. [2020-10-15 16:41:19,867 INFO L80 FinitePrefix]: Finished finitePrefix Result has 153 conditions, 142 events. 11/142 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 344 event pairs, 0 based on Foata normal form. 0/130 useless extension candidates. Maximal degree in co-relation 106. Up to 3 conditions per place. [2020-10-15 16:41:19,874 INFO L117 LiptonReduction]: Number of co-enabled transitions 5744 [2020-10-15 16:41:22,692 WARN L193 SmtUtils]: Spent 254.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 80 [2020-10-15 16:41:22,808 WARN L193 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 76 [2020-10-15 16:41:23,454 WARN L193 SmtUtils]: Spent 534.00 ms on a formula simplification. DAG size of input: 125 DAG size of output: 121 [2020-10-15 16:41:23,711 WARN L193 SmtUtils]: Spent 252.00 ms on a formula simplification that was a NOOP. DAG size: 117 [2020-10-15 16:41:23,773 INFO L132 LiptonReduction]: Checked pairs total: 10078 [2020-10-15 16:41:23,773 INFO L134 LiptonReduction]: Total number of compositions: 129 [2020-10-15 16:41:23,782 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 40 places, 40 transitions, 102 flow [2020-10-15 16:41:23,810 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 331 states. [2020-10-15 16:41:23,813 INFO L276 IsEmpty]: Start isEmpty. Operand 331 states. [2020-10-15 16:41:23,821 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2020-10-15 16:41:23,821 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 16:41:23,822 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2020-10-15 16:41:23,823 INFO L429 AbstractCegarLoop]: === Iteration 1 === [t1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION, t1Err0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 16:41:23,829 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 16:41:23,830 INFO L82 PathProgramCache]: Analyzing trace with hash 89961792, now seen corresponding path program 1 times [2020-10-15 16:41:23,841 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 16:41:23,842 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [655093925] [2020-10-15 16:41:23,842 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 16:41:23,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 16:41:24,085 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 16:41:24,086 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [655093925] [2020-10-15 16:41:24,087 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 16:41:24,087 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-15 16:41:24,088 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1658690815] [2020-10-15 16:41:24,094 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-15 16:41:24,094 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 16:41:24,115 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-15 16:41:24,115 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-15 16:41:24,118 INFO L87 Difference]: Start difference. First operand 331 states. Second operand 3 states. [2020-10-15 16:41:24,206 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 16:41:24,206 INFO L93 Difference]: Finished difference Result 504 states and 1247 transitions. [2020-10-15 16:41:24,207 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-15 16:41:24,208 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 6 [2020-10-15 16:41:24,209 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 16:41:24,229 INFO L225 Difference]: With dead ends: 504 [2020-10-15 16:41:24,229 INFO L226 Difference]: Without dead ends: 460 [2020-10-15 16:41:24,231 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 [2020-10-15 16:41:24,257 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 460 states. [2020-10-15 16:41:24,315 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 460 to 420. [2020-10-15 16:41:24,318 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 420 states. [2020-10-15 16:41:24,325 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 420 states to 420 states and 1095 transitions. [2020-10-15 16:41:24,327 INFO L78 Accepts]: Start accepts. Automaton has 420 states and 1095 transitions. Word has length 6 [2020-10-15 16:41:24,327 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 16:41:24,328 INFO L481 AbstractCegarLoop]: Abstraction has 420 states and 1095 transitions. [2020-10-15 16:41:24,328 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-15 16:41:24,328 INFO L276 IsEmpty]: Start isEmpty. Operand 420 states and 1095 transitions. [2020-10-15 16:41:24,330 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-10-15 16:41:24,330 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 16:41:24,330 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 16:41:24,331 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-15 16:41:24,334 INFO L429 AbstractCegarLoop]: === Iteration 2 === [t1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION, t1Err0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 16:41:24,334 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 16:41:24,334 INFO L82 PathProgramCache]: Analyzing trace with hash -1286121651, now seen corresponding path program 1 times [2020-10-15 16:41:24,335 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 16:41:24,337 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1788513714] [2020-10-15 16:41:24,338 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 16:41:24,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 16:41:24,474 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 16:41:24,475 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1788513714] [2020-10-15 16:41:24,475 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 16:41:24,476 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-15 16:41:24,476 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1878752667] [2020-10-15 16:41:24,478 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-15 16:41:24,478 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 16:41:24,478 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-15 16:41:24,479 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-15 16:41:24,479 INFO L87 Difference]: Start difference. First operand 420 states and 1095 transitions. Second operand 3 states. [2020-10-15 16:41:24,504 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 16:41:24,504 INFO L93 Difference]: Finished difference Result 464 states and 1205 transitions. [2020-10-15 16:41:24,505 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-15 16:41:24,505 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 10 [2020-10-15 16:41:24,505 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 16:41:24,509 INFO L225 Difference]: With dead ends: 464 [2020-10-15 16:41:24,510 INFO L226 Difference]: Without dead ends: 464 [2020-10-15 16:41:24,511 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 [2020-10-15 16:41:24,515 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 464 states. [2020-10-15 16:41:24,550 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 464 to 464. [2020-10-15 16:41:24,552 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 464 states. [2020-10-15 16:41:24,555 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 464 states to 464 states and 1205 transitions. [2020-10-15 16:41:24,555 INFO L78 Accepts]: Start accepts. Automaton has 464 states and 1205 transitions. Word has length 10 [2020-10-15 16:41:24,555 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 16:41:24,555 INFO L481 AbstractCegarLoop]: Abstraction has 464 states and 1205 transitions. [2020-10-15 16:41:24,555 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-15 16:41:24,556 INFO L276 IsEmpty]: Start isEmpty. Operand 464 states and 1205 transitions. [2020-10-15 16:41:24,560 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-10-15 16:41:24,560 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 16:41:24,560 INFO L422 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 16:41:24,560 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-15 16:41:24,560 INFO L429 AbstractCegarLoop]: === Iteration 3 === [t1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION, t1Err0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 16:41:24,561 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 16:41:24,562 INFO L82 PathProgramCache]: Analyzing trace with hash 554739665, now seen corresponding path program 1 times [2020-10-15 16:41:24,562 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 16:41:24,563 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [535767716] [2020-10-15 16:41:24,563 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 16:41:24,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 16:41:24,667 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 1 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 16:41:24,667 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [535767716] [2020-10-15 16:41:24,668 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1335667504] [2020-10-15 16:41:24,668 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 [2020-10-15 16:41:24,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 16:41:24,759 INFO L263 TraceCheckSpWp]: Trace formula consists of 153 conjuncts, 4 conjunts are in the unsatisfiable core [2020-10-15 16:41:24,765 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-15 16:41:24,810 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 1 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 16:41:24,811 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-10-15 16:41:24,811 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 6 [2020-10-15 16:41:24,812 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1476838976] [2020-10-15 16:41:24,812 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-15 16:41:24,812 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 16:41:24,813 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-15 16:41:24,813 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-10-15 16:41:24,813 INFO L87 Difference]: Start difference. First operand 464 states and 1205 transitions. Second operand 7 states. [2020-10-15 16:41:24,913 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 16:41:24,913 INFO L93 Difference]: Finished difference Result 866 states and 2152 transitions. [2020-10-15 16:41:24,914 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-15 16:41:24,914 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 13 [2020-10-15 16:41:24,914 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 16:41:24,920 INFO L225 Difference]: With dead ends: 866 [2020-10-15 16:41:24,920 INFO L226 Difference]: Without dead ends: 851 [2020-10-15 16:41:24,920 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=28, Invalid=44, Unknown=0, NotChecked=0, Total=72 [2020-10-15 16:41:24,923 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 851 states. [2020-10-15 16:41:24,939 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 851 to 575. [2020-10-15 16:41:24,940 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 575 states. [2020-10-15 16:41:24,943 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 575 states to 575 states and 1484 transitions. [2020-10-15 16:41:24,943 INFO L78 Accepts]: Start accepts. Automaton has 575 states and 1484 transitions. Word has length 13 [2020-10-15 16:41:24,944 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 16:41:24,944 INFO L481 AbstractCegarLoop]: Abstraction has 575 states and 1484 transitions. [2020-10-15 16:41:24,944 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-15 16:41:24,944 INFO L276 IsEmpty]: Start isEmpty. Operand 575 states and 1484 transitions. [2020-10-15 16:41:24,946 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2020-10-15 16:41:24,947 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 16:41:24,947 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 16:41:25,160 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable2 [2020-10-15 16:41:25,161 INFO L429 AbstractCegarLoop]: === Iteration 4 === [t1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION, t1Err0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 16:41:25,161 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 16:41:25,162 INFO L82 PathProgramCache]: Analyzing trace with hash -1825595924, now seen corresponding path program 1 times [2020-10-15 16:41:25,162 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 16:41:25,163 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [784559863] [2020-10-15 16:41:25,163 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 16:41:25,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 16:41:25,251 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 16:41:25,252 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [784559863] [2020-10-15 16:41:25,252 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 16:41:25,252 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-15 16:41:25,252 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2035662209] [2020-10-15 16:41:25,253 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-15 16:41:25,253 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 16:41:25,253 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-15 16:41:25,253 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-15 16:41:25,254 INFO L87 Difference]: Start difference. First operand 575 states and 1484 transitions. Second operand 3 states. [2020-10-15 16:41:25,282 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 16:41:25,282 INFO L93 Difference]: Finished difference Result 304 states and 670 transitions. [2020-10-15 16:41:25,283 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-15 16:41:25,283 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 16 [2020-10-15 16:41:25,283 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 16:41:25,286 INFO L225 Difference]: With dead ends: 304 [2020-10-15 16:41:25,286 INFO L226 Difference]: Without dead ends: 304 [2020-10-15 16:41:25,286 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 [2020-10-15 16:41:25,288 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 304 states. [2020-10-15 16:41:25,294 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 304 to 294. [2020-10-15 16:41:25,294 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 294 states. [2020-10-15 16:41:25,296 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 294 states to 294 states and 643 transitions. [2020-10-15 16:41:25,296 INFO L78 Accepts]: Start accepts. Automaton has 294 states and 643 transitions. Word has length 16 [2020-10-15 16:41:25,297 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 16:41:25,297 INFO L481 AbstractCegarLoop]: Abstraction has 294 states and 643 transitions. [2020-10-15 16:41:25,297 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-15 16:41:25,298 INFO L276 IsEmpty]: Start isEmpty. Operand 294 states and 643 transitions. [2020-10-15 16:41:25,299 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-10-15 16:41:25,299 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 16:41:25,300 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 16:41:25,300 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-15 16:41:25,300 INFO L429 AbstractCegarLoop]: === Iteration 5 === [t1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION, t1Err0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 16:41:25,300 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 16:41:25,301 INFO L82 PathProgramCache]: Analyzing trace with hash 1573705314, now seen corresponding path program 1 times [2020-10-15 16:41:25,301 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 16:41:25,301 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [780904861] [2020-10-15 16:41:25,301 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 16:41:25,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 16:41:25,407 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 16:41:25,407 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [780904861] [2020-10-15 16:41:25,408 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 16:41:25,408 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-15 16:41:25,408 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1629556006] [2020-10-15 16:41:25,409 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-15 16:41:25,412 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 16:41:25,412 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-15 16:41:25,413 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-15 16:41:25,413 INFO L87 Difference]: Start difference. First operand 294 states and 643 transitions. Second operand 3 states. [2020-10-15 16:41:25,456 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 16:41:25,457 INFO L93 Difference]: Finished difference Result 372 states and 811 transitions. [2020-10-15 16:41:25,457 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-15 16:41:25,458 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 17 [2020-10-15 16:41:25,458 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 16:41:25,460 INFO L225 Difference]: With dead ends: 372 [2020-10-15 16:41:25,461 INFO L226 Difference]: Without dead ends: 372 [2020-10-15 16:41:25,461 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 [2020-10-15 16:41:25,463 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 372 states. [2020-10-15 16:41:25,469 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 372 to 295. [2020-10-15 16:41:25,470 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 295 states. [2020-10-15 16:41:25,471 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 295 states to 295 states and 647 transitions. [2020-10-15 16:41:25,471 INFO L78 Accepts]: Start accepts. Automaton has 295 states and 647 transitions. Word has length 17 [2020-10-15 16:41:25,473 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 16:41:25,473 INFO L481 AbstractCegarLoop]: Abstraction has 295 states and 647 transitions. [2020-10-15 16:41:25,473 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-15 16:41:25,473 INFO L276 IsEmpty]: Start isEmpty. Operand 295 states and 647 transitions. [2020-10-15 16:41:25,479 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2020-10-15 16:41:25,479 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 16:41:25,480 INFO L422 BasicCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1] [2020-10-15 16:41:25,480 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-15 16:41:25,480 INFO L429 AbstractCegarLoop]: === Iteration 6 === [t1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION, t1Err0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 16:41:25,480 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 16:41:25,480 INFO L82 PathProgramCache]: Analyzing trace with hash -1192042464, now seen corresponding path program 2 times [2020-10-15 16:41:25,481 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 16:41:25,481 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1501792827] [2020-10-15 16:41:25,481 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 16:41:25,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 16:41:25,596 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 2 proven. 11 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 16:41:25,598 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1501792827] [2020-10-15 16:41:25,599 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1219660734] [2020-10-15 16:41:25,599 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 [2020-10-15 16:41:25,692 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2020-10-15 16:41:25,693 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-10-15 16:41:25,695 INFO L263 TraceCheckSpWp]: Trace formula consists of 198 conjuncts, 6 conjunts are in the unsatisfiable core [2020-10-15 16:41:25,697 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-15 16:41:25,731 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 2 proven. 11 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 16:41:25,732 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-10-15 16:41:25,732 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 8 [2020-10-15 16:41:25,732 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [944839633] [2020-10-15 16:41:25,733 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-15 16:41:25,733 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 16:41:25,733 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-15 16:41:25,733 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2020-10-15 16:41:25,734 INFO L87 Difference]: Start difference. First operand 295 states and 647 transitions. Second operand 9 states. [2020-10-15 16:41:25,824 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 16:41:25,825 INFO L93 Difference]: Finished difference Result 542 states and 1156 transitions. [2020-10-15 16:41:25,825 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-15 16:41:25,825 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 20 [2020-10-15 16:41:25,826 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 16:41:25,829 INFO L225 Difference]: With dead ends: 542 [2020-10-15 16:41:25,829 INFO L226 Difference]: Without dead ends: 542 [2020-10-15 16:41:25,830 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=48, Invalid=84, Unknown=0, NotChecked=0, Total=132 [2020-10-15 16:41:25,831 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 542 states. [2020-10-15 16:41:25,839 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 542 to 372. [2020-10-15 16:41:25,839 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 372 states. [2020-10-15 16:41:25,841 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 372 states to 372 states and 816 transitions. [2020-10-15 16:41:25,841 INFO L78 Accepts]: Start accepts. Automaton has 372 states and 816 transitions. Word has length 20 [2020-10-15 16:41:25,842 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 16:41:25,842 INFO L481 AbstractCegarLoop]: Abstraction has 372 states and 816 transitions. [2020-10-15 16:41:25,842 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-15 16:41:25,842 INFO L276 IsEmpty]: Start isEmpty. Operand 372 states and 816 transitions. [2020-10-15 16:41:25,843 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2020-10-15 16:41:25,843 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 16:41:25,843 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] [2020-10-15 16:41:26,056 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-15 16:41:26,057 INFO L429 AbstractCegarLoop]: === Iteration 7 === [t1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION, t1Err0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 16:41:26,057 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 16:41:26,058 INFO L82 PathProgramCache]: Analyzing trace with hash 1105063959, now seen corresponding path program 1 times [2020-10-15 16:41:26,058 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 16:41:26,059 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1690015288] [2020-10-15 16:41:26,059 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 16:41:26,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 16:41:26,556 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 16:41:26,557 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1690015288] [2020-10-15 16:41:26,557 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 16:41:26,557 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2020-10-15 16:41:26,557 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [458082150] [2020-10-15 16:41:26,558 INFO L461 AbstractCegarLoop]: Interpolant automaton has 14 states [2020-10-15 16:41:26,558 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 16:41:26,558 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2020-10-15 16:41:26,559 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=152, Unknown=0, NotChecked=0, Total=182 [2020-10-15 16:41:26,559 INFO L87 Difference]: Start difference. First operand 372 states and 816 transitions. Second operand 14 states. [2020-10-15 16:41:27,890 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 16:41:27,890 INFO L93 Difference]: Finished difference Result 703 states and 1483 transitions. [2020-10-15 16:41:27,891 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2020-10-15 16:41:27,891 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 21 [2020-10-15 16:41:27,891 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 16:41:27,895 INFO L225 Difference]: With dead ends: 703 [2020-10-15 16:41:27,896 INFO L226 Difference]: Without dead ends: 631 [2020-10-15 16:41:27,896 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 94 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=136, Invalid=566, Unknown=0, NotChecked=0, Total=702 [2020-10-15 16:41:27,898 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 631 states. [2020-10-15 16:41:27,908 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 631 to 422. [2020-10-15 16:41:27,908 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 422 states. [2020-10-15 16:41:27,910 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 422 states to 422 states and 927 transitions. [2020-10-15 16:41:27,910 INFO L78 Accepts]: Start accepts. Automaton has 422 states and 927 transitions. Word has length 21 [2020-10-15 16:41:27,910 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 16:41:27,911 INFO L481 AbstractCegarLoop]: Abstraction has 422 states and 927 transitions. [2020-10-15 16:41:27,911 INFO L482 AbstractCegarLoop]: Interpolant automaton has 14 states. [2020-10-15 16:41:27,911 INFO L276 IsEmpty]: Start isEmpty. Operand 422 states and 927 transitions. [2020-10-15 16:41:27,912 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2020-10-15 16:41:27,912 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 16:41:27,913 INFO L422 BasicCegarLoop]: trace histogram [4, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1] [2020-10-15 16:41:27,913 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-15 16:41:27,913 INFO L429 AbstractCegarLoop]: === Iteration 8 === [t1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION, t1Err0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 16:41:27,913 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 16:41:27,913 INFO L82 PathProgramCache]: Analyzing trace with hash 790528241, now seen corresponding path program 3 times [2020-10-15 16:41:27,914 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 16:41:27,914 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1296049289] [2020-10-15 16:41:27,914 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 16:41:27,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 16:41:28,006 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 3 proven. 27 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 16:41:28,007 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1296049289] [2020-10-15 16:41:28,007 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1329017637] [2020-10-15 16:41:28,007 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 [2020-10-15 16:41:28,119 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 4 check-sat command(s) [2020-10-15 16:41:28,120 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-10-15 16:41:28,122 INFO L263 TraceCheckSpWp]: Trace formula consists of 243 conjuncts, 8 conjunts are in the unsatisfiable core [2020-10-15 16:41:28,124 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-15 16:41:28,158 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 3 proven. 27 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 16:41:28,159 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-10-15 16:41:28,159 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 10 [2020-10-15 16:41:28,159 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [17486536] [2020-10-15 16:41:28,160 INFO L461 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-10-15 16:41:28,160 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 16:41:28,160 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-10-15 16:41:28,161 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2020-10-15 16:41:28,161 INFO L87 Difference]: Start difference. First operand 422 states and 927 transitions. Second operand 11 states. [2020-10-15 16:41:28,297 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 16:41:28,298 INFO L93 Difference]: Finished difference Result 759 states and 1604 transitions. [2020-10-15 16:41:28,298 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-15 16:41:28,298 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 27 [2020-10-15 16:41:28,298 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 16:41:28,303 INFO L225 Difference]: With dead ends: 759 [2020-10-15 16:41:28,303 INFO L226 Difference]: Without dead ends: 759 [2020-10-15 16:41:28,304 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 26 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=73, Invalid=137, Unknown=0, NotChecked=0, Total=210 [2020-10-15 16:41:28,306 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 759 states. [2020-10-15 16:41:28,316 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 759 to 499. [2020-10-15 16:41:28,316 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 499 states. [2020-10-15 16:41:28,318 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 499 states to 499 states and 1096 transitions. [2020-10-15 16:41:28,319 INFO L78 Accepts]: Start accepts. Automaton has 499 states and 1096 transitions. Word has length 27 [2020-10-15 16:41:28,319 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 16:41:28,319 INFO L481 AbstractCegarLoop]: Abstraction has 499 states and 1096 transitions. [2020-10-15 16:41:28,319 INFO L482 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-10-15 16:41:28,319 INFO L276 IsEmpty]: Start isEmpty. Operand 499 states and 1096 transitions. [2020-10-15 16:41:28,321 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2020-10-15 16:41:28,321 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 16:41:28,321 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] [2020-10-15 16:41:28,535 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,4 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-15 16:41:28,535 INFO L429 AbstractCegarLoop]: === Iteration 9 === [t1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION, t1Err0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 16:41:28,536 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 16:41:28,536 INFO L82 PathProgramCache]: Analyzing trace with hash -859233366, now seen corresponding path program 2 times [2020-10-15 16:41:28,536 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 16:41:28,537 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1663344976] [2020-10-15 16:41:28,537 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 16:41:28,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 16:41:28,920 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 16:41:28,921 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1663344976] [2020-10-15 16:41:28,921 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [469345483] [2020-10-15 16:41:28,921 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 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 [2020-10-15 16:41:29,003 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2020-10-15 16:41:29,003 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-10-15 16:41:29,005 INFO L263 TraceCheckSpWp]: Trace formula consists of 166 conjuncts, 43 conjunts are in the unsatisfiable core [2020-10-15 16:41:29,008 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-15 16:41:29,218 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 19 treesize of output 15 [2020-10-15 16:41:29,219 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-10-15 16:41:29,251 INFO L625 ElimStorePlain]: treesize reduction 3, result has 92.3 percent of original size [2020-10-15 16:41:29,258 INFO L545 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-10-15 16:41:29,258 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:43, output treesize:50 [2020-10-15 16:41:29,684 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-10-15 16:41:29,716 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 76 treesize of output 28 [2020-10-15 16:41:29,825 INFO L721 QuantifierPusher]: Run 10 iterations of DualJunctionQuantifierElimination maybe there is a nontermination bug. [2020-10-15 16:41:30,149 INFO L721 QuantifierPusher]: Run 20 iterations of DualJunctionQuantifierElimination maybe there is a nontermination bug. [2020-10-15 16:41:30,675 INFO L721 QuantifierPusher]: Run 30 iterations of DualJunctionQuantifierElimination maybe there is a nontermination bug. [2020-10-15 16:41:34,947 INFO L545 ElimStorePlain]: Start of recursive call 2: 18 dim-0 vars, End of recursive call: 18 dim-0 vars, and 1 xjuncts. [2020-10-15 16:41:34,966 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 79 treesize of output 31 [2020-10-15 16:41:35,063 INFO L545 ElimStorePlain]: Start of recursive call 3: 6 dim-0 vars, End of recursive call: 6 dim-0 vars, and 1 xjuncts. [2020-10-15 16:41:35,917 WARN L193 SmtUtils]: Spent 852.00 ms on a formula simplification. DAG size of input: 202 DAG size of output: 120 [2020-10-15 16:41:35,918 INFO L625 ElimStorePlain]: treesize reduction 263, result has 59.3 percent of original size [2020-10-15 16:41:37,601 INFO L545 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-2 vars, End of recursive call: 18 dim-0 vars, and 1 xjuncts. [2020-10-15 16:41:37,601 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:156, output treesize:383 [2020-10-15 16:41:39,234 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-10-15 16:41:39,234 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-10-15 16:41:39,234 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [14] total 26 [2020-10-15 16:41:39,234 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1126943622] [2020-10-15 16:41:39,235 INFO L461 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-10-15 16:41:39,235 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 16:41:39,235 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-10-15 16:41:39,236 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=69, Invalid=633, Unknown=0, NotChecked=0, Total=702 [2020-10-15 16:41:39,236 INFO L87 Difference]: Start difference. First operand 499 states and 1096 transitions. Second operand 13 states. [2020-10-15 16:41:41,748 WARN L193 SmtUtils]: Spent 240.00 ms on a formula simplification that was a NOOP. DAG size: 158 [2020-10-15 16:41:42,764 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 16:41:42,764 INFO L93 Difference]: Finished difference Result 850 states and 1830 transitions. [2020-10-15 16:41:42,764 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2020-10-15 16:41:42,764 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 28 [2020-10-15 16:41:42,765 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 16:41:42,770 INFO L225 Difference]: With dead ends: 850 [2020-10-15 16:41:42,770 INFO L226 Difference]: Without dead ends: 850 [2020-10-15 16:41:42,772 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 77 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 433 ImplicationChecksByTransitivity, 3.2s TimeCoverageRelationStatistics Valid=247, Invalid=1915, Unknown=0, NotChecked=0, Total=2162 [2020-10-15 16:41:42,774 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 850 states. [2020-10-15 16:41:42,785 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 850 to 563. [2020-10-15 16:41:42,786 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 563 states. [2020-10-15 16:41:42,788 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 563 states to 563 states and 1242 transitions. [2020-10-15 16:41:42,788 INFO L78 Accepts]: Start accepts. Automaton has 563 states and 1242 transitions. Word has length 28 [2020-10-15 16:41:42,788 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 16:41:42,789 INFO L481 AbstractCegarLoop]: Abstraction has 563 states and 1242 transitions. [2020-10-15 16:41:42,789 INFO L482 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-10-15 16:41:42,789 INFO L276 IsEmpty]: Start isEmpty. Operand 563 states and 1242 transitions. [2020-10-15 16:41:42,790 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2020-10-15 16:41:42,790 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 16:41:42,791 INFO L422 BasicCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 16:41:42,991 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,5 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-15 16:41:42,992 INFO L429 AbstractCegarLoop]: === Iteration 10 === [t1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION, t1Err0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 16:41:42,992 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 16:41:42,992 INFO L82 PathProgramCache]: Analyzing trace with hash 585117152, now seen corresponding path program 1 times [2020-10-15 16:41:42,993 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 16:41:42,993 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [139259286] [2020-10-15 16:41:42,994 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 16:41:43,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 16:41:43,090 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 2 proven. 9 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-10-15 16:41:43,091 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [139259286] [2020-10-15 16:41:43,091 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [752740515] [2020-10-15 16:41:43,091 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY 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 [2020-10-15 16:41:43,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 16:41:43,187 INFO L263 TraceCheckSpWp]: Trace formula consists of 246 conjuncts, 8 conjunts are in the unsatisfiable core [2020-10-15 16:41:43,188 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-15 16:41:43,211 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 2 proven. 9 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-10-15 16:41:43,211 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-10-15 16:41:43,211 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 9 [2020-10-15 16:41:43,212 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [131443138] [2020-10-15 16:41:43,212 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-15 16:41:43,212 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 16:41:43,213 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-15 16:41:43,213 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=64, Unknown=0, NotChecked=0, Total=90 [2020-10-15 16:41:43,213 INFO L87 Difference]: Start difference. First operand 563 states and 1242 transitions. Second operand 10 states. [2020-10-15 16:41:43,345 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 16:41:43,345 INFO L93 Difference]: Finished difference Result 912 states and 1935 transitions. [2020-10-15 16:41:43,345 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-15 16:41:43,345 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 31 [2020-10-15 16:41:43,346 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 16:41:43,351 INFO L225 Difference]: With dead ends: 912 [2020-10-15 16:41:43,351 INFO L226 Difference]: Without dead ends: 912 [2020-10-15 16:41:43,351 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=60, Invalid=150, Unknown=0, NotChecked=0, Total=210 [2020-10-15 16:41:43,353 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 912 states. [2020-10-15 16:41:43,367 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 912 to 607. [2020-10-15 16:41:43,367 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 607 states. [2020-10-15 16:41:43,369 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 607 states to 607 states and 1366 transitions. [2020-10-15 16:41:43,369 INFO L78 Accepts]: Start accepts. Automaton has 607 states and 1366 transitions. Word has length 31 [2020-10-15 16:41:43,370 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 16:41:43,370 INFO L481 AbstractCegarLoop]: Abstraction has 607 states and 1366 transitions. [2020-10-15 16:41:43,370 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-15 16:41:43,370 INFO L276 IsEmpty]: Start isEmpty. Operand 607 states and 1366 transitions. [2020-10-15 16:41:43,372 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2020-10-15 16:41:43,372 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 16:41:43,372 INFO L422 BasicCegarLoop]: trace histogram [5, 4, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1] [2020-10-15 16:41:43,587 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2020-10-15 16:41:43,588 INFO L429 AbstractCegarLoop]: === Iteration 11 === [t1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION, t1Err0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 16:41:43,588 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 16:41:43,588 INFO L82 PathProgramCache]: Analyzing trace with hash 225739520, now seen corresponding path program 4 times [2020-10-15 16:41:43,589 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 16:41:43,589 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [8532613] [2020-10-15 16:41:43,589 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 16:41:43,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 16:41:43,752 INFO L134 CoverageAnalysis]: Checked inductivity of 54 backedges. 4 proven. 50 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 16:41:43,752 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [8532613] [2020-10-15 16:41:43,753 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1328050671] [2020-10-15 16:41:43,753 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 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 [2020-10-15 16:41:43,858 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2020-10-15 16:41:43,858 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-10-15 16:41:43,860 INFO L263 TraceCheckSpWp]: Trace formula consists of 288 conjuncts, 10 conjunts are in the unsatisfiable core [2020-10-15 16:41:43,863 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-15 16:41:43,885 INFO L134 CoverageAnalysis]: Checked inductivity of 54 backedges. 4 proven. 50 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 16:41:43,885 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-10-15 16:41:43,886 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10] total 12 [2020-10-15 16:41:43,886 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2025305016] [2020-10-15 16:41:43,886 INFO L461 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-10-15 16:41:43,886 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 16:41:43,887 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-10-15 16:41:43,887 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2020-10-15 16:41:43,887 INFO L87 Difference]: Start difference. First operand 607 states and 1366 transitions. Second operand 13 states. [2020-10-15 16:41:44,041 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 16:41:44,042 INFO L93 Difference]: Finished difference Result 984 states and 2121 transitions. [2020-10-15 16:41:44,042 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-10-15 16:41:44,042 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 34 [2020-10-15 16:41:44,043 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 16:41:44,049 INFO L225 Difference]: With dead ends: 984 [2020-10-15 16:41:44,049 INFO L226 Difference]: Without dead ends: 984 [2020-10-15 16:41:44,049 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=103, Invalid=203, Unknown=0, NotChecked=0, Total=306 [2020-10-15 16:41:44,052 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 984 states. [2020-10-15 16:41:44,066 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 984 to 684. [2020-10-15 16:41:44,067 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 684 states. [2020-10-15 16:41:44,069 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 684 states to 684 states and 1535 transitions. [2020-10-15 16:41:44,069 INFO L78 Accepts]: Start accepts. Automaton has 684 states and 1535 transitions. Word has length 34 [2020-10-15 16:41:44,069 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 16:41:44,070 INFO L481 AbstractCegarLoop]: Abstraction has 684 states and 1535 transitions. [2020-10-15 16:41:44,070 INFO L482 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-10-15 16:41:44,070 INFO L276 IsEmpty]: Start isEmpty. Operand 684 states and 1535 transitions. [2020-10-15 16:41:44,072 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2020-10-15 16:41:44,072 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 16:41:44,072 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 16:41:44,286 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,7 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-15 16:41:44,287 INFO L429 AbstractCegarLoop]: === Iteration 12 === [t1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION, t1Err0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 16:41:44,287 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 16:41:44,287 INFO L82 PathProgramCache]: Analyzing trace with hash -1848776679, now seen corresponding path program 1 times [2020-10-15 16:41:44,287 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 16:41:44,288 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2110709346] [2020-10-15 16:41:44,288 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 16:41:44,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 16:41:45,026 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 16:41:45,027 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2110709346] [2020-10-15 16:41:45,027 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [987865031] [2020-10-15 16:41:45,027 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 8 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-15 16:41:45,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 16:41:45,111 INFO L263 TraceCheckSpWp]: Trace formula consists of 246 conjuncts, 60 conjunts are in the unsatisfiable core [2020-10-15 16:41:45,113 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-15 16:41:45,280 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 19 treesize of output 15 [2020-10-15 16:41:45,281 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-10-15 16:41:45,304 INFO L625 ElimStorePlain]: treesize reduction 3, result has 92.3 percent of original size [2020-10-15 16:41:45,306 INFO L545 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-10-15 16:41:45,307 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:43, output treesize:50 [2020-10-15 16:41:45,676 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-10-15 16:41:45,677 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 69 treesize of output 41 [2020-10-15 16:41:45,678 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-10-15 16:41:45,699 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-15 16:41:45,701 INFO L545 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-10-15 16:41:45,701 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 4 variables, input treesize:75, output treesize:54 [2020-10-15 16:41:46,176 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-10-15 16:41:46,204 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 79 treesize of output 31 [2020-10-15 16:41:46,216 INFO L545 ElimStorePlain]: Start of recursive call 2: 2 dim-0 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2020-10-15 16:41:46,221 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 76 treesize of output 28 [2020-10-15 16:41:46,270 INFO L721 QuantifierPusher]: Run 10 iterations of DualJunctionQuantifierElimination maybe there is a nontermination bug. [2020-10-15 16:41:46,450 INFO L721 QuantifierPusher]: Run 20 iterations of DualJunctionQuantifierElimination maybe there is a nontermination bug. [2020-10-15 16:41:46,842 INFO L721 QuantifierPusher]: Run 30 iterations of DualJunctionQuantifierElimination maybe there is a nontermination bug. [2020-10-15 16:41:47,319 INFO L721 QuantifierPusher]: Run 40 iterations of DualJunctionQuantifierElimination maybe there is a nontermination bug. [2020-10-15 16:41:47,839 INFO L721 QuantifierPusher]: Run 50 iterations of DualJunctionQuantifierElimination maybe there is a nontermination bug. [2020-10-15 16:41:48,558 INFO L721 QuantifierPusher]: Run 60 iterations of DualJunctionQuantifierElimination maybe there is a nontermination bug. [2020-10-15 16:44:50,183 INFO L545 ElimStorePlain]: Start of recursive call 3: 40 dim-0 vars, End of recursive call: 40 dim-0 vars, and 1 xjuncts. [2020-10-15 16:44:57,316 WARN L193 SmtUtils]: Spent 7.13 s on a formula simplification. DAG size of input: 294 DAG size of output: 235 [2020-10-15 16:44:57,318 INFO L625 ElimStorePlain]: treesize reduction 276, result has 75.9 percent of original size [2020-10-15 16:45:00,467 INFO L545 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-2 vars, End of recursive call: 35 dim-0 vars, and 1 xjuncts. [2020-10-15 16:45:00,467 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:156, output treesize:759 [2020-10-15 16:45:04,253 WARN L193 SmtUtils]: Spent 399.00 ms on a formula simplification that was a NOOP. DAG size: 221 [2020-10-15 16:45:04,263 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 1 proven. 14 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 16:45:04,264 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-10-15 16:45:04,264 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [18, 18] total 36 [2020-10-15 16:45:04,265 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1958724987] [2020-10-15 16:45:04,265 INFO L461 AbstractCegarLoop]: Interpolant automaton has 37 states [2020-10-15 16:45:04,265 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 16:45:04,266 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 37 interpolants. [2020-10-15 16:45:04,272 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=105, Invalid=1227, Unknown=0, NotChecked=0, Total=1332 [2020-10-15 16:45:04,273 INFO L87 Difference]: Start difference. First operand 684 states and 1535 transitions. Second operand 37 states. [2020-10-15 16:45:05,514 WARN L193 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 38 [2020-10-15 16:45:05,806 WARN L193 SmtUtils]: Spent 175.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 51 [2020-10-15 16:45:06,154 WARN L193 SmtUtils]: Spent 197.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 54 [2020-10-15 16:45:06,367 WARN L193 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 43 [2020-10-15 16:45:06,636 WARN L193 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 48 [2020-10-15 16:45:06,862 WARN L193 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 46 [2020-10-15 16:45:07,518 WARN L193 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 48 [2020-10-15 16:45:09,107 WARN L193 SmtUtils]: Spent 988.00 ms on a formula simplification. DAG size of input: 254 DAG size of output: 252 [2020-10-15 16:45:09,320 WARN L193 SmtUtils]: Spent 126.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 50 [2020-10-15 16:45:09,741 WARN L193 SmtUtils]: Spent 201.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 59 [2020-10-15 16:45:10,432 WARN L193 SmtUtils]: Spent 384.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 77 [2020-10-15 16:45:10,789 WARN L193 SmtUtils]: Spent 176.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 60 [2020-10-15 16:45:11,181 WARN L193 SmtUtils]: Spent 125.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 51 [2020-10-15 16:45:11,653 WARN L193 SmtUtils]: Spent 235.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 66 [2020-10-15 16:45:12,109 WARN L193 SmtUtils]: Spent 190.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 61 [2020-10-15 16:45:12,834 WARN L193 SmtUtils]: Spent 253.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 72 [2020-10-15 16:45:14,318 WARN L193 SmtUtils]: Spent 905.00 ms on a formula simplification. DAG size of input: 283 DAG size of output: 277 [2020-10-15 16:45:14,562 WARN L193 SmtUtils]: Spent 140.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 53 [2020-10-15 16:45:14,992 WARN L193 SmtUtils]: Spent 187.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 62 [2020-10-15 16:45:15,415 WARN L193 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 52 [2020-10-15 16:45:15,866 WARN L193 SmtUtils]: Spent 315.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 80 [2020-10-15 16:45:16,316 WARN L193 SmtUtils]: Spent 188.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 63 [2020-10-15 16:45:16,755 WARN L193 SmtUtils]: Spent 143.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 45 [2020-10-15 16:45:17,105 WARN L193 SmtUtils]: Spent 252.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 65 [2020-10-15 16:45:17,447 WARN L193 SmtUtils]: Spent 243.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 63 [2020-10-15 16:45:17,860 WARN L193 SmtUtils]: Spent 301.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 83 [2020-10-15 16:45:18,313 WARN L193 SmtUtils]: Spent 232.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 58 [2020-10-15 16:45:18,678 WARN L193 SmtUtils]: Spent 275.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 68 [2020-10-15 16:45:18,971 WARN L193 SmtUtils]: Spent 123.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 53 [2020-10-15 16:45:19,336 WARN L193 SmtUtils]: Spent 253.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 61 [2020-10-15 16:45:19,778 WARN L193 SmtUtils]: Spent 292.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 66 [2020-10-15 16:45:20,055 WARN L193 SmtUtils]: Spent 186.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 64 [2020-10-15 16:45:22,824 WARN L193 SmtUtils]: Spent 1.87 s on a formula simplification. DAG size of input: 271 DAG size of output: 269 [2020-10-15 16:45:23,212 WARN L193 SmtUtils]: Spent 130.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 51 [2020-10-15 16:45:23,913 WARN L193 SmtUtils]: Spent 199.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 62 [2020-10-15 16:45:24,144 WARN L193 SmtUtils]: Spent 143.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 53 [2020-10-15 16:45:24,366 WARN L193 SmtUtils]: Spent 140.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 55 [2020-10-15 16:45:24,858 WARN L193 SmtUtils]: Spent 290.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 71 [2020-10-15 16:45:25,151 WARN L193 SmtUtils]: Spent 195.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 64 [2020-10-15 16:45:25,440 WARN L193 SmtUtils]: Spent 186.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 64 [2020-10-15 16:45:26,132 WARN L193 SmtUtils]: Spent 521.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 89 [2020-10-15 16:45:26,695 WARN L193 SmtUtils]: Spent 336.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 82 [2020-10-15 16:45:27,959 WARN L193 SmtUtils]: Spent 410.00 ms on a formula simplification that was a NOOP. DAG size: 258 [2020-10-15 16:45:28,925 WARN L193 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 43 DAG size of output: 41 [2020-10-15 16:45:29,265 WARN L193 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 46 DAG size of output: 43 [2020-10-15 16:45:29,608 WARN L193 SmtUtils]: Spent 164.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 52 [2020-10-15 16:45:30,119 WARN L193 SmtUtils]: Spent 274.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 70 [2020-10-15 16:45:30,310 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 16:45:30,310 INFO L93 Difference]: Finished difference Result 2296 states and 4900 transitions. [2020-10-15 16:45:30,311 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 76 states. [2020-10-15 16:45:30,311 INFO L78 Accepts]: Start accepts. Automaton has 37 states. Word has length 36 [2020-10-15 16:45:30,312 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 16:45:30,323 INFO L225 Difference]: With dead ends: 2296 [2020-10-15 16:45:30,323 INFO L226 Difference]: Without dead ends: 2144 [2020-10-15 16:45:30,327 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 146 GetRequests, 35 SyntacticMatches, 4 SemanticMatches, 107 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3673 ImplicationChecksByTransitivity, 23.5s TimeCoverageRelationStatistics Valid=1352, Invalid=10420, Unknown=0, NotChecked=0, Total=11772 [2020-10-15 16:45:30,334 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2144 states. [2020-10-15 16:45:30,357 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2144 to 850. [2020-10-15 16:45:30,357 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 850 states. [2020-10-15 16:45:30,359 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 850 states to 850 states and 1934 transitions. [2020-10-15 16:45:30,359 INFO L78 Accepts]: Start accepts. Automaton has 850 states and 1934 transitions. Word has length 36 [2020-10-15 16:45:30,360 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 16:45:30,361 INFO L481 AbstractCegarLoop]: Abstraction has 850 states and 1934 transitions. [2020-10-15 16:45:30,361 INFO L482 AbstractCegarLoop]: Interpolant automaton has 37 states. [2020-10-15 16:45:30,361 INFO L276 IsEmpty]: Start isEmpty. Operand 850 states and 1934 transitions. [2020-10-15 16:45:30,362 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2020-10-15 16:45:30,363 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 16:45:30,363 INFO L422 BasicCegarLoop]: trace histogram [4, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 16:45:30,578 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,8 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-15 16:45:30,579 INFO L429 AbstractCegarLoop]: === Iteration 13 === [t1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION, t1Err0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 16:45:30,579 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 16:45:30,579 INFO L82 PathProgramCache]: Analyzing trace with hash 1392133555, now seen corresponding path program 2 times [2020-10-15 16:45:30,580 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 16:45:30,580 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1223393496] [2020-10-15 16:45:30,580 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 16:45:30,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 16:45:30,703 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 3 proven. 25 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-10-15 16:45:30,704 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1223393496] [2020-10-15 16:45:30,704 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1032128845] [2020-10-15 16:45:30,704 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 9 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 9 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-15 16:45:30,792 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2020-10-15 16:45:30,792 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-10-15 16:45:30,794 INFO L263 TraceCheckSpWp]: Trace formula consists of 291 conjuncts, 10 conjunts are in the unsatisfiable core [2020-10-15 16:45:30,795 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-15 16:45:30,823 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 3 proven. 25 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-10-15 16:45:30,824 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-10-15 16:45:30,824 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 11 [2020-10-15 16:45:30,824 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1450465597] [2020-10-15 16:45:30,825 INFO L461 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-10-15 16:45:30,825 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 16:45:30,825 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-10-15 16:45:30,825 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=95, Unknown=0, NotChecked=0, Total=132 [2020-10-15 16:45:30,825 INFO L87 Difference]: Start difference. First operand 850 states and 1934 transitions. Second operand 12 states. [2020-10-15 16:45:31,021 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 16:45:31,021 INFO L93 Difference]: Finished difference Result 1531 states and 3311 transitions. [2020-10-15 16:45:31,021 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-10-15 16:45:31,022 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 38 [2020-10-15 16:45:31,022 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 16:45:31,029 INFO L225 Difference]: With dead ends: 1531 [2020-10-15 16:45:31,029 INFO L226 Difference]: Without dead ends: 1531 [2020-10-15 16:45:31,029 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 37 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 51 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=93, Invalid=249, Unknown=0, NotChecked=0, Total=342 [2020-10-15 16:45:31,032 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1531 states. [2020-10-15 16:45:31,052 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1531 to 850. [2020-10-15 16:45:31,053 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 850 states. [2020-10-15 16:45:31,055 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 850 states to 850 states and 1934 transitions. [2020-10-15 16:45:31,055 INFO L78 Accepts]: Start accepts. Automaton has 850 states and 1934 transitions. Word has length 38 [2020-10-15 16:45:31,056 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 16:45:31,056 INFO L481 AbstractCegarLoop]: Abstraction has 850 states and 1934 transitions. [2020-10-15 16:45:31,056 INFO L482 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-10-15 16:45:31,056 INFO L276 IsEmpty]: Start isEmpty. Operand 850 states and 1934 transitions. [2020-10-15 16:45:31,058 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2020-10-15 16:45:31,058 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 16:45:31,058 INFO L422 BasicCegarLoop]: trace histogram [6, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1] [2020-10-15 16:45:31,271 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2020-10-15 16:45:31,272 INFO L429 AbstractCegarLoop]: === Iteration 14 === [t1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION, t1Err0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 16:45:31,272 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 16:45:31,272 INFO L82 PathProgramCache]: Analyzing trace with hash 1525277201, now seen corresponding path program 5 times [2020-10-15 16:45:31,272 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 16:45:31,272 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1144038464] [2020-10-15 16:45:31,273 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 16:45:31,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 16:45:31,358 INFO L134 CoverageAnalysis]: Checked inductivity of 85 backedges. 56 proven. 29 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 16:45:31,359 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1144038464] [2020-10-15 16:45:31,359 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1071203422] [2020-10-15 16:45:31,359 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 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 [2020-10-15 16:45:31,510 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 6 check-sat command(s) [2020-10-15 16:45:31,511 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-10-15 16:45:31,513 INFO L263 TraceCheckSpWp]: Trace formula consists of 333 conjuncts, 7 conjunts are in the unsatisfiable core [2020-10-15 16:45:31,515 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-15 16:45:31,538 INFO L134 CoverageAnalysis]: Checked inductivity of 85 backedges. 85 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 16:45:31,538 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-10-15 16:45:31,538 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [8] total 9 [2020-10-15 16:45:31,538 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1021058802] [2020-10-15 16:45:31,539 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-15 16:45:31,539 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 16:45:31,539 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-15 16:45:31,540 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2020-10-15 16:45:31,540 INFO L87 Difference]: Start difference. First operand 850 states and 1934 transitions. Second operand 8 states. [2020-10-15 16:45:31,590 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 16:45:31,590 INFO L93 Difference]: Finished difference Result 1901 states and 4130 transitions. [2020-10-15 16:45:31,591 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-10-15 16:45:31,591 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 41 [2020-10-15 16:45:31,591 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 16:45:31,596 INFO L225 Difference]: With dead ends: 1901 [2020-10-15 16:45:31,596 INFO L226 Difference]: Without dead ends: 1151 [2020-10-15 16:45:31,597 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 41 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2020-10-15 16:45:31,598 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1151 states. [2020-10-15 16:45:31,616 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1151 to 919. [2020-10-15 16:45:31,617 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 919 states. [2020-10-15 16:45:31,619 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 919 states to 919 states and 1913 transitions. [2020-10-15 16:45:31,619 INFO L78 Accepts]: Start accepts. Automaton has 919 states and 1913 transitions. Word has length 41 [2020-10-15 16:45:31,619 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 16:45:31,620 INFO L481 AbstractCegarLoop]: Abstraction has 919 states and 1913 transitions. [2020-10-15 16:45:31,620 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-15 16:45:31,620 INFO L276 IsEmpty]: Start isEmpty. Operand 919 states and 1913 transitions. [2020-10-15 16:45:31,622 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2020-10-15 16:45:31,622 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 16:45:31,622 INFO L422 BasicCegarLoop]: trace histogram [5, 4, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 16:45:31,837 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13,10 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-15 16:45:31,837 INFO L429 AbstractCegarLoop]: === Iteration 15 === [t1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION, t1Err0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 16:45:31,838 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 16:45:31,838 INFO L82 PathProgramCache]: Analyzing trace with hash -1282653762, now seen corresponding path program 3 times [2020-10-15 16:45:31,838 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 16:45:31,838 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1340128859] [2020-10-15 16:45:31,838 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 16:45:31,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 16:45:31,963 INFO L134 CoverageAnalysis]: Checked inductivity of 54 backedges. 4 proven. 49 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-10-15 16:45:31,963 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1340128859] [2020-10-15 16:45:31,964 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [685990244] [2020-10-15 16:45:31,964 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 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 [2020-10-15 16:45:32,089 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 5 check-sat command(s) [2020-10-15 16:45:32,089 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-10-15 16:45:32,091 INFO L263 TraceCheckSpWp]: Trace formula consists of 336 conjuncts, 12 conjunts are in the unsatisfiable core [2020-10-15 16:45:32,092 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-15 16:45:32,098 INFO L134 CoverageAnalysis]: Checked inductivity of 54 backedges. 4 proven. 43 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2020-10-15 16:45:32,098 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-10-15 16:45:32,098 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 9] total 11 [2020-10-15 16:45:32,099 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1888851461] [2020-10-15 16:45:32,099 INFO L461 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-10-15 16:45:32,099 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 16:45:32,099 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-10-15 16:45:32,100 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=95, Unknown=0, NotChecked=0, Total=132 [2020-10-15 16:45:32,100 INFO L87 Difference]: Start difference. First operand 919 states and 1913 transitions. Second operand 12 states. [2020-10-15 16:45:32,283 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 16:45:32,284 INFO L93 Difference]: Finished difference Result 1454 states and 2944 transitions. [2020-10-15 16:45:32,285 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-10-15 16:45:32,285 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 45 [2020-10-15 16:45:32,285 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 16:45:32,289 INFO L225 Difference]: With dead ends: 1454 [2020-10-15 16:45:32,289 INFO L226 Difference]: Without dead ends: 1127 [2020-10-15 16:45:32,290 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 46 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 30 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=81, Invalid=191, Unknown=0, NotChecked=0, Total=272 [2020-10-15 16:45:32,292 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1127 states. [2020-10-15 16:45:32,307 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1127 to 882. [2020-10-15 16:45:32,307 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 882 states. [2020-10-15 16:45:32,309 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 882 states to 882 states and 1819 transitions. [2020-10-15 16:45:32,310 INFO L78 Accepts]: Start accepts. Automaton has 882 states and 1819 transitions. Word has length 45 [2020-10-15 16:45:32,310 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 16:45:32,310 INFO L481 AbstractCegarLoop]: Abstraction has 882 states and 1819 transitions. [2020-10-15 16:45:32,310 INFO L482 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-10-15 16:45:32,310 INFO L276 IsEmpty]: Start isEmpty. Operand 882 states and 1819 transitions. [2020-10-15 16:45:32,312 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2020-10-15 16:45:32,312 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 16:45:32,312 INFO L422 BasicCegarLoop]: trace histogram [5, 4, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 16:45:32,525 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2020-10-15 16:45:32,525 INFO L429 AbstractCegarLoop]: === Iteration 16 === [t1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION, t1Err0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 16:45:32,526 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 16:45:32,526 INFO L82 PathProgramCache]: Analyzing trace with hash 2015805632, now seen corresponding path program 4 times [2020-10-15 16:45:32,526 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 16:45:32,526 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [648080559] [2020-10-15 16:45:32,526 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 16:45:32,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 16:45:32,628 INFO L134 CoverageAnalysis]: Checked inductivity of 54 backedges. 4 proven. 43 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2020-10-15 16:45:32,628 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [648080559] [2020-10-15 16:45:32,629 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [32030270] [2020-10-15 16:45:32,629 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 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 [2020-10-15 16:45:32,718 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2020-10-15 16:45:32,718 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-10-15 16:45:32,719 INFO L263 TraceCheckSpWp]: Trace formula consists of 336 conjuncts, 12 conjunts are in the unsatisfiable core [2020-10-15 16:45:32,720 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-15 16:45:32,746 INFO L134 CoverageAnalysis]: Checked inductivity of 54 backedges. 4 proven. 43 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2020-10-15 16:45:32,746 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-10-15 16:45:32,746 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 11 [2020-10-15 16:45:32,746 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1296915592] [2020-10-15 16:45:32,747 INFO L461 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-10-15 16:45:32,747 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 16:45:32,747 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-10-15 16:45:32,747 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=95, Unknown=0, NotChecked=0, Total=132 [2020-10-15 16:45:32,748 INFO L87 Difference]: Start difference. First operand 882 states and 1819 transitions. Second operand 12 states. [2020-10-15 16:45:32,929 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 16:45:32,929 INFO L93 Difference]: Finished difference Result 1257 states and 2501 transitions. [2020-10-15 16:45:32,930 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-10-15 16:45:32,930 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 45 [2020-10-15 16:45:32,930 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 16:45:32,934 INFO L225 Difference]: With dead ends: 1257 [2020-10-15 16:45:32,934 INFO L226 Difference]: Without dead ends: 1177 [2020-10-15 16:45:32,935 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 46 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 41 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=87, Invalid=219, Unknown=0, NotChecked=0, Total=306 [2020-10-15 16:45:32,937 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1177 states. [2020-10-15 16:45:32,950 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1177 to 778. [2020-10-15 16:45:32,950 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 778 states. [2020-10-15 16:45:32,952 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 778 states to 778 states and 1596 transitions. [2020-10-15 16:45:32,952 INFO L78 Accepts]: Start accepts. Automaton has 778 states and 1596 transitions. Word has length 45 [2020-10-15 16:45:32,953 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 16:45:32,953 INFO L481 AbstractCegarLoop]: Abstraction has 778 states and 1596 transitions. [2020-10-15 16:45:32,953 INFO L482 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-10-15 16:45:32,953 INFO L276 IsEmpty]: Start isEmpty. Operand 778 states and 1596 transitions. [2020-10-15 16:45:32,955 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2020-10-15 16:45:32,955 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 16:45:32,955 INFO L422 BasicCegarLoop]: trace histogram [5, 4, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 16:45:33,169 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2020-10-15 16:45:33,170 INFO L429 AbstractCegarLoop]: === Iteration 17 === [t1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION, t1Err0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 16:45:33,170 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 16:45:33,171 INFO L82 PathProgramCache]: Analyzing trace with hash -1958720896, now seen corresponding path program 5 times [2020-10-15 16:45:33,171 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 16:45:33,171 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [712333883] [2020-10-15 16:45:33,171 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 16:45:33,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 16:45:33,283 INFO L134 CoverageAnalysis]: Checked inductivity of 54 backedges. 4 proven. 48 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-10-15 16:45:33,284 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [712333883] [2020-10-15 16:45:33,284 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2043094663] [2020-10-15 16:45:33,284 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 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 [2020-10-15 16:45:33,432 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 5 check-sat command(s) [2020-10-15 16:45:33,433 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-10-15 16:45:33,435 INFO L263 TraceCheckSpWp]: Trace formula consists of 336 conjuncts, 12 conjunts are in the unsatisfiable core [2020-10-15 16:45:33,437 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-15 16:45:33,473 INFO L134 CoverageAnalysis]: Checked inductivity of 54 backedges. 4 proven. 48 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-10-15 16:45:33,473 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-10-15 16:45:33,473 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11] total 13 [2020-10-15 16:45:33,474 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [523363053] [2020-10-15 16:45:33,474 INFO L461 AbstractCegarLoop]: Interpolant automaton has 14 states [2020-10-15 16:45:33,474 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 16:45:33,474 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2020-10-15 16:45:33,475 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=50, Invalid=132, Unknown=0, NotChecked=0, Total=182 [2020-10-15 16:45:33,475 INFO L87 Difference]: Start difference. First operand 778 states and 1596 transitions. Second operand 14 states. [2020-10-15 16:45:33,724 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 16:45:33,724 INFO L93 Difference]: Finished difference Result 1374 states and 2723 transitions. [2020-10-15 16:45:33,725 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2020-10-15 16:45:33,725 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 45 [2020-10-15 16:45:33,726 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 16:45:33,732 INFO L225 Difference]: With dead ends: 1374 [2020-10-15 16:45:33,732 INFO L226 Difference]: Without dead ends: 1364 [2020-10-15 16:45:33,733 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 65 GetRequests, 44 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 84 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=133, Invalid=373, Unknown=0, NotChecked=0, Total=506 [2020-10-15 16:45:33,735 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1364 states. [2020-10-15 16:45:33,748 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1364 to 778. [2020-10-15 16:45:33,748 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 778 states. [2020-10-15 16:45:33,750 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 778 states to 778 states and 1596 transitions. [2020-10-15 16:45:33,751 INFO L78 Accepts]: Start accepts. Automaton has 778 states and 1596 transitions. Word has length 45 [2020-10-15 16:45:33,751 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 16:45:33,751 INFO L481 AbstractCegarLoop]: Abstraction has 778 states and 1596 transitions. [2020-10-15 16:45:33,751 INFO L482 AbstractCegarLoop]: Interpolant automaton has 14 states. [2020-10-15 16:45:33,751 INFO L276 IsEmpty]: Start isEmpty. Operand 778 states and 1596 transitions. [2020-10-15 16:45:33,753 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2020-10-15 16:45:33,753 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 16:45:33,753 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 16:45:33,967 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2020-10-15 16:45:33,967 INFO L429 AbstractCegarLoop]: === Iteration 18 === [t1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION, t1Err0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 16:45:33,968 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 16:45:33,968 INFO L82 PathProgramCache]: Analyzing trace with hash 579552405, now seen corresponding path program 2 times [2020-10-15 16:45:33,968 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 16:45:33,968 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2083017900] [2020-10-15 16:45:33,969 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 16:45:34,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 16:45:35,193 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 0 proven. 45 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 16:45:35,194 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2083017900] [2020-10-15 16:45:35,194 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2050360297] [2020-10-15 16:45:35,194 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 [2020-10-15 16:45:35,299 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2020-10-15 16:45:35,299 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-10-15 16:45:35,301 INFO L263 TraceCheckSpWp]: Trace formula consists of 326 conjuncts, 77 conjunts are in the unsatisfiable core [2020-10-15 16:45:35,303 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-15 16:45:35,522 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 19 treesize of output 15 [2020-10-15 16:45:35,522 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-10-15 16:45:35,554 INFO L625 ElimStorePlain]: treesize reduction 3, result has 92.3 percent of original size [2020-10-15 16:45:35,559 INFO L545 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-10-15 16:45:35,560 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:43, output treesize:50 [2020-10-15 16:45:36,114 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-10-15 16:45:36,115 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 69 treesize of output 41 [2020-10-15 16:45:36,116 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-10-15 16:45:36,151 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-15 16:45:36,152 INFO L545 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-10-15 16:45:36,153 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 4 variables, input treesize:75, output treesize:54 [2020-10-15 16:45:36,632 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-10-15 16:45:36,634 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 69 treesize of output 41 [2020-10-15 16:45:36,634 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-10-15 16:45:36,658 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-15 16:45:36,659 INFO L545 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-10-15 16:45:36,659 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 4 variables, input treesize:75, output treesize:54 [2020-10-15 16:45:37,472 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-10-15 16:45:37,491 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 79 treesize of output 31 [2020-10-15 16:45:37,512 INFO L545 ElimStorePlain]: Start of recursive call 2: 4 dim-0 vars, End of recursive call: 4 dim-0 vars, and 1 xjuncts. [2020-10-15 16:45:37,523 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 76 treesize of output 28 [2020-10-15 16:45:37,533 INFO L545 ElimStorePlain]: Start of recursive call 3: 2 dim-0 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2020-10-15 16:45:37,611 INFO L625 ElimStorePlain]: treesize reduction 120, result has 35.1 percent of original size [2020-10-15 16:45:37,614 INFO L545 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2020-10-15 16:45:37,615 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:156, output treesize:65 [2020-10-15 16:45:37,788 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 2 proven. 43 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 16:45:37,788 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-10-15 16:45:37,788 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [24, 24] total 48 [2020-10-15 16:45:37,788 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [95769897] [2020-10-15 16:45:37,789 INFO L461 AbstractCegarLoop]: Interpolant automaton has 49 states [2020-10-15 16:45:37,789 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 16:45:37,789 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 49 interpolants. [2020-10-15 16:45:37,790 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=142, Invalid=2210, Unknown=0, NotChecked=0, Total=2352 [2020-10-15 16:45:37,790 INFO L87 Difference]: Start difference. First operand 778 states and 1596 transitions. Second operand 49 states. [2020-10-15 16:45:38,742 WARN L193 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 42 DAG size of output: 36 [2020-10-15 16:45:39,294 WARN L193 SmtUtils]: Spent 136.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 38 [2020-10-15 16:45:39,645 WARN L193 SmtUtils]: Spent 207.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 51 [2020-10-15 16:45:40,101 WARN L193 SmtUtils]: Spent 245.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 54 [2020-10-15 16:45:40,362 WARN L193 SmtUtils]: Spent 128.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 43 [2020-10-15 16:45:40,869 WARN L193 SmtUtils]: Spent 168.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 49 [2020-10-15 16:45:41,116 WARN L193 SmtUtils]: Spent 148.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 46 [2020-10-15 16:45:41,692 WARN L193 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 42 DAG size of output: 40 [2020-10-15 16:45:41,938 WARN L193 SmtUtils]: Spent 141.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 48 [2020-10-15 16:45:42,296 WARN L193 SmtUtils]: Spent 144.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 63 [2020-10-15 16:45:42,663 WARN L193 SmtUtils]: Spent 203.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 51 [2020-10-15 16:45:43,179 WARN L193 SmtUtils]: Spent 286.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 60 [2020-10-15 16:45:44,027 WARN L193 SmtUtils]: Spent 444.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 65 [2020-10-15 16:45:44,471 WARN L193 SmtUtils]: Spent 210.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 61 [2020-10-15 16:45:45,015 WARN L193 SmtUtils]: Spent 233.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 58 [2020-10-15 16:45:45,643 WARN L193 SmtUtils]: Spent 317.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 66 [2020-10-15 16:45:46,273 WARN L193 SmtUtils]: Spent 237.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 61 [2020-10-15 16:45:46,605 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 49 [2020-10-15 16:45:47,278 WARN L193 SmtUtils]: Spent 324.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 72 [2020-10-15 16:45:47,966 WARN L193 SmtUtils]: Spent 328.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 87 [2020-10-15 16:45:48,382 WARN L193 SmtUtils]: Spent 255.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 60 [2020-10-15 16:45:49,025 WARN L193 SmtUtils]: Spent 372.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 69 [2020-10-15 16:45:49,564 WARN L193 SmtUtils]: Spent 179.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 52 [2020-10-15 16:45:50,670 WARN L193 SmtUtils]: Spent 811.00 ms on a formula simplification. DAG size of input: 98 DAG size of output: 96 [2020-10-15 16:45:51,348 WARN L193 SmtUtils]: Spent 329.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 70 [2020-10-15 16:45:51,988 WARN L193 SmtUtils]: Spent 239.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 61 [2020-10-15 16:45:52,325 WARN L193 SmtUtils]: Spent 176.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 45 [2020-10-15 16:45:52,789 WARN L193 SmtUtils]: Spent 320.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 65 [2020-10-15 16:45:53,308 WARN L193 SmtUtils]: Spent 344.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 63 [2020-10-15 16:45:54,069 WARN L193 SmtUtils]: Spent 567.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 78 [2020-10-15 16:45:54,655 WARN L193 SmtUtils]: Spent 278.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 58 [2020-10-15 16:45:55,156 WARN L193 SmtUtils]: Spent 356.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 68 [2020-10-15 16:45:55,924 WARN L193 SmtUtils]: Spent 378.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 70 [2020-10-15 16:45:56,305 WARN L193 SmtUtils]: Spent 160.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 52 [2020-10-15 16:45:56,826 WARN L193 SmtUtils]: Spent 349.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 61 [2020-10-15 16:45:57,469 WARN L193 SmtUtils]: Spent 397.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 66 [2020-10-15 16:45:58,233 WARN L193 SmtUtils]: Spent 499.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 81 [2020-10-15 16:45:59,294 WARN L193 SmtUtils]: Spent 529.00 ms on a formula simplification. DAG size of input: 104 DAG size of output: 96 [2020-10-15 16:45:59,768 WARN L193 SmtUtils]: Spent 275.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 63 [2020-10-15 16:46:00,422 WARN L193 SmtUtils]: Spent 351.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 72 [2020-10-15 16:46:00,873 WARN L193 SmtUtils]: Spent 200.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 52 [2020-10-15 16:46:01,334 WARN L193 SmtUtils]: Spent 246.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 61 [2020-10-15 16:46:02,289 WARN L193 SmtUtils]: Spent 696.00 ms on a formula simplification. DAG size of input: 101 DAG size of output: 99 [2020-10-15 16:46:03,097 WARN L193 SmtUtils]: Spent 358.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 73 [2020-10-15 16:46:03,818 WARN L193 SmtUtils]: Spent 342.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 63 [2020-10-15 16:46:04,519 WARN L193 SmtUtils]: Spent 474.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 79 [2020-10-15 16:46:05,261 WARN L193 SmtUtils]: Spent 527.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 72 [2020-10-15 16:46:06,185 WARN L193 SmtUtils]: Spent 627.00 ms on a formula simplification. DAG size of input: 104 DAG size of output: 102 [2020-10-15 16:46:07,030 WARN L193 SmtUtils]: Spent 501.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 72 [2020-10-15 16:46:07,926 WARN L193 SmtUtils]: Spent 646.00 ms on a formula simplification. DAG size of input: 103 DAG size of output: 84 [2020-10-15 16:46:08,633 WARN L193 SmtUtils]: Spent 301.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 63 [2020-10-15 16:46:09,628 WARN L193 SmtUtils]: Spent 679.00 ms on a formula simplification. DAG size of input: 103 DAG size of output: 77 [2020-10-15 16:46:10,847 WARN L193 SmtUtils]: Spent 808.00 ms on a formula simplification. DAG size of input: 103 DAG size of output: 77 [2020-10-15 16:46:11,435 WARN L193 SmtUtils]: Spent 361.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 74 [2020-10-15 16:46:12,382 WARN L193 SmtUtils]: Spent 452.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 89 [2020-10-15 16:46:12,997 WARN L193 SmtUtils]: Spent 281.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 61 [2020-10-15 16:46:13,402 WARN L193 SmtUtils]: Spent 228.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 54 [2020-10-15 16:46:14,366 WARN L193 SmtUtils]: Spent 464.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 72 [2020-10-15 16:46:14,913 WARN L193 SmtUtils]: Spent 310.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 63 [2020-10-15 16:46:15,411 WARN L193 SmtUtils]: Spent 327.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 65 [2020-10-15 16:46:16,457 WARN L193 SmtUtils]: Spent 664.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 81 [2020-10-15 16:46:17,192 WARN L193 SmtUtils]: Spent 491.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 83 [2020-10-15 16:46:17,891 WARN L193 SmtUtils]: Spent 450.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 74 [2020-10-15 16:46:19,731 WARN L193 SmtUtils]: Spent 1.39 s on a formula simplification. DAG size of input: 110 DAG size of output: 108 [2020-10-15 16:46:20,190 WARN L193 SmtUtils]: Spent 257.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 53 [2020-10-15 16:46:21,359 WARN L193 SmtUtils]: Spent 809.00 ms on a formula simplification. DAG size of input: 103 DAG size of output: 101 [2020-10-15 16:46:22,066 WARN L193 SmtUtils]: Spent 368.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 64 [2020-10-15 16:46:22,774 WARN L193 SmtUtils]: Spent 353.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 79 [2020-10-15 16:46:23,110 WARN L193 SmtUtils]: Spent 126.00 ms on a formula simplification. DAG size of input: 45 DAG size of output: 44 [2020-10-15 16:46:23,679 WARN L193 SmtUtils]: Spent 269.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 53 [2020-10-15 16:46:24,117 WARN L193 SmtUtils]: Spent 267.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 55 [2020-10-15 16:46:24,819 WARN L193 SmtUtils]: Spent 381.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 64 [2020-10-15 16:46:25,376 WARN L193 SmtUtils]: Spent 352.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 64 [2020-10-15 16:46:26,590 WARN L193 SmtUtils]: Spent 641.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 82 [2020-10-15 16:46:26,928 WARN L193 SmtUtils]: Spent 126.00 ms on a formula simplification that was a NOOP. DAG size: 53 [2020-10-15 16:46:27,444 WARN L193 SmtUtils]: Spent 247.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 51 [2020-10-15 16:46:27,800 WARN L193 SmtUtils]: Spent 194.00 ms on a formula simplification that was a NOOP. DAG size: 68 [2020-10-15 16:46:28,494 WARN L193 SmtUtils]: Spent 105.00 ms on a formula simplification that was a NOOP. DAG size: 44 [2020-10-15 16:46:28,841 WARN L193 SmtUtils]: Spent 131.00 ms on a formula simplification that was a NOOP. DAG size: 54 [2020-10-15 16:46:29,292 WARN L193 SmtUtils]: Spent 186.00 ms on a formula simplification that was a NOOP. DAG size: 63 [2020-10-15 16:46:29,668 WARN L193 SmtUtils]: Spent 169.00 ms on a formula simplification. DAG size of input: 43 DAG size of output: 41 [2020-10-15 16:46:30,451 WARN L193 SmtUtils]: Spent 143.00 ms on a formula simplification that was a NOOP. DAG size: 51 [2020-10-15 16:46:30,481 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 16:46:30,481 INFO L93 Difference]: Finished difference Result 1670 states and 3308 transitions. [2020-10-15 16:46:30,483 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 101 states. [2020-10-15 16:46:30,484 INFO L78 Accepts]: Start accepts. Automaton has 49 states. Word has length 51 [2020-10-15 16:46:30,484 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 16:46:30,488 INFO L225 Difference]: With dead ends: 1670 [2020-10-15 16:46:30,488 INFO L226 Difference]: Without dead ends: 874 [2020-10-15 16:46:30,493 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 199 GetRequests, 53 SyntacticMatches, 2 SemanticMatches, 144 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6719 ImplicationChecksByTransitivity, 46.9s TimeCoverageRelationStatistics Valid=2070, Invalid=19100, Unknown=0, NotChecked=0, Total=21170 [2020-10-15 16:46:30,494 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 874 states. [2020-10-15 16:46:30,502 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 874 to 644. [2020-10-15 16:46:30,502 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 644 states. [2020-10-15 16:46:30,504 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 644 states to 644 states and 1286 transitions. [2020-10-15 16:46:30,504 INFO L78 Accepts]: Start accepts. Automaton has 644 states and 1286 transitions. Word has length 51 [2020-10-15 16:46:30,504 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 16:46:30,504 INFO L481 AbstractCegarLoop]: Abstraction has 644 states and 1286 transitions. [2020-10-15 16:46:30,504 INFO L482 AbstractCegarLoop]: Interpolant automaton has 49 states. [2020-10-15 16:46:30,505 INFO L276 IsEmpty]: Start isEmpty. Operand 644 states and 1286 transitions. [2020-10-15 16:46:30,506 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2020-10-15 16:46:30,506 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 16:46:30,507 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 16:46:30,720 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2020-10-15 16:46:30,721 INFO L429 AbstractCegarLoop]: === Iteration 19 === [t1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION, t1Err0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 16:46:30,721 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 16:46:30,722 INFO L82 PathProgramCache]: Analyzing trace with hash 1304222551, now seen corresponding path program 3 times [2020-10-15 16:46:30,722 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 16:46:30,722 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1264018839] [2020-10-15 16:46:30,723 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 16:46:30,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 16:46:33,420 INFO L134 CoverageAnalysis]: Checked inductivity of 90 backedges. 0 proven. 90 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 16:46:33,420 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1264018839] [2020-10-15 16:46:33,420 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1678069762] [2020-10-15 16:46:33,420 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 [2020-10-15 16:46:33,783 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 4 check-sat command(s) [2020-10-15 16:46:33,783 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-10-15 16:46:33,787 INFO L263 TraceCheckSpWp]: Trace formula consists of 406 conjuncts, 94 conjunts are in the unsatisfiable core [2020-10-15 16:46:33,790 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-15 16:46:34,213 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 19 treesize of output 15 [2020-10-15 16:46:34,214 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-10-15 16:46:34,253 INFO L625 ElimStorePlain]: treesize reduction 3, result has 92.3 percent of original size [2020-10-15 16:46:34,254 INFO L545 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-10-15 16:46:34,254 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:43, output treesize:50 [2020-10-15 16:46:35,253 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-10-15 16:46:35,254 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 69 treesize of output 41 [2020-10-15 16:46:35,255 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-10-15 16:46:35,298 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-15 16:46:35,300 INFO L545 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-10-15 16:46:35,301 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 4 variables, input treesize:75, output treesize:54 [2020-10-15 16:46:36,300 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-10-15 16:46:36,301 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 69 treesize of output 41 [2020-10-15 16:46:36,302 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-10-15 16:46:36,344 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-15 16:46:36,346 INFO L545 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-10-15 16:46:36,347 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 4 variables, input treesize:75, output treesize:54 [2020-10-15 16:46:37,307 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-10-15 16:46:37,308 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 69 treesize of output 41 [2020-10-15 16:46:37,309 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-10-15 16:46:37,359 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-15 16:46:37,361 INFO L545 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-10-15 16:46:37,361 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 4 variables, input treesize:75, output treesize:54 [2020-10-15 16:46:39,266 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-10-15 16:46:39,281 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 79 treesize of output 31 [2020-10-15 16:46:39,292 INFO L545 ElimStorePlain]: Start of recursive call 2: 2 dim-0 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2020-10-15 16:46:39,302 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 76 treesize of output 28 [2020-10-15 16:46:39,321 INFO L545 ElimStorePlain]: Start of recursive call 3: 3 dim-0 vars, End of recursive call: 3 dim-0 vars, and 1 xjuncts. [2020-10-15 16:46:39,496 WARN L193 SmtUtils]: Spent 174.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 30 [2020-10-15 16:46:39,497 INFO L625 ElimStorePlain]: treesize reduction 100, result has 42.9 percent of original size [2020-10-15 16:46:39,513 INFO L545 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-2 vars, End of recursive call: 3 dim-0 vars, and 1 xjuncts. [2020-10-15 16:46:39,514 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:156, output treesize:75 [2020-10-15 16:46:39,868 INFO L134 CoverageAnalysis]: Checked inductivity of 90 backedges. 3 proven. 87 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 16:46:39,869 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-10-15 16:46:39,869 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [30, 30] total 60 [2020-10-15 16:46:39,869 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1233223225] [2020-10-15 16:46:39,869 INFO L461 AbstractCegarLoop]: Interpolant automaton has 61 states [2020-10-15 16:46:39,869 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 16:46:39,870 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 61 interpolants. [2020-10-15 16:46:39,871 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=181, Invalid=3479, Unknown=0, NotChecked=0, Total=3660 [2020-10-15 16:46:39,871 INFO L87 Difference]: Start difference. First operand 644 states and 1286 transitions. Second operand 61 states. [2020-10-15 16:46:41,629 WARN L193 SmtUtils]: Spent 189.00 ms on a formula simplification. DAG size of input: 42 DAG size of output: 36 [2020-10-15 16:46:42,125 WARN L193 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 28 DAG size of output: 27 [2020-10-15 16:46:42,703 WARN L193 SmtUtils]: Spent 227.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 38 [2020-10-15 16:46:43,448 WARN L193 SmtUtils]: Spent 387.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 51 [2020-10-15 16:46:44,434 WARN L193 SmtUtils]: Spent 494.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 54 [2020-10-15 16:46:44,886 WARN L193 SmtUtils]: Spent 254.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 43 [2020-10-15 16:46:45,741 WARN L193 SmtUtils]: Spent 335.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 49 [2020-10-15 16:46:46,192 WARN L193 SmtUtils]: Spent 255.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 46 [2020-10-15 16:46:46,732 WARN L193 SmtUtils]: Spent 124.00 ms on a formula simplification. DAG size of input: 36 DAG size of output: 34 [2020-10-15 16:46:47,315 WARN L193 SmtUtils]: Spent 203.00 ms on a formula simplification. DAG size of input: 42 DAG size of output: 40 [2020-10-15 16:46:47,805 WARN L193 SmtUtils]: Spent 269.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 48 [2020-10-15 16:46:48,609 WARN L193 SmtUtils]: Spent 269.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 63 [2020-10-15 16:46:49,304 WARN L193 SmtUtils]: Spent 396.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 51 [2020-10-15 16:46:50,521 WARN L193 SmtUtils]: Spent 645.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 60 [2020-10-15 16:46:52,251 WARN L193 SmtUtils]: Spent 908.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 65 [2020-10-15 16:46:53,167 WARN L193 SmtUtils]: Spent 346.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 61 [2020-10-15 16:46:54,501 WARN L193 SmtUtils]: Spent 524.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 59 [2020-10-15 16:46:54,781 WARN L193 SmtUtils]: Spent 142.00 ms on a formula simplification. DAG size of input: 38 DAG size of output: 36 [2020-10-15 16:46:55,692 WARN L193 SmtUtils]: Spent 507.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 66 [2020-10-15 16:46:57,181 WARN L193 SmtUtils]: Spent 505.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 61 [2020-10-15 16:46:57,898 WARN L193 SmtUtils]: Spent 248.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 50 [2020-10-15 16:46:58,155 WARN L193 SmtUtils]: Spent 140.00 ms on a formula simplification. DAG size of input: 38 DAG size of output: 36 [2020-10-15 16:46:59,248 WARN L193 SmtUtils]: Spent 659.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 72 [2020-10-15 16:47:00,916 WARN L193 SmtUtils]: Spent 778.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 87 [2020-10-15 16:47:02,009 WARN L193 SmtUtils]: Spent 644.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 64 [2020-10-15 16:47:03,546 WARN L193 SmtUtils]: Spent 794.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 73 [2020-10-15 16:47:04,139 WARN L193 SmtUtils]: Spent 167.00 ms on a formula simplification. DAG size of input: 36 DAG size of output: 34 [2020-10-15 16:47:04,811 WARN L193 SmtUtils]: Spent 351.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 52 [2020-10-15 16:47:07,199 WARN L193 SmtUtils]: Spent 1.68 s on a formula simplification. DAG size of input: 110 DAG size of output: 77 [2020-10-15 16:47:08,570 WARN L193 SmtUtils]: Spent 606.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 71 [2020-10-15 16:47:10,373 WARN L193 SmtUtils]: Spent 726.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 67 [2020-10-15 16:47:10,922 WARN L193 SmtUtils]: Spent 257.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 45 [2020-10-15 16:47:12,009 WARN L193 SmtUtils]: Spent 646.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 63 [2020-10-15 16:47:13,853 WARN L193 SmtUtils]: Spent 1.25 s on a formula simplification. DAG size of input: 104 DAG size of output: 78 [2020-10-15 16:47:15,471 WARN L193 SmtUtils]: Spent 662.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 58 [2020-10-15 16:47:17,033 WARN L193 SmtUtils]: Spent 722.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 70 [2020-10-15 16:47:18,245 WARN L193 SmtUtils]: Spent 636.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 58 [2020-10-15 16:47:19,396 WARN L193 SmtUtils]: Spent 719.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 61 [2020-10-15 16:47:20,620 WARN L193 SmtUtils]: Spent 801.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 66 [2020-10-15 16:47:22,420 WARN L193 SmtUtils]: Spent 1.10 s on a formula simplification. DAG size of input: 89 DAG size of output: 81 [2020-10-15 16:47:25,126 WARN L193 SmtUtils]: Spent 1.28 s on a formula simplification. DAG size of input: 104 DAG size of output: 96 [2020-10-15 16:47:26,332 WARN L193 SmtUtils]: Spent 710.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 69 [2020-10-15 16:47:28,370 WARN L193 SmtUtils]: Spent 1.19 s on a formula simplification. DAG size of input: 81 DAG size of output: 78 [2020-10-15 16:47:29,387 WARN L193 SmtUtils]: Spent 370.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 52 [2020-10-15 16:47:30,291 WARN L193 SmtUtils]: Spent 542.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 61 [2020-10-15 16:47:34,229 WARN L193 SmtUtils]: Spent 2.85 s on a formula simplification. DAG size of input: 116 DAG size of output: 114 [2020-10-15 16:47:36,164 WARN L193 SmtUtils]: Spent 926.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 79 [2020-10-15 16:47:38,567 WARN L193 SmtUtils]: Spent 760.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 71 [2020-10-15 16:47:39,812 WARN L193 SmtUtils]: Spent 676.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 63 [2020-10-15 16:47:41,375 WARN L193 SmtUtils]: Spent 1.07 s on a formula simplification. DAG size of input: 95 DAG size of output: 72 [2020-10-15 16:47:43,714 WARN L193 SmtUtils]: Spent 1.57 s on a formula simplification. DAG size of input: 112 DAG size of output: 89 [2020-10-15 16:47:46,002 WARN L193 SmtUtils]: Spent 1.01 s on a formula simplification. DAG size of input: 95 DAG size of output: 72 [2020-10-15 16:47:48,357 WARN L193 SmtUtils]: Spent 1.18 s on a formula simplification. DAG size of input: 88 DAG size of output: 80 [2020-10-15 16:47:50,803 WARN L193 SmtUtils]: Spent 1.56 s on a formula simplification. DAG size of input: 103 DAG size of output: 77 [2020-10-15 16:47:53,077 WARN L193 SmtUtils]: Spent 1.63 s on a formula simplification. DAG size of input: 103 DAG size of output: 77 [2020-10-15 16:47:55,572 WARN L193 SmtUtils]: Spent 1.66 s on a formula simplification. DAG size of input: 99 DAG size of output: 91 [2020-10-15 16:47:58,851 WARN L193 SmtUtils]: Spent 1.90 s on a formula simplification. DAG size of input: 114 DAG size of output: 106 [2020-10-15 16:48:00,870 WARN L193 SmtUtils]: Spent 730.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 62 [2020-10-15 16:48:02,288 WARN L193 SmtUtils]: Spent 754.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 71 [2020-10-15 16:48:04,739 WARN L193 SmtUtils]: Spent 1.08 s on a formula simplification. DAG size of input: 85 DAG size of output: 83 [2020-10-15 16:48:06,534 WARN L193 SmtUtils]: Spent 1.09 s on a formula simplification. DAG size of input: 96 DAG size of output: 76 [2020-10-15 16:48:08,928 WARN L193 SmtUtils]: Spent 1.57 s on a formula simplification. DAG size of input: 97 DAG size of output: 89 [2020-10-15 16:48:11,289 WARN L193 SmtUtils]: Spent 1.60 s on a formula simplification. DAG size of input: 105 DAG size of output: 85 [2020-10-15 16:48:14,628 WARN L193 SmtUtils]: Spent 2.27 s on a formula simplification. DAG size of input: 123 DAG size of output: 121 [2020-10-15 16:48:17,273 WARN L193 SmtUtils]: Spent 1.63 s on a formula simplification. DAG size of input: 105 DAG size of output: 85 [2020-10-15 16:48:20,562 WARN L193 SmtUtils]: Spent 2.36 s on a formula simplification. DAG size of input: 122 DAG size of output: 96 [2020-10-15 16:48:22,742 WARN L193 SmtUtils]: Spent 873.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 73 [2020-10-15 16:48:26,335 WARN L193 SmtUtils]: Spent 2.51 s on a formula simplification. DAG size of input: 122 DAG size of output: 89 [2020-10-15 16:48:30,437 WARN L193 SmtUtils]: Spent 2.64 s on a formula simplification. DAG size of input: 122 DAG size of output: 89 [2020-10-15 16:48:32,481 WARN L193 SmtUtils]: Spent 1.21 s on a formula simplification. DAG size of input: 86 DAG size of output: 84 [2020-10-15 16:48:35,335 WARN L193 SmtUtils]: Spent 1.45 s on a formula simplification. DAG size of input: 101 DAG size of output: 99 [2020-10-15 16:48:38,112 WARN L193 SmtUtils]: Spent 1.06 s on a formula simplification. DAG size of input: 75 DAG size of output: 73 [2020-10-15 16:48:40,364 WARN L193 SmtUtils]: Spent 1.37 s on a formula simplification. DAG size of input: 87 DAG size of output: 79 [2020-10-15 16:48:43,109 WARN L193 SmtUtils]: Spent 1.71 s on a formula simplification. DAG size of input: 104 DAG size of output: 102 [2020-10-15 16:48:45,747 WARN L193 SmtUtils]: Spent 1.72 s on a formula simplification. DAG size of input: 103 DAG size of output: 84 [2020-10-15 16:48:47,294 WARN L193 SmtUtils]: Spent 798.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 63 [2020-10-15 16:48:49,217 WARN L193 SmtUtils]: Spent 941.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 74 [2020-10-15 16:48:51,252 WARN L193 SmtUtils]: Spent 1.18 s on a formula simplification. DAG size of input: 91 DAG size of output: 89 [2020-10-15 16:48:53,520 WARN L193 SmtUtils]: Spent 797.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 63 [2020-10-15 16:48:55,124 WARN L193 SmtUtils]: Spent 939.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 65 [2020-10-15 16:48:57,273 WARN L193 SmtUtils]: Spent 1.29 s on a formula simplification. DAG size of input: 85 DAG size of output: 83 [2020-10-15 16:48:59,016 WARN L193 SmtUtils]: Spent 1.04 s on a formula simplification. DAG size of input: 75 DAG size of output: 68 [2020-10-15 16:49:00,254 WARN L193 SmtUtils]: Spent 619.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 53 [2020-10-15 16:49:01,822 WARN L193 SmtUtils]: Spent 749.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 64 [2020-10-15 16:49:03,434 WARN L193 SmtUtils]: Spent 858.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 79 [2020-10-15 16:49:05,203 WARN L193 SmtUtils]: Spent 598.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 53 [2020-10-15 16:49:06,789 WARN L193 SmtUtils]: Spent 743.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 64 [2020-10-15 16:49:07,530 WARN L193 SmtUtils]: Spent 267.00 ms on a formula simplification that was a NOOP. DAG size: 42 [2020-10-15 16:49:08,305 WARN L193 SmtUtils]: Spent 273.00 ms on a formula simplification that was a NOOP. DAG size: 53 [2020-10-15 16:49:09,172 WARN L193 SmtUtils]: Spent 323.00 ms on a formula simplification that was a NOOP. DAG size: 68 [2020-10-15 16:49:09,808 WARN L193 SmtUtils]: Spent 119.00 ms on a formula simplification that was a NOOP. DAG size: 24 [2020-10-15 16:49:09,918 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 16:49:09,918 INFO L93 Difference]: Finished difference Result 1205 states and 2354 transitions. [2020-10-15 16:49:09,924 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 99 states. [2020-10-15 16:49:09,924 INFO L78 Accepts]: Start accepts. Automaton has 61 states. Word has length 66 [2020-10-15 16:49:09,925 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 16:49:09,927 INFO L225 Difference]: With dead ends: 1205 [2020-10-15 16:49:09,927 INFO L226 Difference]: Without dead ends: 545 [2020-10-15 16:49:09,932 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 222 GetRequests, 66 SyntacticMatches, 1 SemanticMatches, 155 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7256 ImplicationChecksByTransitivity, 131.0s TimeCoverageRelationStatistics Valid=2138, Invalid=22354, Unknown=0, NotChecked=0, Total=24492 [2020-10-15 16:49:09,933 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 545 states. [2020-10-15 16:49:09,947 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 545 to 524. [2020-10-15 16:49:09,947 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 524 states. [2020-10-15 16:49:09,948 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 524 states to 524 states and 1048 transitions. [2020-10-15 16:49:09,949 INFO L78 Accepts]: Start accepts. Automaton has 524 states and 1048 transitions. Word has length 66 [2020-10-15 16:49:09,949 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 16:49:09,949 INFO L481 AbstractCegarLoop]: Abstraction has 524 states and 1048 transitions. [2020-10-15 16:49:09,949 INFO L482 AbstractCegarLoop]: Interpolant automaton has 61 states. [2020-10-15 16:49:09,949 INFO L276 IsEmpty]: Start isEmpty. Operand 524 states and 1048 transitions. [2020-10-15 16:49:09,950 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2020-10-15 16:49:09,951 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 16:49:09,951 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 16:49:10,164 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,15 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-15 16:49:10,164 INFO L429 AbstractCegarLoop]: === Iteration 20 === [t1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION, t1Err0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 16:49:10,165 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 16:49:10,165 INFO L82 PathProgramCache]: Analyzing trace with hash -145619693, now seen corresponding path program 4 times [2020-10-15 16:49:10,165 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 16:49:10,165 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [320050314] [2020-10-15 16:49:10,165 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 16:49:10,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 16:49:10,593 WARN L193 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 17 DAG size of output: 15 [2020-10-15 16:49:10,722 WARN L193 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 17 DAG size of output: 15 [2020-10-15 16:49:10,925 WARN L193 SmtUtils]: Spent 166.00 ms on a formula simplification. DAG size of input: 31 DAG size of output: 17 [2020-10-15 16:49:11,306 WARN L193 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 24 DAG size of output: 16 [2020-10-15 16:49:11,490 WARN L193 SmtUtils]: Spent 138.00 ms on a formula simplification. DAG size of input: 28 DAG size of output: 20 [2020-10-15 16:49:11,667 WARN L193 SmtUtils]: Spent 124.00 ms on a formula simplification. DAG size of input: 28 DAG size of output: 20 [2020-10-15 16:49:11,958 WARN L193 SmtUtils]: Spent 218.00 ms on a formula simplification. DAG size of input: 38 DAG size of output: 26 [2020-10-15 16:49:12,429 WARN L193 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 27 DAG size of output: 21 [2020-10-15 16:49:12,592 WARN L193 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 27 DAG size of output: 21 [2020-10-15 16:49:12,854 WARN L193 SmtUtils]: Spent 159.00 ms on a formula simplification. DAG size of input: 44 DAG size of output: 24 [2020-10-15 16:49:13,798 WARN L193 SmtUtils]: Spent 164.00 ms on a formula simplification. DAG size of input: 32 DAG size of output: 24 [2020-10-15 16:49:14,817 WARN L193 SmtUtils]: Spent 159.00 ms on a formula simplification. DAG size of input: 29 DAG size of output: 23 [2020-10-15 16:49:17,093 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 150 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 16:49:17,094 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [320050314] [2020-10-15 16:49:17,094 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1481301989] [2020-10-15 16:49:17,094 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 [2020-10-15 16:49:17,240 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2020-10-15 16:49:17,240 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-10-15 16:49:17,244 INFO L263 TraceCheckSpWp]: Trace formula consists of 486 conjuncts, 119 conjunts are in the unsatisfiable core [2020-10-15 16:49:17,248 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-15 16:49:18,144 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 19 treesize of output 15 [2020-10-15 16:49:18,145 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-10-15 16:49:18,241 INFO L625 ElimStorePlain]: treesize reduction 3, result has 92.3 percent of original size [2020-10-15 16:49:18,243 INFO L545 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-10-15 16:49:18,243 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:43, output treesize:50 [2020-10-15 16:49:20,425 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-10-15 16:49:20,428 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 69 treesize of output 41 [2020-10-15 16:49:20,428 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-10-15 16:49:20,524 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-15 16:49:20,527 INFO L545 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-10-15 16:49:20,527 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 4 variables, input treesize:75, output treesize:54 [2020-10-15 16:49:22,507 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-10-15 16:49:22,510 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 69 treesize of output 41 [2020-10-15 16:49:22,510 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-10-15 16:49:22,608 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-15 16:49:22,610 INFO L545 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-10-15 16:49:22,611 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 4 variables, input treesize:75, output treesize:54 [2020-10-15 16:49:24,745 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-10-15 16:49:24,747 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 69 treesize of output 41 [2020-10-15 16:49:24,748 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-10-15 16:49:24,832 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-15 16:49:24,835 INFO L545 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-10-15 16:49:24,836 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 4 variables, input treesize:75, output treesize:54 [2020-10-15 16:49:26,982 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-10-15 16:49:26,985 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 69 treesize of output 41 [2020-10-15 16:49:26,986 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-10-15 16:49:27,072 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-15 16:49:27,075 INFO L545 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-10-15 16:49:27,075 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 4 variables, input treesize:75, output treesize:54 [2020-10-15 16:49:31,716 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-10-15 16:49:31,738 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 79 treesize of output 31 [2020-10-15 16:49:31,754 INFO L721 QuantifierPusher]: Run 10 iterations of DualJunctionQuantifierElimination maybe there is a nontermination bug. [2020-10-15 16:49:31,964 INFO L545 ElimStorePlain]: Start of recursive call 2: 12 dim-0 vars, End of recursive call: 12 dim-0 vars, and 1 xjuncts. [2020-10-15 16:49:31,979 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 76 treesize of output 28 [2020-10-15 16:49:31,987 INFO L545 ElimStorePlain]: Start of recursive call 3: 2 dim-0 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2020-10-15 16:49:32,208 WARN L193 SmtUtils]: Spent 220.00 ms on a formula simplification. DAG size of input: 100 DAG size of output: 22 [2020-10-15 16:49:32,211 INFO L625 ElimStorePlain]: treesize reduction 286, result has 14.6 percent of original size [2020-10-15 16:49:32,212 INFO L545 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2020-10-15 16:49:32,213 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:156, output treesize:49 [2020-10-15 16:49:32,650 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 4 proven. 146 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 16:49:32,651 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-10-15 16:49:32,651 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [36, 36] total 72 [2020-10-15 16:49:32,651 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1514138136] [2020-10-15 16:49:32,651 INFO L461 AbstractCegarLoop]: Interpolant automaton has 73 states [2020-10-15 16:49:32,652 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 16:49:32,652 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 73 interpolants. [2020-10-15 16:49:32,652 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=220, Invalid=5036, Unknown=0, NotChecked=0, Total=5256 [2020-10-15 16:49:32,653 INFO L87 Difference]: Start difference. First operand 524 states and 1048 transitions. Second operand 73 states. [2020-10-15 16:49:36,984 WARN L193 SmtUtils]: Spent 362.00 ms on a formula simplification. DAG size of input: 42 DAG size of output: 36 [2020-10-15 16:49:38,200 WARN L193 SmtUtils]: Spent 242.00 ms on a formula simplification. DAG size of input: 28 DAG size of output: 27 [2020-10-15 16:49:39,677 WARN L193 SmtUtils]: Spent 471.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 39 [2020-10-15 16:49:41,389 WARN L193 SmtUtils]: Spent 808.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 52 [2020-10-15 16:49:43,503 WARN L193 SmtUtils]: Spent 975.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 56 [2020-10-15 16:49:46,437 WARN L193 SmtUtils]: Spent 575.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 51 [2020-10-15 16:49:48,442 WARN L193 SmtUtils]: Spent 378.00 ms on a formula simplification. DAG size of input: 44 DAG size of output: 42 [2020-10-15 16:49:50,449 WARN L193 SmtUtils]: Spent 722.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 54 [2020-10-15 16:49:52,848 WARN L193 SmtUtils]: Spent 1.12 s on a formula simplification. DAG size of input: 88 DAG size of output: 63 [2020-10-15 16:49:56,179 WARN L193 SmtUtils]: Spent 1.67 s on a formula simplification. DAG size of input: 94 DAG size of output: 68 [2020-10-15 16:49:59,445 WARN L193 SmtUtils]: Spent 966.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 59 [2020-10-15 16:50:01,878 WARN L193 SmtUtils]: Spent 596.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 50 [2020-10-15 16:50:04,381 WARN L193 SmtUtils]: Spent 1.17 s on a formula simplification. DAG size of input: 84 DAG size of output: 64 [2020-10-15 16:50:07,277 WARN L193 SmtUtils]: Spent 1.61 s on a formula simplification. DAG size of input: 93 DAG size of output: 73 [2020-10-15 16:50:12,283 WARN L193 SmtUtils]: Spent 2.84 s on a formula simplification. DAG size of input: 112 DAG size of output: 79 [2020-10-15 16:50:16,281 WARN L193 SmtUtils]: Spent 1.18 s on a formula simplification. DAG size of input: 78 DAG size of output: 70 [2020-10-15 16:50:19,666 WARN L193 SmtUtils]: Spent 900.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 61 [2020-10-15 16:50:22,740 WARN L193 SmtUtils]: Spent 1.28 s on a formula simplification. DAG size of input: 96 DAG size of output: 73 [2020-10-15 16:50:26,645 WARN L193 SmtUtils]: Spent 2.10 s on a formula simplification. DAG size of input: 105 DAG size of output: 82 [2020-10-15 16:50:33,112 WARN L193 SmtUtils]: Spent 3.04 s on a formula simplification. DAG size of input: 130 DAG size of output: 90 [2020-10-15 16:50:38,345 WARN L193 SmtUtils]: Spent 1.73 s on a formula simplification. DAG size of input: 79 DAG size of output: 77 [2020-10-15 16:50:43,960 WARN L193 SmtUtils]: Spent 2.19 s on a formula simplification. DAG size of input: 91 DAG size of output: 89 [2020-10-15 16:50:49,651 WARN L193 SmtUtils]: Spent 3.66 s on a formula simplification. DAG size of input: 131 DAG size of output: 99 [2020-10-15 16:50:54,133 WARN L193 SmtUtils]: Spent 2.30 s on a formula simplification. DAG size of input: 99 DAG size of output: 91 [2020-10-15 16:50:58,741 WARN L193 SmtUtils]: Spent 2.89 s on a formula simplification. DAG size of input: 110 DAG size of output: 102 [2020-10-15 16:51:03,094 WARN L193 SmtUtils]: Spent 2.59 s on a formula simplification. DAG size of input: 120 DAG size of output: 112 [2020-10-15 16:51:09,475 WARN L193 SmtUtils]: Spent 2.66 s on a formula simplification. DAG size of input: 108 DAG size of output: 100 [2020-10-15 16:51:15,127 WARN L193 SmtUtils]: Spent 3.63 s on a formula simplification. DAG size of input: 142 DAG size of output: 107 [2020-10-15 16:51:18,782 WARN L193 SmtUtils]: Spent 1.91 s on a formula simplification. DAG size of input: 88 DAG size of output: 80 [2020-10-15 16:51:22,965 WARN L193 SmtUtils]: Spent 2.50 s on a formula simplification. DAG size of input: 99 DAG size of output: 91 [2020-10-15 16:51:26,717 WARN L193 SmtUtils]: Spent 2.21 s on a formula simplification. DAG size of input: 109 DAG size of output: 101 [2020-10-15 16:51:32,703 WARN L193 SmtUtils]: Spent 2.35 s on a formula simplification. DAG size of input: 97 DAG size of output: 89 [2020-10-15 16:51:38,019 WARN L193 SmtUtils]: Spent 3.45 s on a formula simplification. DAG size of input: 122 DAG size of output: 96 [2020-10-15 16:51:41,358 WARN L193 SmtUtils]: Spent 1.53 s on a formula simplification. DAG size of input: 80 DAG size of output: 72 [2020-10-15 16:51:44,769 WARN L193 SmtUtils]: Spent 2.00 s on a formula simplification. DAG size of input: 91 DAG size of output: 83 [2020-10-15 16:51:47,742 WARN L193 SmtUtils]: Spent 1.74 s on a formula simplification. DAG size of input: 101 DAG size of output: 93 [2020-10-15 16:51:52,858 WARN L193 SmtUtils]: Spent 1.99 s on a formula simplification. DAG size of input: 89 DAG size of output: 81 [2020-10-15 16:51:56,840 WARN L193 SmtUtils]: Spent 2.36 s on a formula simplification. DAG size of input: 106 DAG size of output: 87 [2020-10-15 16:51:59,406 WARN L193 SmtUtils]: Spent 1.07 s on a formula simplification. DAG size of input: 67 DAG size of output: 61 [2020-10-15 16:52:02,195 WARN L193 SmtUtils]: Spent 1.57 s on a formula simplification. DAG size of input: 78 DAG size of output: 72 [2020-10-15 16:52:04,578 WARN L193 SmtUtils]: Spent 1.41 s on a formula simplification. DAG size of input: 88 DAG size of output: 82 [2020-10-15 16:52:08,500 WARN L193 SmtUtils]: Spent 1.35 s on a formula simplification. DAG size of input: 72 DAG size of output: 65 [2020-10-15 16:52:10,916 WARN L193 SmtUtils]: Spent 1.41 s on a formula simplification. DAG size of input: 75 DAG size of output: 68 [2020-10-15 16:52:12,087 WARN L193 SmtUtils]: Spent 264.00 ms on a formula simplification. DAG size of input: 36 DAG size of output: 34 [2020-10-15 16:52:13,323 WARN L193 SmtUtils]: Spent 631.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 48 [2020-10-15 16:52:14,489 WARN L193 SmtUtils]: Spent 434.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 56 [2020-10-15 16:52:15,923 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 16:52:15,923 INFO L93 Difference]: Finished difference Result 531 states and 1055 transitions. [2020-10-15 16:52:15,931 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 53 states. [2020-10-15 16:52:15,931 INFO L78 Accepts]: Start accepts. Automaton has 73 states. Word has length 81 [2020-10-15 16:52:15,932 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 16:52:15,932 INFO L225 Difference]: With dead ends: 531 [2020-10-15 16:52:15,933 INFO L226 Difference]: Without dead ends: 0 [2020-10-15 16:52:15,934 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 199 GetRequests, 71 SyntacticMatches, 7 SemanticMatches, 121 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3949 ImplicationChecksByTransitivity, 138.4s TimeCoverageRelationStatistics Valid=1165, Invalid=13841, Unknown=0, NotChecked=0, Total=15006 [2020-10-15 16:52:15,935 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-10-15 16:52:15,935 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-10-15 16:52:15,935 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-10-15 16:52:15,935 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-10-15 16:52:15,935 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 81 [2020-10-15 16:52:15,936 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 16:52:15,936 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-15 16:52:15,936 INFO L482 AbstractCegarLoop]: Interpolant automaton has 73 states. [2020-10-15 16:52:15,936 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-10-15 16:52:15,936 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-10-15 16:52:16,142 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,16 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-15 16:52:16,147 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 15.10 04:52:16 BasicIcfg [2020-10-15 16:52:16,147 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-15 16:52:16,148 INFO L168 Benchmark]: Toolchain (without parser) took 658253.37 ms. Allocated memory was 253.2 MB in the beginning and 257.9 MB in the end (delta: 4.7 MB). Free memory was 207.7 MB in the beginning and 161.4 MB in the end (delta: 46.2 MB). Peak memory consumption was 51.0 MB. Max. memory is 14.2 GB. [2020-10-15 16:52:16,148 INFO L168 Benchmark]: CDTParser took 0.51 ms. Allocated memory is still 253.2 MB. Free memory was 231.3 MB in the beginning and 230.4 MB in the end (delta: 838.9 kB). Peak memory consumption was 838.9 kB. Max. memory is 14.2 GB. [2020-10-15 16:52:16,149 INFO L168 Benchmark]: CACSL2BoogieTranslator took 946.58 ms. Allocated memory was 253.2 MB in the beginning and 319.3 MB in the end (delta: 66.1 MB). Free memory was 207.7 MB in the beginning and 247.2 MB in the end (delta: -39.6 MB). Peak memory consumption was 36.5 MB. Max. memory is 14.2 GB. [2020-10-15 16:52:16,149 INFO L168 Benchmark]: Boogie Procedure Inliner took 70.10 ms. Allocated memory is still 319.3 MB. Free memory was 247.2 MB in the beginning and 244.7 MB in the end (delta: 2.5 MB). Peak memory consumption was 2.5 MB. Max. memory is 14.2 GB. [2020-10-15 16:52:16,149 INFO L168 Benchmark]: Boogie Preprocessor took 43.24 ms. Allocated memory is still 319.3 MB. Free memory was 244.7 MB in the beginning and 243.0 MB in the end (delta: 1.7 MB). Peak memory consumption was 1.7 MB. Max. memory is 14.2 GB. [2020-10-15 16:52:16,150 INFO L168 Benchmark]: RCFGBuilder took 623.10 ms. Allocated memory is still 319.3 MB. Free memory was 243.0 MB in the beginning and 209.9 MB in the end (delta: 33.1 MB). Peak memory consumption was 33.1 MB. Max. memory is 14.2 GB. [2020-10-15 16:52:16,150 INFO L168 Benchmark]: TraceAbstraction took 656564.38 ms. Allocated memory was 319.3 MB in the beginning and 257.9 MB in the end (delta: -61.3 MB). Free memory was 209.1 MB in the beginning and 161.4 MB in the end (delta: 47.6 MB). There was no memory consumed. Max. memory is 14.2 GB. [2020-10-15 16:52:16,151 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.51 ms. Allocated memory is still 253.2 MB. Free memory was 231.3 MB in the beginning and 230.4 MB in the end (delta: 838.9 kB). Peak memory consumption was 838.9 kB. Max. memory is 14.2 GB. * CACSL2BoogieTranslator took 946.58 ms. Allocated memory was 253.2 MB in the beginning and 319.3 MB in the end (delta: 66.1 MB). Free memory was 207.7 MB in the beginning and 247.2 MB in the end (delta: -39.6 MB). Peak memory consumption was 36.5 MB. Max. memory is 14.2 GB. * Boogie Procedure Inliner took 70.10 ms. Allocated memory is still 319.3 MB. Free memory was 247.2 MB in the beginning and 244.7 MB in the end (delta: 2.5 MB). Peak memory consumption was 2.5 MB. Max. memory is 14.2 GB. * Boogie Preprocessor took 43.24 ms. Allocated memory is still 319.3 MB. Free memory was 244.7 MB in the beginning and 243.0 MB in the end (delta: 1.7 MB). Peak memory consumption was 1.7 MB. Max. memory is 14.2 GB. * RCFGBuilder took 623.10 ms. Allocated memory is still 319.3 MB. Free memory was 243.0 MB in the beginning and 209.9 MB in the end (delta: 33.1 MB). Peak memory consumption was 33.1 MB. Max. memory is 14.2 GB. * TraceAbstraction took 656564.38 ms. Allocated memory was 319.3 MB in the beginning and 257.9 MB in the end (delta: -61.3 MB). Free memory was 209.1 MB in the beginning and 161.4 MB in the end (delta: 47.6 MB). There was no memory consumed. Max. memory is 14.2 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks 4309 VarBasedMoverChecksPositive, 78 VarBasedMoverChecksNegative, 15 SemBasedMoverChecksPositive, 63 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.5s, 355 CheckedPairsTotal, LiptonReductionStatistics: ReductionTime: 3.9s, 137 PlacesBefore, 40 PlacesAfterwards, 142 TransitionsBefore, 40 TransitionsAfterwards, 5744 CoEnabledTransitionPairs, 5 FixpointIterations, 30 TrivialSequentialCompositions, 73 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 21 ConcurrentYvCompositions, 5 ChoiceCompositions, 129 TotalNumberOfCompositions, 10078 MoverChecksTotal - PositiveResult [Line: 922]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 922]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 2 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 131 locations, 2 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 656.3s, OverallIterations: 20, TraceHistogramMax: 6, AutomataDifference: 398.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 4.0s, HoareTripleCheckerStatistics: 1362 SDtfs, 7902 SDslu, 14912 SDs, 0 SdLazy, 20769 SolverSat, 1986 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 54.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 1343 GetRequests, 593 SyntacticMatches, 14 SemanticMatches, 736 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22448 ImplicationChecksByTransitivity, 345.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=919occurred in iteration=14, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.4s AutomataMinimizationTime, 20 MinimizatonAttempts, 5622 StatesRemovedByMinimization, 18 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.3s SsaConstructionTime, 1.7s SatisfiabilityAnalysisTime, 246.7s InterpolantComputationTime, 1272 NumberOfCodeBlocks, 1265 NumberOfCodeBlocksAsserted, 60 NumberOfCheckSat, 1237 ConstructedInterpolants, 5 QuantifiedInterpolants, 1175077 SizeOfPredicates, 241 NumberOfNonLiveVariables, 4390 ConjunctsInSsa, 482 ConjunctsInUnsatCore, 35 InterpolantComputations, 7 PerfectInterpolantSequences, 246/1394 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...