/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/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-SemanticLbe.epf -i ../../../trunk/examples/svcomp/pthread-wmm/safe031_rmo.opt.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-7bb8cbd [2020-10-15 22:16:47,569 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-15 22:16:47,572 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-15 22:16:47,599 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-15 22:16:47,600 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-15 22:16:47,601 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-15 22:16:47,602 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-15 22:16:47,604 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-15 22:16:47,606 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-15 22:16:47,607 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-15 22:16:47,608 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-15 22:16:47,609 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-15 22:16:47,609 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-15 22:16:47,610 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-15 22:16:47,611 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-15 22:16:47,612 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-15 22:16:47,613 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-15 22:16:47,614 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-15 22:16:47,616 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-15 22:16:47,617 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-15 22:16:47,619 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-15 22:16:47,620 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-15 22:16:47,621 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-15 22:16:47,622 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-15 22:16:47,624 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-15 22:16:47,624 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-15 22:16:47,624 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-15 22:16:47,625 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-15 22:16:47,626 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-15 22:16:47,627 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-15 22:16:47,627 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-15 22:16:47,628 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-15 22:16:47,628 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-15 22:16:47,629 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-15 22:16:47,630 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-15 22:16:47,630 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-15 22:16:47,631 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-15 22:16:47,631 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-15 22:16:47,631 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-15 22:16:47,632 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-15 22:16:47,633 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-15 22:16:47,634 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-SemanticLbe.epf [2020-10-15 22:16:47,675 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-15 22:16:47,676 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-15 22:16:47,677 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-15 22:16:47,677 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-15 22:16:47,678 INFO L138 SettingsManager]: * Use SBE=true [2020-10-15 22:16:47,678 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-15 22:16:47,678 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-15 22:16:47,678 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-15 22:16:47,678 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-15 22:16:47,679 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-15 22:16:47,679 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-15 22:16:47,679 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-15 22:16:47,679 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-15 22:16:47,679 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-15 22:16:47,680 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-15 22:16:47,680 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-15 22:16:47,680 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-15 22:16:47,682 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-15 22:16:47,682 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-15 22:16:47,682 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-15 22:16:47,682 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-15 22:16:47,682 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-15 22:16:47,683 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-15 22:16:47,683 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-15 22:16:47,683 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-15 22:16:47,683 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-15 22:16:47,683 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-15 22:16:47,684 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-15 22:16:47,684 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-10-15 22:16:48,011 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-15 22:16:48,029 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-15 22:16:48,034 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-15 22:16:48,035 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-15 22:16:48,035 INFO L275 PluginConnector]: CDTParser initialized [2020-10-15 22:16:48,036 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe031_rmo.opt.i [2020-10-15 22:16:48,101 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2064f3548/5668813c50984f9991c8d8538442d772/FLAGd98e54789 [2020-10-15 22:16:48,696 INFO L306 CDTParser]: Found 1 translation units. [2020-10-15 22:16:48,697 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe031_rmo.opt.i [2020-10-15 22:16:48,724 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2064f3548/5668813c50984f9991c8d8538442d772/FLAGd98e54789 [2020-10-15 22:16:48,908 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2064f3548/5668813c50984f9991c8d8538442d772 [2020-10-15 22:16:48,919 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-15 22:16:48,921 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2020-10-15 22:16:48,923 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-15 22:16:48,923 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-15 22:16:48,927 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-15 22:16:48,928 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 10:16:48" (1/1) ... [2020-10-15 22:16:48,933 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4685141c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 10:16:48, skipping insertion in model container [2020-10-15 22:16:48,933 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 10:16:48" (1/1) ... [2020-10-15 22:16:48,942 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-15 22:16:49,011 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-15 22:16:49,505 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-15 22:16:49,518 INFO L203 MainTranslator]: Completed pre-run [2020-10-15 22:16:49,588 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-15 22:16:49,669 INFO L208 MainTranslator]: Completed translation [2020-10-15 22:16:49,670 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 10:16:49 WrapperNode [2020-10-15 22:16:49,670 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-15 22:16:49,671 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-10-15 22:16:49,671 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-10-15 22:16:49,671 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-10-15 22:16:49,680 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 10:16:49" (1/1) ... [2020-10-15 22:16:49,700 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 10:16:49" (1/1) ... [2020-10-15 22:16:49,746 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-10-15 22:16:49,747 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-15 22:16:49,747 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-15 22:16:49,751 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-15 22:16:49,761 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 10:16:49" (1/1) ... [2020-10-15 22:16:49,761 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 10:16:49" (1/1) ... [2020-10-15 22:16:49,781 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 10:16:49" (1/1) ... [2020-10-15 22:16:49,782 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 10:16:49" (1/1) ... [2020-10-15 22:16:49,805 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 10:16:49" (1/1) ... [2020-10-15 22:16:49,811 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 10:16:49" (1/1) ... [2020-10-15 22:16:49,815 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 10:16:49" (1/1) ... [2020-10-15 22:16:49,822 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-15 22:16:49,825 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-15 22:16:49,825 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-15 22:16:49,825 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-15 22:16:49,826 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 10:16:49" (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 22:16:49,892 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-15 22:16:49,893 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2020-10-15 22:16:49,893 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-15 22:16:49,893 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-15 22:16:49,893 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2020-10-15 22:16:49,899 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2020-10-15 22:16:49,901 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2020-10-15 22:16:49,901 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2020-10-15 22:16:49,901 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2020-10-15 22:16:49,901 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2020-10-15 22:16:49,902 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2020-10-15 22:16:49,902 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-15 22:16:49,902 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-15 22:16:49,904 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 22:16:51,718 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-15 22:16:51,719 INFO L298 CfgBuilder]: Removed 10 assume(true) statements. [2020-10-15 22:16:51,721 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 10:16:51 BoogieIcfgContainer [2020-10-15 22:16:51,721 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-15 22:16:51,723 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-15 22:16:51,723 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-15 22:16:51,727 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-15 22:16:51,727 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.10 10:16:48" (1/3) ... [2020-10-15 22:16:51,728 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3928e0a9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 10:16:51, skipping insertion in model container [2020-10-15 22:16:51,728 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 10:16:49" (2/3) ... [2020-10-15 22:16:51,729 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3928e0a9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 10:16:51, skipping insertion in model container [2020-10-15 22:16:51,729 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 10:16:51" (3/3) ... [2020-10-15 22:16:51,731 INFO L111 eAbstractionObserver]: Analyzing ICFG safe031_rmo.opt.i [2020-10-15 22:16:51,743 WARN L153 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2020-10-15 22:16:51,744 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-10-15 22:16:51,752 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 2 error locations. [2020-10-15 22:16:51,753 INFO L348 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2020-10-15 22:16:51,783 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:16:51,784 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:16:51,784 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:16:51,785 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:16:51,785 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:16:51,785 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:16:51,786 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:16:51,786 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:16:51,786 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:16:51,786 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:16:51,787 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:16:51,787 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:16:51,787 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:16:51,787 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:16:51,787 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:16:51,788 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:16:51,788 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:16:51,788 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:16:51,789 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:16:51,789 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:16:51,790 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:16:51,790 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:16:51,790 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:16:51,790 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork1___VERIFIER_assert_~expression not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:16:51,791 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1___VERIFIER_assert_#in~expression| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:16:51,791 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork1___VERIFIER_assert_~expression not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:16:51,791 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1___VERIFIER_assert_#in~expression| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:16:51,791 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:16:51,792 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:16:51,792 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:16:51,792 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:16:51,792 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:16:51,792 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:16:51,792 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:16:51,793 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:16:51,793 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:16:51,797 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:16:51,797 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:16:51,798 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:16:51,798 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:16:51,798 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:16:51,798 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:16:51,798 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:16:51,799 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:16:51,799 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:16:51,799 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:16:51,805 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:16:51,805 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1___VERIFIER_assert_#in~expression| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:16:51,805 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:16:51,805 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:16:51,806 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:16:51,806 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:16:51,806 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:16:51,806 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:16:51,806 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork1___VERIFIER_assert_~expression not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:16:51,807 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:16:51,807 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:16:51,807 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:16:51,809 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:16:51,809 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:16:51,809 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:16:51,810 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:16:51,825 INFO L253 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2020-10-15 22:16:51,849 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-15 22:16:51,849 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-15 22:16:51,849 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-10-15 22:16:51,849 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-15 22:16:51,849 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-15 22:16:51,850 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-15 22:16:51,850 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-15 22:16:51,850 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-15 22:16:51,864 INFO L129 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2020-10-15 22:16:51,867 INFO L144 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 99 places, 91 transitions, 197 flow [2020-10-15 22:16:51,871 INFO L111 LiptonReduction]: Starting Lipton reduction on Petri net that has 99 places, 91 transitions, 197 flow [2020-10-15 22:16:51,873 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 99 places, 91 transitions, 197 flow [2020-10-15 22:16:51,922 INFO L129 PetriNetUnfolder]: 2/88 cut-off events. [2020-10-15 22:16:51,922 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2020-10-15 22:16:51,929 INFO L80 FinitePrefix]: Finished finitePrefix Result has 98 conditions, 88 events. 2/88 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 61 event pairs, 0 based on Foata normal form. 0/84 useless extension candidates. Maximal degree in co-relation 59. Up to 2 conditions per place. [2020-10-15 22:16:51,932 INFO L117 LiptonReduction]: Number of co-enabled transitions 1536 [2020-10-15 22:16:52,384 WARN L193 SmtUtils]: Spent 362.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 58 [2020-10-15 22:16:52,687 INFO L375 QuantifierPusher]: Applying distributivity to a CONJUNCTION[3, 2, 5, 3, 3, 2, 1] term [2020-10-15 22:16:52,688 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-10-15 22:16:52,691 INFO L375 QuantifierPusher]: Applying distributivity to a CONJUNCTION[3, 2, 4, 3, 1] term [2020-10-15 22:16:52,691 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-10-15 22:16:52,720 INFO L375 QuantifierPusher]: Applying distributivity to a CONJUNCTION[3, 2, 5, 3, 3, 2, 1] term [2020-10-15 22:16:52,721 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-10-15 22:16:52,723 INFO L375 QuantifierPusher]: Applying distributivity to a CONJUNCTION[3, 2, 4, 3, 1] term [2020-10-15 22:16:52,723 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-10-15 22:16:52,764 INFO L375 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 2, 4, 3, 3, 2, 1] term [2020-10-15 22:16:52,764 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-15 22:16:52,766 INFO L375 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 2, 4, 3, 1] term [2020-10-15 22:16:52,767 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-15 22:16:52,791 INFO L375 QuantifierPusher]: Applying distributivity to a CONJUNCTION[3, 2, 5, 3, 3, 2, 1] term [2020-10-15 22:16:52,791 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-10-15 22:16:52,793 INFO L375 QuantifierPusher]: Applying distributivity to a CONJUNCTION[3, 2, 4, 3, 1] term [2020-10-15 22:16:52,794 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-10-15 22:16:53,972 WARN L193 SmtUtils]: Spent 1.15 s on a formula simplification. DAG size of input: 226 DAG size of output: 186 [2020-10-15 22:16:53,987 INFO L375 QuantifierPusher]: Applying distributivity to a CONJUNCTION[3, 2, 5, 3, 2, 2, 1] term [2020-10-15 22:16:53,987 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-10-15 22:16:53,988 INFO L375 QuantifierPusher]: Applying distributivity to a CONJUNCTION[3, 2, 4, 3, 1] term [2020-10-15 22:16:53,989 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-10-15 22:16:54,802 WARN L193 SmtUtils]: Spent 802.00 ms on a formula simplification. DAG size of input: 142 DAG size of output: 122 [2020-10-15 22:16:55,061 INFO L375 QuantifierPusher]: Applying distributivity to a CONJUNCTION[3, 2, 5, 3, 3, 2, 1] term [2020-10-15 22:16:55,062 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-10-15 22:16:55,065 INFO L375 QuantifierPusher]: Applying distributivity to a CONJUNCTION[3, 2, 4, 3, 1] term [2020-10-15 22:16:55,066 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-10-15 22:16:55,104 INFO L375 QuantifierPusher]: Applying distributivity to a CONJUNCTION[3, 2, 5, 3, 3, 2, 1] term [2020-10-15 22:16:55,104 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-10-15 22:16:55,105 INFO L375 QuantifierPusher]: Applying distributivity to a CONJUNCTION[3, 2, 4, 3, 1] term [2020-10-15 22:16:55,106 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-10-15 22:16:55,144 INFO L375 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 2, 3, 2, 2, 1] term [2020-10-15 22:16:55,144 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-15 22:16:55,190 INFO L375 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 2, 3, 2, 2, 1] term [2020-10-15 22:16:55,190 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-15 22:16:55,571 WARN L193 SmtUtils]: Spent 113.00 ms on a formula simplification that was a NOOP. DAG size: 55 [2020-10-15 22:16:55,632 INFO L375 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 2, 3, 2, 2, 1] term [2020-10-15 22:16:55,633 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-15 22:16:55,817 INFO L375 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 2, 3, 2, 3, 2, 1] term [2020-10-15 22:16:55,818 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-15 22:16:55,820 INFO L375 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 2, 3, 2, 3, 2, 1] term [2020-10-15 22:16:55,820 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-15 22:16:55,823 INFO L375 QuantifierPusher]: Applying distributivity to a CONJUNCTION[4, 2, 3, 2, 3, 2, 3, 2, 3, 2, 1] term [2020-10-15 22:16:55,824 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-10-15 22:16:55,827 INFO L375 QuantifierPusher]: Applying distributivity to a CONJUNCTION[8, 2, 4, 2, 3, 2, 1] term [2020-10-15 22:16:55,827 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-10-15 22:16:55,849 INFO L375 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 2, 4, 2, 3, 2, 1] term [2020-10-15 22:16:55,850 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-15 22:16:55,851 INFO L375 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 2, 3, 2, 3, 2, 1] term [2020-10-15 22:16:55,852 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-15 22:16:55,855 INFO L375 QuantifierPusher]: Applying distributivity to a CONJUNCTION[4, 2, 3, 2, 3, 2, 3, 2, 3, 2, 1] term [2020-10-15 22:16:55,855 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-10-15 22:16:55,858 INFO L375 QuantifierPusher]: Applying distributivity to a CONJUNCTION[8, 2, 4, 2, 3, 2, 1] term [2020-10-15 22:16:55,858 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-10-15 22:16:56,000 INFO L375 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 2, 4, 2, 3, 2, 1] term [2020-10-15 22:16:56,000 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-15 22:16:56,001 INFO L375 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 2, 3, 2, 3, 2, 1] term [2020-10-15 22:16:56,002 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-15 22:16:56,004 INFO L375 QuantifierPusher]: Applying distributivity to a CONJUNCTION[4, 2, 3, 2, 3, 2, 3, 2, 3, 2, 1] term [2020-10-15 22:16:56,005 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-10-15 22:16:56,007 INFO L375 QuantifierPusher]: Applying distributivity to a CONJUNCTION[8, 2, 4, 2, 3, 2, 1] term [2020-10-15 22:16:56,007 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-10-15 22:16:56,035 INFO L375 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 2, 4, 2, 3, 2, 1] term [2020-10-15 22:16:56,035 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-15 22:16:56,036 INFO L375 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 2, 3, 2, 3, 2, 1] term [2020-10-15 22:16:56,037 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-15 22:16:56,039 INFO L375 QuantifierPusher]: Applying distributivity to a CONJUNCTION[4, 2, 3, 2, 3, 2, 3, 2, 3, 2, 1] term [2020-10-15 22:16:56,040 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-10-15 22:16:56,042 INFO L375 QuantifierPusher]: Applying distributivity to a CONJUNCTION[8, 2, 4, 2, 3, 2, 1] term [2020-10-15 22:16:56,043 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-10-15 22:16:57,039 WARN L193 SmtUtils]: Spent 217.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 85 [2020-10-15 22:16:57,142 WARN L193 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 83 [2020-10-15 22:16:57,150 INFO L132 LiptonReduction]: Checked pairs total: 4104 [2020-10-15 22:16:57,150 INFO L134 LiptonReduction]: Total number of compositions: 77 [2020-10-15 22:16:57,163 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 36 places, 27 transitions, 69 flow [2020-10-15 22:16:57,219 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 770 states. [2020-10-15 22:16:57,221 INFO L276 IsEmpty]: Start isEmpty. Operand 770 states. [2020-10-15 22:16:57,229 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2020-10-15 22:16:57,229 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 22:16:57,230 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2020-10-15 22:16:57,230 INFO L429 AbstractCegarLoop]: === Iteration 1 === [P2Err0ASSERT_VIOLATIONERROR_FUNCTION, P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 22:16:57,236 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 22:16:57,237 INFO L82 PathProgramCache]: Analyzing trace with hash -755541581, now seen corresponding path program 1 times [2020-10-15 22:16:57,247 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 22:16:57,247 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [769877924] [2020-10-15 22:16:57,247 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 22:16:57,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 22:16:57,484 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 22:16:57,485 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [769877924] [2020-10-15 22:16:57,486 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 22:16:57,486 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2020-10-15 22:16:57,487 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1397238102] [2020-10-15 22:16:57,492 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-15 22:16:57,492 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 22:16:57,510 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-15 22:16:57,511 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-15 22:16:57,516 INFO L87 Difference]: Start difference. First operand 770 states. Second operand 3 states. [2020-10-15 22:16:57,660 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 22:16:57,661 INFO L93 Difference]: Finished difference Result 650 states and 2028 transitions. [2020-10-15 22:16:57,666 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-15 22:16:57,668 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 7 [2020-10-15 22:16:57,668 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 22:16:57,704 INFO L225 Difference]: With dead ends: 650 [2020-10-15 22:16:57,705 INFO L226 Difference]: Without dead ends: 550 [2020-10-15 22:16:57,706 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 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 22:16:57,731 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 550 states. [2020-10-15 22:16:57,795 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 550 to 550. [2020-10-15 22:16:57,797 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 550 states. [2020-10-15 22:16:57,806 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 550 states to 550 states and 1693 transitions. [2020-10-15 22:16:57,810 INFO L78 Accepts]: Start accepts. Automaton has 550 states and 1693 transitions. Word has length 7 [2020-10-15 22:16:57,811 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 22:16:57,811 INFO L481 AbstractCegarLoop]: Abstraction has 550 states and 1693 transitions. [2020-10-15 22:16:57,811 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-15 22:16:57,811 INFO L276 IsEmpty]: Start isEmpty. Operand 550 states and 1693 transitions. [2020-10-15 22:16:57,813 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-10-15 22:16:57,814 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 22:16:57,814 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 22:16:57,814 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-15 22:16:57,814 INFO L429 AbstractCegarLoop]: === Iteration 2 === [P2Err0ASSERT_VIOLATIONERROR_FUNCTION, P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 22:16:57,815 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 22:16:57,815 INFO L82 PathProgramCache]: Analyzing trace with hash 1585839773, now seen corresponding path program 1 times [2020-10-15 22:16:57,816 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 22:16:57,817 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1924005612] [2020-10-15 22:16:57,817 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 22:16:57,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 22:16:58,009 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 22:16:58,010 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1924005612] [2020-10-15 22:16:58,010 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 22:16:58,010 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-15 22:16:58,011 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [527158878] [2020-10-15 22:16:58,012 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-15 22:16:58,013 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 22:16:58,013 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-15 22:16:58,013 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-15 22:16:58,013 INFO L87 Difference]: Start difference. First operand 550 states and 1693 transitions. Second operand 5 states. [2020-10-15 22:16:58,132 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 22:16:58,132 INFO L93 Difference]: Finished difference Result 640 states and 1895 transitions. [2020-10-15 22:16:58,133 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-15 22:16:58,133 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 10 [2020-10-15 22:16:58,133 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 22:16:58,138 INFO L225 Difference]: With dead ends: 640 [2020-10-15 22:16:58,138 INFO L226 Difference]: Without dead ends: 540 [2020-10-15 22:16:58,139 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-15 22:16:58,143 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 540 states. [2020-10-15 22:16:58,166 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 540 to 540. [2020-10-15 22:16:58,166 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 540 states. [2020-10-15 22:16:58,169 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 540 states to 540 states and 1655 transitions. [2020-10-15 22:16:58,170 INFO L78 Accepts]: Start accepts. Automaton has 540 states and 1655 transitions. Word has length 10 [2020-10-15 22:16:58,170 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 22:16:58,170 INFO L481 AbstractCegarLoop]: Abstraction has 540 states and 1655 transitions. [2020-10-15 22:16:58,170 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-15 22:16:58,171 INFO L276 IsEmpty]: Start isEmpty. Operand 540 states and 1655 transitions. [2020-10-15 22:16:58,173 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-10-15 22:16:58,173 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 22:16:58,173 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 22:16:58,173 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-15 22:16:58,173 INFO L429 AbstractCegarLoop]: === Iteration 3 === [P2Err0ASSERT_VIOLATIONERROR_FUNCTION, P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 22:16:58,174 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 22:16:58,174 INFO L82 PathProgramCache]: Analyzing trace with hash -1692580395, now seen corresponding path program 1 times [2020-10-15 22:16:58,174 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 22:16:58,174 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1672318617] [2020-10-15 22:16:58,175 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 22:16:58,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 22:16:58,312 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 22:16:58,313 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1672318617] [2020-10-15 22:16:58,313 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 22:16:58,313 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-15 22:16:58,313 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [25537731] [2020-10-15 22:16:58,314 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-15 22:16:58,314 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 22:16:58,314 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-15 22:16:58,314 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-15 22:16:58,315 INFO L87 Difference]: Start difference. First operand 540 states and 1655 transitions. Second operand 5 states. [2020-10-15 22:16:58,405 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 22:16:58,405 INFO L93 Difference]: Finished difference Result 603 states and 1787 transitions. [2020-10-15 22:16:58,406 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-15 22:16:58,406 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 11 [2020-10-15 22:16:58,407 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 22:16:58,411 INFO L225 Difference]: With dead ends: 603 [2020-10-15 22:16:58,411 INFO L226 Difference]: Without dead ends: 528 [2020-10-15 22:16:58,411 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-15 22:16:58,415 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 528 states. [2020-10-15 22:16:58,428 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 528 to 528. [2020-10-15 22:16:58,429 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 528 states. [2020-10-15 22:16:58,431 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 528 states to 528 states and 1611 transitions. [2020-10-15 22:16:58,432 INFO L78 Accepts]: Start accepts. Automaton has 528 states and 1611 transitions. Word has length 11 [2020-10-15 22:16:58,432 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 22:16:58,432 INFO L481 AbstractCegarLoop]: Abstraction has 528 states and 1611 transitions. [2020-10-15 22:16:58,432 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-15 22:16:58,433 INFO L276 IsEmpty]: Start isEmpty. Operand 528 states and 1611 transitions. [2020-10-15 22:16:58,435 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-10-15 22:16:58,435 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 22:16:58,435 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 22:16:58,436 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-15 22:16:58,436 INFO L429 AbstractCegarLoop]: === Iteration 4 === [P2Err0ASSERT_VIOLATIONERROR_FUNCTION, P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 22:16:58,436 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 22:16:58,436 INFO L82 PathProgramCache]: Analyzing trace with hash 1916396224, now seen corresponding path program 1 times [2020-10-15 22:16:58,437 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 22:16:58,437 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [937096193] [2020-10-15 22:16:58,437 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 22:16:58,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 22:16:58,531 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 22:16:58,531 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [937096193] [2020-10-15 22:16:58,531 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 22:16:58,532 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-15 22:16:58,532 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [192874041] [2020-10-15 22:16:58,532 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-15 22:16:58,532 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 22:16:58,533 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-15 22:16:58,533 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-15 22:16:58,533 INFO L87 Difference]: Start difference. First operand 528 states and 1611 transitions. Second operand 5 states. [2020-10-15 22:16:58,618 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 22:16:58,618 INFO L93 Difference]: Finished difference Result 598 states and 1762 transitions. [2020-10-15 22:16:58,619 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-15 22:16:58,619 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 11 [2020-10-15 22:16:58,619 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 22:16:58,623 INFO L225 Difference]: With dead ends: 598 [2020-10-15 22:16:58,623 INFO L226 Difference]: Without dead ends: 518 [2020-10-15 22:16:58,624 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-15 22:16:58,626 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 518 states. [2020-10-15 22:16:58,638 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 518 to 518. [2020-10-15 22:16:58,638 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 518 states. [2020-10-15 22:16:58,640 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 518 states to 518 states and 1573 transitions. [2020-10-15 22:16:58,641 INFO L78 Accepts]: Start accepts. Automaton has 518 states and 1573 transitions. Word has length 11 [2020-10-15 22:16:58,641 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 22:16:58,641 INFO L481 AbstractCegarLoop]: Abstraction has 518 states and 1573 transitions. [2020-10-15 22:16:58,641 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-15 22:16:58,641 INFO L276 IsEmpty]: Start isEmpty. Operand 518 states and 1573 transitions. [2020-10-15 22:16:58,643 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-10-15 22:16:58,643 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 22:16:58,643 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 22:16:58,643 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-15 22:16:58,644 INFO L429 AbstractCegarLoop]: === Iteration 5 === [P2Err0ASSERT_VIOLATIONERROR_FUNCTION, P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 22:16:58,644 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 22:16:58,644 INFO L82 PathProgramCache]: Analyzing trace with hash -930381176, now seen corresponding path program 1 times [2020-10-15 22:16:58,644 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 22:16:58,644 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [178854001] [2020-10-15 22:16:58,645 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 22:16:58,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 22:16:58,753 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 22:16:58,753 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [178854001] [2020-10-15 22:16:58,754 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 22:16:58,754 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-15 22:16:58,754 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [385131873] [2020-10-15 22:16:58,754 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-15 22:16:58,755 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 22:16:58,755 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-15 22:16:58,755 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-10-15 22:16:58,755 INFO L87 Difference]: Start difference. First operand 518 states and 1573 transitions. Second operand 6 states. [2020-10-15 22:16:58,839 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 22:16:58,840 INFO L93 Difference]: Finished difference Result 565 states and 1653 transitions. [2020-10-15 22:16:58,840 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-15 22:16:58,840 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 12 [2020-10-15 22:16:58,841 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 22:16:58,845 INFO L225 Difference]: With dead ends: 565 [2020-10-15 22:16:58,845 INFO L226 Difference]: Without dead ends: 490 [2020-10-15 22:16:58,845 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-10-15 22:16:58,848 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 490 states. [2020-10-15 22:16:58,860 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 490 to 490. [2020-10-15 22:16:58,860 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 490 states. [2020-10-15 22:16:58,863 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 490 states to 490 states and 1469 transitions. [2020-10-15 22:16:58,863 INFO L78 Accepts]: Start accepts. Automaton has 490 states and 1469 transitions. Word has length 12 [2020-10-15 22:16:58,864 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 22:16:58,864 INFO L481 AbstractCegarLoop]: Abstraction has 490 states and 1469 transitions. [2020-10-15 22:16:58,864 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-15 22:16:58,864 INFO L276 IsEmpty]: Start isEmpty. Operand 490 states and 1469 transitions. [2020-10-15 22:16:58,865 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-10-15 22:16:58,865 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 22:16:58,866 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 22:16:58,866 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-15 22:16:58,866 INFO L429 AbstractCegarLoop]: === Iteration 6 === [P2Err0ASSERT_VIOLATIONERROR_FUNCTION, P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 22:16:58,866 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 22:16:58,867 INFO L82 PathProgramCache]: Analyzing trace with hash -1418867355, now seen corresponding path program 1 times [2020-10-15 22:16:58,867 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 22:16:58,867 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1573437162] [2020-10-15 22:16:58,867 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 22:16:58,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 22:16:58,972 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 22:16:58,973 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1573437162] [2020-10-15 22:16:58,973 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 22:16:58,973 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-15 22:16:58,974 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1400880932] [2020-10-15 22:16:58,974 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-15 22:16:58,974 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 22:16:58,975 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-15 22:16:58,975 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-10-15 22:16:58,975 INFO L87 Difference]: Start difference. First operand 490 states and 1469 transitions. Second operand 6 states. [2020-10-15 22:16:59,119 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 22:16:59,120 INFO L93 Difference]: Finished difference Result 562 states and 1656 transitions. [2020-10-15 22:16:59,120 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-15 22:16:59,121 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 13 [2020-10-15 22:16:59,121 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 22:16:59,125 INFO L225 Difference]: With dead ends: 562 [2020-10-15 22:16:59,125 INFO L226 Difference]: Without dead ends: 508 [2020-10-15 22:16:59,125 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2020-10-15 22:16:59,128 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 508 states. [2020-10-15 22:16:59,140 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 508 to 508. [2020-10-15 22:16:59,140 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 508 states. [2020-10-15 22:16:59,142 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 508 states to 508 states and 1529 transitions. [2020-10-15 22:16:59,143 INFO L78 Accepts]: Start accepts. Automaton has 508 states and 1529 transitions. Word has length 13 [2020-10-15 22:16:59,143 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 22:16:59,143 INFO L481 AbstractCegarLoop]: Abstraction has 508 states and 1529 transitions. [2020-10-15 22:16:59,143 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-15 22:16:59,143 INFO L276 IsEmpty]: Start isEmpty. Operand 508 states and 1529 transitions. [2020-10-15 22:16:59,144 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-10-15 22:16:59,145 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 22:16:59,145 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 22:16:59,145 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-15 22:16:59,145 INFO L429 AbstractCegarLoop]: === Iteration 7 === [P2Err0ASSERT_VIOLATIONERROR_FUNCTION, P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 22:16:59,145 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 22:16:59,146 INFO L82 PathProgramCache]: Analyzing trace with hash -885223039, now seen corresponding path program 1 times [2020-10-15 22:16:59,146 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 22:16:59,146 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [464762250] [2020-10-15 22:16:59,146 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 22:16:59,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 22:16:59,243 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 22:16:59,244 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [464762250] [2020-10-15 22:16:59,244 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 22:16:59,244 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-15 22:16:59,244 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [886364225] [2020-10-15 22:16:59,245 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-15 22:16:59,245 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 22:16:59,245 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-15 22:16:59,245 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-10-15 22:16:59,246 INFO L87 Difference]: Start difference. First operand 508 states and 1529 transitions. Second operand 6 states. [2020-10-15 22:16:59,397 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 22:16:59,397 INFO L93 Difference]: Finished difference Result 886 states and 2581 transitions. [2020-10-15 22:16:59,398 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-15 22:16:59,398 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 13 [2020-10-15 22:16:59,398 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 22:16:59,403 INFO L225 Difference]: With dead ends: 886 [2020-10-15 22:16:59,404 INFO L226 Difference]: Without dead ends: 702 [2020-10-15 22:16:59,405 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-15 22:16:59,408 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 702 states. [2020-10-15 22:16:59,424 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 702 to 621. [2020-10-15 22:16:59,424 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 621 states. [2020-10-15 22:16:59,427 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 621 states to 621 states and 1829 transitions. [2020-10-15 22:16:59,427 INFO L78 Accepts]: Start accepts. Automaton has 621 states and 1829 transitions. Word has length 13 [2020-10-15 22:16:59,427 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 22:16:59,428 INFO L481 AbstractCegarLoop]: Abstraction has 621 states and 1829 transitions. [2020-10-15 22:16:59,428 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-15 22:16:59,428 INFO L276 IsEmpty]: Start isEmpty. Operand 621 states and 1829 transitions. [2020-10-15 22:16:59,429 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-10-15 22:16:59,429 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 22:16:59,429 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 22:16:59,430 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-15 22:16:59,430 INFO L429 AbstractCegarLoop]: === Iteration 8 === [P2Err0ASSERT_VIOLATIONERROR_FUNCTION, P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 22:16:59,430 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 22:16:59,430 INFO L82 PathProgramCache]: Analyzing trace with hash -1347281449, now seen corresponding path program 2 times [2020-10-15 22:16:59,431 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 22:16:59,431 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1059098162] [2020-10-15 22:16:59,431 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 22:16:59,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 22:16:59,564 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 22:16:59,565 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1059098162] [2020-10-15 22:16:59,565 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 22:16:59,565 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-15 22:16:59,565 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1140920264] [2020-10-15 22:16:59,566 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-15 22:16:59,566 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 22:16:59,566 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-15 22:16:59,566 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-10-15 22:16:59,567 INFO L87 Difference]: Start difference. First operand 621 states and 1829 transitions. Second operand 6 states. [2020-10-15 22:16:59,632 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 22:16:59,632 INFO L93 Difference]: Finished difference Result 824 states and 2325 transitions. [2020-10-15 22:16:59,633 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-15 22:16:59,633 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 13 [2020-10-15 22:16:59,633 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 22:16:59,637 INFO L225 Difference]: With dead ends: 824 [2020-10-15 22:16:59,638 INFO L226 Difference]: Without dead ends: 604 [2020-10-15 22:16:59,639 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=24, Invalid=32, Unknown=0, NotChecked=0, Total=56 [2020-10-15 22:16:59,642 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 604 states. [2020-10-15 22:16:59,654 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 604 to 482. [2020-10-15 22:16:59,654 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 482 states. [2020-10-15 22:16:59,656 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 482 states to 482 states and 1387 transitions. [2020-10-15 22:16:59,656 INFO L78 Accepts]: Start accepts. Automaton has 482 states and 1387 transitions. Word has length 13 [2020-10-15 22:16:59,656 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 22:16:59,656 INFO L481 AbstractCegarLoop]: Abstraction has 482 states and 1387 transitions. [2020-10-15 22:16:59,656 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-15 22:16:59,657 INFO L276 IsEmpty]: Start isEmpty. Operand 482 states and 1387 transitions. [2020-10-15 22:16:59,658 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2020-10-15 22:16:59,658 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 22:16:59,658 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 22:16:59,658 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-15 22:16:59,658 INFO L429 AbstractCegarLoop]: === Iteration 9 === [P2Err0ASSERT_VIOLATIONERROR_FUNCTION, P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 22:16:59,659 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 22:16:59,659 INFO L82 PathProgramCache]: Analyzing trace with hash -1502303116, now seen corresponding path program 1 times [2020-10-15 22:16:59,663 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 22:16:59,663 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1291138555] [2020-10-15 22:16:59,663 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 22:16:59,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 22:16:59,873 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 22:16:59,873 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1291138555] [2020-10-15 22:16:59,874 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 22:16:59,874 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-15 22:16:59,874 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1338691296] [2020-10-15 22:16:59,874 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-15 22:16:59,875 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 22:16:59,875 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-15 22:16:59,876 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-10-15 22:16:59,876 INFO L87 Difference]: Start difference. First operand 482 states and 1387 transitions. Second operand 7 states. [2020-10-15 22:16:59,992 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 22:16:59,993 INFO L93 Difference]: Finished difference Result 500 states and 1414 transitions. [2020-10-15 22:16:59,994 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-15 22:16:59,994 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 14 [2020-10-15 22:16:59,994 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 22:16:59,998 INFO L225 Difference]: With dead ends: 500 [2020-10-15 22:16:59,998 INFO L226 Difference]: Without dead ends: 470 [2020-10-15 22:16:59,999 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2020-10-15 22:17:00,004 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 470 states. [2020-10-15 22:17:00,019 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 470 to 470. [2020-10-15 22:17:00,019 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 470 states. [2020-10-15 22:17:00,031 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 470 states to 470 states and 1349 transitions. [2020-10-15 22:17:00,031 INFO L78 Accepts]: Start accepts. Automaton has 470 states and 1349 transitions. Word has length 14 [2020-10-15 22:17:00,031 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 22:17:00,032 INFO L481 AbstractCegarLoop]: Abstraction has 470 states and 1349 transitions. [2020-10-15 22:17:00,033 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-15 22:17:00,033 INFO L276 IsEmpty]: Start isEmpty. Operand 470 states and 1349 transitions. [2020-10-15 22:17:00,034 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2020-10-15 22:17:00,034 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 22:17:00,034 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 22:17:00,035 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-10-15 22:17:00,035 INFO L429 AbstractCegarLoop]: === Iteration 10 === [P2Err0ASSERT_VIOLATIONERROR_FUNCTION, P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 22:17:00,035 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 22:17:00,035 INFO L82 PathProgramCache]: Analyzing trace with hash -1992474394, now seen corresponding path program 1 times [2020-10-15 22:17:00,035 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 22:17:00,036 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1172743556] [2020-10-15 22:17:00,036 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 22:17:00,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 22:17:00,140 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 22:17:00,140 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1172743556] [2020-10-15 22:17:00,141 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 22:17:00,141 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-15 22:17:00,141 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1291653103] [2020-10-15 22:17:00,142 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-15 22:17:00,142 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 22:17:00,142 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-15 22:17:00,142 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-10-15 22:17:00,143 INFO L87 Difference]: Start difference. First operand 470 states and 1349 transitions. Second operand 6 states. [2020-10-15 22:17:00,306 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 22:17:00,306 INFO L93 Difference]: Finished difference Result 536 states and 1507 transitions. [2020-10-15 22:17:00,307 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-15 22:17:00,307 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 14 [2020-10-15 22:17:00,307 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 22:17:00,311 INFO L225 Difference]: With dead ends: 536 [2020-10-15 22:17:00,311 INFO L226 Difference]: Without dead ends: 494 [2020-10-15 22:17:00,311 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=24, Invalid=32, Unknown=0, NotChecked=0, Total=56 [2020-10-15 22:17:00,313 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 494 states. [2020-10-15 22:17:00,323 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 494 to 458. [2020-10-15 22:17:00,324 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 458 states. [2020-10-15 22:17:00,325 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 458 states to 458 states and 1302 transitions. [2020-10-15 22:17:00,325 INFO L78 Accepts]: Start accepts. Automaton has 458 states and 1302 transitions. Word has length 14 [2020-10-15 22:17:00,326 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 22:17:00,326 INFO L481 AbstractCegarLoop]: Abstraction has 458 states and 1302 transitions. [2020-10-15 22:17:00,326 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-15 22:17:00,326 INFO L276 IsEmpty]: Start isEmpty. Operand 458 states and 1302 transitions. [2020-10-15 22:17:00,327 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2020-10-15 22:17:00,327 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 22:17:00,327 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 22:17:00,328 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-10-15 22:17:00,328 INFO L429 AbstractCegarLoop]: === Iteration 11 === [P2Err0ASSERT_VIOLATIONERROR_FUNCTION, P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 22:17:00,328 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 22:17:00,328 INFO L82 PathProgramCache]: Analyzing trace with hash -1671456319, now seen corresponding path program 1 times [2020-10-15 22:17:00,328 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 22:17:00,329 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1727915342] [2020-10-15 22:17:00,329 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 22:17:00,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 22:17:00,395 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 22:17:00,395 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1727915342] [2020-10-15 22:17:00,396 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 22:17:00,396 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-15 22:17:00,396 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1448886484] [2020-10-15 22:17:00,396 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-15 22:17:00,397 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 22:17:00,397 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-15 22:17:00,397 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-15 22:17:00,397 INFO L87 Difference]: Start difference. First operand 458 states and 1302 transitions. Second operand 4 states. [2020-10-15 22:17:00,428 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 22:17:00,428 INFO L93 Difference]: Finished difference Result 440 states and 1103 transitions. [2020-10-15 22:17:00,429 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-15 22:17:00,429 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 14 [2020-10-15 22:17:00,429 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 22:17:00,431 INFO L225 Difference]: With dead ends: 440 [2020-10-15 22:17:00,431 INFO L226 Difference]: Without dead ends: 332 [2020-10-15 22:17:00,432 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-15 22:17:00,433 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 332 states. [2020-10-15 22:17:00,440 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 332 to 332. [2020-10-15 22:17:00,440 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 332 states. [2020-10-15 22:17:00,441 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 332 states to 332 states and 814 transitions. [2020-10-15 22:17:00,441 INFO L78 Accepts]: Start accepts. Automaton has 332 states and 814 transitions. Word has length 14 [2020-10-15 22:17:00,441 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 22:17:00,441 INFO L481 AbstractCegarLoop]: Abstraction has 332 states and 814 transitions. [2020-10-15 22:17:00,441 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-15 22:17:00,442 INFO L276 IsEmpty]: Start isEmpty. Operand 332 states and 814 transitions. [2020-10-15 22:17:00,442 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2020-10-15 22:17:00,443 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 22:17:00,443 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 22:17:00,443 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-10-15 22:17:00,443 INFO L429 AbstractCegarLoop]: === Iteration 12 === [P2Err0ASSERT_VIOLATIONERROR_FUNCTION, P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 22:17:00,443 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 22:17:00,443 INFO L82 PathProgramCache]: Analyzing trace with hash 685420267, now seen corresponding path program 1 times [2020-10-15 22:17:00,444 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 22:17:00,444 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1276348374] [2020-10-15 22:17:00,444 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 22:17:00,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 22:17:00,517 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 22:17:00,517 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1276348374] [2020-10-15 22:17:00,517 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 22:17:00,518 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-15 22:17:00,518 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1768502377] [2020-10-15 22:17:00,518 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-15 22:17:00,518 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 22:17:00,519 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-15 22:17:00,519 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-15 22:17:00,519 INFO L87 Difference]: Start difference. First operand 332 states and 814 transitions. Second operand 5 states. [2020-10-15 22:17:00,560 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 22:17:00,561 INFO L93 Difference]: Finished difference Result 261 states and 579 transitions. [2020-10-15 22:17:00,562 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-15 22:17:00,562 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 15 [2020-10-15 22:17:00,562 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 22:17:00,563 INFO L225 Difference]: With dead ends: 261 [2020-10-15 22:17:00,563 INFO L226 Difference]: Without dead ends: 204 [2020-10-15 22:17:00,564 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-10-15 22:17:00,565 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 204 states. [2020-10-15 22:17:00,569 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 204 to 204. [2020-10-15 22:17:00,569 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 204 states. [2020-10-15 22:17:00,570 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 204 states to 204 states and 442 transitions. [2020-10-15 22:17:00,570 INFO L78 Accepts]: Start accepts. Automaton has 204 states and 442 transitions. Word has length 15 [2020-10-15 22:17:00,570 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 22:17:00,570 INFO L481 AbstractCegarLoop]: Abstraction has 204 states and 442 transitions. [2020-10-15 22:17:00,570 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-15 22:17:00,570 INFO L276 IsEmpty]: Start isEmpty. Operand 204 states and 442 transitions. [2020-10-15 22:17:00,571 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-10-15 22:17:00,571 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 22:17:00,571 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 22:17:00,572 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-10-15 22:17:00,572 INFO L429 AbstractCegarLoop]: === Iteration 13 === [P2Err0ASSERT_VIOLATIONERROR_FUNCTION, P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 22:17:00,572 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 22:17:00,572 INFO L82 PathProgramCache]: Analyzing trace with hash -436155594, now seen corresponding path program 1 times [2020-10-15 22:17:00,572 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 22:17:00,573 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1792379495] [2020-10-15 22:17:00,573 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 22:17:00,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 22:17:00,649 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 22:17:00,649 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1792379495] [2020-10-15 22:17:00,650 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 22:17:00,650 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-15 22:17:00,650 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [450188099] [2020-10-15 22:17:00,650 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-15 22:17:00,651 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 22:17:00,651 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-15 22:17:00,651 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-10-15 22:17:00,651 INFO L87 Difference]: Start difference. First operand 204 states and 442 transitions. Second operand 6 states. [2020-10-15 22:17:00,698 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 22:17:00,698 INFO L93 Difference]: Finished difference Result 175 states and 383 transitions. [2020-10-15 22:17:00,699 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-15 22:17:00,699 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 17 [2020-10-15 22:17:00,699 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 22:17:00,700 INFO L225 Difference]: With dead ends: 175 [2020-10-15 22:17:00,700 INFO L226 Difference]: Without dead ends: 96 [2020-10-15 22:17:00,700 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2020-10-15 22:17:00,701 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 96 states. [2020-10-15 22:17:00,702 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 96 to 88. [2020-10-15 22:17:00,703 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 88 states. [2020-10-15 22:17:00,703 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 88 states to 88 states and 177 transitions. [2020-10-15 22:17:00,703 INFO L78 Accepts]: Start accepts. Automaton has 88 states and 177 transitions. Word has length 17 [2020-10-15 22:17:00,703 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 22:17:00,704 INFO L481 AbstractCegarLoop]: Abstraction has 88 states and 177 transitions. [2020-10-15 22:17:00,704 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-15 22:17:00,704 INFO L276 IsEmpty]: Start isEmpty. Operand 88 states and 177 transitions. [2020-10-15 22:17:00,704 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2020-10-15 22:17:00,705 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 22:17:00,705 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 22:17:00,705 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2020-10-15 22:17:00,705 INFO L429 AbstractCegarLoop]: === Iteration 14 === [P2Err0ASSERT_VIOLATIONERROR_FUNCTION, P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 22:17:00,705 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 22:17:00,705 INFO L82 PathProgramCache]: Analyzing trace with hash -1050728128, now seen corresponding path program 1 times [2020-10-15 22:17:00,706 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 22:17:00,706 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2069465993] [2020-10-15 22:17:00,706 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 22:17:00,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 22:17:00,818 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 22:17:00,819 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2069465993] [2020-10-15 22:17:00,819 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 22:17:00,819 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-15 22:17:00,819 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1158257949] [2020-10-15 22:17:00,820 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-15 22:17:00,820 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 22:17:00,820 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-15 22:17:00,820 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2020-10-15 22:17:00,820 INFO L87 Difference]: Start difference. First operand 88 states and 177 transitions. Second operand 7 states. [2020-10-15 22:17:00,938 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 22:17:00,938 INFO L93 Difference]: Finished difference Result 163 states and 323 transitions. [2020-10-15 22:17:00,939 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-15 22:17:00,939 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 21 [2020-10-15 22:17:00,939 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 22:17:00,940 INFO L225 Difference]: With dead ends: 163 [2020-10-15 22:17:00,940 INFO L226 Difference]: Without dead ends: 128 [2020-10-15 22:17:00,940 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=25, Invalid=47, Unknown=0, NotChecked=0, Total=72 [2020-10-15 22:17:00,941 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 128 states. [2020-10-15 22:17:00,943 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 128 to 100. [2020-10-15 22:17:00,943 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 100 states. [2020-10-15 22:17:00,943 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 100 states to 100 states and 198 transitions. [2020-10-15 22:17:00,944 INFO L78 Accepts]: Start accepts. Automaton has 100 states and 198 transitions. Word has length 21 [2020-10-15 22:17:00,944 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 22:17:00,944 INFO L481 AbstractCegarLoop]: Abstraction has 100 states and 198 transitions. [2020-10-15 22:17:00,944 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-15 22:17:00,944 INFO L276 IsEmpty]: Start isEmpty. Operand 100 states and 198 transitions. [2020-10-15 22:17:00,945 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2020-10-15 22:17:00,945 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 22:17:00,945 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 22:17:00,945 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2020-10-15 22:17:00,945 INFO L429 AbstractCegarLoop]: === Iteration 15 === [P2Err0ASSERT_VIOLATIONERROR_FUNCTION, P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 22:17:00,946 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 22:17:00,946 INFO L82 PathProgramCache]: Analyzing trace with hash -107061952, now seen corresponding path program 2 times [2020-10-15 22:17:00,946 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 22:17:00,946 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1057567099] [2020-10-15 22:17:00,946 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 22:17:00,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 22:17:01,134 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 22:17:01,135 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1057567099] [2020-10-15 22:17:01,135 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 22:17:01,135 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-10-15 22:17:01,135 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1167050400] [2020-10-15 22:17:01,136 INFO L461 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-10-15 22:17:01,136 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 22:17:01,136 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-10-15 22:17:01,136 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=86, Unknown=0, NotChecked=0, Total=110 [2020-10-15 22:17:01,137 INFO L87 Difference]: Start difference. First operand 100 states and 198 transitions. Second operand 11 states. [2020-10-15 22:17:01,321 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 22:17:01,321 INFO L93 Difference]: Finished difference Result 127 states and 241 transitions. [2020-10-15 22:17:01,322 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-15 22:17:01,322 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 21 [2020-10-15 22:17:01,322 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 22:17:01,323 INFO L225 Difference]: With dead ends: 127 [2020-10-15 22:17:01,323 INFO L226 Difference]: Without dead ends: 112 [2020-10-15 22:17:01,324 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=35, Invalid=121, Unknown=0, NotChecked=0, Total=156 [2020-10-15 22:17:01,324 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 112 states. [2020-10-15 22:17:01,326 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 112 to 97. [2020-10-15 22:17:01,326 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 97 states. [2020-10-15 22:17:01,327 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 97 states to 97 states and 192 transitions. [2020-10-15 22:17:01,327 INFO L78 Accepts]: Start accepts. Automaton has 97 states and 192 transitions. Word has length 21 [2020-10-15 22:17:01,327 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 22:17:01,327 INFO L481 AbstractCegarLoop]: Abstraction has 97 states and 192 transitions. [2020-10-15 22:17:01,327 INFO L482 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-10-15 22:17:01,327 INFO L276 IsEmpty]: Start isEmpty. Operand 97 states and 192 transitions. [2020-10-15 22:17:01,328 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2020-10-15 22:17:01,328 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 22:17:01,328 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 22:17:01,328 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2020-10-15 22:17:01,328 INFO L429 AbstractCegarLoop]: === Iteration 16 === [P2Err0ASSERT_VIOLATIONERROR_FUNCTION, P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 22:17:01,329 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 22:17:01,329 INFO L82 PathProgramCache]: Analyzing trace with hash 2004904996, now seen corresponding path program 3 times [2020-10-15 22:17:01,329 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 22:17:01,329 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [894656595] [2020-10-15 22:17:01,329 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 22:17:01,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 22:17:01,507 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 22:17:01,507 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [894656595] [2020-10-15 22:17:01,507 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 22:17:01,508 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-10-15 22:17:01,508 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [316860644] [2020-10-15 22:17:01,508 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-15 22:17:01,508 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 22:17:01,509 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-15 22:17:01,509 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2020-10-15 22:17:01,512 INFO L87 Difference]: Start difference. First operand 97 states and 192 transitions. Second operand 10 states. [2020-10-15 22:17:01,675 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 22:17:01,675 INFO L93 Difference]: Finished difference Result 138 states and 270 transitions. [2020-10-15 22:17:01,675 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-10-15 22:17:01,675 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 21 [2020-10-15 22:17:01,676 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 22:17:01,676 INFO L225 Difference]: With dead ends: 138 [2020-10-15 22:17:01,676 INFO L226 Difference]: Without dead ends: 76 [2020-10-15 22:17:01,677 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 0 SyntacticMatches, 1 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=35, Invalid=97, Unknown=0, NotChecked=0, Total=132 [2020-10-15 22:17:01,677 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 76 states. [2020-10-15 22:17:01,679 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 76 to 76. [2020-10-15 22:17:01,679 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 76 states. [2020-10-15 22:17:01,679 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 76 states to 76 states and 153 transitions. [2020-10-15 22:17:01,679 INFO L78 Accepts]: Start accepts. Automaton has 76 states and 153 transitions. Word has length 21 [2020-10-15 22:17:01,680 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 22:17:01,680 INFO L481 AbstractCegarLoop]: Abstraction has 76 states and 153 transitions. [2020-10-15 22:17:01,680 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-15 22:17:01,680 INFO L276 IsEmpty]: Start isEmpty. Operand 76 states and 153 transitions. [2020-10-15 22:17:01,680 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2020-10-15 22:17:01,681 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 22:17:01,681 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 22:17:01,681 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2020-10-15 22:17:01,681 INFO L429 AbstractCegarLoop]: === Iteration 17 === [P2Err0ASSERT_VIOLATIONERROR_FUNCTION, P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 22:17:01,681 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 22:17:01,681 INFO L82 PathProgramCache]: Analyzing trace with hash 96282604, now seen corresponding path program 4 times [2020-10-15 22:17:01,682 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 22:17:01,682 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1450226147] [2020-10-15 22:17:01,682 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 22:17:01,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 22:17:01,895 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 22:17:01,896 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1450226147] [2020-10-15 22:17:01,896 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 22:17:01,896 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-10-15 22:17:01,896 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [190056168] [2020-10-15 22:17:01,898 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-15 22:17:01,898 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 22:17:01,898 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-15 22:17:01,898 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2020-10-15 22:17:01,898 INFO L87 Difference]: Start difference. First operand 76 states and 153 transitions. Second operand 10 states. [2020-10-15 22:17:02,063 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 22:17:02,064 INFO L93 Difference]: Finished difference Result 131 states and 252 transitions. [2020-10-15 22:17:02,064 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-10-15 22:17:02,064 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 21 [2020-10-15 22:17:02,064 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 22:17:02,065 INFO L225 Difference]: With dead ends: 131 [2020-10-15 22:17:02,065 INFO L226 Difference]: Without dead ends: 96 [2020-10-15 22:17:02,065 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=42, Invalid=114, Unknown=0, NotChecked=0, Total=156 [2020-10-15 22:17:02,066 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 96 states. [2020-10-15 22:17:02,067 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 96 to 76. [2020-10-15 22:17:02,067 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 76 states. [2020-10-15 22:17:02,068 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 76 states to 76 states and 145 transitions. [2020-10-15 22:17:02,068 INFO L78 Accepts]: Start accepts. Automaton has 76 states and 145 transitions. Word has length 21 [2020-10-15 22:17:02,068 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 22:17:02,069 INFO L481 AbstractCegarLoop]: Abstraction has 76 states and 145 transitions. [2020-10-15 22:17:02,069 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-15 22:17:02,069 INFO L276 IsEmpty]: Start isEmpty. Operand 76 states and 145 transitions. [2020-10-15 22:17:02,071 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2020-10-15 22:17:02,071 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 22:17:02,071 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 22:17:02,071 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2020-10-15 22:17:02,072 INFO L429 AbstractCegarLoop]: === Iteration 18 === [P2Err0ASSERT_VIOLATIONERROR_FUNCTION, P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 22:17:02,072 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 22:17:02,072 INFO L82 PathProgramCache]: Analyzing trace with hash 1039948780, now seen corresponding path program 5 times [2020-10-15 22:17:02,072 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 22:17:02,072 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [49290608] [2020-10-15 22:17:02,073 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 22:17:02,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 22:17:02,164 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 22:17:02,165 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [49290608] [2020-10-15 22:17:02,165 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 22:17:02,165 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-15 22:17:02,166 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1110780579] [2020-10-15 22:17:02,166 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-15 22:17:02,166 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 22:17:02,166 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-15 22:17:02,167 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2020-10-15 22:17:02,167 INFO L87 Difference]: Start difference. First operand 76 states and 145 transitions. Second operand 7 states. [2020-10-15 22:17:02,260 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 22:17:02,261 INFO L93 Difference]: Finished difference Result 103 states and 194 transitions. [2020-10-15 22:17:02,261 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-15 22:17:02,261 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 21 [2020-10-15 22:17:02,261 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 22:17:02,262 INFO L225 Difference]: With dead ends: 103 [2020-10-15 22:17:02,262 INFO L226 Difference]: Without dead ends: 48 [2020-10-15 22:17:02,262 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2020-10-15 22:17:02,262 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 48 states. [2020-10-15 22:17:02,263 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 48 to 48. [2020-10-15 22:17:02,263 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 48 states. [2020-10-15 22:17:02,264 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48 states to 48 states and 81 transitions. [2020-10-15 22:17:02,264 INFO L78 Accepts]: Start accepts. Automaton has 48 states and 81 transitions. Word has length 21 [2020-10-15 22:17:02,264 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 22:17:02,264 INFO L481 AbstractCegarLoop]: Abstraction has 48 states and 81 transitions. [2020-10-15 22:17:02,264 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-15 22:17:02,264 INFO L276 IsEmpty]: Start isEmpty. Operand 48 states and 81 transitions. [2020-10-15 22:17:02,265 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2020-10-15 22:17:02,265 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 22:17:02,265 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 22:17:02,265 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2020-10-15 22:17:02,265 INFO L429 AbstractCegarLoop]: === Iteration 19 === [P2Err0ASSERT_VIOLATIONERROR_FUNCTION, P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 22:17:02,265 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 22:17:02,266 INFO L82 PathProgramCache]: Analyzing trace with hash -209462780, now seen corresponding path program 6 times [2020-10-15 22:17:02,266 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 22:17:02,266 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1285953279] [2020-10-15 22:17:02,266 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 22:17:02,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 22:17:02,426 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 22:17:02,427 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1285953279] [2020-10-15 22:17:02,427 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 22:17:02,427 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-15 22:17:02,427 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [60839977] [2020-10-15 22:17:02,427 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-15 22:17:02,428 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 22:17:02,428 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-15 22:17:02,428 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2020-10-15 22:17:02,428 INFO L87 Difference]: Start difference. First operand 48 states and 81 transitions. Second operand 7 states. [2020-10-15 22:17:02,561 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 22:17:02,561 INFO L93 Difference]: Finished difference Result 63 states and 104 transitions. [2020-10-15 22:17:02,562 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-15 22:17:02,562 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 21 [2020-10-15 22:17:02,562 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 22:17:02,563 INFO L225 Difference]: With dead ends: 63 [2020-10-15 22:17:02,563 INFO L226 Difference]: Without dead ends: 36 [2020-10-15 22:17:02,563 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2020-10-15 22:17:02,564 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36 states. [2020-10-15 22:17:02,565 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36 to 36. [2020-10-15 22:17:02,565 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 36 states. [2020-10-15 22:17:02,566 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 53 transitions. [2020-10-15 22:17:02,566 INFO L78 Accepts]: Start accepts. Automaton has 36 states and 53 transitions. Word has length 21 [2020-10-15 22:17:02,566 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 22:17:02,566 INFO L481 AbstractCegarLoop]: Abstraction has 36 states and 53 transitions. [2020-10-15 22:17:02,566 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-15 22:17:02,566 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 53 transitions. [2020-10-15 22:17:02,566 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2020-10-15 22:17:02,567 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 22:17:02,567 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 22:17:02,567 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2020-10-15 22:17:02,567 INFO L429 AbstractCegarLoop]: === Iteration 20 === [P2Err0ASSERT_VIOLATIONERROR_FUNCTION, P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 22:17:02,567 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 22:17:02,567 INFO L82 PathProgramCache]: Analyzing trace with hash 1870510084, now seen corresponding path program 7 times [2020-10-15 22:17:02,568 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 22:17:02,568 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [105560354] [2020-10-15 22:17:02,568 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 22:17:02,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-15 22:17:02,596 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-15 22:17:02,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-15 22:17:02,628 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-15 22:17:02,661 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-15 22:17:02,662 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-10-15 22:17:02,662 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2020-10-15 22:17:02,679 WARN L219 RCFGBacktranslator]: You are using large block encoding together with an algorithm for which the backtranslation into program statements is not yet implemented. [2020-10-15 22:17:02,680 ERROR L222 RCFGBacktranslator]: unable to determine which branch was taken, unable to determine the location [2020-10-15 22:17:02,681 WARN L219 RCFGBacktranslator]: You are using large block encoding together with an algorithm for which the backtranslation into program statements is not yet implemented. [2020-10-15 22:17:02,681 ERROR L222 RCFGBacktranslator]: unable to determine which branch was taken, unable to determine the location [2020-10-15 22:17:02,681 WARN L219 RCFGBacktranslator]: You are using large block encoding together with an algorithm for which the backtranslation into program statements is not yet implemented. [2020-10-15 22:17:02,681 ERROR L222 RCFGBacktranslator]: unable to determine which branch was taken, unable to determine the location [2020-10-15 22:17:02,682 WARN L219 RCFGBacktranslator]: You are using large block encoding together with an algorithm for which the backtranslation into program statements is not yet implemented. [2020-10-15 22:17:02,682 ERROR L222 RCFGBacktranslator]: unable to determine which branch was taken, unable to determine the location [2020-10-15 22:17:02,682 WARN L219 RCFGBacktranslator]: You are using large block encoding together with an algorithm for which the backtranslation into program statements is not yet implemented. [2020-10-15 22:17:02,682 ERROR L222 RCFGBacktranslator]: unable to determine which branch was taken, unable to determine the location [2020-10-15 22:17:02,682 WARN L219 RCFGBacktranslator]: You are using large block encoding together with an algorithm for which the backtranslation into program statements is not yet implemented. [2020-10-15 22:17:02,682 ERROR L222 RCFGBacktranslator]: unable to determine which branch was taken, unable to determine the location [2020-10-15 22:17:02,683 WARN L219 RCFGBacktranslator]: You are using large block encoding together with an algorithm for which the backtranslation into program statements is not yet implemented. [2020-10-15 22:17:02,683 ERROR L222 RCFGBacktranslator]: unable to determine which branch was taken, unable to determine the location [2020-10-15 22:17:02,684 WARN L219 RCFGBacktranslator]: You are using large block encoding together with an algorithm for which the backtranslation into program statements is not yet implemented. [2020-10-15 22:17:02,684 ERROR L222 RCFGBacktranslator]: unable to determine which branch was taken, unable to determine the location [2020-10-15 22:17:02,684 WARN L219 RCFGBacktranslator]: You are using large block encoding together with an algorithm for which the backtranslation into program statements is not yet implemented. [2020-10-15 22:17:02,684 ERROR L222 RCFGBacktranslator]: unable to determine which branch was taken, unable to determine the location [2020-10-15 22:17:02,684 WARN L219 RCFGBacktranslator]: You are using large block encoding together with an algorithm for which the backtranslation into program statements is not yet implemented. [2020-10-15 22:17:02,684 ERROR L222 RCFGBacktranslator]: unable to determine which branch was taken, unable to determine the location [2020-10-15 22:17:02,685 WARN L219 RCFGBacktranslator]: You are using large block encoding together with an algorithm for which the backtranslation into program statements is not yet implemented. [2020-10-15 22:17:02,685 ERROR L222 RCFGBacktranslator]: unable to determine which branch was taken, unable to determine the location [2020-10-15 22:17:02,685 WARN L219 RCFGBacktranslator]: You are using large block encoding together with an algorithm for which the backtranslation into program statements is not yet implemented. [2020-10-15 22:17:02,685 ERROR L222 RCFGBacktranslator]: unable to determine which branch was taken, unable to determine the location [2020-10-15 22:17:02,686 WARN L219 RCFGBacktranslator]: You are using large block encoding together with an algorithm for which the backtranslation into program statements is not yet implemented. [2020-10-15 22:17:02,686 ERROR L222 RCFGBacktranslator]: unable to determine which branch was taken, unable to determine the location [2020-10-15 22:17:02,686 WARN L219 RCFGBacktranslator]: You are using large block encoding together with an algorithm for which the backtranslation into program statements is not yet implemented. [2020-10-15 22:17:02,686 ERROR L222 RCFGBacktranslator]: unable to determine which branch was taken, unable to determine the location [2020-10-15 22:17:02,686 WARN L219 RCFGBacktranslator]: You are using large block encoding together with an algorithm for which the backtranslation into program statements is not yet implemented. [2020-10-15 22:17:02,686 ERROR L222 RCFGBacktranslator]: unable to determine which branch was taken, unable to determine the location [2020-10-15 22:17:02,687 WARN L219 RCFGBacktranslator]: You are using large block encoding together with an algorithm for which the backtranslation into program statements is not yet implemented. [2020-10-15 22:17:02,687 ERROR L222 RCFGBacktranslator]: unable to determine which branch was taken, unable to determine the location [2020-10-15 22:17:02,687 WARN L219 RCFGBacktranslator]: You are using large block encoding together with an algorithm for which the backtranslation into program statements is not yet implemented. [2020-10-15 22:17:02,687 ERROR L222 RCFGBacktranslator]: unable to determine which branch was taken, unable to determine the location [2020-10-15 22:17:02,688 WARN L219 RCFGBacktranslator]: You are using large block encoding together with an algorithm for which the backtranslation into program statements is not yet implemented. [2020-10-15 22:17:02,688 ERROR L222 RCFGBacktranslator]: unable to determine which branch was taken, unable to determine the location [2020-10-15 22:17:02,688 WARN L219 RCFGBacktranslator]: You are using large block encoding together with an algorithm for which the backtranslation into program statements is not yet implemented. [2020-10-15 22:17:02,688 ERROR L222 RCFGBacktranslator]: unable to determine which branch was taken, unable to determine the location [2020-10-15 22:17:02,688 WARN L219 RCFGBacktranslator]: You are using large block encoding together with an algorithm for which the backtranslation into program statements is not yet implemented. [2020-10-15 22:17:02,688 ERROR L222 RCFGBacktranslator]: unable to determine which branch was taken, unable to determine the location [2020-10-15 22:17:02,689 WARN L219 RCFGBacktranslator]: You are using large block encoding together with an algorithm for which the backtranslation into program statements is not yet implemented. [2020-10-15 22:17:02,689 ERROR L222 RCFGBacktranslator]: unable to determine which branch was taken, unable to determine the location [2020-10-15 22:17:02,689 WARN L219 RCFGBacktranslator]: You are using large block encoding together with an algorithm for which the backtranslation into program statements is not yet implemented. [2020-10-15 22:17:02,689 ERROR L222 RCFGBacktranslator]: unable to determine which branch was taken, unable to determine the location [2020-10-15 22:17:02,689 WARN L219 RCFGBacktranslator]: You are using large block encoding together with an algorithm for which the backtranslation into program statements is not yet implemented. [2020-10-15 22:17:02,690 ERROR L222 RCFGBacktranslator]: unable to determine which branch was taken, unable to determine the location [2020-10-15 22:17:02,690 WARN L219 RCFGBacktranslator]: You are using large block encoding together with an algorithm for which the backtranslation into program statements is not yet implemented. [2020-10-15 22:17:02,690 ERROR L222 RCFGBacktranslator]: unable to determine which branch was taken, unable to determine the location [2020-10-15 22:17:02,690 WARN L219 RCFGBacktranslator]: You are using large block encoding together with an algorithm for which the backtranslation into program statements is not yet implemented. [2020-10-15 22:17:02,690 ERROR L222 RCFGBacktranslator]: unable to determine which branch was taken, unable to determine the location [2020-10-15 22:17:02,690 WARN L219 RCFGBacktranslator]: You are using large block encoding together with an algorithm for which the backtranslation into program statements is not yet implemented. [2020-10-15 22:17:02,690 ERROR L222 RCFGBacktranslator]: unable to determine which branch was taken, unable to determine the location [2020-10-15 22:17:02,691 WARN L219 RCFGBacktranslator]: You are using large block encoding together with an algorithm for which the backtranslation into program statements is not yet implemented. [2020-10-15 22:17:02,691 ERROR L222 RCFGBacktranslator]: unable to determine which branch was taken, unable to determine the location [2020-10-15 22:17:02,691 WARN L219 RCFGBacktranslator]: You are using large block encoding together with an algorithm for which the backtranslation into program statements is not yet implemented. [2020-10-15 22:17:02,691 ERROR L222 RCFGBacktranslator]: unable to determine which branch was taken, unable to determine the location [2020-10-15 22:17:02,763 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 15.10 10:17:02 BasicIcfg [2020-10-15 22:17:02,764 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-15 22:17:02,765 INFO L168 Benchmark]: Toolchain (without parser) took 13845.25 ms. Allocated memory was 249.0 MB in the beginning and 558.9 MB in the end (delta: 309.9 MB). Free memory was 205.0 MB in the beginning and 432.0 MB in the end (delta: -227.0 MB). Peak memory consumption was 82.9 MB. Max. memory is 14.2 GB. [2020-10-15 22:17:02,766 INFO L168 Benchmark]: CDTParser took 0.47 ms. Allocated memory is still 249.0 MB. Free memory was 227.1 MB in the beginning and 226.3 MB in the end (delta: 839.0 kB). Peak memory consumption was 839.0 kB. Max. memory is 14.2 GB. [2020-10-15 22:17:02,767 INFO L168 Benchmark]: CACSL2BoogieTranslator took 746.96 ms. Allocated memory was 249.0 MB in the beginning and 307.2 MB in the end (delta: 58.2 MB). Free memory was 204.2 MB in the beginning and 258.1 MB in the end (delta: -53.9 MB). Peak memory consumption was 29.5 MB. Max. memory is 14.2 GB. [2020-10-15 22:17:02,768 INFO L168 Benchmark]: Boogie Procedure Inliner took 75.95 ms. Allocated memory is still 307.2 MB. Free memory was 258.1 MB in the beginning and 254.7 MB in the end (delta: 3.4 MB). Peak memory consumption was 3.4 MB. Max. memory is 14.2 GB. [2020-10-15 22:17:02,769 INFO L168 Benchmark]: Boogie Preprocessor took 75.88 ms. Allocated memory is still 307.2 MB. Free memory was 254.7 MB in the beginning and 252.2 MB in the end (delta: 2.5 MB). Peak memory consumption was 2.5 MB. Max. memory is 14.2 GB. [2020-10-15 22:17:02,770 INFO L168 Benchmark]: RCFGBuilder took 1896.58 ms. Allocated memory was 307.2 MB in the beginning and 354.4 MB in the end (delta: 47.2 MB). Free memory was 252.2 MB in the beginning and 201.0 MB in the end (delta: 51.2 MB). Peak memory consumption was 99.1 MB. Max. memory is 14.2 GB. [2020-10-15 22:17:02,770 INFO L168 Benchmark]: TraceAbstraction took 11041.11 ms. Allocated memory was 354.4 MB in the beginning and 558.9 MB in the end (delta: 204.5 MB). Free memory was 201.0 MB in the beginning and 432.0 MB in the end (delta: -231.0 MB). There was no memory consumed. Max. memory is 14.2 GB. [2020-10-15 22:17:02,778 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.47 ms. Allocated memory is still 249.0 MB. Free memory was 227.1 MB in the beginning and 226.3 MB in the end (delta: 839.0 kB). Peak memory consumption was 839.0 kB. Max. memory is 14.2 GB. * CACSL2BoogieTranslator took 746.96 ms. Allocated memory was 249.0 MB in the beginning and 307.2 MB in the end (delta: 58.2 MB). Free memory was 204.2 MB in the beginning and 258.1 MB in the end (delta: -53.9 MB). Peak memory consumption was 29.5 MB. Max. memory is 14.2 GB. * Boogie Procedure Inliner took 75.95 ms. Allocated memory is still 307.2 MB. Free memory was 258.1 MB in the beginning and 254.7 MB in the end (delta: 3.4 MB). Peak memory consumption was 3.4 MB. Max. memory is 14.2 GB. * Boogie Preprocessor took 75.88 ms. Allocated memory is still 307.2 MB. Free memory was 254.7 MB in the beginning and 252.2 MB in the end (delta: 2.5 MB). Peak memory consumption was 2.5 MB. Max. memory is 14.2 GB. * RCFGBuilder took 1896.58 ms. Allocated memory was 307.2 MB in the beginning and 354.4 MB in the end (delta: 47.2 MB). Free memory was 252.2 MB in the beginning and 201.0 MB in the end (delta: 51.2 MB). Peak memory consumption was 99.1 MB. Max. memory is 14.2 GB. * TraceAbstraction took 11041.11 ms. Allocated memory was 354.4 MB in the beginning and 558.9 MB in the end (delta: 204.5 MB). Free memory was 201.0 MB in the beginning and 432.0 MB in the end (delta: -231.0 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 1043 VarBasedMoverChecksPositive, 49 VarBasedMoverChecksNegative, 19 SemBasedMoverChecksPositive, 30 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.7s, 147 CheckedPairsTotal, LiptonReductionStatistics: ReductionTime: 5.2s, 99 PlacesBefore, 36 PlacesAfterwards, 91 TransitionsBefore, 27 TransitionsAfterwards, 1536 CoEnabledTransitionPairs, 7 FixpointIterations, 31 TrivialSequentialCompositions, 37 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 8 ConcurrentYvCompositions, 1 ChoiceCompositions, 77 TotalNumberOfCompositions, 4104 MoverChecksTotal - CounterExampleResult [Line: 7]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L698] 0 int __unbuffered_cnt = 0; [L700] 0 int __unbuffered_p0_EAX = 0; [L701] 0 _Bool main$tmp_guard0; [L702] 0 _Bool main$tmp_guard1; [L704] 0 int x = 0; [L706] 0 int y = 0; [L707] 0 _Bool y$flush_delayed; [L708] 0 int y$mem_tmp; [L709] 0 _Bool y$r_buff0_thd0; [L710] 0 _Bool y$r_buff0_thd1; [L711] 0 _Bool y$r_buff0_thd2; [L712] 0 _Bool y$r_buff0_thd3; [L713] 0 _Bool y$r_buff1_thd0; [L714] 0 _Bool y$r_buff1_thd1; [L715] 0 _Bool y$r_buff1_thd2; [L716] 0 _Bool y$r_buff1_thd3; [L717] 0 _Bool y$read_delayed; [L718] 0 int *y$read_delayed_var; [L719] 0 int y$w_buff0; [L720] 0 _Bool y$w_buff0_used; [L721] 0 int y$w_buff1; [L722] 0 _Bool y$w_buff1_used; [L724] 0 int z = 0; [L725] 0 _Bool weak$$choice0; [L726] 0 _Bool weak$$choice2; [L804] 0 pthread_t t2528; [L805] FCALL, FORK 0 pthread_create(&t2528, ((void *)0), P0, ((void *)0)) VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=0, y$w_buff0_used=0, y$w_buff1=0, y$w_buff1_used=0, z=0] [L806] 0 pthread_t t2529; [L807] FCALL, FORK 0 pthread_create(&t2529, ((void *)0), P1, ((void *)0)) VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=0, y$w_buff0_used=0, y$w_buff1=0, y$w_buff1_used=0, z=0] [L808] 0 pthread_t t2530; [L809] FCALL, FORK 0 pthread_create(&t2530, ((void *)0), P2, ((void *)0)) VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=0, y$w_buff0_used=0, y$w_buff1=0, y$w_buff1_used=0, z=0] [L767] 3 y$w_buff1 = y$w_buff0 [L768] 3 y$w_buff0 = 2 [L769] 3 y$w_buff1_used = y$w_buff0_used [L770] 3 y$w_buff0_used = (_Bool)1 [L7] COND FALSE 3 !(!expression) [L772] 3 y$r_buff1_thd0 = y$r_buff0_thd0 [L773] 3 y$r_buff1_thd1 = y$r_buff0_thd1 [L774] 3 y$r_buff1_thd2 = y$r_buff0_thd2 [L775] 3 y$r_buff1_thd3 = y$r_buff0_thd3 [L776] 3 y$r_buff0_thd3 = (_Bool)1 VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=1, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=2, y$w_buff0_used=1, y$w_buff1=0, y$w_buff1_used=0, z=0] [L779] 3 z = 1 VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=1, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=2, y$w_buff0_used=1, y$w_buff1=0, y$w_buff1_used=0, z=1] [L730] 1 z = 2 VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=1, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=2, y$w_buff0_used=1, y$w_buff1=0, y$w_buff1_used=0, z=2] [L735] 1 __unbuffered_p0_EAX = x VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=1, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=2, y$w_buff0_used=1, y$w_buff1=0, y$w_buff1_used=0, z=2] [L747] 2 x = 1 VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=1, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=1, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=2, y$w_buff0_used=1, y$w_buff1=0, y$w_buff1_used=0, z=2] [L750] 2 y = 1 VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=1, y=1, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=1, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=2, y$w_buff0_used=1, y$w_buff1=0, y$w_buff1_used=0, z=2] [L753] EXPR 2 y$w_buff0_used && y$r_buff0_thd2 ? y$w_buff0 : (y$w_buff1_used && y$r_buff1_thd2 ? y$w_buff1 : y) [L753] 2 y = y$w_buff0_used && y$r_buff0_thd2 ? y$w_buff0 : (y$w_buff1_used && y$r_buff1_thd2 ? y$w_buff1 : y) [L754] EXPR 2 y$w_buff0_used && y$r_buff0_thd2 ? (_Bool)0 : y$w_buff0_used [L754] 2 y$w_buff0_used = y$w_buff0_used && y$r_buff0_thd2 ? (_Bool)0 : y$w_buff0_used [L755] EXPR 2 y$w_buff0_used && y$r_buff0_thd2 || y$w_buff1_used && y$r_buff1_thd2 ? (_Bool)0 : y$w_buff1_used [L755] 2 y$w_buff1_used = y$w_buff0_used && y$r_buff0_thd2 || y$w_buff1_used && y$r_buff1_thd2 ? (_Bool)0 : y$w_buff1_used [L756] EXPR 2 y$w_buff0_used && y$r_buff0_thd2 ? (_Bool)0 : y$r_buff0_thd2 [L756] 2 y$r_buff0_thd2 = y$w_buff0_used && y$r_buff0_thd2 ? (_Bool)0 : y$r_buff0_thd2 [L757] EXPR 2 y$w_buff0_used && y$r_buff0_thd2 || y$w_buff1_used && y$r_buff1_thd2 ? (_Bool)0 : y$r_buff1_thd2 [L757] 2 y$r_buff1_thd2 = y$w_buff0_used && y$r_buff0_thd2 || y$w_buff1_used && y$r_buff1_thd2 ? (_Bool)0 : y$r_buff1_thd2 [L740] 1 __unbuffered_cnt = __unbuffered_cnt + 1 [L742] 1 return 0; [L760] 2 __unbuffered_cnt = __unbuffered_cnt + 1 [L762] 2 return 0; [L782] EXPR 3 y$w_buff0_used && y$r_buff0_thd3 ? y$w_buff0 : (y$w_buff1_used && y$r_buff1_thd3 ? y$w_buff1 : y) [L782] EXPR 3 y$w_buff1_used && y$r_buff1_thd3 ? y$w_buff1 : y [L782] EXPR 3 y$w_buff0_used && y$r_buff0_thd3 ? y$w_buff0 : (y$w_buff1_used && y$r_buff1_thd3 ? y$w_buff1 : y) [L782] 3 y = y$w_buff0_used && y$r_buff0_thd3 ? y$w_buff0 : (y$w_buff1_used && y$r_buff1_thd3 ? y$w_buff1 : y) [L783] EXPR 3 y$w_buff0_used && y$r_buff0_thd3 ? (_Bool)0 : y$w_buff0_used [L783] 3 y$w_buff0_used = y$w_buff0_used && y$r_buff0_thd3 ? (_Bool)0 : y$w_buff0_used [L784] EXPR 3 y$w_buff0_used && y$r_buff0_thd3 || y$w_buff1_used && y$r_buff1_thd3 ? (_Bool)0 : y$w_buff1_used [L784] 3 y$w_buff1_used = y$w_buff0_used && y$r_buff0_thd3 || y$w_buff1_used && y$r_buff1_thd3 ? (_Bool)0 : y$w_buff1_used [L785] EXPR 3 y$w_buff0_used && y$r_buff0_thd3 ? (_Bool)0 : y$r_buff0_thd3 [L785] 3 y$r_buff0_thd3 = y$w_buff0_used && y$r_buff0_thd3 ? (_Bool)0 : y$r_buff0_thd3 [L786] EXPR 3 y$w_buff0_used && y$r_buff0_thd3 || y$w_buff1_used && y$r_buff1_thd3 ? (_Bool)0 : y$r_buff1_thd3 [L786] 3 y$r_buff1_thd3 = y$w_buff0_used && y$r_buff0_thd3 || y$w_buff1_used && y$r_buff1_thd3 ? (_Bool)0 : y$r_buff1_thd3 [L789] 3 __unbuffered_cnt = __unbuffered_cnt + 1 [L791] 3 return 0; [L811] 0 main$tmp_guard0 = __unbuffered_cnt == 3 [L3] COND FALSE 0 !(!cond) [L815] EXPR 0 y$w_buff0_used && y$r_buff0_thd0 ? y$w_buff0 : (y$w_buff1_used && y$r_buff1_thd0 ? y$w_buff1 : y) [L815] 0 y = y$w_buff0_used && y$r_buff0_thd0 ? y$w_buff0 : (y$w_buff1_used && y$r_buff1_thd0 ? y$w_buff1 : y) [L816] EXPR 0 y$w_buff0_used && y$r_buff0_thd0 ? (_Bool)0 : y$w_buff0_used [L816] 0 y$w_buff0_used = y$w_buff0_used && y$r_buff0_thd0 ? (_Bool)0 : y$w_buff0_used [L817] EXPR 0 y$w_buff0_used && y$r_buff0_thd0 || y$w_buff1_used && y$r_buff1_thd0 ? (_Bool)0 : y$w_buff1_used [L817] 0 y$w_buff1_used = y$w_buff0_used && y$r_buff0_thd0 || y$w_buff1_used && y$r_buff1_thd0 ? (_Bool)0 : y$w_buff1_used [L818] EXPR 0 y$w_buff0_used && y$r_buff0_thd0 ? (_Bool)0 : y$r_buff0_thd0 [L818] 0 y$r_buff0_thd0 = y$w_buff0_used && y$r_buff0_thd0 ? (_Bool)0 : y$r_buff0_thd0 [L819] EXPR 0 y$w_buff0_used && y$r_buff0_thd0 || y$w_buff1_used && y$r_buff1_thd0 ? (_Bool)0 : y$r_buff1_thd0 [L819] 0 y$r_buff1_thd0 = y$w_buff0_used && y$r_buff0_thd0 || y$w_buff1_used && y$r_buff1_thd0 ? (_Bool)0 : y$r_buff1_thd0 [L822] 0 weak$$choice0 = __VERIFIER_nondet_bool() [L823] 0 weak$$choice2 = __VERIFIER_nondet_bool() [L824] 0 y$flush_delayed = weak$$choice2 [L825] 0 y$mem_tmp = y [L826] EXPR 0 !y$w_buff0_used || !y$r_buff0_thd0 && !y$w_buff1_used || !y$r_buff0_thd0 && !y$r_buff1_thd0 ? y : (y$w_buff0_used && y$r_buff0_thd0 ? y$w_buff0 : y$w_buff1) [L826] 0 y = !y$w_buff0_used || !y$r_buff0_thd0 && !y$w_buff1_used || !y$r_buff0_thd0 && !y$r_buff1_thd0 ? y : (y$w_buff0_used && y$r_buff0_thd0 ? y$w_buff0 : y$w_buff1) [L827] EXPR 0 weak$$choice2 ? y$w_buff0 : (!y$w_buff0_used || !y$r_buff0_thd0 && !y$w_buff1_used || !y$r_buff0_thd0 && !y$r_buff1_thd0 ? y$w_buff0 : (y$w_buff0_used && y$r_buff0_thd0 ? y$w_buff0 : y$w_buff0)) [L827] EXPR 0 !y$w_buff0_used || !y$r_buff0_thd0 && !y$w_buff1_used || !y$r_buff0_thd0 && !y$r_buff1_thd0 ? y$w_buff0 : (y$w_buff0_used && y$r_buff0_thd0 ? y$w_buff0 : y$w_buff0) [L827] EXPR 0 weak$$choice2 ? y$w_buff0 : (!y$w_buff0_used || !y$r_buff0_thd0 && !y$w_buff1_used || !y$r_buff0_thd0 && !y$r_buff1_thd0 ? y$w_buff0 : (y$w_buff0_used && y$r_buff0_thd0 ? y$w_buff0 : y$w_buff0)) [L827] 0 y$w_buff0 = weak$$choice2 ? y$w_buff0 : (!y$w_buff0_used || !y$r_buff0_thd0 && !y$w_buff1_used || !y$r_buff0_thd0 && !y$r_buff1_thd0 ? y$w_buff0 : (y$w_buff0_used && y$r_buff0_thd0 ? y$w_buff0 : y$w_buff0)) [L828] EXPR 0 weak$$choice2 ? y$w_buff1 : (!y$w_buff0_used || !y$r_buff0_thd0 && !y$w_buff1_used || !y$r_buff0_thd0 && !y$r_buff1_thd0 ? y$w_buff1 : (y$w_buff0_used && y$r_buff0_thd0 ? y$w_buff1 : y$w_buff1)) [L828] EXPR 0 !y$w_buff0_used || !y$r_buff0_thd0 && !y$w_buff1_used || !y$r_buff0_thd0 && !y$r_buff1_thd0 ? y$w_buff1 : (y$w_buff0_used && y$r_buff0_thd0 ? y$w_buff1 : y$w_buff1) [L828] EXPR 0 weak$$choice2 ? y$w_buff1 : (!y$w_buff0_used || !y$r_buff0_thd0 && !y$w_buff1_used || !y$r_buff0_thd0 && !y$r_buff1_thd0 ? y$w_buff1 : (y$w_buff0_used && y$r_buff0_thd0 ? y$w_buff1 : y$w_buff1)) [L828] 0 y$w_buff1 = weak$$choice2 ? y$w_buff1 : (!y$w_buff0_used || !y$r_buff0_thd0 && !y$w_buff1_used || !y$r_buff0_thd0 && !y$r_buff1_thd0 ? y$w_buff1 : (y$w_buff0_used && y$r_buff0_thd0 ? y$w_buff1 : y$w_buff1)) [L829] EXPR 0 weak$$choice2 ? y$w_buff0_used : (!y$w_buff0_used || !y$r_buff0_thd0 && !y$w_buff1_used || !y$r_buff0_thd0 && !y$r_buff1_thd0 ? y$w_buff0_used : (y$w_buff0_used && y$r_buff0_thd0 ? (_Bool)0 : y$w_buff0_used)) [L829] 0 y$w_buff0_used = weak$$choice2 ? y$w_buff0_used : (!y$w_buff0_used || !y$r_buff0_thd0 && !y$w_buff1_used || !y$r_buff0_thd0 && !y$r_buff1_thd0 ? y$w_buff0_used : (y$w_buff0_used && y$r_buff0_thd0 ? (_Bool)0 : y$w_buff0_used)) [L830] EXPR 0 weak$$choice2 ? y$w_buff1_used : (!y$w_buff0_used || !y$r_buff0_thd0 && !y$w_buff1_used || !y$r_buff0_thd0 && !y$r_buff1_thd0 ? y$w_buff1_used : (y$w_buff0_used && y$r_buff0_thd0 ? (_Bool)0 : (_Bool)0)) [L830] EXPR 0 !y$w_buff0_used || !y$r_buff0_thd0 && !y$w_buff1_used || !y$r_buff0_thd0 && !y$r_buff1_thd0 ? y$w_buff1_used : (y$w_buff0_used && y$r_buff0_thd0 ? (_Bool)0 : (_Bool)0) [L830] EXPR 0 weak$$choice2 ? y$w_buff1_used : (!y$w_buff0_used || !y$r_buff0_thd0 && !y$w_buff1_used || !y$r_buff0_thd0 && !y$r_buff1_thd0 ? y$w_buff1_used : (y$w_buff0_used && y$r_buff0_thd0 ? (_Bool)0 : (_Bool)0)) [L830] 0 y$w_buff1_used = weak$$choice2 ? y$w_buff1_used : (!y$w_buff0_used || !y$r_buff0_thd0 && !y$w_buff1_used || !y$r_buff0_thd0 && !y$r_buff1_thd0 ? y$w_buff1_used : (y$w_buff0_used && y$r_buff0_thd0 ? (_Bool)0 : (_Bool)0)) [L831] EXPR 0 weak$$choice2 ? y$r_buff0_thd0 : (!y$w_buff0_used || !y$r_buff0_thd0 && !y$w_buff1_used || !y$r_buff0_thd0 && !y$r_buff1_thd0 ? y$r_buff0_thd0 : (y$w_buff0_used && y$r_buff0_thd0 ? (_Bool)0 : y$r_buff0_thd0)) [L831] 0 y$r_buff0_thd0 = weak$$choice2 ? y$r_buff0_thd0 : (!y$w_buff0_used || !y$r_buff0_thd0 && !y$w_buff1_used || !y$r_buff0_thd0 && !y$r_buff1_thd0 ? y$r_buff0_thd0 : (y$w_buff0_used && y$r_buff0_thd0 ? (_Bool)0 : y$r_buff0_thd0)) [L832] EXPR 0 weak$$choice2 ? y$r_buff1_thd0 : (!y$w_buff0_used || !y$r_buff0_thd0 && !y$w_buff1_used || !y$r_buff0_thd0 && !y$r_buff1_thd0 ? y$r_buff1_thd0 : (y$w_buff0_used && y$r_buff0_thd0 ? (_Bool)0 : (_Bool)0)) [L832] 0 y$r_buff1_thd0 = weak$$choice2 ? y$r_buff1_thd0 : (!y$w_buff0_used || !y$r_buff0_thd0 && !y$w_buff1_used || !y$r_buff0_thd0 && !y$r_buff1_thd0 ? y$r_buff1_thd0 : (y$w_buff0_used && y$r_buff0_thd0 ? (_Bool)0 : (_Bool)0)) [L833] 0 main$tmp_guard1 = !(y == 2 && z == 2 && __unbuffered_p0_EAX == 0) [L834] EXPR 0 y$flush_delayed ? y$mem_tmp : y [L834] 0 y = y$flush_delayed ? y$mem_tmp : y [L835] 0 y$flush_delayed = (_Bool)0 [L7] COND TRUE 0 !expression [L7] 0 __VERIFIER_error() VAL [\result={0:0}, \result={0:0}, __unbuffered_cnt=3, __unbuffered_p0_EAX=0, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=1, main$tmp_guard1=0, weak$$choice0=7, weak$$choice2=255, x=1, y=2, y$flush_delayed=0, y$mem_tmp=2, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=1, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=2, y$w_buff0_used=0, y$w_buff1=0, y$w_buff1_used=0, z=2] - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 90 locations, 2 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 10.8s, OverallIterations: 20, TraceHistogramMax: 1, AutomataDifference: 2.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 5.3s, HoareTripleCheckerStatistics: 542 SDtfs, 644 SDslu, 1278 SDs, 0 SdLazy, 756 SolverSat, 189 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 1.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 127 GetRequests, 12 SyntacticMatches, 1 SemanticMatches, 114 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 100 ImplicationChecksByTransitivity, 1.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=770occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.3s AutomataMinimizationTime, 19 MinimizatonAttempts, 310 StatesRemovedByMinimization, 7 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.6s SatisfiabilityAnalysisTime, 1.7s InterpolantComputationTime, 311 NumberOfCodeBlocks, 311 NumberOfCodeBlocksAsserted, 20 NumberOfCheckSat, 271 ConstructedInterpolants, 0 QuantifiedInterpolants, 38873 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 19 InterpolantComputations, 19 PerfectInterpolantSequences, 0/0 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 incorrect! Received shutdown request...