/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-NoLbe-McrStrategy.epf -i ../../../trunk/examples/svcomp/pthread-wmm/safe007_pso.opt.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-b981219 [2020-04-18 19:20:25,828 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-04-18 19:20:25,831 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-04-18 19:20:25,843 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-04-18 19:20:25,844 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-04-18 19:20:25,845 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-04-18 19:20:25,846 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-04-18 19:20:25,850 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-04-18 19:20:25,852 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-04-18 19:20:25,853 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-04-18 19:20:25,854 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-04-18 19:20:25,855 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-04-18 19:20:25,855 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-04-18 19:20:25,856 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-04-18 19:20:25,857 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-04-18 19:20:25,858 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-04-18 19:20:25,859 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-04-18 19:20:25,860 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-04-18 19:20:25,861 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-04-18 19:20:25,863 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-04-18 19:20:25,864 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-04-18 19:20:25,865 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-04-18 19:20:25,866 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-04-18 19:20:25,867 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-04-18 19:20:25,869 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-04-18 19:20:25,870 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-04-18 19:20:25,870 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-04-18 19:20:25,871 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-04-18 19:20:25,871 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-04-18 19:20:25,872 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-04-18 19:20:25,872 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-04-18 19:20:25,873 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-04-18 19:20:25,873 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-04-18 19:20:25,874 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-04-18 19:20:25,875 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-04-18 19:20:25,875 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-04-18 19:20:25,878 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-04-18 19:20:25,878 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-04-18 19:20:25,878 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-04-18 19:20:25,879 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-04-18 19:20:25,880 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-04-18 19:20:25,882 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-NoLbe-McrStrategy.epf [2020-04-18 19:20:25,907 INFO L113 SettingsManager]: Loading preferences was successful [2020-04-18 19:20:25,907 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-04-18 19:20:25,910 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-04-18 19:20:25,911 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-04-18 19:20:25,911 INFO L138 SettingsManager]: * Use SBE=true [2020-04-18 19:20:25,911 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-04-18 19:20:25,911 INFO L138 SettingsManager]: * sizeof long=4 [2020-04-18 19:20:25,911 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-04-18 19:20:25,911 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-04-18 19:20:25,912 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-04-18 19:20:25,912 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-04-18 19:20:25,912 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-04-18 19:20:25,912 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-04-18 19:20:25,912 INFO L138 SettingsManager]: * sizeof long double=12 [2020-04-18 19:20:25,913 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-04-18 19:20:25,913 INFO L138 SettingsManager]: * Use constant arrays=true [2020-04-18 19:20:25,913 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-04-18 19:20:25,913 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-04-18 19:20:25,913 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-04-18 19:20:25,913 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-04-18 19:20:25,914 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-04-18 19:20:25,914 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-04-18 19:20:25,914 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-04-18 19:20:25,914 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-04-18 19:20:25,915 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-04-18 19:20:25,915 INFO L138 SettingsManager]: * Trace refinement strategy=MCR [2020-04-18 19:20:25,915 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-04-18 19:20:25,915 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2020-04-18 19:20:25,915 INFO L138 SettingsManager]: * Trace refinement strategy used in MCR=CAMEL [2020-04-18 19:20:25,916 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-04-18 19:20:25,916 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-04-18 19:20:26,185 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-04-18 19:20:26,199 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-04-18 19:20:26,203 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-04-18 19:20:26,204 INFO L271 PluginConnector]: Initializing CDTParser... [2020-04-18 19:20:26,205 INFO L275 PluginConnector]: CDTParser initialized [2020-04-18 19:20:26,205 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe007_pso.opt.i [2020-04-18 19:20:26,266 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9c1763a0c/8c40c223c90e4d80b596048b1ed433da/FLAGd9df4a429 [2020-04-18 19:20:26,787 INFO L306 CDTParser]: Found 1 translation units. [2020-04-18 19:20:26,788 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe007_pso.opt.i [2020-04-18 19:20:26,815 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9c1763a0c/8c40c223c90e4d80b596048b1ed433da/FLAGd9df4a429 [2020-04-18 19:20:27,086 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9c1763a0c/8c40c223c90e4d80b596048b1ed433da [2020-04-18 19:20:27,095 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-04-18 19:20:27,117 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2020-04-18 19:20:27,118 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-04-18 19:20:27,118 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-04-18 19:20:27,122 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-04-18 19:20:27,123 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.04 07:20:27" (1/1) ... [2020-04-18 19:20:27,125 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@297684a9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 07:20:27, skipping insertion in model container [2020-04-18 19:20:27,126 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.04 07:20:27" (1/1) ... [2020-04-18 19:20:27,134 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-04-18 19:20:27,196 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-04-18 19:20:27,642 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-04-18 19:20:27,653 INFO L203 MainTranslator]: Completed pre-run [2020-04-18 19:20:27,722 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-04-18 19:20:27,791 INFO L208 MainTranslator]: Completed translation [2020-04-18 19:20:27,791 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 07:20:27 WrapperNode [2020-04-18 19:20:27,791 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-04-18 19:20:27,792 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-04-18 19:20:27,792 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-04-18 19:20:27,792 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-04-18 19:20:27,801 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 07:20:27" (1/1) ... [2020-04-18 19:20:27,818 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 07:20:27" (1/1) ... [2020-04-18 19:20:27,842 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-04-18 19:20:27,842 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-04-18 19:20:27,842 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-04-18 19:20:27,843 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-04-18 19:20:27,850 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 07:20:27" (1/1) ... [2020-04-18 19:20:27,850 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 07:20:27" (1/1) ... [2020-04-18 19:20:27,852 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 07:20:27" (1/1) ... [2020-04-18 19:20:27,853 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 07:20:27" (1/1) ... [2020-04-18 19:20:27,859 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 07:20:27" (1/1) ... [2020-04-18 19:20:27,861 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 07:20:27" (1/1) ... [2020-04-18 19:20:27,863 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 07:20:27" (1/1) ... [2020-04-18 19:20:27,866 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-04-18 19:20:27,867 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-04-18 19:20:27,867 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-04-18 19:20:27,867 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-04-18 19:20:27,868 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 07:20:27" (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 [2020-04-18 19:20:27,921 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-04-18 19:20:27,921 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2020-04-18 19:20:27,921 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-04-18 19:20:27,922 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-04-18 19:20:27,922 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2020-04-18 19:20:27,922 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2020-04-18 19:20:27,923 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2020-04-18 19:20:27,923 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2020-04-18 19:20:27,924 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2020-04-18 19:20:27,924 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2020-04-18 19:20:27,924 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2020-04-18 19:20:27,924 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-04-18 19:20:27,925 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-04-18 19:20:27,928 WARN L205 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2020-04-18 19:20:28,321 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-04-18 19:20:28,321 INFO L295 CfgBuilder]: Removed 8 assume(true) statements. [2020-04-18 19:20:28,325 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.04 07:20:28 BoogieIcfgContainer [2020-04-18 19:20:28,326 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-04-18 19:20:28,327 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-04-18 19:20:28,327 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-04-18 19:20:28,330 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-04-18 19:20:28,331 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.04 07:20:27" (1/3) ... [2020-04-18 19:20:28,332 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@29de8edf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.04 07:20:28, skipping insertion in model container [2020-04-18 19:20:28,332 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 07:20:27" (2/3) ... [2020-04-18 19:20:28,332 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@29de8edf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.04 07:20:28, skipping insertion in model container [2020-04-18 19:20:28,333 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.04 07:20:28" (3/3) ... [2020-04-18 19:20:28,335 INFO L109 eAbstractionObserver]: Analyzing ICFG safe007_pso.opt.i [2020-04-18 19:20:28,345 WARN L146 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2020-04-18 19:20:28,345 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-04-18 19:20:28,352 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-04-18 19:20:28,353 INFO L340 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2020-04-18 19:20:28,377 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 19:20:28,378 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 19:20:28,378 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 19:20:28,378 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 19:20:28,379 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 19:20:28,379 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 19:20:28,380 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 19:20:28,380 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 19:20:28,380 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 19:20:28,380 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 19:20:28,381 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 19:20:28,381 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 19:20:28,382 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 19:20:28,382 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 19:20:28,382 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 19:20:28,382 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 19:20:28,383 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 19:20:28,383 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 19:20:28,387 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 19:20:28,388 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 19:20:28,388 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 19:20:28,388 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 19:20:28,397 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 19:20:28,397 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 19:20:28,398 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 19:20:28,398 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 19:20:28,406 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 19:20:28,406 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 19:20:28,407 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 19:20:28,407 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 19:20:28,426 INFO L251 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2020-04-18 19:20:28,443 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-04-18 19:20:28,444 INFO L376 AbstractCegarLoop]: Hoare is true [2020-04-18 19:20:28,444 INFO L377 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-04-18 19:20:28,444 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-04-18 19:20:28,444 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-04-18 19:20:28,444 INFO L380 AbstractCegarLoop]: Difference is false [2020-04-18 19:20:28,445 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-04-18 19:20:28,445 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-04-18 19:20:28,458 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 79 places, 71 transitions, 157 flow [2020-04-18 19:20:29,082 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 8473 states. [2020-04-18 19:20:29,085 INFO L276 IsEmpty]: Start isEmpty. Operand 8473 states. [2020-04-18 19:20:29,120 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2020-04-18 19:20:29,121 INFO L417 BasicCegarLoop]: Found error trace [2020-04-18 19:20:29,122 INFO L425 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-04-18 19:20:29,123 INFO L427 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-04-18 19:20:29,129 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 19:20:29,129 INFO L82 PathProgramCache]: Analyzing trace with hash 642340523, now seen corresponding path program 1 times [2020-04-18 19:20:29,137 INFO L163 FreeRefinementEngine]: Executing refinement strategy MCR [2020-04-18 19:20:29,137 INFO L354 FreeRefinementEngine]: Using trace check StrategyModuleMcr [677893164] [2020-04-18 19:20:29,154 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 19:20:29,167 INFO L259 McrAutomatonBuilder]: Finished intersection with 38 states and 37 transitions. [2020-04-18 19:20:29,169 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states. [2020-04-18 19:20:29,170 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2020-04-18 19:20:29,170 INFO L105 Mcr]: ---- MCR iteration 0 ---- [2020-04-18 19:20:29,170 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 19:20:29,171 INFO L82 PathProgramCache]: Analyzing trace with hash 642340523, now seen corresponding path program 2 times [2020-04-18 19:20:29,175 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-18 19:20:29,175 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [732790698] [2020-04-18 19:20:29,175 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-18 19:20:29,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-18 19:20:29,685 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-04-18 19:20:29,686 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [732790698] [2020-04-18 19:20:29,687 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-18 19:20:29,687 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-04-18 19:20:29,689 INFO L201 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-04-18 19:20:29,693 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 19:20:29,705 INFO L259 McrAutomatonBuilder]: Finished intersection with 38 states and 37 transitions. [2020-04-18 19:20:29,706 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-04-18 19:20:29,763 INFO L356 McrAutomatonBuilder]: Construction finished. Needed to calculate wp 0 times. [2020-04-18 19:20:29,767 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-04-18 19:20:29,768 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-04-18 19:20:29,770 INFO L87 Difference]: Start difference. First operand 38 states. Second operand 6 states. [2020-04-18 19:20:29,887 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 19:20:29,887 INFO L93 Difference]: Finished difference Result 38 states and 37 transitions. [2020-04-18 19:20:29,888 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 37 transitions. [2020-04-18 19:20:29,888 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-04-18 19:20:29,889 INFO L354 FreeRefinementEngine]: Using interpolant generator StrategyModuleMcr [677893164] [2020-04-18 19:20:29,890 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-04-18 19:20:29,890 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2020-04-18 19:20:29,890 INFO L156 tionRefinementEngine]: Using interpolant automaton builder StrategyModuleMcr [677893164] [2020-04-18 19:20:29,893 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-04-18 19:20:29,893 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy MCR [2020-04-18 19:20:29,899 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-04-18 19:20:29,900 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2020-04-18 19:20:29,900 INFO L87 Difference]: Start difference. First operand 8473 states. Second operand 6 states. [2020-04-18 19:20:30,263 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 19:20:30,264 INFO L93 Difference]: Finished difference Result 13147 states and 45961 transitions. [2020-04-18 19:20:30,264 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-04-18 19:20:30,266 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 37 [2020-04-18 19:20:30,267 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-04-18 19:20:30,323 INFO L225 Difference]: With dead ends: 13147 [2020-04-18 19:20:30,323 INFO L226 Difference]: Without dead ends: 4652 [2020-04-18 19:20:30,325 INFO L678 BasicCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2020-04-18 19:20:30,382 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4652 states. [2020-04-18 19:20:30,580 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4652 to 4652. [2020-04-18 19:20:30,581 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4652 states. [2020-04-18 19:20:30,609 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4652 states to 4652 states and 15991 transitions. [2020-04-18 19:20:30,611 INFO L78 Accepts]: Start accepts. Automaton has 4652 states and 15991 transitions. Word has length 37 [2020-04-18 19:20:30,612 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-04-18 19:20:30,613 INFO L479 AbstractCegarLoop]: Abstraction has 4652 states and 15991 transitions. [2020-04-18 19:20:30,616 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-04-18 19:20:30,617 INFO L276 IsEmpty]: Start isEmpty. Operand 4652 states and 15991 transitions. [2020-04-18 19:20:30,632 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2020-04-18 19:20:30,632 INFO L417 BasicCegarLoop]: Found error trace [2020-04-18 19:20:30,640 INFO L425 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-04-18 19:20:30,640 INFO L427 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-04-18 19:20:30,640 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 19:20:30,641 INFO L82 PathProgramCache]: Analyzing trace with hash 240380524, now seen corresponding path program 1 times [2020-04-18 19:20:30,641 INFO L163 FreeRefinementEngine]: Executing refinement strategy MCR [2020-04-18 19:20:30,641 INFO L354 FreeRefinementEngine]: Using trace check StrategyModuleMcr [1235408497] [2020-04-18 19:20:30,643 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 19:20:30,645 INFO L259 McrAutomatonBuilder]: Finished intersection with 80 states and 119 transitions. [2020-04-18 19:20:30,648 INFO L276 IsEmpty]: Start isEmpty. Operand 80 states. [2020-04-18 19:20:30,649 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2020-04-18 19:20:30,649 INFO L105 Mcr]: ---- MCR iteration 0 ---- [2020-04-18 19:20:30,649 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 19:20:30,650 INFO L82 PathProgramCache]: Analyzing trace with hash 240380524, now seen corresponding path program 2 times [2020-04-18 19:20:30,650 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-18 19:20:30,650 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [878514281] [2020-04-18 19:20:30,651 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-18 19:20:30,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-18 19:20:30,955 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-04-18 19:20:30,956 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [878514281] [2020-04-18 19:20:30,957 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-18 19:20:30,957 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-04-18 19:20:30,957 INFO L201 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-04-18 19:20:30,961 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 19:20:30,971 INFO L259 McrAutomatonBuilder]: Finished intersection with 68 states and 95 transitions. [2020-04-18 19:20:30,972 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-04-18 19:20:31,028 INFO L356 McrAutomatonBuilder]: Construction finished. Needed to calculate wp 0 times. [2020-04-18 19:20:31,028 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-04-18 19:20:31,029 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2020-04-18 19:20:31,029 INFO L87 Difference]: Start difference. First operand 80 states. Second operand 7 states. [2020-04-18 19:20:31,110 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 19:20:31,111 INFO L93 Difference]: Finished difference Result 80 states and 119 transitions. [2020-04-18 19:20:31,111 INFO L276 IsEmpty]: Start isEmpty. Operand 80 states and 119 transitions. [2020-04-18 19:20:31,112 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-04-18 19:20:31,112 INFO L354 FreeRefinementEngine]: Using interpolant generator StrategyModuleMcr [1235408497] [2020-04-18 19:20:31,113 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-04-18 19:20:31,113 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-04-18 19:20:31,113 INFO L156 tionRefinementEngine]: Using interpolant automaton builder StrategyModuleMcr [1235408497] [2020-04-18 19:20:31,114 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-04-18 19:20:31,114 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy MCR [2020-04-18 19:20:31,115 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-04-18 19:20:31,116 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90 [2020-04-18 19:20:31,116 INFO L87 Difference]: Start difference. First operand 4652 states and 15991 transitions. Second operand 7 states. [2020-04-18 19:20:31,334 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 19:20:31,334 INFO L93 Difference]: Finished difference Result 5372 states and 18242 transitions. [2020-04-18 19:20:31,335 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-04-18 19:20:31,335 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 39 [2020-04-18 19:20:31,335 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-04-18 19:20:31,370 INFO L225 Difference]: With dead ends: 5372 [2020-04-18 19:20:31,371 INFO L226 Difference]: Without dead ends: 4112 [2020-04-18 19:20:31,372 INFO L678 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 36 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=46, Invalid=86, Unknown=0, NotChecked=0, Total=132 [2020-04-18 19:20:31,397 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4112 states. [2020-04-18 19:20:31,496 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4112 to 4112. [2020-04-18 19:20:31,497 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4112 states. [2020-04-18 19:20:31,632 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4112 states to 4112 states and 13999 transitions. [2020-04-18 19:20:31,633 INFO L78 Accepts]: Start accepts. Automaton has 4112 states and 13999 transitions. Word has length 39 [2020-04-18 19:20:31,633 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-04-18 19:20:31,633 INFO L479 AbstractCegarLoop]: Abstraction has 4112 states and 13999 transitions. [2020-04-18 19:20:31,634 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-04-18 19:20:31,634 INFO L276 IsEmpty]: Start isEmpty. Operand 4112 states and 13999 transitions. [2020-04-18 19:20:31,642 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2020-04-18 19:20:31,642 INFO L417 BasicCegarLoop]: Found error trace [2020-04-18 19:20:31,642 INFO L425 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-04-18 19:20:31,642 INFO L427 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-04-18 19:20:31,643 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 19:20:31,643 INFO L82 PathProgramCache]: Analyzing trace with hash -1426036756, now seen corresponding path program 1 times [2020-04-18 19:20:31,643 INFO L163 FreeRefinementEngine]: Executing refinement strategy MCR [2020-04-18 19:20:31,644 INFO L354 FreeRefinementEngine]: Using trace check StrategyModuleMcr [1558807535] [2020-04-18 19:20:31,645 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 19:20:31,648 INFO L259 McrAutomatonBuilder]: Finished intersection with 72 states and 103 transitions. [2020-04-18 19:20:31,649 INFO L276 IsEmpty]: Start isEmpty. Operand 72 states. [2020-04-18 19:20:31,649 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2020-04-18 19:20:31,649 INFO L105 Mcr]: ---- MCR iteration 0 ---- [2020-04-18 19:20:31,650 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 19:20:31,650 INFO L82 PathProgramCache]: Analyzing trace with hash -1426036756, now seen corresponding path program 2 times [2020-04-18 19:20:31,650 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-18 19:20:31,651 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [537743828] [2020-04-18 19:20:31,651 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-18 19:20:31,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-18 19:20:31,819 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-04-18 19:20:31,819 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [537743828] [2020-04-18 19:20:31,820 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-18 19:20:31,820 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-04-18 19:20:31,822 INFO L201 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-04-18 19:20:31,826 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 19:20:31,837 INFO L259 McrAutomatonBuilder]: Finished intersection with 60 states and 79 transitions. [2020-04-18 19:20:31,837 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-04-18 19:20:31,892 INFO L356 McrAutomatonBuilder]: Construction finished. Needed to calculate wp 0 times. [2020-04-18 19:20:31,892 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-04-18 19:20:31,892 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2020-04-18 19:20:31,893 INFO L87 Difference]: Start difference. First operand 72 states. Second operand 7 states. [2020-04-18 19:20:32,026 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 19:20:32,026 INFO L93 Difference]: Finished difference Result 72 states and 103 transitions. [2020-04-18 19:20:32,027 INFO L276 IsEmpty]: Start isEmpty. Operand 72 states and 103 transitions. [2020-04-18 19:20:32,027 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-04-18 19:20:32,027 INFO L354 FreeRefinementEngine]: Using interpolant generator StrategyModuleMcr [1558807535] [2020-04-18 19:20:32,028 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-04-18 19:20:32,028 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-04-18 19:20:32,028 INFO L156 tionRefinementEngine]: Using interpolant automaton builder StrategyModuleMcr [1558807535] [2020-04-18 19:20:32,028 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-04-18 19:20:32,028 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy MCR [2020-04-18 19:20:32,029 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-04-18 19:20:32,029 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110 [2020-04-18 19:20:32,029 INFO L87 Difference]: Start difference. First operand 4112 states and 13999 transitions. Second operand 7 states. [2020-04-18 19:20:32,353 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 19:20:32,354 INFO L93 Difference]: Finished difference Result 7547 states and 25432 transitions. [2020-04-18 19:20:32,354 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2020-04-18 19:20:32,354 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 39 [2020-04-18 19:20:32,354 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-04-18 19:20:32,413 INFO L225 Difference]: With dead ends: 7547 [2020-04-18 19:20:32,413 INFO L226 Difference]: Without dead ends: 4792 [2020-04-18 19:20:32,414 INFO L678 BasicCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 37 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 60 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=106, Invalid=236, Unknown=0, NotChecked=0, Total=342 [2020-04-18 19:20:32,439 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4792 states. [2020-04-18 19:20:32,564 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4792 to 4792. [2020-04-18 19:20:32,564 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4792 states. [2020-04-18 19:20:32,586 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4792 states to 4792 states and 16188 transitions. [2020-04-18 19:20:32,587 INFO L78 Accepts]: Start accepts. Automaton has 4792 states and 16188 transitions. Word has length 39 [2020-04-18 19:20:32,587 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-04-18 19:20:32,587 INFO L479 AbstractCegarLoop]: Abstraction has 4792 states and 16188 transitions. [2020-04-18 19:20:32,587 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-04-18 19:20:32,588 INFO L276 IsEmpty]: Start isEmpty. Operand 4792 states and 16188 transitions. [2020-04-18 19:20:32,705 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2020-04-18 19:20:32,705 INFO L417 BasicCegarLoop]: Found error trace [2020-04-18 19:20:32,705 INFO L425 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-04-18 19:20:32,706 INFO L427 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-04-18 19:20:32,706 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 19:20:32,706 INFO L82 PathProgramCache]: Analyzing trace with hash 773486317, now seen corresponding path program 1 times [2020-04-18 19:20:32,706 INFO L163 FreeRefinementEngine]: Executing refinement strategy MCR [2020-04-18 19:20:32,707 INFO L354 FreeRefinementEngine]: Using trace check StrategyModuleMcr [529676861] [2020-04-18 19:20:32,710 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 19:20:32,716 INFO L259 McrAutomatonBuilder]: Finished intersection with 182 states and 385 transitions. [2020-04-18 19:20:32,718 INFO L276 IsEmpty]: Start isEmpty. Operand 182 states. [2020-04-18 19:20:32,718 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2020-04-18 19:20:32,719 INFO L105 Mcr]: ---- MCR iteration 0 ---- [2020-04-18 19:20:32,719 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 19:20:32,719 INFO L82 PathProgramCache]: Analyzing trace with hash -1162539155, now seen corresponding path program 2 times [2020-04-18 19:20:32,719 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-18 19:20:32,720 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1722780540] [2020-04-18 19:20:32,720 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-18 19:20:32,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-18 19:20:32,862 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-04-18 19:20:32,863 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1722780540] [2020-04-18 19:20:32,864 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-18 19:20:32,864 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-04-18 19:20:32,864 INFO L201 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-04-18 19:20:32,868 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 19:20:32,883 INFO L259 McrAutomatonBuilder]: Finished intersection with 134 states and 265 transitions. [2020-04-18 19:20:32,883 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-04-18 19:20:32,971 INFO L356 McrAutomatonBuilder]: Construction finished. Needed to calculate wp 2 times. [2020-04-18 19:20:32,971 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-04-18 19:20:32,972 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2020-04-18 19:20:32,972 INFO L87 Difference]: Start difference. First operand 182 states. Second operand 8 states. [2020-04-18 19:20:33,210 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 19:20:33,210 INFO L93 Difference]: Finished difference Result 182 states and 385 transitions. [2020-04-18 19:20:33,210 INFO L276 IsEmpty]: Start isEmpty. Operand 182 states and 385 transitions. [2020-04-18 19:20:33,211 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-04-18 19:20:33,211 INFO L354 FreeRefinementEngine]: Using interpolant generator StrategyModuleMcr [529676861] [2020-04-18 19:20:33,212 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-04-18 19:20:33,212 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-04-18 19:20:33,212 INFO L156 tionRefinementEngine]: Using interpolant automaton builder StrategyModuleMcr [529676861] [2020-04-18 19:20:33,212 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-04-18 19:20:33,212 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy MCR [2020-04-18 19:20:33,213 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-04-18 19:20:33,214 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=53, Invalid=103, Unknown=0, NotChecked=0, Total=156 [2020-04-18 19:20:33,214 INFO L87 Difference]: Start difference. First operand 4792 states and 16188 transitions. Second operand 8 states. [2020-04-18 19:20:33,800 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 19:20:33,801 INFO L93 Difference]: Finished difference Result 8547 states and 28502 transitions. [2020-04-18 19:20:33,801 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2020-04-18 19:20:33,801 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 41 [2020-04-18 19:20:33,803 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-04-18 19:20:33,826 INFO L225 Difference]: With dead ends: 8547 [2020-04-18 19:20:33,826 INFO L226 Difference]: Without dead ends: 5092 [2020-04-18 19:20:33,827 INFO L678 BasicCegarLoop]: 0 DeclaredPredicates, 68 GetRequests, 42 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 171 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=212, Invalid=544, Unknown=0, NotChecked=0, Total=756 [2020-04-18 19:20:34,258 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5092 states. [2020-04-18 19:20:34,371 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5092 to 4642. [2020-04-18 19:20:34,371 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4642 states. [2020-04-18 19:20:34,391 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4642 states to 4642 states and 15557 transitions. [2020-04-18 19:20:34,391 INFO L78 Accepts]: Start accepts. Automaton has 4642 states and 15557 transitions. Word has length 41 [2020-04-18 19:20:34,392 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-04-18 19:20:34,392 INFO L479 AbstractCegarLoop]: Abstraction has 4642 states and 15557 transitions. [2020-04-18 19:20:34,392 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-04-18 19:20:34,392 INFO L276 IsEmpty]: Start isEmpty. Operand 4642 states and 15557 transitions. [2020-04-18 19:20:34,403 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2020-04-18 19:20:34,404 INFO L417 BasicCegarLoop]: Found error trace [2020-04-18 19:20:34,404 INFO L425 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-04-18 19:20:34,404 INFO L427 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-04-18 19:20:34,404 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 19:20:34,404 INFO L82 PathProgramCache]: Analyzing trace with hash -1514673235, now seen corresponding path program 1 times [2020-04-18 19:20:34,405 INFO L163 FreeRefinementEngine]: Executing refinement strategy MCR [2020-04-18 19:20:34,406 INFO L354 FreeRefinementEngine]: Using trace check StrategyModuleMcr [1571667908] [2020-04-18 19:20:34,407 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 19:20:34,410 INFO L259 McrAutomatonBuilder]: Finished intersection with 150 states and 305 transitions. [2020-04-18 19:20:34,411 INFO L276 IsEmpty]: Start isEmpty. Operand 150 states. [2020-04-18 19:20:34,412 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2020-04-18 19:20:34,412 INFO L105 Mcr]: ---- MCR iteration 0 ---- [2020-04-18 19:20:34,412 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 19:20:34,412 INFO L82 PathProgramCache]: Analyzing trace with hash -1514673235, now seen corresponding path program 2 times [2020-04-18 19:20:34,413 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-18 19:20:34,413 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [663723554] [2020-04-18 19:20:34,414 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-18 19:20:34,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-18 19:20:34,584 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-04-18 19:20:34,584 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [663723554] [2020-04-18 19:20:34,584 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-18 19:20:34,585 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-04-18 19:20:34,585 INFO L201 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-04-18 19:20:34,589 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 19:20:34,600 INFO L259 McrAutomatonBuilder]: Finished intersection with 102 states and 185 transitions. [2020-04-18 19:20:34,600 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-04-18 19:20:34,667 INFO L356 McrAutomatonBuilder]: Construction finished. Needed to calculate wp 2 times. [2020-04-18 19:20:34,667 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-04-18 19:20:34,667 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2020-04-18 19:20:34,668 INFO L87 Difference]: Start difference. First operand 150 states. Second operand 9 states. [2020-04-18 19:20:34,798 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 19:20:34,799 INFO L93 Difference]: Finished difference Result 150 states and 305 transitions. [2020-04-18 19:20:34,799 INFO L276 IsEmpty]: Start isEmpty. Operand 150 states and 305 transitions. [2020-04-18 19:20:34,800 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-04-18 19:20:34,800 INFO L354 FreeRefinementEngine]: Using interpolant generator StrategyModuleMcr [1571667908] [2020-04-18 19:20:34,800 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-04-18 19:20:34,800 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-04-18 19:20:34,801 INFO L156 tionRefinementEngine]: Using interpolant automaton builder StrategyModuleMcr [1571667908] [2020-04-18 19:20:34,801 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-04-18 19:20:34,801 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy MCR [2020-04-18 19:20:34,801 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-04-18 19:20:34,802 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=71, Invalid=139, Unknown=0, NotChecked=0, Total=210 [2020-04-18 19:20:34,802 INFO L87 Difference]: Start difference. First operand 4642 states and 15557 transitions. Second operand 9 states. [2020-04-18 19:20:34,940 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 19:20:34,940 INFO L93 Difference]: Finished difference Result 5592 states and 18602 transitions. [2020-04-18 19:20:34,941 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-04-18 19:20:34,941 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 41 [2020-04-18 19:20:34,941 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-04-18 19:20:34,952 INFO L225 Difference]: With dead ends: 5592 [2020-04-18 19:20:34,952 INFO L226 Difference]: Without dead ends: 2687 [2020-04-18 19:20:34,953 INFO L678 BasicCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 41 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=98, Invalid=208, Unknown=0, NotChecked=0, Total=306 [2020-04-18 19:20:34,967 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2687 states. [2020-04-18 19:20:35,037 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2687 to 2687. [2020-04-18 19:20:35,038 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2687 states. [2020-04-18 19:20:35,052 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2687 states to 2687 states and 8785 transitions. [2020-04-18 19:20:35,052 INFO L78 Accepts]: Start accepts. Automaton has 2687 states and 8785 transitions. Word has length 41 [2020-04-18 19:20:35,052 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-04-18 19:20:35,053 INFO L479 AbstractCegarLoop]: Abstraction has 2687 states and 8785 transitions. [2020-04-18 19:20:35,053 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-04-18 19:20:35,053 INFO L276 IsEmpty]: Start isEmpty. Operand 2687 states and 8785 transitions. [2020-04-18 19:20:35,059 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2020-04-18 19:20:35,059 INFO L417 BasicCegarLoop]: Found error trace [2020-04-18 19:20:35,059 INFO L425 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-04-18 19:20:35,059 INFO L427 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-04-18 19:20:35,060 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 19:20:35,060 INFO L82 PathProgramCache]: Analyzing trace with hash 419818727, now seen corresponding path program 1 times [2020-04-18 19:20:35,060 INFO L163 FreeRefinementEngine]: Executing refinement strategy MCR [2020-04-18 19:20:35,060 INFO L354 FreeRefinementEngine]: Using trace check StrategyModuleMcr [1943110743] [2020-04-18 19:20:35,061 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 19:20:35,067 INFO L259 McrAutomatonBuilder]: Finished intersection with 237 states and 526 transitions. [2020-04-18 19:20:35,069 INFO L276 IsEmpty]: Start isEmpty. Operand 237 states. [2020-04-18 19:20:35,070 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2020-04-18 19:20:35,070 INFO L105 Mcr]: ---- MCR iteration 0 ---- [2020-04-18 19:20:35,070 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 19:20:35,070 INFO L82 PathProgramCache]: Analyzing trace with hash 419818727, now seen corresponding path program 2 times [2020-04-18 19:20:35,071 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-18 19:20:35,077 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [749077646] [2020-04-18 19:20:35,077 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-18 19:20:35,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-18 19:20:35,246 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-04-18 19:20:35,248 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [749077646] [2020-04-18 19:20:35,248 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-18 19:20:35,248 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-04-18 19:20:35,249 INFO L201 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-04-18 19:20:35,254 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 19:20:35,270 INFO L259 McrAutomatonBuilder]: Finished intersection with 138 states and 262 transitions. [2020-04-18 19:20:35,270 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-04-18 19:20:35,374 INFO L356 McrAutomatonBuilder]: Construction finished. Needed to calculate wp 0 times. [2020-04-18 19:20:35,374 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-04-18 19:20:35,376 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2020-04-18 19:20:35,376 INFO L87 Difference]: Start difference. First operand 237 states. Second operand 8 states. [2020-04-18 19:20:35,453 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 19:20:35,454 INFO L93 Difference]: Finished difference Result 237 states and 526 transitions. [2020-04-18 19:20:35,454 INFO L276 IsEmpty]: Start isEmpty. Operand 237 states and 526 transitions. [2020-04-18 19:20:35,455 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-04-18 19:20:35,455 INFO L354 FreeRefinementEngine]: Using interpolant generator StrategyModuleMcr [1943110743] [2020-04-18 19:20:35,455 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-04-18 19:20:35,456 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-04-18 19:20:35,456 INFO L156 tionRefinementEngine]: Using interpolant automaton builder StrategyModuleMcr [1943110743] [2020-04-18 19:20:35,456 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-04-18 19:20:35,456 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy MCR [2020-04-18 19:20:35,456 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-04-18 19:20:35,457 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=86, Unknown=0, NotChecked=0, Total=132 [2020-04-18 19:20:35,457 INFO L87 Difference]: Start difference. First operand 2687 states and 8785 transitions. Second operand 8 states. [2020-04-18 19:20:35,562 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 19:20:35,562 INFO L93 Difference]: Finished difference Result 3727 states and 12109 transitions. [2020-04-18 19:20:35,563 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-04-18 19:20:35,563 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 42 [2020-04-18 19:20:35,565 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-04-18 19:20:35,571 INFO L225 Difference]: With dead ends: 3727 [2020-04-18 19:20:35,571 INFO L226 Difference]: Without dead ends: 1557 [2020-04-18 19:20:35,572 INFO L678 BasicCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 39 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=73, Invalid=137, Unknown=0, NotChecked=0, Total=210 [2020-04-18 19:20:35,578 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1557 states. [2020-04-18 19:20:35,611 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1557 to 1557. [2020-04-18 19:20:35,611 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1557 states. [2020-04-18 19:20:35,616 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1557 states to 1557 states and 4927 transitions. [2020-04-18 19:20:35,617 INFO L78 Accepts]: Start accepts. Automaton has 1557 states and 4927 transitions. Word has length 42 [2020-04-18 19:20:35,617 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-04-18 19:20:35,617 INFO L479 AbstractCegarLoop]: Abstraction has 1557 states and 4927 transitions. [2020-04-18 19:20:35,617 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-04-18 19:20:35,617 INFO L276 IsEmpty]: Start isEmpty. Operand 1557 states and 4927 transitions. [2020-04-18 19:20:35,622 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2020-04-18 19:20:35,623 INFO L417 BasicCegarLoop]: Found error trace [2020-04-18 19:20:35,623 INFO L425 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-04-18 19:20:35,623 INFO L427 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-04-18 19:20:35,624 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 19:20:35,624 INFO L82 PathProgramCache]: Analyzing trace with hash -493734196, now seen corresponding path program 1 times [2020-04-18 19:20:35,624 INFO L163 FreeRefinementEngine]: Executing refinement strategy MCR [2020-04-18 19:20:35,624 INFO L354 FreeRefinementEngine]: Using trace check StrategyModuleMcr [231906295] [2020-04-18 19:20:35,627 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 19:20:35,643 INFO L259 McrAutomatonBuilder]: Finished intersection with 705 states and 2089 transitions. [2020-04-18 19:20:35,649 INFO L276 IsEmpty]: Start isEmpty. Operand 705 states. [2020-04-18 19:20:35,652 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2020-04-18 19:20:35,652 INFO L105 Mcr]: ---- MCR iteration 0 ---- [2020-04-18 19:20:35,652 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 19:20:35,652 INFO L82 PathProgramCache]: Analyzing trace with hash 15671900, now seen corresponding path program 2 times [2020-04-18 19:20:35,653 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-18 19:20:35,653 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [738111662] [2020-04-18 19:20:35,653 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-18 19:20:35,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-18 19:20:35,833 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-04-18 19:20:35,833 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [738111662] [2020-04-18 19:20:35,833 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-18 19:20:35,834 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-04-18 19:20:35,834 INFO L201 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-04-18 19:20:35,838 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 19:20:35,886 INFO L259 McrAutomatonBuilder]: Finished intersection with 305 states and 762 transitions. [2020-04-18 19:20:35,887 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-04-18 19:20:35,988 INFO L356 McrAutomatonBuilder]: Construction finished. Needed to calculate wp 11 times. [2020-04-18 19:20:35,989 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-04-18 19:20:35,989 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=85, Unknown=0, NotChecked=0, Total=110 [2020-04-18 19:20:35,989 INFO L87 Difference]: Start difference. First operand 705 states. Second operand 11 states. [2020-04-18 19:20:36,269 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 19:20:36,269 INFO L93 Difference]: Finished difference Result 807 states and 2304 transitions. [2020-04-18 19:20:36,269 INFO L276 IsEmpty]: Start isEmpty. Operand 807 states and 2304 transitions. [2020-04-18 19:20:36,272 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2020-04-18 19:20:36,273 INFO L105 Mcr]: ---- MCR iteration 1 ---- [2020-04-18 19:20:36,273 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 19:20:36,273 INFO L82 PathProgramCache]: Analyzing trace with hash -1787096026, now seen corresponding path program 3 times [2020-04-18 19:20:36,273 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-18 19:20:36,274 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [656269159] [2020-04-18 19:20:36,274 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-18 19:20:36,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-18 19:20:36,395 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-04-18 19:20:36,396 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [656269159] [2020-04-18 19:20:36,396 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-18 19:20:36,396 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-04-18 19:20:36,397 INFO L201 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-04-18 19:20:36,401 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 19:20:36,542 INFO L259 McrAutomatonBuilder]: Finished intersection with 257 states and 631 transitions. [2020-04-18 19:20:36,542 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-04-18 19:20:36,579 INFO L356 McrAutomatonBuilder]: Construction finished. Needed to calculate wp 11 times. [2020-04-18 19:20:36,579 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-04-18 19:20:36,579 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=135, Invalid=371, Unknown=0, NotChecked=0, Total=506 [2020-04-18 19:20:36,580 INFO L87 Difference]: Start difference. First operand 807 states and 2304 transitions. Second operand 9 states. [2020-04-18 19:20:36,844 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 19:20:36,844 INFO L93 Difference]: Finished difference Result 900 states and 2443 transitions. [2020-04-18 19:20:36,844 INFO L276 IsEmpty]: Start isEmpty. Operand 900 states and 2443 transitions. [2020-04-18 19:20:36,849 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2020-04-18 19:20:36,849 INFO L105 Mcr]: ---- MCR iteration 2 ---- [2020-04-18 19:20:36,850 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 19:20:36,850 INFO L82 PathProgramCache]: Analyzing trace with hash -715179570, now seen corresponding path program 4 times [2020-04-18 19:20:36,850 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-18 19:20:36,850 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2016043862] [2020-04-18 19:20:36,851 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-18 19:20:36,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-18 19:20:36,955 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-04-18 19:20:36,955 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2016043862] [2020-04-18 19:20:36,955 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-18 19:20:36,956 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-04-18 19:20:36,956 INFO L201 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-04-18 19:20:36,960 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 19:20:36,988 INFO L259 McrAutomatonBuilder]: Finished intersection with 194 states and 438 transitions. [2020-04-18 19:20:36,989 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-04-18 19:20:37,031 INFO L356 McrAutomatonBuilder]: Construction finished. Needed to calculate wp 2 times. [2020-04-18 19:20:37,031 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-04-18 19:20:37,032 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=241, Invalid=881, Unknown=0, NotChecked=0, Total=1122 [2020-04-18 19:20:37,033 INFO L87 Difference]: Start difference. First operand 900 states and 2443 transitions. Second operand 7 states. [2020-04-18 19:20:37,118 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 19:20:37,118 INFO L93 Difference]: Finished difference Result 900 states and 2443 transitions. [2020-04-18 19:20:37,119 INFO L276 IsEmpty]: Start isEmpty. Operand 900 states and 2443 transitions. [2020-04-18 19:20:37,121 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-04-18 19:20:37,122 INFO L354 FreeRefinementEngine]: Using interpolant generator StrategyModuleMcr [231906295] [2020-04-18 19:20:37,122 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-04-18 19:20:37,123 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-04-18 19:20:37,123 INFO L156 tionRefinementEngine]: Using interpolant automaton builder StrategyModuleMcr [231906295] [2020-04-18 19:20:37,123 INFO L459 AbstractCegarLoop]: Interpolant automaton has 15 states [2020-04-18 19:20:37,123 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy MCR [2020-04-18 19:20:37,123 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2020-04-18 19:20:37,124 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=292, Invalid=1114, Unknown=0, NotChecked=0, Total=1406 [2020-04-18 19:20:37,124 INFO L87 Difference]: Start difference. First operand 1557 states and 4927 transitions. Second operand 15 states. [2020-04-18 19:20:37,333 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 19:20:37,334 INFO L93 Difference]: Finished difference Result 1397 states and 4399 transitions. [2020-04-18 19:20:37,334 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2020-04-18 19:20:37,334 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 45 [2020-04-18 19:20:37,335 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-04-18 19:20:37,335 INFO L225 Difference]: With dead ends: 1397 [2020-04-18 19:20:37,335 INFO L226 Difference]: Without dead ends: 0 [2020-04-18 19:20:37,336 INFO L678 BasicCegarLoop]: 0 DeclaredPredicates, 196 GetRequests, 150 SyntacticMatches, 0 SemanticMatches, 46 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 573 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=444, Invalid=1812, Unknown=0, NotChecked=0, Total=2256 [2020-04-18 19:20:37,337 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-04-18 19:20:37,338 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-04-18 19:20:37,338 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-04-18 19:20:37,338 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-04-18 19:20:37,338 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 45 [2020-04-18 19:20:37,338 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-04-18 19:20:37,339 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-04-18 19:20:37,339 INFO L480 AbstractCegarLoop]: Interpolant automaton has 15 states. [2020-04-18 19:20:37,339 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-04-18 19:20:37,339 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-04-18 19:20:37,345 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 18.04 07:20:37 BasicIcfg [2020-04-18 19:20:37,345 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-04-18 19:20:37,353 INFO L168 Benchmark]: Toolchain (without parser) took 10251.02 ms. Allocated memory was 145.2 MB in the beginning and 544.2 MB in the end (delta: 399.0 MB). Free memory was 100.4 MB in the beginning and 283.2 MB in the end (delta: -182.9 MB). Peak memory consumption was 216.1 MB. Max. memory is 7.1 GB. [2020-04-18 19:20:37,354 INFO L168 Benchmark]: CDTParser took 0.18 ms. Allocated memory is still 145.2 MB. Free memory was 120.3 MB in the beginning and 120.1 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2020-04-18 19:20:37,354 INFO L168 Benchmark]: CACSL2BoogieTranslator took 673.80 ms. Allocated memory was 145.2 MB in the beginning and 203.4 MB in the end (delta: 58.2 MB). Free memory was 98.5 MB in the beginning and 160.0 MB in the end (delta: -61.5 MB). Peak memory consumption was 20.4 MB. Max. memory is 7.1 GB. [2020-04-18 19:20:37,355 INFO L168 Benchmark]: Boogie Procedure Inliner took 49.80 ms. Allocated memory is still 203.4 MB. Free memory was 160.0 MB in the beginning and 158.0 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 7.1 GB. [2020-04-18 19:20:37,360 INFO L168 Benchmark]: Boogie Preprocessor took 23.99 ms. Allocated memory is still 203.4 MB. Free memory was 158.0 MB in the beginning and 156.6 MB in the end (delta: 1.4 MB). Peak memory consumption was 1.4 MB. Max. memory is 7.1 GB. [2020-04-18 19:20:37,362 INFO L168 Benchmark]: RCFGBuilder took 459.19 ms. Allocated memory is still 203.4 MB. Free memory was 156.6 MB in the beginning and 134.0 MB in the end (delta: 22.6 MB). Peak memory consumption was 22.6 MB. Max. memory is 7.1 GB. [2020-04-18 19:20:37,363 INFO L168 Benchmark]: TraceAbstraction took 9018.66 ms. Allocated memory was 203.4 MB in the beginning and 544.2 MB in the end (delta: 340.8 MB). Free memory was 133.4 MB in the beginning and 283.2 MB in the end (delta: -149.9 MB). Peak memory consumption was 190.9 MB. Max. memory is 7.1 GB. [2020-04-18 19:20:37,371 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18 ms. Allocated memory is still 145.2 MB. Free memory was 120.3 MB in the beginning and 120.1 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 673.80 ms. Allocated memory was 145.2 MB in the beginning and 203.4 MB in the end (delta: 58.2 MB). Free memory was 98.5 MB in the beginning and 160.0 MB in the end (delta: -61.5 MB). Peak memory consumption was 20.4 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 49.80 ms. Allocated memory is still 203.4 MB. Free memory was 160.0 MB in the beginning and 158.0 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 23.99 ms. Allocated memory is still 203.4 MB. Free memory was 158.0 MB in the beginning and 156.6 MB in the end (delta: 1.4 MB). Peak memory consumption was 1.4 MB. Max. memory is 7.1 GB. * RCFGBuilder took 459.19 ms. Allocated memory is still 203.4 MB. Free memory was 156.6 MB in the beginning and 134.0 MB in the end (delta: 22.6 MB). Peak memory consumption was 22.6 MB. Max. memory is 7.1 GB. * TraceAbstraction took 9018.66 ms. Allocated memory was 203.4 MB in the beginning and 544.2 MB in the end (delta: 340.8 MB). Free memory was 133.4 MB in the beginning and 283.2 MB in the end (delta: -149.9 MB). Peak memory consumption was 190.9 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 7]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 70 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 8.8s, OverallIterations: 7, TraceHistogramMax: 1, AutomataDifference: 2.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.6s, HoareTripleCheckerStatistics: 711 SDtfs, 1348 SDslu, 2747 SDs, 0 SdLazy, 267 SolverSat, 35 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.3s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 517 GetRequests, 380 SyntacticMatches, 0 SemanticMatches, 137 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 864 ImplicationChecksByTransitivity, 2.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=8473occurred 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: 1.4s AutomataMinimizationTime, 7 MinimizatonAttempts, 450 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: No data available, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...