/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-MCR.epf -i ../../../trunk/examples/svcomp/pthread-wmm/safe027_pso.oepc.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-4336eb1 [2019-12-28 05:14:01,769 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-12-28 05:14:01,772 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-12-28 05:14:01,791 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-12-28 05:14:01,791 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-12-28 05:14:01,793 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-12-28 05:14:01,795 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-12-28 05:14:01,805 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-12-28 05:14:01,809 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-12-28 05:14:01,812 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-12-28 05:14:01,814 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-12-28 05:14:01,815 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-12-28 05:14:01,816 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-12-28 05:14:01,818 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-12-28 05:14:01,820 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-12-28 05:14:01,823 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-12-28 05:14:01,824 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-12-28 05:14:01,825 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-12-28 05:14:01,826 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-12-28 05:14:01,831 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-12-28 05:14:01,835 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-12-28 05:14:01,840 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-12-28 05:14:01,841 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-12-28 05:14:01,842 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-12-28 05:14:01,844 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-12-28 05:14:01,844 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-12-28 05:14:01,844 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-12-28 05:14:01,846 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-12-28 05:14:01,847 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-12-28 05:14:01,848 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-12-28 05:14:01,848 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-12-28 05:14:01,850 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-12-28 05:14:01,851 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-12-28 05:14:01,852 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-12-28 05:14:01,854 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-12-28 05:14:01,854 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-12-28 05:14:01,855 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-12-28 05:14:01,855 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-12-28 05:14:01,855 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-12-28 05:14:01,856 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-12-28 05:14:01,857 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-12-28 05:14:01,858 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-MCR.epf [2019-12-28 05:14:01,879 INFO L113 SettingsManager]: Loading preferences was successful [2019-12-28 05:14:01,880 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-12-28 05:14:01,885 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-12-28 05:14:01,885 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-12-28 05:14:01,885 INFO L138 SettingsManager]: * Use SBE=true [2019-12-28 05:14:01,885 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-12-28 05:14:01,886 INFO L138 SettingsManager]: * sizeof long=4 [2019-12-28 05:14:01,887 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-12-28 05:14:01,887 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-12-28 05:14:01,887 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-12-28 05:14:01,887 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-12-28 05:14:01,888 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-12-28 05:14:01,888 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-12-28 05:14:01,888 INFO L138 SettingsManager]: * sizeof long double=12 [2019-12-28 05:14:01,888 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-12-28 05:14:01,888 INFO L138 SettingsManager]: * Use constant arrays=true [2019-12-28 05:14:01,888 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-12-28 05:14:01,890 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-12-28 05:14:01,890 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-12-28 05:14:01,890 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-12-28 05:14:01,892 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-12-28 05:14:01,892 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-12-28 05:14:01,892 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-12-28 05:14:01,893 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-12-28 05:14:01,893 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-12-28 05:14:01,893 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-12-28 05:14:01,893 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-12-28 05:14:01,893 INFO L138 SettingsManager]: * Override the interpolant automaton setting of the refinement strategy=true [2019-12-28 05:14:01,893 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2019-12-28 05:14:01,897 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-12-28 05:14:01,897 INFO L138 SettingsManager]: * Interpolant automaton=MCR [2019-12-28 05:14:01,897 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-12-28 05:14:02,176 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-12-28 05:14:02,189 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-12-28 05:14:02,192 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-12-28 05:14:02,194 INFO L271 PluginConnector]: Initializing CDTParser... [2019-12-28 05:14:02,194 INFO L275 PluginConnector]: CDTParser initialized [2019-12-28 05:14:02,195 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe027_pso.oepc.i [2019-12-28 05:14:02,254 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6f0f19f6d/9d9dcc6259894ebaa0388fedee270dbd/FLAGdb7ffb855 [2019-12-28 05:14:02,846 INFO L306 CDTParser]: Found 1 translation units. [2019-12-28 05:14:02,846 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe027_pso.oepc.i [2019-12-28 05:14:02,861 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6f0f19f6d/9d9dcc6259894ebaa0388fedee270dbd/FLAGdb7ffb855 [2019-12-28 05:14:03,122 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6f0f19f6d/9d9dcc6259894ebaa0388fedee270dbd [2019-12-28 05:14:03,131 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-12-28 05:14:03,132 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2019-12-28 05:14:03,133 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-12-28 05:14:03,133 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-12-28 05:14:03,137 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-12-28 05:14:03,138 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.12 05:14:03" (1/1) ... [2019-12-28 05:14:03,141 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@51159066 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 05:14:03, skipping insertion in model container [2019-12-28 05:14:03,141 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.12 05:14:03" (1/1) ... [2019-12-28 05:14:03,147 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-12-28 05:14:03,189 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-12-28 05:14:03,676 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-28 05:14:03,692 INFO L203 MainTranslator]: Completed pre-run [2019-12-28 05:14:03,747 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-28 05:14:03,841 INFO L208 MainTranslator]: Completed translation [2019-12-28 05:14:03,841 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 05:14:03 WrapperNode [2019-12-28 05:14:03,841 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-12-28 05:14:03,842 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-12-28 05:14:03,842 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-12-28 05:14:03,844 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-12-28 05:14:03,851 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 05:14:03" (1/1) ... [2019-12-28 05:14:03,867 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 05:14:03" (1/1) ... [2019-12-28 05:14:03,891 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-12-28 05:14:03,892 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-12-28 05:14:03,892 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-12-28 05:14:03,892 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-12-28 05:14:03,901 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 05:14:03" (1/1) ... [2019-12-28 05:14:03,902 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 05:14:03" (1/1) ... [2019-12-28 05:14:03,905 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 05:14:03" (1/1) ... [2019-12-28 05:14:03,905 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 05:14:03" (1/1) ... [2019-12-28 05:14:03,918 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 05:14:03" (1/1) ... [2019-12-28 05:14:03,920 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 05:14:03" (1/1) ... [2019-12-28 05:14:03,922 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 05:14:03" (1/1) ... [2019-12-28 05:14:03,926 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-12-28 05:14:03,926 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-12-28 05:14:03,927 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-12-28 05:14:03,927 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-12-28 05:14:03,928 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 05:14:03" (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 [2019-12-28 05:14:03,987 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-12-28 05:14:03,987 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2019-12-28 05:14:03,987 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-12-28 05:14:03,987 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-12-28 05:14:03,988 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2019-12-28 05:14:03,988 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2019-12-28 05:14:03,988 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2019-12-28 05:14:03,988 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2019-12-28 05:14:03,988 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2019-12-28 05:14:03,988 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2019-12-28 05:14:03,989 INFO L130 BoogieDeclarations]: Found specification of procedure P3 [2019-12-28 05:14:03,989 INFO L138 BoogieDeclarations]: Found implementation of procedure P3 [2019-12-28 05:14:03,989 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2019-12-28 05:14:03,989 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-12-28 05:14:03,989 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-12-28 05:14:03,991 WARN L205 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2019-12-28 05:14:04,414 INFO L282 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-12-28 05:14:04,415 INFO L287 CfgBuilder]: Removed 6 assume(true) statements. [2019-12-28 05:14:04,416 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.12 05:14:04 BoogieIcfgContainer [2019-12-28 05:14:04,417 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-12-28 05:14:04,418 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-12-28 05:14:04,418 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-12-28 05:14:04,422 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-12-28 05:14:04,422 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.12 05:14:03" (1/3) ... [2019-12-28 05:14:04,423 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@73dedab8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.12 05:14:04, skipping insertion in model container [2019-12-28 05:14:04,423 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 05:14:03" (2/3) ... [2019-12-28 05:14:04,424 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@73dedab8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.12 05:14:04, skipping insertion in model container [2019-12-28 05:14:04,424 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.12 05:14:04" (3/3) ... [2019-12-28 05:14:04,426 INFO L109 eAbstractionObserver]: Analyzing ICFG safe027_pso.oepc.i [2019-12-28 05:14:04,437 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2019-12-28 05:14:04,437 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-12-28 05:14:04,445 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-12-28 05:14:04,446 INFO L340 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2019-12-28 05:14:04,477 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:14:04,478 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:14:04,478 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:14:04,478 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:14:04,479 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:14:04,479 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:14:04,480 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:14:04,480 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:14:04,480 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:14:04,480 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:14:04,481 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:14:04,481 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:14:04,481 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:14:04,482 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:14:04,482 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:14:04,482 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:14:04,482 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:14:04,483 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:14:04,483 WARN L315 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:14:04,483 WARN L315 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:14:04,484 WARN L315 ript$VariableManager]: TermVariabe P3Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:14:04,484 WARN L315 ript$VariableManager]: TermVariabe P3Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:14:04,484 WARN L315 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:14:04,485 WARN L315 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:14:04,489 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:14:04,490 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:14:04,490 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:14:04,490 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:14:04,495 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:14:04,496 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:14:04,496 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:14:04,496 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:14:04,499 WARN L315 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:14:04,500 WARN L315 ript$VariableManager]: TermVariabe P3Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:14:04,500 WARN L315 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:14:04,500 WARN L315 ript$VariableManager]: TermVariabe P3Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:14:04,504 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:14:04,505 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:14:04,505 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:14:04,505 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:14:04,521 INFO L249 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2019-12-28 05:14:04,543 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-12-28 05:14:04,543 INFO L374 AbstractCegarLoop]: Hoare is true [2019-12-28 05:14:04,543 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-12-28 05:14:04,543 INFO L376 AbstractCegarLoop]: Backedges is MCR [2019-12-28 05:14:04,544 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-12-28 05:14:04,544 INFO L378 AbstractCegarLoop]: Difference is false [2019-12-28 05:14:04,544 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-12-28 05:14:04,544 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-12-28 05:14:04,556 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 77 places, 65 transitions [2019-12-28 05:14:04,864 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 5473 states. [2019-12-28 05:14:04,867 INFO L276 IsEmpty]: Start isEmpty. Operand 5473 states. [2019-12-28 05:14:04,890 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2019-12-28 05:14:04,890 INFO L403 BasicCegarLoop]: Found error trace [2019-12-28 05:14:04,891 INFO L411 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] [2019-12-28 05:14:04,892 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-28 05:14:04,898 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-28 05:14:04,898 INFO L82 PathProgramCache]: Analyzing trace with hash 433648018, now seen corresponding path program 1 times [2019-12-28 05:14:04,910 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-28 05:14:04,911 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1034087067] [2019-12-28 05:14:04,911 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-28 05:14:05,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-28 05:14:05,272 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-28 05:14:05,273 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1034087067] [2019-12-28 05:14:05,274 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-28 05:14:05,274 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-12-28 05:14:05,275 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [10028301] [2019-12-28 05:14:05,276 INFO L132 pAbStrategyModuleMcr]: Constructing automaton for MCR equivalence class. [2019-12-28 05:14:05,285 INFO L197 pAbStrategyModuleMcr]: Started intersection. [2019-12-28 05:14:05,309 INFO L208 pAbStrategyModuleMcr]: Finished intersection with 37 states and 36 transitions. [2019-12-28 05:14:05,309 INFO L219 pAbStrategyModuleMcr]: Constructing interpolant automaton by labelling MCR automaton. [2019-12-28 05:14:05,314 INFO L288 pAbStrategyModuleMcr]: Construction finished. Needed to calculate wp 0 times. [2019-12-28 05:14:05,314 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-12-28 05:14:05,315 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-28 05:14:05,329 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-12-28 05:14:05,330 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-12-28 05:14:05,332 INFO L87 Difference]: Start difference. First operand 5473 states. Second operand 4 states. [2019-12-28 05:14:05,486 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-28 05:14:05,486 INFO L93 Difference]: Finished difference Result 5710 states and 21935 transitions. [2019-12-28 05:14:05,488 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-12-28 05:14:05,490 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 36 [2019-12-28 05:14:05,491 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-28 05:14:05,551 INFO L225 Difference]: With dead ends: 5710 [2019-12-28 05:14:05,551 INFO L226 Difference]: Without dead ends: 2394 [2019-12-28 05:14:05,555 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2019-12-28 05:14:05,611 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2394 states. [2019-12-28 05:14:05,793 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2394 to 2394. [2019-12-28 05:14:05,795 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2394 states. [2019-12-28 05:14:05,818 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2394 states to 2394 states and 8938 transitions. [2019-12-28 05:14:05,820 INFO L78 Accepts]: Start accepts. Automaton has 2394 states and 8938 transitions. Word has length 36 [2019-12-28 05:14:05,821 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-28 05:14:05,821 INFO L462 AbstractCegarLoop]: Abstraction has 2394 states and 8938 transitions. [2019-12-28 05:14:05,822 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-12-28 05:14:05,822 INFO L276 IsEmpty]: Start isEmpty. Operand 2394 states and 8938 transitions. [2019-12-28 05:14:05,829 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2019-12-28 05:14:05,829 INFO L403 BasicCegarLoop]: Found error trace [2019-12-28 05:14:05,830 INFO L411 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] [2019-12-28 05:14:05,831 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-28 05:14:05,834 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-28 05:14:05,918 INFO L82 PathProgramCache]: Analyzing trace with hash -895431090, now seen corresponding path program 1 times [2019-12-28 05:14:05,920 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-28 05:14:05,920 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [26555094] [2019-12-28 05:14:05,921 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-28 05:14:05,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-28 05:14:06,151 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-28 05:14:06,152 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [26555094] [2019-12-28 05:14:06,152 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-28 05:14:06,153 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-12-28 05:14:06,154 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [618447099] [2019-12-28 05:14:06,154 INFO L132 pAbStrategyModuleMcr]: Constructing automaton for MCR equivalence class. [2019-12-28 05:14:06,160 INFO L197 pAbStrategyModuleMcr]: Started intersection. [2019-12-28 05:14:06,167 INFO L208 pAbStrategyModuleMcr]: Finished intersection with 50 states and 61 transitions. [2019-12-28 05:14:06,168 INFO L219 pAbStrategyModuleMcr]: Constructing interpolant automaton by labelling MCR automaton. [2019-12-28 05:14:06,170 INFO L288 pAbStrategyModuleMcr]: Construction finished. Needed to calculate wp 0 times. [2019-12-28 05:14:06,172 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-12-28 05:14:06,173 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-28 05:14:06,173 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-12-28 05:14:06,173 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2019-12-28 05:14:06,174 INFO L87 Difference]: Start difference. First operand 2394 states and 8938 transitions. Second operand 5 states. [2019-12-28 05:14:06,309 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-28 05:14:06,309 INFO L93 Difference]: Finished difference Result 2565 states and 9322 transitions. [2019-12-28 05:14:06,310 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-12-28 05:14:06,310 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 37 [2019-12-28 05:14:06,310 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-28 05:14:06,330 INFO L225 Difference]: With dead ends: 2565 [2019-12-28 05:14:06,331 INFO L226 Difference]: Without dead ends: 2310 [2019-12-28 05:14:06,332 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2019-12-28 05:14:06,349 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2310 states. [2019-12-28 05:14:06,421 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2310 to 2310. [2019-12-28 05:14:06,421 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2310 states. [2019-12-28 05:14:06,439 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2310 states to 2310 states and 8546 transitions. [2019-12-28 05:14:06,439 INFO L78 Accepts]: Start accepts. Automaton has 2310 states and 8546 transitions. Word has length 37 [2019-12-28 05:14:06,440 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-28 05:14:06,441 INFO L462 AbstractCegarLoop]: Abstraction has 2310 states and 8546 transitions. [2019-12-28 05:14:06,441 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-12-28 05:14:06,441 INFO L276 IsEmpty]: Start isEmpty. Operand 2310 states and 8546 transitions. [2019-12-28 05:14:06,447 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2019-12-28 05:14:06,448 INFO L403 BasicCegarLoop]: Found error trace [2019-12-28 05:14:06,448 INFO L411 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] [2019-12-28 05:14:06,448 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-28 05:14:06,449 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-28 05:14:06,449 INFO L82 PathProgramCache]: Analyzing trace with hash 1455477097, now seen corresponding path program 1 times [2019-12-28 05:14:06,449 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-28 05:14:06,450 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [732339384] [2019-12-28 05:14:06,450 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-28 05:14:06,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-28 05:14:06,623 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-28 05:14:06,623 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [732339384] [2019-12-28 05:14:06,623 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-28 05:14:06,624 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-12-28 05:14:06,624 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1625041178] [2019-12-28 05:14:06,624 INFO L132 pAbStrategyModuleMcr]: Constructing automaton for MCR equivalence class. [2019-12-28 05:14:06,630 INFO L197 pAbStrategyModuleMcr]: Started intersection. [2019-12-28 05:14:06,648 INFO L208 pAbStrategyModuleMcr]: Finished intersection with 59 states and 78 transitions. [2019-12-28 05:14:06,648 INFO L219 pAbStrategyModuleMcr]: Constructing interpolant automaton by labelling MCR automaton. [2019-12-28 05:14:06,649 INFO L288 pAbStrategyModuleMcr]: Construction finished. Needed to calculate wp 0 times. [2019-12-28 05:14:06,649 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-12-28 05:14:06,649 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-28 05:14:06,649 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-12-28 05:14:06,650 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2019-12-28 05:14:06,650 INFO L87 Difference]: Start difference. First operand 2310 states and 8546 transitions. Second operand 6 states. [2019-12-28 05:14:06,791 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-28 05:14:06,792 INFO L93 Difference]: Finished difference Result 2175 states and 7682 transitions. [2019-12-28 05:14:06,792 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-12-28 05:14:06,792 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 38 [2019-12-28 05:14:06,793 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-28 05:14:06,857 INFO L225 Difference]: With dead ends: 2175 [2019-12-28 05:14:06,857 INFO L226 Difference]: Without dead ends: 1932 [2019-12-28 05:14:06,858 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2019-12-28 05:14:06,872 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1932 states. [2019-12-28 05:14:06,923 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1932 to 1932. [2019-12-28 05:14:06,924 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1932 states. [2019-12-28 05:14:06,936 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1932 states to 1932 states and 6908 transitions. [2019-12-28 05:14:06,937 INFO L78 Accepts]: Start accepts. Automaton has 1932 states and 6908 transitions. Word has length 38 [2019-12-28 05:14:06,937 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-28 05:14:06,937 INFO L462 AbstractCegarLoop]: Abstraction has 1932 states and 6908 transitions. [2019-12-28 05:14:06,937 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-12-28 05:14:06,937 INFO L276 IsEmpty]: Start isEmpty. Operand 1932 states and 6908 transitions. [2019-12-28 05:14:06,942 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2019-12-28 05:14:06,942 INFO L403 BasicCegarLoop]: Found error trace [2019-12-28 05:14:06,943 INFO L411 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] [2019-12-28 05:14:06,943 INFO L410 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-28 05:14:06,943 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-28 05:14:06,943 INFO L82 PathProgramCache]: Analyzing trace with hash -1169485641, now seen corresponding path program 1 times [2019-12-28 05:14:06,944 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-28 05:14:06,944 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1499912084] [2019-12-28 05:14:06,945 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-28 05:14:06,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-28 05:14:07,047 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-28 05:14:07,049 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1499912084] [2019-12-28 05:14:07,049 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-28 05:14:07,049 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-12-28 05:14:07,049 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1747911239] [2019-12-28 05:14:07,050 INFO L132 pAbStrategyModuleMcr]: Constructing automaton for MCR equivalence class. [2019-12-28 05:14:07,056 INFO L197 pAbStrategyModuleMcr]: Started intersection. [2019-12-28 05:14:07,066 INFO L208 pAbStrategyModuleMcr]: Finished intersection with 64 states and 87 transitions. [2019-12-28 05:14:07,067 INFO L219 pAbStrategyModuleMcr]: Constructing interpolant automaton by labelling MCR automaton. [2019-12-28 05:14:07,067 INFO L288 pAbStrategyModuleMcr]: Construction finished. Needed to calculate wp 0 times. [2019-12-28 05:14:07,068 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-12-28 05:14:07,068 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-28 05:14:07,068 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-12-28 05:14:07,068 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2019-12-28 05:14:07,068 INFO L87 Difference]: Start difference. First operand 1932 states and 6908 transitions. Second operand 7 states. [2019-12-28 05:14:07,192 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-28 05:14:07,192 INFO L93 Difference]: Finished difference Result 1365 states and 4532 transitions. [2019-12-28 05:14:07,193 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-12-28 05:14:07,193 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 39 [2019-12-28 05:14:07,194 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-28 05:14:07,203 INFO L225 Difference]: With dead ends: 1365 [2019-12-28 05:14:07,203 INFO L226 Difference]: Without dead ends: 1176 [2019-12-28 05:14:07,204 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=45, Invalid=65, Unknown=0, NotChecked=0, Total=110 [2019-12-28 05:14:07,210 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1176 states. [2019-12-28 05:14:07,239 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1176 to 1176. [2019-12-28 05:14:07,239 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1176 states. [2019-12-28 05:14:07,245 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1176 states to 1176 states and 3884 transitions. [2019-12-28 05:14:07,246 INFO L78 Accepts]: Start accepts. Automaton has 1176 states and 3884 transitions. Word has length 39 [2019-12-28 05:14:07,246 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-28 05:14:07,246 INFO L462 AbstractCegarLoop]: Abstraction has 1176 states and 3884 transitions. [2019-12-28 05:14:07,246 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-12-28 05:14:07,247 INFO L276 IsEmpty]: Start isEmpty. Operand 1176 states and 3884 transitions. [2019-12-28 05:14:07,249 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2019-12-28 05:14:07,249 INFO L403 BasicCegarLoop]: Found error trace [2019-12-28 05:14:07,251 INFO L411 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] [2019-12-28 05:14:07,251 INFO L410 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-28 05:14:07,252 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-28 05:14:07,257 INFO L82 PathProgramCache]: Analyzing trace with hash -985222538, now seen corresponding path program 1 times [2019-12-28 05:14:07,257 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-28 05:14:07,258 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1004486028] [2019-12-28 05:14:07,258 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-28 05:14:07,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-28 05:14:07,462 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-28 05:14:07,463 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1004486028] [2019-12-28 05:14:07,464 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-28 05:14:07,464 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2019-12-28 05:14:07,464 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [519289666] [2019-12-28 05:14:07,464 INFO L132 pAbStrategyModuleMcr]: Constructing automaton for MCR equivalence class. [2019-12-28 05:14:07,504 INFO L197 pAbStrategyModuleMcr]: Started intersection. [2019-12-28 05:14:07,518 INFO L208 pAbStrategyModuleMcr]: Finished intersection with 65 states and 88 transitions. [2019-12-28 05:14:07,518 INFO L219 pAbStrategyModuleMcr]: Constructing interpolant automaton by labelling MCR automaton. [2019-12-28 05:14:07,520 INFO L288 pAbStrategyModuleMcr]: Construction finished. Needed to calculate wp 0 times. [2019-12-28 05:14:07,521 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-12-28 05:14:07,521 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-28 05:14:07,521 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-12-28 05:14:07,521 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2019-12-28 05:14:07,522 INFO L87 Difference]: Start difference. First operand 1176 states and 3884 transitions. Second operand 8 states. [2019-12-28 05:14:07,671 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-28 05:14:07,672 INFO L93 Difference]: Finished difference Result 1725 states and 5777 transitions. [2019-12-28 05:14:07,672 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-12-28 05:14:07,672 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 40 [2019-12-28 05:14:07,673 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-28 05:14:07,681 INFO L225 Difference]: With dead ends: 1725 [2019-12-28 05:14:07,681 INFO L226 Difference]: Without dead ends: 876 [2019-12-28 05:14:07,682 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2019-12-28 05:14:07,687 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 876 states. [2019-12-28 05:14:07,718 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 876 to 876. [2019-12-28 05:14:07,719 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 876 states. [2019-12-28 05:14:07,728 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 876 states to 876 states and 2888 transitions. [2019-12-28 05:14:07,729 INFO L78 Accepts]: Start accepts. Automaton has 876 states and 2888 transitions. Word has length 40 [2019-12-28 05:14:07,729 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-28 05:14:07,729 INFO L462 AbstractCegarLoop]: Abstraction has 876 states and 2888 transitions. [2019-12-28 05:14:07,730 INFO L463 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-12-28 05:14:07,730 INFO L276 IsEmpty]: Start isEmpty. Operand 876 states and 2888 transitions. [2019-12-28 05:14:07,732 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2019-12-28 05:14:07,732 INFO L403 BasicCegarLoop]: Found error trace [2019-12-28 05:14:07,732 INFO L411 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] [2019-12-28 05:14:07,732 INFO L410 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-28 05:14:07,733 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-28 05:14:07,733 INFO L82 PathProgramCache]: Analyzing trace with hash 1459721732, now seen corresponding path program 2 times [2019-12-28 05:14:07,733 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-28 05:14:07,735 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [714675582] [2019-12-28 05:14:07,735 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-28 05:14:07,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-28 05:14:07,901 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-28 05:14:07,902 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [714675582] [2019-12-28 05:14:07,902 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-28 05:14:07,902 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-12-28 05:14:07,903 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1911675631] [2019-12-28 05:14:07,903 INFO L132 pAbStrategyModuleMcr]: Constructing automaton for MCR equivalence class. [2019-12-28 05:14:07,908 INFO L197 pAbStrategyModuleMcr]: Started intersection. [2019-12-28 05:14:07,917 INFO L208 pAbStrategyModuleMcr]: Finished intersection with 53 states and 64 transitions. [2019-12-28 05:14:07,917 INFO L219 pAbStrategyModuleMcr]: Constructing interpolant automaton by labelling MCR automaton. [2019-12-28 05:14:07,918 INFO L288 pAbStrategyModuleMcr]: Construction finished. Needed to calculate wp 0 times. [2019-12-28 05:14:07,918 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-12-28 05:14:07,918 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-28 05:14:07,919 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-12-28 05:14:07,919 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2019-12-28 05:14:07,919 INFO L87 Difference]: Start difference. First operand 876 states and 2888 transitions. Second operand 7 states. [2019-12-28 05:14:08,041 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-28 05:14:08,041 INFO L93 Difference]: Finished difference Result 1389 states and 4670 transitions. [2019-12-28 05:14:08,041 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-12-28 05:14:08,042 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 40 [2019-12-28 05:14:08,042 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-28 05:14:08,048 INFO L225 Difference]: With dead ends: 1389 [2019-12-28 05:14:08,048 INFO L226 Difference]: Without dead ends: 768 [2019-12-28 05:14:08,049 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110 [2019-12-28 05:14:08,054 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 768 states. [2019-12-28 05:14:08,070 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 768 to 768. [2019-12-28 05:14:08,071 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 768 states. [2019-12-28 05:14:08,077 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 768 states to 768 states and 2576 transitions. [2019-12-28 05:14:08,077 INFO L78 Accepts]: Start accepts. Automaton has 768 states and 2576 transitions. Word has length 40 [2019-12-28 05:14:08,078 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-28 05:14:08,078 INFO L462 AbstractCegarLoop]: Abstraction has 768 states and 2576 transitions. [2019-12-28 05:14:08,078 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-12-28 05:14:08,078 INFO L276 IsEmpty]: Start isEmpty. Operand 768 states and 2576 transitions. [2019-12-28 05:14:08,080 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2019-12-28 05:14:08,080 INFO L403 BasicCegarLoop]: Found error trace [2019-12-28 05:14:08,080 INFO L411 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] [2019-12-28 05:14:08,081 INFO L410 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-28 05:14:08,081 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-28 05:14:08,081 INFO L82 PathProgramCache]: Analyzing trace with hash -353081860, now seen corresponding path program 3 times [2019-12-28 05:14:08,082 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-28 05:14:08,082 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [846607441] [2019-12-28 05:14:08,082 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-28 05:14:08,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-28 05:14:08,190 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-28 05:14:08,191 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [846607441] [2019-12-28 05:14:08,191 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-28 05:14:08,192 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-12-28 05:14:08,192 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [475531387] [2019-12-28 05:14:08,192 INFO L132 pAbStrategyModuleMcr]: Constructing automaton for MCR equivalence class. [2019-12-28 05:14:08,200 INFO L197 pAbStrategyModuleMcr]: Started intersection. [2019-12-28 05:14:08,209 INFO L208 pAbStrategyModuleMcr]: Finished intersection with 45 states and 48 transitions. [2019-12-28 05:14:08,210 INFO L219 pAbStrategyModuleMcr]: Constructing interpolant automaton by labelling MCR automaton. [2019-12-28 05:14:08,211 INFO L288 pAbStrategyModuleMcr]: Construction finished. Needed to calculate wp 0 times. [2019-12-28 05:14:08,211 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-12-28 05:14:08,212 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-28 05:14:08,212 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-12-28 05:14:08,213 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2019-12-28 05:14:08,213 INFO L87 Difference]: Start difference. First operand 768 states and 2576 transitions. Second operand 7 states. [2019-12-28 05:14:08,320 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-28 05:14:08,320 INFO L93 Difference]: Finished difference Result 1254 states and 4277 transitions. [2019-12-28 05:14:08,320 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-12-28 05:14:08,321 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 40 [2019-12-28 05:14:08,321 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-28 05:14:08,326 INFO L225 Difference]: With dead ends: 1254 [2019-12-28 05:14:08,327 INFO L226 Difference]: Without dead ends: 717 [2019-12-28 05:14:08,327 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=33, Invalid=77, Unknown=0, NotChecked=0, Total=110 [2019-12-28 05:14:08,331 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 717 states. [2019-12-28 05:14:08,346 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 717 to 717. [2019-12-28 05:14:08,347 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 717 states. [2019-12-28 05:14:08,350 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 717 states to 717 states and 2432 transitions. [2019-12-28 05:14:08,350 INFO L78 Accepts]: Start accepts. Automaton has 717 states and 2432 transitions. Word has length 40 [2019-12-28 05:14:08,351 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-28 05:14:08,351 INFO L462 AbstractCegarLoop]: Abstraction has 717 states and 2432 transitions. [2019-12-28 05:14:08,351 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-12-28 05:14:08,351 INFO L276 IsEmpty]: Start isEmpty. Operand 717 states and 2432 transitions. [2019-12-28 05:14:08,353 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2019-12-28 05:14:08,353 INFO L403 BasicCegarLoop]: Found error trace [2019-12-28 05:14:08,353 INFO L411 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] [2019-12-28 05:14:08,354 INFO L410 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-28 05:14:08,354 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-28 05:14:08,354 INFO L82 PathProgramCache]: Analyzing trace with hash 1457383704, now seen corresponding path program 4 times [2019-12-28 05:14:08,355 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-28 05:14:08,355 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [717477157] [2019-12-28 05:14:08,356 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-28 05:14:08,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-28 05:14:08,535 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-28 05:14:08,537 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [717477157] [2019-12-28 05:14:08,538 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-28 05:14:08,538 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-12-28 05:14:08,539 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [523231842] [2019-12-28 05:14:08,539 INFO L132 pAbStrategyModuleMcr]: Constructing automaton for MCR equivalence class. [2019-12-28 05:14:08,576 INFO L197 pAbStrategyModuleMcr]: Started intersection. [2019-12-28 05:14:08,584 INFO L208 pAbStrategyModuleMcr]: Finished intersection with 41 states and 40 transitions. [2019-12-28 05:14:08,584 INFO L219 pAbStrategyModuleMcr]: Constructing interpolant automaton by labelling MCR automaton. [2019-12-28 05:14:08,585 INFO L288 pAbStrategyModuleMcr]: Construction finished. Needed to calculate wp 0 times. [2019-12-28 05:14:08,585 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-12-28 05:14:08,585 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-28 05:14:08,586 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-12-28 05:14:08,586 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2019-12-28 05:14:08,586 INFO L87 Difference]: Start difference. First operand 717 states and 2432 transitions. Second operand 7 states. [2019-12-28 05:14:08,751 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-28 05:14:08,752 INFO L93 Difference]: Finished difference Result 555 states and 1838 transitions. [2019-12-28 05:14:08,752 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-12-28 05:14:08,752 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 40 [2019-12-28 05:14:08,752 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-28 05:14:08,752 INFO L225 Difference]: With dead ends: 555 [2019-12-28 05:14:08,753 INFO L226 Difference]: Without dead ends: 0 [2019-12-28 05:14:08,754 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110 [2019-12-28 05:14:08,754 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-12-28 05:14:08,754 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-12-28 05:14:08,755 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-12-28 05:14:08,755 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-12-28 05:14:08,755 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 40 [2019-12-28 05:14:08,755 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-28 05:14:08,755 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-12-28 05:14:08,756 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-12-28 05:14:08,756 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-12-28 05:14:08,756 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-12-28 05:14:08,773 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.12 05:14:08 BasicIcfg [2019-12-28 05:14:08,773 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-12-28 05:14:08,778 INFO L168 Benchmark]: Toolchain (without parser) took 5643.81 ms. Allocated memory was 139.5 MB in the beginning and 313.5 MB in the end (delta: 174.1 MB). Free memory was 102.9 MB in the beginning and 232.9 MB in the end (delta: -130.0 MB). Peak memory consumption was 44.1 MB. Max. memory is 7.1 GB. [2019-12-28 05:14:08,779 INFO L168 Benchmark]: CDTParser took 0.19 ms. Allocated memory is still 139.5 MB. Free memory was 122.6 MB in the beginning and 122.4 MB in the end (delta: 209.9 kB). Peak memory consumption was 209.9 kB. Max. memory is 7.1 GB. [2019-12-28 05:14:08,781 INFO L168 Benchmark]: CACSL2BoogieTranslator took 708.49 ms. Allocated memory was 139.5 MB in the beginning and 204.5 MB in the end (delta: 65.0 MB). Free memory was 102.7 MB in the beginning and 161.3 MB in the end (delta: -58.6 MB). Peak memory consumption was 26.0 MB. Max. memory is 7.1 GB. [2019-12-28 05:14:08,782 INFO L168 Benchmark]: Boogie Procedure Inliner took 49.29 ms. Allocated memory is still 204.5 MB. Free memory was 161.3 MB in the beginning and 159.2 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 7.1 GB. [2019-12-28 05:14:08,783 INFO L168 Benchmark]: Boogie Preprocessor took 34.45 ms. Allocated memory is still 204.5 MB. Free memory was 159.2 MB in the beginning and 157.3 MB in the end (delta: 1.9 MB). Peak memory consumption was 1.9 MB. Max. memory is 7.1 GB. [2019-12-28 05:14:08,785 INFO L168 Benchmark]: RCFGBuilder took 490.26 ms. Allocated memory is still 204.5 MB. Free memory was 157.3 MB in the beginning and 135.5 MB in the end (delta: 21.8 MB). Peak memory consumption was 21.8 MB. Max. memory is 7.1 GB. [2019-12-28 05:14:08,785 INFO L168 Benchmark]: TraceAbstraction took 4355.62 ms. Allocated memory was 204.5 MB in the beginning and 313.5 MB in the end (delta: 109.1 MB). Free memory was 134.9 MB in the beginning and 232.9 MB in the end (delta: -98.0 MB). Peak memory consumption was 11.1 MB. Max. memory is 7.1 GB. [2019-12-28 05:14:08,795 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19 ms. Allocated memory is still 139.5 MB. Free memory was 122.6 MB in the beginning and 122.4 MB in the end (delta: 209.9 kB). Peak memory consumption was 209.9 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 708.49 ms. Allocated memory was 139.5 MB in the beginning and 204.5 MB in the end (delta: 65.0 MB). Free memory was 102.7 MB in the beginning and 161.3 MB in the end (delta: -58.6 MB). Peak memory consumption was 26.0 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 49.29 ms. Allocated memory is still 204.5 MB. Free memory was 161.3 MB in the beginning and 159.2 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 34.45 ms. Allocated memory is still 204.5 MB. Free memory was 159.2 MB in the beginning and 157.3 MB in the end (delta: 1.9 MB). Peak memory consumption was 1.9 MB. Max. memory is 7.1 GB. * RCFGBuilder took 490.26 ms. Allocated memory is still 204.5 MB. Free memory was 157.3 MB in the beginning and 135.5 MB in the end (delta: 21.8 MB). Peak memory consumption was 21.8 MB. Max. memory is 7.1 GB. * TraceAbstraction took 4355.62 ms. Allocated memory was 204.5 MB in the beginning and 313.5 MB in the end (delta: 109.1 MB). Free memory was 134.9 MB in the beginning and 232.9 MB in the end (delta: -98.0 MB). Peak memory consumption was 11.1 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 4]: 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 5 procedures, 65 locations, 1 error locations. Result: SAFE, OverallTime: 4.2s, OverallIterations: 8, TraceHistogramMax: 1, AutomataDifference: 1.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 479 SDtfs, 637 SDslu, 1362 SDs, 0 SdLazy, 193 SolverSat, 79 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 77 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 61 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 0.9s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=5473occurred 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: 0.5s AutomataMinimizationTime, 8 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 1.0s InterpolantComputationTime, 310 NumberOfCodeBlocks, 310 NumberOfCodeBlocksAsserted, 8 NumberOfCheckSat, 302 ConstructedInterpolants, 0 QuantifiedInterpolants, 35894 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 8 InterpolantComputations, 8 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...