/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -s ../../../trunk/examples/settings/automizer/mcr/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-McrAutomaton-WP.epf -i ../../../trunk/examples/svcomp/pthread-wmm/safe010_tso.oepc.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-b09bf87 [2020-10-16 13:37:32,724 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-16 13:37:32,727 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-16 13:37:32,749 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-16 13:37:32,750 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-16 13:37:32,751 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-16 13:37:32,752 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-16 13:37:32,754 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-16 13:37:32,755 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-16 13:37:32,756 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-16 13:37:32,757 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-16 13:37:32,758 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-16 13:37:32,758 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-16 13:37:32,759 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-16 13:37:32,760 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-16 13:37:32,761 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-16 13:37:32,762 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-16 13:37:32,763 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-16 13:37:32,765 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-16 13:37:32,766 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-16 13:37:32,768 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-16 13:37:32,768 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-16 13:37:32,770 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-16 13:37:32,773 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-16 13:37:32,776 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-16 13:37:32,776 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-16 13:37:32,776 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-16 13:37:32,777 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-16 13:37:32,777 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-16 13:37:32,782 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-16 13:37:32,782 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-16 13:37:32,783 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-16 13:37:32,784 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-16 13:37:32,785 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-16 13:37:32,787 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-16 13:37:32,787 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-16 13:37:32,788 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-16 13:37:32,788 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-16 13:37:32,788 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-16 13:37:32,795 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-16 13:37:32,796 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-16 13:37:32,797 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/mcr/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-McrAutomaton-WP.epf [2020-10-16 13:37:32,840 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-16 13:37:32,841 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-16 13:37:32,843 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-16 13:37:32,843 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-16 13:37:32,843 INFO L138 SettingsManager]: * Use SBE=true [2020-10-16 13:37:32,843 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-16 13:37:32,843 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-16 13:37:32,844 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-16 13:37:32,844 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-16 13:37:32,844 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-16 13:37:32,845 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-16 13:37:32,845 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-16 13:37:32,845 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-16 13:37:32,845 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-16 13:37:32,845 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-16 13:37:32,845 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-16 13:37:32,846 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-16 13:37:32,846 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-16 13:37:32,846 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-16 13:37:32,846 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-16 13:37:32,846 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-16 13:37:32,847 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-16 13:37:32,847 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-16 13:37:32,848 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=Craig_NestedInterpolation [2020-10-16 13:37:32,848 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-16 13:37:32,849 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-16 13:37:32,849 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-16 13:37:32,849 INFO L138 SettingsManager]: * Override the interpolant automaton setting of the refinement strategy=true [2020-10-16 13:37:32,849 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=VARIABLE_BASED_MOVER_CHECK [2020-10-16 13:37:32,849 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-16 13:37:32,849 INFO L138 SettingsManager]: * Interpolant automaton=MCR [2020-10-16 13:37:33,159 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-16 13:37:33,174 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-16 13:37:33,178 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-16 13:37:33,179 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-16 13:37:33,180 INFO L275 PluginConnector]: CDTParser initialized [2020-10-16 13:37:33,180 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe010_tso.oepc.i [2020-10-16 13:37:33,241 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/a0031107f/d336875a3f2548cf8d7249a48bbcf19d/FLAGa89c7f9c5 [2020-10-16 13:37:33,783 INFO L306 CDTParser]: Found 1 translation units. [2020-10-16 13:37:33,784 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/pthread-wmm/safe010_tso.oepc.i [2020-10-16 13:37:33,801 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/a0031107f/d336875a3f2548cf8d7249a48bbcf19d/FLAGa89c7f9c5 [2020-10-16 13:37:34,073 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/a0031107f/d336875a3f2548cf8d7249a48bbcf19d [2020-10-16 13:37:34,081 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-16 13:37:34,083 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2020-10-16 13:37:34,084 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-16 13:37:34,086 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-16 13:37:34,089 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-16 13:37:34,090 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.10 01:37:34" (1/1) ... [2020-10-16 13:37:34,093 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@22e9224f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 01:37:34, skipping insertion in model container [2020-10-16 13:37:34,094 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.10 01:37:34" (1/1) ... [2020-10-16 13:37:34,102 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-16 13:37:34,159 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-16 13:37:34,645 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-16 13:37:34,660 INFO L203 MainTranslator]: Completed pre-run [2020-10-16 13:37:34,743 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-16 13:37:34,817 INFO L208 MainTranslator]: Completed translation [2020-10-16 13:37:34,817 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 01:37:34 WrapperNode [2020-10-16 13:37:34,817 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-16 13:37:34,818 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-10-16 13:37:34,818 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-10-16 13:37:34,819 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-10-16 13:37:34,827 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 01:37:34" (1/1) ... [2020-10-16 13:37:34,843 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 01:37:34" (1/1) ... [2020-10-16 13:37:34,865 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-10-16 13:37:34,865 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-16 13:37:34,865 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-16 13:37:34,865 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-16 13:37:34,873 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 01:37:34" (1/1) ... [2020-10-16 13:37:34,873 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 01:37:34" (1/1) ... [2020-10-16 13:37:34,876 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 01:37:34" (1/1) ... [2020-10-16 13:37:34,877 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 01:37:34" (1/1) ... [2020-10-16 13:37:34,883 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 01:37:34" (1/1) ... [2020-10-16 13:37:34,885 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 01:37:34" (1/1) ... [2020-10-16 13:37:34,887 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 01:37:34" (1/1) ... [2020-10-16 13:37:34,890 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-16 13:37:34,890 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-16 13:37:34,891 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-16 13:37:34,891 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-16 13:37:34,892 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 01:37:34" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-16 13:37:34,965 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-16 13:37:34,965 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2020-10-16 13:37:34,965 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-16 13:37:34,965 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-16 13:37:34,966 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2020-10-16 13:37:34,966 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2020-10-16 13:37:34,966 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2020-10-16 13:37:34,966 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2020-10-16 13:37:34,966 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2020-10-16 13:37:34,966 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-16 13:37:34,967 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-16 13:37:34,968 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2020-10-16 13:37:35,248 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-16 13:37:35,248 INFO L298 CfgBuilder]: Removed 8 assume(true) statements. [2020-10-16 13:37:35,251 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 01:37:35 BoogieIcfgContainer [2020-10-16 13:37:35,252 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-16 13:37:35,254 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-16 13:37:35,254 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-16 13:37:35,262 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-16 13:37:35,263 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.10 01:37:34" (1/3) ... [2020-10-16 13:37:35,264 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@48089a2a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.10 01:37:35, skipping insertion in model container [2020-10-16 13:37:35,264 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 01:37:34" (2/3) ... [2020-10-16 13:37:35,265 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@48089a2a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.10 01:37:35, skipping insertion in model container [2020-10-16 13:37:35,265 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 01:37:35" (3/3) ... [2020-10-16 13:37:35,271 INFO L111 eAbstractionObserver]: Analyzing ICFG safe010_tso.oepc.i [2020-10-16 13:37:35,304 WARN L153 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2020-10-16 13:37:35,305 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-16 13:37:35,318 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-16 13:37:35,319 INFO L348 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2020-10-16 13:37:35,355 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 13:37:35,356 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 13:37:35,356 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 13:37:35,356 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 13:37:35,357 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 13:37:35,357 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 13:37:35,358 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 13:37:35,358 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 13:37:35,358 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 13:37:35,358 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 13:37:35,359 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 13:37:35,359 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 13:37:35,363 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 13:37:35,363 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 13:37:35,363 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 13:37:35,364 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 13:37:35,369 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 13:37:35,369 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 13:37:35,370 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 13:37:35,370 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 13:37:35,372 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2020-10-16 13:37:35,383 INFO L253 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2020-10-16 13:37:35,400 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-16 13:37:35,401 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-16 13:37:35,401 INFO L379 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-16 13:37:35,401 INFO L380 AbstractCegarLoop]: Backedges is MCR [2020-10-16 13:37:35,402 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-16 13:37:35,402 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-16 13:37:35,402 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-16 13:37:35,402 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-16 13:37:35,413 INFO L137 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2020-10-16 13:37:35,413 INFO L144 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 60 places, 55 transitions, 120 flow [2020-10-16 13:37:35,415 INFO L111 LiptonReduction]: Starting Lipton reduction on Petri net that has 60 places, 55 transitions, 120 flow [2020-10-16 13:37:35,417 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 60 places, 55 transitions, 120 flow [2020-10-16 13:37:35,456 INFO L129 PetriNetUnfolder]: 2/53 cut-off events. [2020-10-16 13:37:35,456 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2020-10-16 13:37:35,461 INFO L80 FinitePrefix]: Finished finitePrefix Result has 60 conditions, 53 events. 2/53 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 37 event pairs, 0 based on Foata normal form. 0/50 useless extension candidates. Maximal degree in co-relation 41. Up to 2 conditions per place. [2020-10-16 13:37:35,464 INFO L117 LiptonReduction]: Number of co-enabled transitions 672 [2020-10-16 13:37:36,604 INFO L132 LiptonReduction]: Checked pairs total: 1289 [2020-10-16 13:37:36,604 INFO L134 LiptonReduction]: Total number of compositions: 51 [2020-10-16 13:37:36,612 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 22 places, 15 transitions, 40 flow [2020-10-16 13:37:36,627 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 74 states. [2020-10-16 13:37:36,629 INFO L276 IsEmpty]: Start isEmpty. Operand 74 states. [2020-10-16 13:37:36,636 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2020-10-16 13:37:36,636 INFO L414 BasicCegarLoop]: Found error trace [2020-10-16 13:37:36,637 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2020-10-16 13:37:36,637 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 13:37:36,643 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 13:37:36,643 INFO L82 PathProgramCache]: Analyzing trace with hash 1814584925, now seen corresponding path program 1 times [2020-10-16 13:37:36,666 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 13:37:36,667 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1807096353] [2020-10-16 13:37:36,668 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 13:37:36,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 13:37:36,864 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-16 13:37:36,865 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1807096353] [2020-10-16 13:37:36,866 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 13:37:36,866 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2020-10-16 13:37:36,867 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [702431995] [2020-10-16 13:37:36,868 INFO L200 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-16 13:37:36,871 INFO L255 McrAutomatonBuilder]: Started intersection. [2020-10-16 13:37:36,884 INFO L258 McrAutomatonBuilder]: Finished intersection with 7 states and 6 transitions. [2020-10-16 13:37:36,885 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-16 13:37:36,888 INFO L313 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-10-16 13:37:36,889 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-16 13:37:36,890 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 13:37:36,904 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-16 13:37:36,905 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-16 13:37:36,907 INFO L87 Difference]: Start difference. First operand 74 states. Second operand 3 states. [2020-10-16 13:37:36,946 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-16 13:37:36,947 INFO L93 Difference]: Finished difference Result 72 states and 154 transitions. [2020-10-16 13:37:36,947 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-16 13:37:36,949 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 6 [2020-10-16 13:37:36,949 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-16 13:37:36,958 INFO L225 Difference]: With dead ends: 72 [2020-10-16 13:37:36,959 INFO L226 Difference]: Without dead ends: 56 [2020-10-16 13:37:36,960 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-16 13:37:36,979 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 56 states. [2020-10-16 13:37:36,997 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 56 to 56. [2020-10-16 13:37:36,998 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 56 states. [2020-10-16 13:37:37,000 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56 states to 56 states and 114 transitions. [2020-10-16 13:37:37,002 INFO L78 Accepts]: Start accepts. Automaton has 56 states and 114 transitions. Word has length 6 [2020-10-16 13:37:37,002 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-16 13:37:37,002 INFO L481 AbstractCegarLoop]: Abstraction has 56 states and 114 transitions. [2020-10-16 13:37:37,002 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-16 13:37:37,002 INFO L276 IsEmpty]: Start isEmpty. Operand 56 states and 114 transitions. [2020-10-16 13:37:37,003 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2020-10-16 13:37:37,003 INFO L414 BasicCegarLoop]: Found error trace [2020-10-16 13:37:37,003 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2020-10-16 13:37:37,004 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-16 13:37:37,004 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 13:37:37,004 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 13:37:37,005 INFO L82 PathProgramCache]: Analyzing trace with hash 417556795, now seen corresponding path program 1 times [2020-10-16 13:37:37,006 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 13:37:37,006 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [481623037] [2020-10-16 13:37:37,006 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 13:37:37,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 13:37:37,060 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-16 13:37:37,060 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [481623037] [2020-10-16 13:37:37,060 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 13:37:37,061 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2020-10-16 13:37:37,061 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [215712291] [2020-10-16 13:37:37,061 INFO L200 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-16 13:37:37,062 INFO L255 McrAutomatonBuilder]: Started intersection. [2020-10-16 13:37:37,065 INFO L258 McrAutomatonBuilder]: Finished intersection with 11 states and 13 transitions. [2020-10-16 13:37:37,065 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-16 13:37:37,098 INFO L313 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-10-16 13:37:37,100 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-16 13:37:37,100 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 13:37:37,100 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-16 13:37:37,101 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-16 13:37:37,101 INFO L87 Difference]: Start difference. First operand 56 states and 114 transitions. Second operand 3 states. [2020-10-16 13:37:37,107 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-16 13:37:37,108 INFO L93 Difference]: Finished difference Result 53 states and 106 transitions. [2020-10-16 13:37:37,108 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-16 13:37:37,108 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 7 [2020-10-16 13:37:37,108 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-16 13:37:37,109 INFO L225 Difference]: With dead ends: 53 [2020-10-16 13:37:37,110 INFO L226 Difference]: Without dead ends: 53 [2020-10-16 13:37:37,110 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-16 13:37:37,112 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 53 states. [2020-10-16 13:37:37,117 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 53 to 53. [2020-10-16 13:37:37,117 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 53 states. [2020-10-16 13:37:37,119 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53 states to 53 states and 106 transitions. [2020-10-16 13:37:37,119 INFO L78 Accepts]: Start accepts. Automaton has 53 states and 106 transitions. Word has length 7 [2020-10-16 13:37:37,119 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-16 13:37:37,119 INFO L481 AbstractCegarLoop]: Abstraction has 53 states and 106 transitions. [2020-10-16 13:37:37,119 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-16 13:37:37,120 INFO L276 IsEmpty]: Start isEmpty. Operand 53 states and 106 transitions. [2020-10-16 13:37:37,120 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2020-10-16 13:37:37,120 INFO L414 BasicCegarLoop]: Found error trace [2020-10-16 13:37:37,121 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 13:37:37,121 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-16 13:37:37,121 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 13:37:37,121 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 13:37:37,121 INFO L82 PathProgramCache]: Analyzing trace with hash 58787852, now seen corresponding path program 1 times [2020-10-16 13:37:37,123 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 13:37:37,123 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1567796219] [2020-10-16 13:37:37,123 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 13:37:37,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 13:37:37,211 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-16 13:37:37,213 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1567796219] [2020-10-16 13:37:37,213 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 13:37:37,213 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-16 13:37:37,213 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [834363570] [2020-10-16 13:37:37,213 INFO L200 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-16 13:37:37,214 INFO L255 McrAutomatonBuilder]: Started intersection. [2020-10-16 13:37:37,219 INFO L258 McrAutomatonBuilder]: Finished intersection with 15 states and 21 transitions. [2020-10-16 13:37:37,220 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-16 13:37:37,265 INFO L313 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-10-16 13:37:37,266 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-16 13:37:37,266 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 13:37:37,266 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-16 13:37:37,266 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-16 13:37:37,267 INFO L87 Difference]: Start difference. First operand 53 states and 106 transitions. Second operand 4 states. [2020-10-16 13:37:37,286 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-16 13:37:37,287 INFO L93 Difference]: Finished difference Result 60 states and 113 transitions. [2020-10-16 13:37:37,287 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-16 13:37:37,287 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 8 [2020-10-16 13:37:37,288 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-16 13:37:37,288 INFO L225 Difference]: With dead ends: 60 [2020-10-16 13:37:37,288 INFO L226 Difference]: Without dead ends: 36 [2020-10-16 13:37:37,289 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-16 13:37:37,290 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36 states. [2020-10-16 13:37:37,293 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36 to 36. [2020-10-16 13:37:37,293 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 36 states. [2020-10-16 13:37:37,294 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 63 transitions. [2020-10-16 13:37:37,294 INFO L78 Accepts]: Start accepts. Automaton has 36 states and 63 transitions. Word has length 8 [2020-10-16 13:37:37,294 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-16 13:37:37,294 INFO L481 AbstractCegarLoop]: Abstraction has 36 states and 63 transitions. [2020-10-16 13:37:37,294 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-16 13:37:37,295 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 63 transitions. [2020-10-16 13:37:37,295 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-10-16 13:37:37,295 INFO L414 BasicCegarLoop]: Found error trace [2020-10-16 13:37:37,295 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 13:37:37,296 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-16 13:37:37,296 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 13:37:37,296 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 13:37:37,296 INFO L82 PathProgramCache]: Analyzing trace with hash 1840071362, now seen corresponding path program 1 times [2020-10-16 13:37:37,297 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 13:37:37,298 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [291124860] [2020-10-16 13:37:37,298 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 13:37:37,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 13:37:37,376 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-16 13:37:37,377 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [291124860] [2020-10-16 13:37:37,377 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 13:37:37,377 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-16 13:37:37,378 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1242586545] [2020-10-16 13:37:37,378 INFO L200 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-16 13:37:37,379 INFO L255 McrAutomatonBuilder]: Started intersection. [2020-10-16 13:37:37,380 INFO L258 McrAutomatonBuilder]: Finished intersection with 17 states and 23 transitions. [2020-10-16 13:37:37,380 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-16 13:37:37,398 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-10-16 13:37:37,424 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-10-16 13:37:37,449 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-10-16 13:37:37,463 INFO L313 McrAutomatonBuilder]: Construction finished. MCR generated 1 new interpolants: [702#(not (= 2 ~__unbuffered_cnt~0))] [2020-10-16 13:37:37,463 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-16 13:37:37,464 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 13:37:37,464 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-16 13:37:37,464 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-16 13:37:37,464 INFO L87 Difference]: Start difference. First operand 36 states and 63 transitions. Second operand 5 states. [2020-10-16 13:37:37,505 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-16 13:37:37,506 INFO L93 Difference]: Finished difference Result 32 states and 51 transitions. [2020-10-16 13:37:37,506 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-16 13:37:37,506 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 9 [2020-10-16 13:37:37,507 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-16 13:37:37,507 INFO L225 Difference]: With dead ends: 32 [2020-10-16 13:37:37,507 INFO L226 Difference]: Without dead ends: 22 [2020-10-16 13:37:37,508 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-10-16 13:37:37,508 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22 states. [2020-10-16 13:37:37,510 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22 to 22. [2020-10-16 13:37:37,510 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 22 states. [2020-10-16 13:37:37,510 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 30 transitions. [2020-10-16 13:37:37,511 INFO L78 Accepts]: Start accepts. Automaton has 22 states and 30 transitions. Word has length 9 [2020-10-16 13:37:37,511 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-16 13:37:37,511 INFO L481 AbstractCegarLoop]: Abstraction has 22 states and 30 transitions. [2020-10-16 13:37:37,511 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-16 13:37:37,511 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 30 transitions. [2020-10-16 13:37:37,512 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-10-16 13:37:37,512 INFO L414 BasicCegarLoop]: Found error trace [2020-10-16 13:37:37,512 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 13:37:37,512 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-16 13:37:37,513 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 13:37:37,513 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 13:37:37,513 INFO L82 PathProgramCache]: Analyzing trace with hash -830614075, now seen corresponding path program 1 times [2020-10-16 13:37:37,514 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 13:37:37,514 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1077957483] [2020-10-16 13:37:37,515 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 13:37:37,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 13:37:37,552 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-16 13:37:37,552 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1077957483] [2020-10-16 13:37:37,552 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 13:37:37,553 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-16 13:37:37,555 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [2092042435] [2020-10-16 13:37:37,555 INFO L200 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-16 13:37:37,556 INFO L255 McrAutomatonBuilder]: Started intersection. [2020-10-16 13:37:37,558 INFO L258 McrAutomatonBuilder]: Finished intersection with 21 states and 28 transitions. [2020-10-16 13:37:37,562 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-16 13:37:37,572 INFO L313 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-10-16 13:37:37,572 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-16 13:37:37,573 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 13:37:37,573 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-16 13:37:37,573 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-16 13:37:37,573 INFO L87 Difference]: Start difference. First operand 22 states and 30 transitions. Second operand 3 states. [2020-10-16 13:37:37,578 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-16 13:37:37,579 INFO L93 Difference]: Finished difference Result 21 states and 29 transitions. [2020-10-16 13:37:37,579 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-16 13:37:37,580 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 12 [2020-10-16 13:37:37,580 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-16 13:37:37,580 INFO L225 Difference]: With dead ends: 21 [2020-10-16 13:37:37,580 INFO L226 Difference]: Without dead ends: 0 [2020-10-16 13:37:37,581 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-16 13:37:37,581 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-10-16 13:37:37,581 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-10-16 13:37:37,581 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-10-16 13:37:37,581 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-10-16 13:37:37,581 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 12 [2020-10-16 13:37:37,582 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-16 13:37:37,582 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-16 13:37:37,582 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-16 13:37:37,582 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-10-16 13:37:37,582 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-10-16 13:37:37,582 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-16 13:37:37,586 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.10 01:37:37 BasicIcfg [2020-10-16 13:37:37,587 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-16 13:37:37,590 INFO L168 Benchmark]: Toolchain (without parser) took 3505.97 ms. Allocated memory was 140.0 MB in the beginning and 247.5 MB in the end (delta: 107.5 MB). Free memory was 101.3 MB in the beginning and 156.2 MB in the end (delta: -54.8 MB). Peak memory consumption was 52.7 MB. Max. memory is 7.1 GB. [2020-10-16 13:37:37,591 INFO L168 Benchmark]: CDTParser took 0.17 ms. Allocated memory is still 140.0 MB. Free memory was 121.5 MB in the beginning and 121.3 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. [2020-10-16 13:37:37,594 INFO L168 Benchmark]: CACSL2BoogieTranslator took 734.10 ms. Allocated memory was 140.0 MB in the beginning and 202.9 MB in the end (delta: 62.9 MB). Free memory was 101.1 MB in the beginning and 160.1 MB in the end (delta: -59.0 MB). Peak memory consumption was 24.4 MB. Max. memory is 7.1 GB. [2020-10-16 13:37:37,600 INFO L168 Benchmark]: Boogie Procedure Inliner took 46.59 ms. Allocated memory is still 202.9 MB. Free memory was 160.1 MB in the beginning and 158.1 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 7.1 GB. [2020-10-16 13:37:37,601 INFO L168 Benchmark]: Boogie Preprocessor took 25.07 ms. Allocated memory is still 202.9 MB. Free memory was 158.1 MB in the beginning and 156.8 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 7.1 GB. [2020-10-16 13:37:37,602 INFO L168 Benchmark]: RCFGBuilder took 361.48 ms. Allocated memory is still 202.9 MB. Free memory was 156.8 MB in the beginning and 136.5 MB in the end (delta: 20.4 MB). Peak memory consumption was 20.4 MB. Max. memory is 7.1 GB. [2020-10-16 13:37:37,603 INFO L168 Benchmark]: TraceAbstraction took 2333.11 ms. Allocated memory was 202.9 MB in the beginning and 247.5 MB in the end (delta: 44.6 MB). Free memory was 136.5 MB in the beginning and 156.2 MB in the end (delta: -19.7 MB). Peak memory consumption was 24.9 MB. Max. memory is 7.1 GB. [2020-10-16 13:37:37,614 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17 ms. Allocated memory is still 140.0 MB. Free memory was 121.5 MB in the beginning and 121.3 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 734.10 ms. Allocated memory was 140.0 MB in the beginning and 202.9 MB in the end (delta: 62.9 MB). Free memory was 101.1 MB in the beginning and 160.1 MB in the end (delta: -59.0 MB). Peak memory consumption was 24.4 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 46.59 ms. Allocated memory is still 202.9 MB. Free memory was 160.1 MB in the beginning and 158.1 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 25.07 ms. Allocated memory is still 202.9 MB. Free memory was 158.1 MB in the beginning and 156.8 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 7.1 GB. * RCFGBuilder took 361.48 ms. Allocated memory is still 202.9 MB. Free memory was 156.8 MB in the beginning and 136.5 MB in the end (delta: 20.4 MB). Peak memory consumption was 20.4 MB. Max. memory is 7.1 GB. * TraceAbstraction took 2333.11 ms. Allocated memory was 202.9 MB in the beginning and 247.5 MB in the end (delta: 44.6 MB). Free memory was 136.5 MB in the beginning and 156.2 MB in the end (delta: -19.7 MB). Peak memory consumption was 24.9 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks 373 VarBasedMoverChecksPositive, 21 VarBasedMoverChecksNegative, 0 SemBasedMoverChecksPositive, 0 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.0s, 22 CheckedPairsTotal, LiptonReductionStatistics: ReductionTime: 1.1s, 60 PlacesBefore, 22 PlacesAfterwards, 55 TransitionsBefore, 15 TransitionsAfterwards, 672 CoEnabledTransitionPairs, 6 FixpointIterations, 12 TrivialSequentialCompositions, 28 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 9 ConcurrentYvCompositions, 2 ChoiceCompositions, 51 TotalNumberOfCompositions, 1289 MoverChecksTotal - 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 3 procedures, 54 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 2.1s, OverallIterations: 5, TraceHistogramMax: 1, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 1.2s, HoareTripleCheckerStatistics: 60 SDtfs, 27 SDslu, 46 SDs, 0 SdLazy, 33 SolverSat, 9 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 35 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=74occurred 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: 0.0s AutomataMinimizationTime, 5 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 42 NumberOfCodeBlocks, 42 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 37 ConstructedInterpolants, 0 QuantifiedInterpolants, 709 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 5 InterpolantComputations, 5 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...