/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-SemanticLbe-MCR.epf -i ../../../trunk/examples/svcomp/pthread-wmm/safe015_tso.oepc.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-4336eb1 [2019-12-27 18:18:30,686 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-12-27 18:18:30,690 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-12-27 18:18:30,709 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-12-27 18:18:30,710 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-12-27 18:18:30,712 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-12-27 18:18:30,714 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-12-27 18:18:30,725 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-12-27 18:18:30,728 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-12-27 18:18:30,731 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-12-27 18:18:30,733 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-12-27 18:18:30,735 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-12-27 18:18:30,736 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-12-27 18:18:30,738 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-12-27 18:18:30,740 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-12-27 18:18:30,742 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-12-27 18:18:30,743 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-12-27 18:18:30,745 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-12-27 18:18:30,746 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-12-27 18:18:30,751 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-12-27 18:18:30,756 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-12-27 18:18:30,760 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-12-27 18:18:30,761 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-12-27 18:18:30,762 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-12-27 18:18:30,764 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-12-27 18:18:30,765 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-12-27 18:18:30,765 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-12-27 18:18:30,766 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-12-27 18:18:30,768 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-12-27 18:18:30,769 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-12-27 18:18:30,769 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-12-27 18:18:30,770 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-12-27 18:18:30,770 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-12-27 18:18:30,771 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-12-27 18:18:30,773 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-12-27 18:18:30,773 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-12-27 18:18:30,774 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-12-27 18:18:30,774 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-12-27 18:18:30,774 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-12-27 18:18:30,775 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-12-27 18:18:30,776 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-12-27 18:18:30,777 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-SemanticLbe-MCR.epf [2019-12-27 18:18:30,805 INFO L113 SettingsManager]: Loading preferences was successful [2019-12-27 18:18:30,805 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-12-27 18:18:30,809 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-12-27 18:18:30,809 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-12-27 18:18:30,809 INFO L138 SettingsManager]: * Use SBE=true [2019-12-27 18:18:30,810 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-12-27 18:18:30,810 INFO L138 SettingsManager]: * sizeof long=4 [2019-12-27 18:18:30,810 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-12-27 18:18:30,810 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-12-27 18:18:30,810 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-12-27 18:18:30,811 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-12-27 18:18:30,811 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-12-27 18:18:30,811 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-12-27 18:18:30,811 INFO L138 SettingsManager]: * sizeof long double=12 [2019-12-27 18:18:30,811 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-12-27 18:18:30,812 INFO L138 SettingsManager]: * Use constant arrays=true [2019-12-27 18:18:30,812 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-12-27 18:18:30,812 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-12-27 18:18:30,812 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-12-27 18:18:30,813 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-12-27 18:18:30,813 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-12-27 18:18:30,813 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-12-27 18:18:30,813 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-12-27 18:18:30,814 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-12-27 18:18:30,814 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-12-27 18:18:30,814 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-12-27 18:18:30,814 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-12-27 18:18:30,814 INFO L138 SettingsManager]: * Override the interpolant automaton setting of the refinement strategy=true [2019-12-27 18:18:30,815 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-12-27 18:18:30,815 INFO L138 SettingsManager]: * Interpolant automaton=MCR [2019-12-27 18:18:30,815 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-12-27 18:18:31,074 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-12-27 18:18:31,092 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-12-27 18:18:31,095 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-12-27 18:18:31,096 INFO L271 PluginConnector]: Initializing CDTParser... [2019-12-27 18:18:31,097 INFO L275 PluginConnector]: CDTParser initialized [2019-12-27 18:18:31,098 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe015_tso.oepc.i [2019-12-27 18:18:31,172 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2d2f409ef/ca6c252674154c13ac24f1b6be7b29da/FLAG8923a5364 [2019-12-27 18:18:31,832 INFO L306 CDTParser]: Found 1 translation units. [2019-12-27 18:18:31,832 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe015_tso.oepc.i [2019-12-27 18:18:31,855 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2d2f409ef/ca6c252674154c13ac24f1b6be7b29da/FLAG8923a5364 [2019-12-27 18:18:32,045 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2d2f409ef/ca6c252674154c13ac24f1b6be7b29da [2019-12-27 18:18:32,056 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-12-27 18:18:32,058 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2019-12-27 18:18:32,059 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-12-27 18:18:32,059 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-12-27 18:18:32,062 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-12-27 18:18:32,063 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.12 06:18:32" (1/1) ... [2019-12-27 18:18:32,066 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@23a66491 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 06:18:32, skipping insertion in model container [2019-12-27 18:18:32,067 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.12 06:18:32" (1/1) ... [2019-12-27 18:18:32,074 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-12-27 18:18:32,126 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-12-27 18:18:32,640 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-27 18:18:32,651 INFO L203 MainTranslator]: Completed pre-run [2019-12-27 18:18:32,696 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-27 18:18:32,774 INFO L208 MainTranslator]: Completed translation [2019-12-27 18:18:32,775 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 06:18:32 WrapperNode [2019-12-27 18:18:32,775 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-12-27 18:18:32,776 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-12-27 18:18:32,776 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-12-27 18:18:32,776 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-12-27 18:18:32,786 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 06:18:32" (1/1) ... [2019-12-27 18:18:32,813 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 06:18:32" (1/1) ... [2019-12-27 18:18:32,836 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-12-27 18:18:32,836 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-12-27 18:18:32,836 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-12-27 18:18:32,837 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-12-27 18:18:32,846 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 06:18:32" (1/1) ... [2019-12-27 18:18:32,846 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 06:18:32" (1/1) ... [2019-12-27 18:18:32,850 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 06:18:32" (1/1) ... [2019-12-27 18:18:32,850 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 06:18:32" (1/1) ... [2019-12-27 18:18:32,856 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 06:18:32" (1/1) ... [2019-12-27 18:18:32,859 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 06:18:32" (1/1) ... [2019-12-27 18:18:32,861 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 06:18:32" (1/1) ... [2019-12-27 18:18:32,864 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-12-27 18:18:32,865 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-12-27 18:18:32,865 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-12-27 18:18:32,865 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-12-27 18:18:32,866 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 06:18:32" (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 [2019-12-27 18:18:32,936 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-12-27 18:18:32,936 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2019-12-27 18:18:32,936 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-12-27 18:18:32,936 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-12-27 18:18:32,936 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2019-12-27 18:18:32,937 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2019-12-27 18:18:32,937 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2019-12-27 18:18:32,937 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2019-12-27 18:18:32,937 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2019-12-27 18:18:32,937 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2019-12-27 18:18:32,937 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2019-12-27 18:18:32,938 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-12-27 18:18:32,938 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-12-27 18:18:32,939 WARN L205 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2019-12-27 18:18:33,318 INFO L282 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-12-27 18:18:33,318 INFO L287 CfgBuilder]: Removed 6 assume(true) statements. [2019-12-27 18:18:33,319 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.12 06:18:33 BoogieIcfgContainer [2019-12-27 18:18:33,319 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-12-27 18:18:33,321 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-12-27 18:18:33,321 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-12-27 18:18:33,324 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-12-27 18:18:33,324 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 27.12 06:18:32" (1/3) ... [2019-12-27 18:18:33,325 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7d3f03e1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.12 06:18:33, skipping insertion in model container [2019-12-27 18:18:33,325 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 06:18:32" (2/3) ... [2019-12-27 18:18:33,326 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7d3f03e1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.12 06:18:33, skipping insertion in model container [2019-12-27 18:18:33,326 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.12 06:18:33" (3/3) ... [2019-12-27 18:18:33,327 INFO L109 eAbstractionObserver]: Analyzing ICFG safe015_tso.oepc.i [2019-12-27 18:18:33,337 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2019-12-27 18:18:33,337 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-12-27 18:18:33,345 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-12-27 18:18:33,346 INFO L340 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2019-12-27 18:18:33,374 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 18:18:33,375 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 18:18:33,375 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 18:18:33,375 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 18:18:33,376 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 18:18:33,376 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 18:18:33,376 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 18:18:33,377 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 18:18:33,377 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 18:18:33,377 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 18:18:33,377 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 18:18:33,378 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 18:18:33,378 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 18:18:33,378 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 18:18:33,379 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 18:18:33,379 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 18:18:33,379 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 18:18:33,380 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 18:18:33,383 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 18:18:33,384 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 18:18:33,384 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 18:18:33,384 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 18:18:33,387 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 18:18:33,388 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 18:18:33,388 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 18:18:33,389 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 18:18:33,391 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 18:18:33,391 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 18:18:33,391 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 18:18:33,392 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 18:18:33,404 INFO L249 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2019-12-27 18:18:33,419 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-12-27 18:18:33,419 INFO L374 AbstractCegarLoop]: Hoare is true [2019-12-27 18:18:33,419 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-12-27 18:18:33,419 INFO L376 AbstractCegarLoop]: Backedges is MCR [2019-12-27 18:18:33,419 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-12-27 18:18:33,420 INFO L378 AbstractCegarLoop]: Difference is false [2019-12-27 18:18:33,420 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-12-27 18:18:33,420 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-12-27 18:18:33,434 INFO L152 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 62 places, 53 transitions [2019-12-27 18:18:33,436 INFO L68 FinitePrefix]: Start finitePrefix. Operand has 62 places, 53 transitions [2019-12-27 18:18:33,480 INFO L132 PetriNetUnfolder]: 1/50 cut-off events. [2019-12-27 18:18:33,481 INFO L133 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2019-12-27 18:18:33,487 INFO L76 FinitePrefix]: Finished finitePrefix Result has 60 conditions, 50 events. 1/50 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 22 event pairs. 0/48 useless extension candidates. Maximal degree in co-relation 39. Up to 2 conditions per place. [2019-12-27 18:18:33,489 INFO L68 FinitePrefix]: Start finitePrefix. Operand has 62 places, 53 transitions [2019-12-27 18:18:33,507 INFO L132 PetriNetUnfolder]: 1/50 cut-off events. [2019-12-27 18:18:33,507 INFO L133 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2019-12-27 18:18:33,511 INFO L76 FinitePrefix]: Finished finitePrefix Result has 60 conditions, 50 events. 1/50 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 22 event pairs. 0/48 useless extension candidates. Maximal degree in co-relation 39. Up to 2 conditions per place. [2019-12-27 18:18:33,513 INFO L158 etLargeBlockEncoding]: Number of co-enabled transitions 450 [2019-12-27 18:18:33,516 INFO L170 etLargeBlockEncoding]: Semantic Check. [2019-12-27 18:18:34,940 WARN L192 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 49 DAG size of output: 47 [2019-12-27 18:18:35,112 INFO L206 etLargeBlockEncoding]: Checked pairs total: 504 [2019-12-27 18:18:35,113 INFO L214 etLargeBlockEncoding]: Total number of compositions: 44 [2019-12-27 18:18:35,116 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 21 places, 15 transitions [2019-12-27 18:18:35,126 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 46 states. [2019-12-27 18:18:35,128 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states. [2019-12-27 18:18:35,134 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2019-12-27 18:18:35,134 INFO L403 BasicCegarLoop]: Found error trace [2019-12-27 18:18:35,135 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2019-12-27 18:18:35,135 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-27 18:18:35,139 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-27 18:18:35,140 INFO L82 PathProgramCache]: Analyzing trace with hash -411766657, now seen corresponding path program 1 times [2019-12-27 18:18:35,148 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-27 18:18:35,148 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1783511789] [2019-12-27 18:18:35,149 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-27 18:18:35,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-27 18:18:35,398 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-27 18:18:35,399 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1783511789] [2019-12-27 18:18:35,400 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-27 18:18:35,400 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2019-12-27 18:18:35,401 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1677178510] [2019-12-27 18:18:35,402 INFO L132 pAbStrategyModuleMcr]: Constructing automaton for MCR equivalence class. [2019-12-27 18:18:35,407 INFO L197 pAbStrategyModuleMcr]: Started intersection. [2019-12-27 18:18:35,421 INFO L208 pAbStrategyModuleMcr]: Finished intersection with 9 states and 8 transitions. [2019-12-27 18:18:35,421 INFO L219 pAbStrategyModuleMcr]: Constructing interpolant automaton by labelling MCR automaton. [2019-12-27 18:18:35,426 INFO L288 pAbStrategyModuleMcr]: Construction finished. Needed to calculate wp 0 times. [2019-12-27 18:18:35,426 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-12-27 18:18:35,427 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-27 18:18:35,442 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-12-27 18:18:35,443 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-27 18:18:35,444 INFO L87 Difference]: Start difference. First operand 46 states. Second operand 3 states. [2019-12-27 18:18:35,470 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-27 18:18:35,471 INFO L93 Difference]: Finished difference Result 44 states and 89 transitions. [2019-12-27 18:18:35,471 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-27 18:18:35,472 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 8 [2019-12-27 18:18:35,473 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-27 18:18:35,483 INFO L225 Difference]: With dead ends: 44 [2019-12-27 18:18:35,483 INFO L226 Difference]: Without dead ends: 36 [2019-12-27 18:18:35,485 INFO L631 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 [2019-12-27 18:18:35,504 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36 states. [2019-12-27 18:18:35,521 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36 to 36. [2019-12-27 18:18:35,522 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 36 states. [2019-12-27 18:18:35,524 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 69 transitions. [2019-12-27 18:18:35,525 INFO L78 Accepts]: Start accepts. Automaton has 36 states and 69 transitions. Word has length 8 [2019-12-27 18:18:35,526 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-27 18:18:35,526 INFO L462 AbstractCegarLoop]: Abstraction has 36 states and 69 transitions. [2019-12-27 18:18:35,527 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-12-27 18:18:35,527 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 69 transitions. [2019-12-27 18:18:35,528 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2019-12-27 18:18:35,528 INFO L403 BasicCegarLoop]: Found error trace [2019-12-27 18:18:35,528 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-27 18:18:35,528 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-27 18:18:35,528 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-27 18:18:35,529 INFO L82 PathProgramCache]: Analyzing trace with hash -939565689, now seen corresponding path program 1 times [2019-12-27 18:18:35,529 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-27 18:18:35,529 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [440720872] [2019-12-27 18:18:35,530 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-27 18:18:35,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-27 18:18:35,599 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-27 18:18:35,599 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [440720872] [2019-12-27 18:18:35,600 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-27 18:18:35,600 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2019-12-27 18:18:35,600 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [903409218] [2019-12-27 18:18:35,600 INFO L132 pAbStrategyModuleMcr]: Constructing automaton for MCR equivalence class. [2019-12-27 18:18:35,601 INFO L197 pAbStrategyModuleMcr]: Started intersection. [2019-12-27 18:18:35,606 INFO L208 pAbStrategyModuleMcr]: Finished intersection with 14 states and 17 transitions. [2019-12-27 18:18:35,606 INFO L219 pAbStrategyModuleMcr]: Constructing interpolant automaton by labelling MCR automaton. [2019-12-27 18:18:35,607 INFO L288 pAbStrategyModuleMcr]: Construction finished. Needed to calculate wp 0 times. [2019-12-27 18:18:35,611 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-12-27 18:18:35,612 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-27 18:18:35,612 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-12-27 18:18:35,612 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-27 18:18:35,612 INFO L87 Difference]: Start difference. First operand 36 states and 69 transitions. Second operand 3 states. [2019-12-27 18:18:35,639 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-27 18:18:35,639 INFO L93 Difference]: Finished difference Result 33 states and 61 transitions. [2019-12-27 18:18:35,640 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-27 18:18:35,640 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 9 [2019-12-27 18:18:35,640 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-27 18:18:35,641 INFO L225 Difference]: With dead ends: 33 [2019-12-27 18:18:35,641 INFO L226 Difference]: Without dead ends: 33 [2019-12-27 18:18:35,643 INFO L631 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 [2019-12-27 18:18:35,643 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33 states. [2019-12-27 18:18:35,648 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33 to 33. [2019-12-27 18:18:35,649 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 33 states. [2019-12-27 18:18:35,651 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 33 states and 61 transitions. [2019-12-27 18:18:35,652 INFO L78 Accepts]: Start accepts. Automaton has 33 states and 61 transitions. Word has length 9 [2019-12-27 18:18:35,652 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-27 18:18:35,652 INFO L462 AbstractCegarLoop]: Abstraction has 33 states and 61 transitions. [2019-12-27 18:18:35,652 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-12-27 18:18:35,652 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 61 transitions. [2019-12-27 18:18:35,653 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2019-12-27 18:18:35,653 INFO L403 BasicCegarLoop]: Found error trace [2019-12-27 18:18:35,653 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-27 18:18:35,654 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-27 18:18:35,654 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-27 18:18:35,654 INFO L82 PathProgramCache]: Analyzing trace with hash 934712652, now seen corresponding path program 1 times [2019-12-27 18:18:35,655 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-27 18:18:35,655 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [894218585] [2019-12-27 18:18:35,655 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-27 18:18:35,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-27 18:18:35,755 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-27 18:18:35,756 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [894218585] [2019-12-27 18:18:35,756 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-27 18:18:35,756 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2019-12-27 18:18:35,756 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [456530482] [2019-12-27 18:18:35,756 INFO L132 pAbStrategyModuleMcr]: Constructing automaton for MCR equivalence class. [2019-12-27 18:18:35,757 INFO L197 pAbStrategyModuleMcr]: Started intersection. [2019-12-27 18:18:35,759 INFO L208 pAbStrategyModuleMcr]: Finished intersection with 17 states and 22 transitions. [2019-12-27 18:18:35,759 INFO L219 pAbStrategyModuleMcr]: Constructing interpolant automaton by labelling MCR automaton. [2019-12-27 18:18:35,759 INFO L288 pAbStrategyModuleMcr]: Construction finished. Needed to calculate wp 0 times. [2019-12-27 18:18:35,760 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-12-27 18:18:35,760 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-27 18:18:35,760 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-12-27 18:18:35,761 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-27 18:18:35,761 INFO L87 Difference]: Start difference. First operand 33 states and 61 transitions. Second operand 3 states. [2019-12-27 18:18:35,772 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-27 18:18:35,772 INFO L93 Difference]: Finished difference Result 32 states and 59 transitions. [2019-12-27 18:18:35,773 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-27 18:18:35,773 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 10 [2019-12-27 18:18:35,773 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-27 18:18:35,774 INFO L225 Difference]: With dead ends: 32 [2019-12-27 18:18:35,774 INFO L226 Difference]: Without dead ends: 32 [2019-12-27 18:18:35,774 INFO L631 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 [2019-12-27 18:18:35,775 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32 states. [2019-12-27 18:18:35,778 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32 to 32. [2019-12-27 18:18:35,778 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 32 states. [2019-12-27 18:18:35,779 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 32 states and 59 transitions. [2019-12-27 18:18:35,779 INFO L78 Accepts]: Start accepts. Automaton has 32 states and 59 transitions. Word has length 10 [2019-12-27 18:18:35,779 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-27 18:18:35,780 INFO L462 AbstractCegarLoop]: Abstraction has 32 states and 59 transitions. [2019-12-27 18:18:35,780 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-12-27 18:18:35,780 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states and 59 transitions. [2019-12-27 18:18:35,780 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2019-12-27 18:18:35,781 INFO L403 BasicCegarLoop]: Found error trace [2019-12-27 18:18:35,781 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-27 18:18:35,781 INFO L410 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-27 18:18:35,781 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-27 18:18:35,781 INFO L82 PathProgramCache]: Analyzing trace with hash -679898138, now seen corresponding path program 1 times [2019-12-27 18:18:35,782 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-27 18:18:35,782 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [461012205] [2019-12-27 18:18:35,782 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-27 18:18:35,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-27 18:18:35,817 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-27 18:18:35,818 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [461012205] [2019-12-27 18:18:35,818 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-27 18:18:35,818 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-12-27 18:18:35,818 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1361610933] [2019-12-27 18:18:35,819 INFO L132 pAbStrategyModuleMcr]: Constructing automaton for MCR equivalence class. [2019-12-27 18:18:35,820 INFO L197 pAbStrategyModuleMcr]: Started intersection. [2019-12-27 18:18:35,822 INFO L208 pAbStrategyModuleMcr]: Finished intersection with 13 states and 14 transitions. [2019-12-27 18:18:35,822 INFO L219 pAbStrategyModuleMcr]: Constructing interpolant automaton by labelling MCR automaton. [2019-12-27 18:18:35,822 INFO L288 pAbStrategyModuleMcr]: Construction finished. Needed to calculate wp 0 times. [2019-12-27 18:18:35,823 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-12-27 18:18:35,824 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-27 18:18:35,824 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-12-27 18:18:35,824 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-27 18:18:35,824 INFO L87 Difference]: Start difference. First operand 32 states and 59 transitions. Second operand 3 states. [2019-12-27 18:18:35,838 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-27 18:18:35,839 INFO L93 Difference]: Finished difference Result 35 states and 61 transitions. [2019-12-27 18:18:35,839 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-27 18:18:35,839 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 10 [2019-12-27 18:18:35,839 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-27 18:18:35,840 INFO L225 Difference]: With dead ends: 35 [2019-12-27 18:18:35,840 INFO L226 Difference]: Without dead ends: 21 [2019-12-27 18:18:35,840 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-27 18:18:35,841 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21 states. [2019-12-27 18:18:35,842 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21 to 21. [2019-12-27 18:18:35,842 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2019-12-27 18:18:35,843 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 31 transitions. [2019-12-27 18:18:35,843 INFO L78 Accepts]: Start accepts. Automaton has 21 states and 31 transitions. Word has length 10 [2019-12-27 18:18:35,843 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-27 18:18:35,843 INFO L462 AbstractCegarLoop]: Abstraction has 21 states and 31 transitions. [2019-12-27 18:18:35,844 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-12-27 18:18:35,844 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 31 transitions. [2019-12-27 18:18:35,844 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2019-12-27 18:18:35,844 INFO L403 BasicCegarLoop]: Found error trace [2019-12-27 18:18:35,844 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-27 18:18:35,845 INFO L410 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-27 18:18:35,845 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-27 18:18:35,845 INFO L82 PathProgramCache]: Analyzing trace with hash 398044178, now seen corresponding path program 1 times [2019-12-27 18:18:35,845 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-27 18:18:35,846 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1731836065] [2019-12-27 18:18:35,846 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-27 18:18:35,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-27 18:18:35,893 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-27 18:18:35,894 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1731836065] [2019-12-27 18:18:35,894 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-27 18:18:35,894 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-12-27 18:18:35,897 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [931542547] [2019-12-27 18:18:35,897 INFO L132 pAbStrategyModuleMcr]: Constructing automaton for MCR equivalence class. [2019-12-27 18:18:35,898 INFO L197 pAbStrategyModuleMcr]: Started intersection. [2019-12-27 18:18:35,903 INFO L208 pAbStrategyModuleMcr]: Finished intersection with 14 states and 15 transitions. [2019-12-27 18:18:35,903 INFO L219 pAbStrategyModuleMcr]: Constructing interpolant automaton by labelling MCR automaton. [2019-12-27 18:18:35,903 INFO L288 pAbStrategyModuleMcr]: Construction finished. Needed to calculate wp 0 times. [2019-12-27 18:18:35,904 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-12-27 18:18:35,904 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-27 18:18:35,904 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-12-27 18:18:35,904 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-12-27 18:18:35,905 INFO L87 Difference]: Start difference. First operand 21 states and 31 transitions. Second operand 4 states. [2019-12-27 18:18:35,934 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-27 18:18:35,934 INFO L93 Difference]: Finished difference Result 23 states and 32 transitions. [2019-12-27 18:18:35,934 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-12-27 18:18:35,934 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 11 [2019-12-27 18:18:35,935 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-27 18:18:35,935 INFO L225 Difference]: With dead ends: 23 [2019-12-27 18:18:35,935 INFO L226 Difference]: Without dead ends: 15 [2019-12-27 18:18:35,936 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2019-12-27 18:18:35,937 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15 states. [2019-12-27 18:18:35,940 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15 to 15. [2019-12-27 18:18:35,940 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2019-12-27 18:18:35,940 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 17 transitions. [2019-12-27 18:18:35,940 INFO L78 Accepts]: Start accepts. Automaton has 15 states and 17 transitions. Word has length 11 [2019-12-27 18:18:35,941 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-27 18:18:35,942 INFO L462 AbstractCegarLoop]: Abstraction has 15 states and 17 transitions. [2019-12-27 18:18:35,942 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-12-27 18:18:35,942 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 17 transitions. [2019-12-27 18:18:35,942 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2019-12-27 18:18:35,942 INFO L403 BasicCegarLoop]: Found error trace [2019-12-27 18:18:35,942 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-27 18:18:35,943 INFO L410 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-27 18:18:35,943 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-27 18:18:35,943 INFO L82 PathProgramCache]: Analyzing trace with hash -462405218, now seen corresponding path program 2 times [2019-12-27 18:18:35,943 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-27 18:18:35,944 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2034331675] [2019-12-27 18:18:35,944 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-27 18:18:35,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-27 18:18:36,020 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-27 18:18:36,021 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2034331675] [2019-12-27 18:18:36,022 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-27 18:18:36,022 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-12-27 18:18:36,022 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [116745577] [2019-12-27 18:18:36,022 INFO L132 pAbStrategyModuleMcr]: Constructing automaton for MCR equivalence class. [2019-12-27 18:18:36,024 INFO L197 pAbStrategyModuleMcr]: Started intersection. [2019-12-27 18:18:36,025 INFO L208 pAbStrategyModuleMcr]: Finished intersection with 12 states and 11 transitions. [2019-12-27 18:18:36,026 INFO L219 pAbStrategyModuleMcr]: Constructing interpolant automaton by labelling MCR automaton. [2019-12-27 18:18:36,026 INFO L288 pAbStrategyModuleMcr]: Construction finished. Needed to calculate wp 0 times. [2019-12-27 18:18:36,026 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-12-27 18:18:36,026 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-27 18:18:36,027 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-12-27 18:18:36,027 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-12-27 18:18:36,027 INFO L87 Difference]: Start difference. First operand 15 states and 17 transitions. Second operand 4 states. [2019-12-27 18:18:36,046 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-27 18:18:36,046 INFO L93 Difference]: Finished difference Result 14 states and 16 transitions. [2019-12-27 18:18:36,047 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-12-27 18:18:36,047 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 11 [2019-12-27 18:18:36,048 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-27 18:18:36,048 INFO L225 Difference]: With dead ends: 14 [2019-12-27 18:18:36,048 INFO L226 Difference]: Without dead ends: 0 [2019-12-27 18:18:36,048 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2019-12-27 18:18:36,048 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-12-27 18:18:36,049 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-12-27 18:18:36,049 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-12-27 18:18:36,049 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-12-27 18:18:36,049 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 11 [2019-12-27 18:18:36,049 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-27 18:18:36,049 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-12-27 18:18:36,050 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-12-27 18:18:36,050 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-12-27 18:18:36,050 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-12-27 18:18:36,054 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 27.12 06:18:36 BasicIcfg [2019-12-27 18:18:36,054 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-12-27 18:18:36,056 INFO L168 Benchmark]: Toolchain (without parser) took 3998.43 ms. Allocated memory was 144.7 MB in the beginning and 248.0 MB in the end (delta: 103.3 MB). Free memory was 99.7 MB in the beginning and 114.7 MB in the end (delta: -15.1 MB). Peak memory consumption was 88.2 MB. Max. memory is 7.1 GB. [2019-12-27 18:18:36,057 INFO L168 Benchmark]: CDTParser took 0.17 ms. Allocated memory is still 144.7 MB. Free memory was 119.7 MB in the beginning and 119.5 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2019-12-27 18:18:36,058 INFO L168 Benchmark]: CACSL2BoogieTranslator took 716.37 ms. Allocated memory was 144.7 MB in the beginning and 202.9 MB in the end (delta: 58.2 MB). Free memory was 99.5 MB in the beginning and 158.6 MB in the end (delta: -59.1 MB). Peak memory consumption was 20.2 MB. Max. memory is 7.1 GB. [2019-12-27 18:18:36,059 INFO L168 Benchmark]: Boogie Procedure Inliner took 60.34 ms. Allocated memory is still 202.9 MB. Free memory was 158.6 MB in the beginning and 156.6 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 7.1 GB. [2019-12-27 18:18:36,060 INFO L168 Benchmark]: Boogie Preprocessor took 27.92 ms. Allocated memory is still 202.9 MB. Free memory was 156.6 MB in the beginning and 155.3 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 7.1 GB. [2019-12-27 18:18:36,060 INFO L168 Benchmark]: RCFGBuilder took 455.05 ms. Allocated memory is still 202.9 MB. Free memory was 155.3 MB in the beginning and 134.8 MB in the end (delta: 20.5 MB). Peak memory consumption was 20.5 MB. Max. memory is 7.1 GB. [2019-12-27 18:18:36,061 INFO L168 Benchmark]: TraceAbstraction took 2733.53 ms. Allocated memory was 202.9 MB in the beginning and 248.0 MB in the end (delta: 45.1 MB). Free memory was 134.2 MB in the beginning and 114.7 MB in the end (delta: 19.4 MB). Peak memory consumption was 64.5 MB. Max. memory is 7.1 GB. [2019-12-27 18:18:36,066 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17 ms. Allocated memory is still 144.7 MB. Free memory was 119.7 MB in the beginning and 119.5 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 716.37 ms. Allocated memory was 144.7 MB in the beginning and 202.9 MB in the end (delta: 58.2 MB). Free memory was 99.5 MB in the beginning and 158.6 MB in the end (delta: -59.1 MB). Peak memory consumption was 20.2 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 60.34 ms. Allocated memory is still 202.9 MB. Free memory was 158.6 MB in the beginning and 156.6 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 27.92 ms. Allocated memory is still 202.9 MB. Free memory was 156.6 MB in the beginning and 155.3 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 7.1 GB. * RCFGBuilder took 455.05 ms. Allocated memory is still 202.9 MB. Free memory was 155.3 MB in the beginning and 134.8 MB in the end (delta: 20.5 MB). Peak memory consumption was 20.5 MB. Max. memory is 7.1 GB. * TraceAbstraction took 2733.53 ms. Allocated memory was 202.9 MB in the beginning and 248.0 MB in the end (delta: 45.1 MB). Free memory was 134.2 MB in the beginning and 114.7 MB in the end (delta: 19.4 MB). Peak memory consumption was 64.5 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks LbeTime: 1.6s, 62 ProgramPointsBefore, 21 ProgramPointsAfterwards, 53 TransitionsBefore, 15 TransitionsAfterwards, 450 CoEnabledTransitionPairs, 7 FixpointIterations, 13 TrivialSequentialCompositions, 27 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 4 ConcurrentYvCompositions, 1 ChoiceCompositions, 246 VarBasedMoverChecksPositive, 18 VarBasedMoverChecksNegative, 4 SemBasedMoverChecksPositive, 18 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.2s, 0 MoverChecksTotal, 504 CheckedPairsTotal, 44 TotalNumberOfCompositions - 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 4 procedures, 53 locations, 1 error locations. Result: SAFE, OverallTime: 2.6s, OverallIterations: 6, TraceHistogramMax: 1, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 67 SDtfs, 14 SDslu, 37 SDs, 0 SdLazy, 30 SolverSat, 2 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 12 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=46occurred 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, 6 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 59 NumberOfCodeBlocks, 59 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 53 ConstructedInterpolants, 0 QuantifiedInterpolants, 1219 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 6 InterpolantComputations, 6 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...