/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/safe037_pso.opt.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-4336eb1 [2019-12-27 18:53:20,766 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-12-27 18:53:20,768 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-12-27 18:53:20,781 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-12-27 18:53:20,781 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-12-27 18:53:20,782 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-12-27 18:53:20,783 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-12-27 18:53:20,785 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-12-27 18:53:20,787 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-12-27 18:53:20,788 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-12-27 18:53:20,789 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-12-27 18:53:20,790 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-12-27 18:53:20,790 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-12-27 18:53:20,791 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-12-27 18:53:20,792 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-12-27 18:53:20,794 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-12-27 18:53:20,794 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-12-27 18:53:20,795 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-12-27 18:53:20,797 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-12-27 18:53:20,799 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-12-27 18:53:20,801 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-12-27 18:53:20,802 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-12-27 18:53:20,803 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-12-27 18:53:20,804 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-12-27 18:53:20,806 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-12-27 18:53:20,806 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-12-27 18:53:20,807 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-12-27 18:53:20,808 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-12-27 18:53:20,808 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-12-27 18:53:20,809 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-12-27 18:53:20,809 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-12-27 18:53:20,810 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-12-27 18:53:20,811 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-12-27 18:53:20,812 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-12-27 18:53:20,813 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-12-27 18:53:20,813 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-12-27 18:53:20,814 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-12-27 18:53:20,814 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-12-27 18:53:20,814 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-12-27 18:53:20,815 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-12-27 18:53:20,816 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-12-27 18:53:20,817 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 18:53:20,837 INFO L113 SettingsManager]: Loading preferences was successful [2019-12-27 18:53:20,837 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-12-27 18:53:20,839 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-12-27 18:53:20,839 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-12-27 18:53:20,839 INFO L138 SettingsManager]: * Use SBE=true [2019-12-27 18:53:20,839 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-12-27 18:53:20,839 INFO L138 SettingsManager]: * sizeof long=4 [2019-12-27 18:53:20,840 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-12-27 18:53:20,840 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-12-27 18:53:20,841 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-12-27 18:53:20,841 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-12-27 18:53:20,842 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-12-27 18:53:20,842 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-12-27 18:53:20,842 INFO L138 SettingsManager]: * sizeof long double=12 [2019-12-27 18:53:20,843 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-12-27 18:53:20,843 INFO L138 SettingsManager]: * Use constant arrays=true [2019-12-27 18:53:20,843 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-12-27 18:53:20,843 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-12-27 18:53:20,843 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-12-27 18:53:20,844 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-12-27 18:53:20,844 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-12-27 18:53:20,844 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-12-27 18:53:20,844 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-12-27 18:53:20,844 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-12-27 18:53:20,845 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-12-27 18:53:20,845 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-12-27 18:53:20,845 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-12-27 18:53:20,845 INFO L138 SettingsManager]: * Override the interpolant automaton setting of the refinement strategy=true [2019-12-27 18:53:20,845 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-12-27 18:53:20,845 INFO L138 SettingsManager]: * Interpolant automaton=MCR [2019-12-27 18:53:20,846 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-12-27 18:53:21,117 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-12-27 18:53:21,130 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-12-27 18:53:21,133 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-12-27 18:53:21,135 INFO L271 PluginConnector]: Initializing CDTParser... [2019-12-27 18:53:21,135 INFO L275 PluginConnector]: CDTParser initialized [2019-12-27 18:53:21,136 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe037_pso.opt.i [2019-12-27 18:53:21,197 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8308e1b42/fb94a3282c9a445cb26d75e62ea6eb7b/FLAG735d2b377 [2019-12-27 18:53:21,758 INFO L306 CDTParser]: Found 1 translation units. [2019-12-27 18:53:21,759 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe037_pso.opt.i [2019-12-27 18:53:21,773 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8308e1b42/fb94a3282c9a445cb26d75e62ea6eb7b/FLAG735d2b377 [2019-12-27 18:53:21,996 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8308e1b42/fb94a3282c9a445cb26d75e62ea6eb7b [2019-12-27 18:53:22,005 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-12-27 18:53:22,008 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2019-12-27 18:53:22,012 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-12-27 18:53:22,012 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-12-27 18:53:22,016 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-12-27 18:53:22,017 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.12 06:53:21" (1/1) ... [2019-12-27 18:53:22,021 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5046e964 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 06:53:22, skipping insertion in model container [2019-12-27 18:53:22,021 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.12 06:53:21" (1/1) ... [2019-12-27 18:53:22,031 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-12-27 18:53:22,094 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-12-27 18:53:22,634 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-27 18:53:22,650 INFO L203 MainTranslator]: Completed pre-run [2019-12-27 18:53:22,726 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-27 18:53:22,816 INFO L208 MainTranslator]: Completed translation [2019-12-27 18:53:22,816 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 06:53:22 WrapperNode [2019-12-27 18:53:22,816 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-12-27 18:53:22,817 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-12-27 18:53:22,817 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-12-27 18:53:22,818 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-12-27 18:53:22,829 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 06:53:22" (1/1) ... [2019-12-27 18:53:22,867 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 06:53:22" (1/1) ... [2019-12-27 18:53:22,898 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-12-27 18:53:22,899 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-12-27 18:53:22,899 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-12-27 18:53:22,899 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-12-27 18:53:22,909 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 06:53:22" (1/1) ... [2019-12-27 18:53:22,909 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 06:53:22" (1/1) ... [2019-12-27 18:53:22,926 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 06:53:22" (1/1) ... [2019-12-27 18:53:22,927 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 06:53:22" (1/1) ... [2019-12-27 18:53:22,943 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 06:53:22" (1/1) ... [2019-12-27 18:53:22,945 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 06:53:22" (1/1) ... [2019-12-27 18:53:22,949 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 06:53:22" (1/1) ... [2019-12-27 18:53:22,957 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-12-27 18:53:22,958 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-12-27 18:53:22,958 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-12-27 18:53:22,958 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-12-27 18:53:22,960 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 06:53:22" (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 18:53:23,033 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-12-27 18:53:23,034 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2019-12-27 18:53:23,034 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-12-27 18:53:23,034 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-12-27 18:53:23,034 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2019-12-27 18:53:23,034 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2019-12-27 18:53:23,035 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2019-12-27 18:53:23,035 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2019-12-27 18:53:23,035 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2019-12-27 18:53:23,035 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2019-12-27 18:53:23,035 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2019-12-27 18:53:23,035 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-12-27 18:53:23,036 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-12-27 18:53:23,037 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 18:53:23,411 INFO L282 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-12-27 18:53:23,411 INFO L287 CfgBuilder]: Removed 6 assume(true) statements. [2019-12-27 18:53:23,413 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.12 06:53:23 BoogieIcfgContainer [2019-12-27 18:53:23,413 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-12-27 18:53:23,414 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-12-27 18:53:23,414 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-12-27 18:53:23,418 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-12-27 18:53:23,418 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 27.12 06:53:21" (1/3) ... [2019-12-27 18:53:23,419 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2713acd3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.12 06:53:23, skipping insertion in model container [2019-12-27 18:53:23,419 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 06:53:22" (2/3) ... [2019-12-27 18:53:23,420 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2713acd3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.12 06:53:23, skipping insertion in model container [2019-12-27 18:53:23,420 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.12 06:53:23" (3/3) ... [2019-12-27 18:53:23,421 INFO L109 eAbstractionObserver]: Analyzing ICFG safe037_pso.opt.i [2019-12-27 18:53:23,434 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2019-12-27 18:53:23,435 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-12-27 18:53:23,447 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-12-27 18:53:23,448 INFO L340 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2019-12-27 18:53:23,476 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 18:53:23,477 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 18:53:23,477 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 18:53:23,477 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 18:53:23,478 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 18:53:23,478 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 18:53:23,479 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 18:53:23,479 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 18:53:23,479 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 18:53:23,479 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 18:53:23,480 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 18:53:23,480 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 18:53:23,481 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 18:53:23,481 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 18:53:23,481 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 18:53:23,481 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 18:53:23,482 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 18:53:23,482 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 18:53:23,486 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 18:53:23,487 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 18:53:23,487 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 18:53:23,487 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 18:53:23,493 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 18:53:23,494 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 18:53:23,494 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 18:53:23,494 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 18:53:23,497 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 18:53:23,497 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 18:53:23,497 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 18:53:23,497 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 18:53:23,513 INFO L249 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2019-12-27 18:53:23,529 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-12-27 18:53:23,529 INFO L374 AbstractCegarLoop]: Hoare is true [2019-12-27 18:53:23,529 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-12-27 18:53:23,529 INFO L376 AbstractCegarLoop]: Backedges is MCR [2019-12-27 18:53:23,530 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-12-27 18:53:23,530 INFO L378 AbstractCegarLoop]: Difference is false [2019-12-27 18:53:23,530 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-12-27 18:53:23,530 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-12-27 18:53:23,543 INFO L152 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 64 places, 55 transitions [2019-12-27 18:53:23,545 INFO L68 FinitePrefix]: Start finitePrefix. Operand has 64 places, 55 transitions [2019-12-27 18:53:23,591 INFO L132 PetriNetUnfolder]: 1/52 cut-off events. [2019-12-27 18:53:23,591 INFO L133 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2019-12-27 18:53:23,600 INFO L76 FinitePrefix]: Finished finitePrefix Result has 62 conditions, 52 events. 1/52 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 21 event pairs. 0/50 useless extension candidates. Maximal degree in co-relation 39. Up to 2 conditions per place. [2019-12-27 18:53:23,604 INFO L68 FinitePrefix]: Start finitePrefix. Operand has 64 places, 55 transitions [2019-12-27 18:53:23,639 INFO L132 PetriNetUnfolder]: 1/52 cut-off events. [2019-12-27 18:53:23,639 INFO L133 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2019-12-27 18:53:23,641 INFO L76 FinitePrefix]: Finished finitePrefix Result has 62 conditions, 52 events. 1/52 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 21 event pairs. 0/50 useless extension candidates. Maximal degree in co-relation 39. Up to 2 conditions per place. [2019-12-27 18:53:23,643 INFO L158 etLargeBlockEncoding]: Number of co-enabled transitions 450 [2019-12-27 18:53:23,644 INFO L170 etLargeBlockEncoding]: Semantic Check. [2019-12-27 18:53:24,897 WARN L192 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 42 DAG size of output: 37 [2019-12-27 18:53:25,148 WARN L192 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 51 [2019-12-27 18:53:25,208 INFO L206 etLargeBlockEncoding]: Checked pairs total: 425 [2019-12-27 18:53:25,208 INFO L214 etLargeBlockEncoding]: Total number of compositions: 45 [2019-12-27 18:53:25,212 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 22 places, 17 transitions [2019-12-27 18:53:25,221 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 54 states. [2019-12-27 18:53:25,223 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states. [2019-12-27 18:53:25,229 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2019-12-27 18:53:25,229 INFO L403 BasicCegarLoop]: Found error trace [2019-12-27 18:53:25,230 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2019-12-27 18:53:25,230 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-27 18:53:25,235 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-27 18:53:25,235 INFO L82 PathProgramCache]: Analyzing trace with hash 1086085239, now seen corresponding path program 1 times [2019-12-27 18:53:25,243 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-27 18:53:25,244 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1966871973] [2019-12-27 18:53:25,244 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-27 18:53:25,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-27 18:53:25,601 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 18:53:25,601 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1966871973] [2019-12-27 18:53:25,602 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-27 18:53:25,603 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-12-27 18:53:25,603 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1821670618] [2019-12-27 18:53:25,604 INFO L132 pAbStrategyModuleMcr]: Constructing automaton for MCR equivalence class. [2019-12-27 18:53:25,610 INFO L197 pAbStrategyModuleMcr]: Started intersection. [2019-12-27 18:53:25,624 INFO L208 pAbStrategyModuleMcr]: Finished intersection with 9 states and 8 transitions. [2019-12-27 18:53:25,625 INFO L219 pAbStrategyModuleMcr]: Constructing interpolant automaton by labelling MCR automaton. [2019-12-27 18:53:25,629 INFO L288 pAbStrategyModuleMcr]: Construction finished. Needed to calculate wp 0 times. [2019-12-27 18:53:25,629 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-12-27 18:53:25,630 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-27 18:53:25,644 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-12-27 18:53:25,645 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-12-27 18:53:25,647 INFO L87 Difference]: Start difference. First operand 54 states. Second operand 4 states. [2019-12-27 18:53:25,706 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-27 18:53:25,706 INFO L93 Difference]: Finished difference Result 58 states and 113 transitions. [2019-12-27 18:53:25,707 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-12-27 18:53:25,709 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 8 [2019-12-27 18:53:25,709 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-27 18:53:25,720 INFO L225 Difference]: With dead ends: 58 [2019-12-27 18:53:25,720 INFO L226 Difference]: Without dead ends: 36 [2019-12-27 18:53:25,721 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 18:53:25,741 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36 states. [2019-12-27 18:53:25,758 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36 to 36. [2019-12-27 18:53:25,759 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 36 states. [2019-12-27 18:53:25,761 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 68 transitions. [2019-12-27 18:53:25,762 INFO L78 Accepts]: Start accepts. Automaton has 36 states and 68 transitions. Word has length 8 [2019-12-27 18:53:25,762 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-27 18:53:25,763 INFO L462 AbstractCegarLoop]: Abstraction has 36 states and 68 transitions. [2019-12-27 18:53:25,763 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-12-27 18:53:25,763 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 68 transitions. [2019-12-27 18:53:25,764 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2019-12-27 18:53:25,764 INFO L403 BasicCegarLoop]: Found error trace [2019-12-27 18:53:25,764 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-27 18:53:25,764 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-27 18:53:25,765 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-27 18:53:25,765 INFO L82 PathProgramCache]: Analyzing trace with hash -744608244, now seen corresponding path program 1 times [2019-12-27 18:53:25,765 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-27 18:53:25,766 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1954281837] [2019-12-27 18:53:25,766 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-27 18:53:25,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-27 18:53:25,858 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 18:53:25,859 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1954281837] [2019-12-27 18:53:25,859 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-27 18:53:25,859 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-12-27 18:53:25,859 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [364511937] [2019-12-27 18:53:25,860 INFO L132 pAbStrategyModuleMcr]: Constructing automaton for MCR equivalence class. [2019-12-27 18:53:25,861 INFO L197 pAbStrategyModuleMcr]: Started intersection. [2019-12-27 18:53:25,868 INFO L208 pAbStrategyModuleMcr]: Finished intersection with 14 states and 17 transitions. [2019-12-27 18:53:25,868 INFO L219 pAbStrategyModuleMcr]: Constructing interpolant automaton by labelling MCR automaton. [2019-12-27 18:53:25,869 INFO L288 pAbStrategyModuleMcr]: Construction finished. Needed to calculate wp 0 times. [2019-12-27 18:53:25,878 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-12-27 18:53:25,878 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-27 18:53:25,878 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-12-27 18:53:25,879 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2019-12-27 18:53:25,879 INFO L87 Difference]: Start difference. First operand 36 states and 68 transitions. Second operand 5 states. [2019-12-27 18:53:25,933 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-27 18:53:25,933 INFO L93 Difference]: Finished difference Result 37 states and 62 transitions. [2019-12-27 18:53:25,933 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-12-27 18:53:25,934 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 9 [2019-12-27 18:53:25,934 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-27 18:53:25,934 INFO L225 Difference]: With dead ends: 37 [2019-12-27 18:53:25,934 INFO L226 Difference]: Without dead ends: 30 [2019-12-27 18:53:25,935 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2019-12-27 18:53:25,936 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30 states. [2019-12-27 18:53:25,939 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30 to 30. [2019-12-27 18:53:25,940 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 30 states. [2019-12-27 18:53:25,940 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 50 transitions. [2019-12-27 18:53:25,941 INFO L78 Accepts]: Start accepts. Automaton has 30 states and 50 transitions. Word has length 9 [2019-12-27 18:53:25,941 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-27 18:53:25,941 INFO L462 AbstractCegarLoop]: Abstraction has 30 states and 50 transitions. [2019-12-27 18:53:25,941 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-12-27 18:53:25,941 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 50 transitions. [2019-12-27 18:53:25,942 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2019-12-27 18:53:25,942 INFO L403 BasicCegarLoop]: Found error trace [2019-12-27 18:53:25,942 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-27 18:53:25,943 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-27 18:53:25,943 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-27 18:53:25,943 INFO L82 PathProgramCache]: Analyzing trace with hash -1607968112, now seen corresponding path program 1 times [2019-12-27 18:53:25,943 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-27 18:53:25,944 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [614169242] [2019-12-27 18:53:25,944 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-27 18:53:25,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-27 18:53:26,000 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 18:53:26,000 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [614169242] [2019-12-27 18:53:26,000 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-27 18:53:26,001 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-12-27 18:53:26,001 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [915703562] [2019-12-27 18:53:26,001 INFO L132 pAbStrategyModuleMcr]: Constructing automaton for MCR equivalence class. [2019-12-27 18:53:26,003 INFO L197 pAbStrategyModuleMcr]: Started intersection. [2019-12-27 18:53:26,005 INFO L208 pAbStrategyModuleMcr]: Finished intersection with 15 states and 18 transitions. [2019-12-27 18:53:26,005 INFO L219 pAbStrategyModuleMcr]: Constructing interpolant automaton by labelling MCR automaton. [2019-12-27 18:53:26,006 INFO L288 pAbStrategyModuleMcr]: Construction finished. Needed to calculate wp 0 times. [2019-12-27 18:53:26,007 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-12-27 18:53:26,007 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-27 18:53:26,007 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-12-27 18:53:26,008 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-12-27 18:53:26,008 INFO L87 Difference]: Start difference. First operand 30 states and 50 transitions. Second operand 4 states. [2019-12-27 18:53:26,034 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-27 18:53:26,034 INFO L93 Difference]: Finished difference Result 35 states and 54 transitions. [2019-12-27 18:53:26,035 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-12-27 18:53:26,035 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 10 [2019-12-27 18:53:26,035 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-27 18:53:26,036 INFO L225 Difference]: With dead ends: 35 [2019-12-27 18:53:26,036 INFO L226 Difference]: Without dead ends: 31 [2019-12-27 18:53:26,037 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 18:53:26,037 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31 states. [2019-12-27 18:53:26,040 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31 to 30. [2019-12-27 18:53:26,040 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 30 states. [2019-12-27 18:53:26,041 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 47 transitions. [2019-12-27 18:53:26,041 INFO L78 Accepts]: Start accepts. Automaton has 30 states and 47 transitions. Word has length 10 [2019-12-27 18:53:26,042 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-27 18:53:26,042 INFO L462 AbstractCegarLoop]: Abstraction has 30 states and 47 transitions. [2019-12-27 18:53:26,042 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-12-27 18:53:26,042 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 47 transitions. [2019-12-27 18:53:26,043 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2019-12-27 18:53:26,043 INFO L403 BasicCegarLoop]: Found error trace [2019-12-27 18:53:26,043 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-27 18:53:26,043 INFO L410 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-27 18:53:26,043 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-27 18:53:26,044 INFO L82 PathProgramCache]: Analyzing trace with hash -1607961385, now seen corresponding path program 1 times [2019-12-27 18:53:26,044 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-27 18:53:26,044 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1783226209] [2019-12-27 18:53:26,044 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-27 18:53:26,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-27 18:53:26,130 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 18:53:26,131 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1783226209] [2019-12-27 18:53:26,131 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-27 18:53:26,131 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-12-27 18:53:26,132 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [427449620] [2019-12-27 18:53:26,132 INFO L132 pAbStrategyModuleMcr]: Constructing automaton for MCR equivalence class. [2019-12-27 18:53:26,133 INFO L197 pAbStrategyModuleMcr]: Started intersection. [2019-12-27 18:53:26,135 INFO L208 pAbStrategyModuleMcr]: Finished intersection with 17 states and 22 transitions. [2019-12-27 18:53:26,136 INFO L219 pAbStrategyModuleMcr]: Constructing interpolant automaton by labelling MCR automaton. [2019-12-27 18:53:26,187 INFO L288 pAbStrategyModuleMcr]: Construction finished. Needed to calculate wp 2 times. [2019-12-27 18:53:26,188 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-12-27 18:53:26,188 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-27 18:53:26,188 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-12-27 18:53:26,189 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2019-12-27 18:53:26,189 INFO L87 Difference]: Start difference. First operand 30 states and 47 transitions. Second operand 7 states. [2019-12-27 18:53:26,269 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-27 18:53:26,269 INFO L93 Difference]: Finished difference Result 28 states and 41 transitions. [2019-12-27 18:53:26,270 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-12-27 18:53:26,270 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 10 [2019-12-27 18:53:26,270 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-27 18:53:26,271 INFO L225 Difference]: With dead ends: 28 [2019-12-27 18:53:26,271 INFO L226 Difference]: Without dead ends: 16 [2019-12-27 18:53:26,271 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2019-12-27 18:53:26,272 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16 states. [2019-12-27 18:53:26,273 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16 to 16. [2019-12-27 18:53:26,273 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2019-12-27 18:53:26,274 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 19 transitions. [2019-12-27 18:53:26,274 INFO L78 Accepts]: Start accepts. Automaton has 16 states and 19 transitions. Word has length 10 [2019-12-27 18:53:26,274 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-27 18:53:26,275 INFO L462 AbstractCegarLoop]: Abstraction has 16 states and 19 transitions. [2019-12-27 18:53:26,275 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-12-27 18:53:26,275 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 19 transitions. [2019-12-27 18:53:26,275 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2019-12-27 18:53:26,275 INFO L403 BasicCegarLoop]: Found error trace [2019-12-27 18:53:26,276 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-27 18:53:26,276 INFO L410 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-27 18:53:26,276 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-27 18:53:26,276 INFO L82 PathProgramCache]: Analyzing trace with hash 1627425577, now seen corresponding path program 1 times [2019-12-27 18:53:26,277 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-27 18:53:26,277 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [749513723] [2019-12-27 18:53:26,277 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-27 18:53:26,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-27 18:53:26,328 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 18:53:26,328 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [749513723] [2019-12-27 18:53:26,328 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-27 18:53:26,328 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-12-27 18:53:26,329 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [31414255] [2019-12-27 18:53:26,329 INFO L132 pAbStrategyModuleMcr]: Constructing automaton for MCR equivalence class. [2019-12-27 18:53:26,330 INFO L197 pAbStrategyModuleMcr]: Started intersection. [2019-12-27 18:53:26,333 INFO L208 pAbStrategyModuleMcr]: Finished intersection with 12 states and 11 transitions. [2019-12-27 18:53:26,333 INFO L219 pAbStrategyModuleMcr]: Constructing interpolant automaton by labelling MCR automaton. [2019-12-27 18:53:26,333 INFO L288 pAbStrategyModuleMcr]: Construction finished. Needed to calculate wp 0 times. [2019-12-27 18:53:26,333 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-12-27 18:53:26,334 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-27 18:53:26,334 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-12-27 18:53:26,334 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-12-27 18:53:26,334 INFO L87 Difference]: Start difference. First operand 16 states and 19 transitions. Second operand 4 states. [2019-12-27 18:53:26,351 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-27 18:53:26,351 INFO L93 Difference]: Finished difference Result 19 states and 21 transitions. [2019-12-27 18:53:26,351 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-12-27 18:53:26,352 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 11 [2019-12-27 18:53:26,352 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-27 18:53:26,352 INFO L225 Difference]: With dead ends: 19 [2019-12-27 18:53:26,352 INFO L226 Difference]: Without dead ends: 14 [2019-12-27 18:53:26,353 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 18:53:26,353 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14 states. [2019-12-27 18:53:26,354 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14 to 14. [2019-12-27 18:53:26,355 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2019-12-27 18:53:26,355 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 15 transitions. [2019-12-27 18:53:26,355 INFO L78 Accepts]: Start accepts. Automaton has 14 states and 15 transitions. Word has length 11 [2019-12-27 18:53:26,355 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-27 18:53:26,356 INFO L462 AbstractCegarLoop]: Abstraction has 14 states and 15 transitions. [2019-12-27 18:53:26,356 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-12-27 18:53:26,356 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 15 transitions. [2019-12-27 18:53:26,356 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2019-12-27 18:53:26,356 INFO L403 BasicCegarLoop]: Found error trace [2019-12-27 18:53:26,357 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-27 18:53:26,357 INFO L410 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-27 18:53:26,357 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-27 18:53:26,357 INFO L82 PathProgramCache]: Analyzing trace with hash 1633797007, now seen corresponding path program 2 times [2019-12-27 18:53:26,358 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-27 18:53:26,358 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2143593500] [2019-12-27 18:53:26,358 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-27 18:53:26,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-27 18:53:26,408 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 18:53:26,409 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2143593500] [2019-12-27 18:53:26,409 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-27 18:53:26,409 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-12-27 18:53:26,409 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [4052929] [2019-12-27 18:53:26,409 INFO L132 pAbStrategyModuleMcr]: Constructing automaton for MCR equivalence class. [2019-12-27 18:53:26,414 INFO L197 pAbStrategyModuleMcr]: Started intersection. [2019-12-27 18:53:26,416 INFO L208 pAbStrategyModuleMcr]: Finished intersection with 14 states and 15 transitions. [2019-12-27 18:53:26,416 INFO L219 pAbStrategyModuleMcr]: Constructing interpolant automaton by labelling MCR automaton. [2019-12-27 18:53:26,440 INFO L288 pAbStrategyModuleMcr]: Construction finished. Needed to calculate wp 2 times. [2019-12-27 18:53:26,440 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-12-27 18:53:26,440 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-27 18:53:26,440 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-12-27 18:53:26,441 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2019-12-27 18:53:26,441 INFO L87 Difference]: Start difference. First operand 14 states and 15 transitions. Second operand 5 states. [2019-12-27 18:53:26,461 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-27 18:53:26,461 INFO L93 Difference]: Finished difference Result 13 states and 14 transitions. [2019-12-27 18:53:26,461 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-12-27 18:53:26,461 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 11 [2019-12-27 18:53:26,461 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-27 18:53:26,462 INFO L225 Difference]: With dead ends: 13 [2019-12-27 18:53:26,462 INFO L226 Difference]: Without dead ends: 0 [2019-12-27 18:53:26,462 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2019-12-27 18:53:26,462 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-12-27 18:53:26,462 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-12-27 18:53:26,463 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-12-27 18:53:26,463 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-12-27 18:53:26,463 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 11 [2019-12-27 18:53:26,463 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-27 18:53:26,463 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-12-27 18:53:26,463 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-12-27 18:53:26,463 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-12-27 18:53:26,464 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-12-27 18:53:26,467 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 27.12 06:53:26 BasicIcfg [2019-12-27 18:53:26,467 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-12-27 18:53:26,469 INFO L168 Benchmark]: Toolchain (without parser) took 4462.30 ms. Allocated memory was 144.7 MB in the beginning and 246.9 MB in the end (delta: 102.2 MB). Free memory was 101.5 MB in the beginning and 97.6 MB in the end (delta: 3.9 MB). Peak memory consumption was 106.2 MB. Max. memory is 7.1 GB. [2019-12-27 18:53:26,470 INFO L168 Benchmark]: CDTParser took 0.18 ms. Allocated memory is still 144.7 MB. Free memory was 121.0 MB in the beginning and 120.8 MB in the end (delta: 209.9 kB). Peak memory consumption was 209.9 kB. Max. memory is 7.1 GB. [2019-12-27 18:53:26,471 INFO L168 Benchmark]: CACSL2BoogieTranslator took 804.94 ms. Allocated memory was 144.7 MB in the beginning and 201.3 MB in the end (delta: 56.6 MB). Free memory was 101.3 MB in the beginning and 156.5 MB in the end (delta: -55.1 MB). Peak memory consumption was 20.1 MB. Max. memory is 7.1 GB. [2019-12-27 18:53:26,472 INFO L168 Benchmark]: Boogie Procedure Inliner took 81.04 ms. Allocated memory is still 201.3 MB. Free memory was 156.5 MB in the beginning and 154.4 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 7.1 GB. [2019-12-27 18:53:26,473 INFO L168 Benchmark]: Boogie Preprocessor took 59.11 ms. Allocated memory is still 201.3 MB. Free memory was 154.4 MB in the beginning and 152.3 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 7.1 GB. [2019-12-27 18:53:26,474 INFO L168 Benchmark]: RCFGBuilder took 454.92 ms. Allocated memory is still 201.3 MB. Free memory was 152.3 MB in the beginning and 131.9 MB in the end (delta: 20.4 MB). Peak memory consumption was 20.4 MB. Max. memory is 7.1 GB. [2019-12-27 18:53:26,475 INFO L168 Benchmark]: TraceAbstraction took 3053.57 ms. Allocated memory was 201.3 MB in the beginning and 246.9 MB in the end (delta: 45.6 MB). Free memory was 131.2 MB in the beginning and 97.6 MB in the end (delta: 33.6 MB). Peak memory consumption was 79.2 MB. Max. memory is 7.1 GB. [2019-12-27 18:53:26,483 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18 ms. Allocated memory is still 144.7 MB. Free memory was 121.0 MB in the beginning and 120.8 MB in the end (delta: 209.9 kB). Peak memory consumption was 209.9 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 804.94 ms. Allocated memory was 144.7 MB in the beginning and 201.3 MB in the end (delta: 56.6 MB). Free memory was 101.3 MB in the beginning and 156.5 MB in the end (delta: -55.1 MB). Peak memory consumption was 20.1 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 81.04 ms. Allocated memory is still 201.3 MB. Free memory was 156.5 MB in the beginning and 154.4 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 59.11 ms. Allocated memory is still 201.3 MB. Free memory was 154.4 MB in the beginning and 152.3 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 7.1 GB. * RCFGBuilder took 454.92 ms. Allocated memory is still 201.3 MB. Free memory was 152.3 MB in the beginning and 131.9 MB in the end (delta: 20.4 MB). Peak memory consumption was 20.4 MB. Max. memory is 7.1 GB. * TraceAbstraction took 3053.57 ms. Allocated memory was 201.3 MB in the beginning and 246.9 MB in the end (delta: 45.6 MB). Free memory was 131.2 MB in the beginning and 97.6 MB in the end (delta: 33.6 MB). Peak memory consumption was 79.2 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks LbeTime: 1.6s, 64 ProgramPointsBefore, 22 ProgramPointsAfterwards, 55 TransitionsBefore, 17 TransitionsAfterwards, 450 CoEnabledTransitionPairs, 6 FixpointIterations, 15 TrivialSequentialCompositions, 25 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 5 ConcurrentYvCompositions, 0 ChoiceCompositions, 236 VarBasedMoverChecksPositive, 9 VarBasedMoverChecksNegative, 0 SemBasedMoverChecksPositive, 10 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.1s, 0 MoverChecksTotal, 425 CheckedPairsTotal, 45 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, 55 locations, 1 error locations. Result: SAFE, OverallTime: 2.9s, OverallIterations: 6, TraceHistogramMax: 1, AutomataDifference: 0.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 63 SDtfs, 65 SDslu, 83 SDs, 0 SdLazy, 63 SolverSat, 34 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 31 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=54occurred 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, 1 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.4s InterpolantComputationTime, 59 NumberOfCodeBlocks, 59 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 53 ConstructedInterpolants, 0 QuantifiedInterpolants, 1341 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...