/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -s ../../../trunk/examples/settings/automizer/mcr/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-McrAutomaton-WP.epf -i ../../../trunk/examples/svcomp/pthread-wmm/safe026_tso.opt.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c7e336b [2020-10-06 01:08:35,663 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-06 01:08:35,665 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-06 01:08:35,689 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-06 01:08:35,690 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-06 01:08:35,691 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-06 01:08:35,692 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-06 01:08:35,694 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-06 01:08:35,696 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-06 01:08:35,697 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-06 01:08:35,698 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-06 01:08:35,699 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-06 01:08:35,699 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-06 01:08:35,700 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-06 01:08:35,702 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-06 01:08:35,703 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-06 01:08:35,704 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-06 01:08:35,705 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-06 01:08:35,706 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-06 01:08:35,708 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-06 01:08:35,710 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-06 01:08:35,711 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-06 01:08:35,712 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-06 01:08:35,713 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-06 01:08:35,716 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-06 01:08:35,716 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-06 01:08:35,716 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-06 01:08:35,717 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-06 01:08:35,717 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-06 01:08:35,718 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-06 01:08:35,718 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-06 01:08:35,719 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-06 01:08:35,720 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-06 01:08:35,721 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-06 01:08:35,722 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-06 01:08:35,722 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-06 01:08:35,722 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-06 01:08:35,723 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-06 01:08:35,723 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-06 01:08:35,724 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-06 01:08:35,724 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-06 01:08:35,725 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/mcr/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-McrAutomaton-WP.epf [2020-10-06 01:08:35,748 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-06 01:08:35,748 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-06 01:08:35,749 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-06 01:08:35,750 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-06 01:08:35,750 INFO L138 SettingsManager]: * Use SBE=true [2020-10-06 01:08:35,750 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-06 01:08:35,750 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-06 01:08:35,751 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-06 01:08:35,751 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-06 01:08:35,751 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-06 01:08:35,751 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-06 01:08:35,751 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-06 01:08:35,752 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-06 01:08:35,752 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-06 01:08:35,752 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-06 01:08:35,752 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-06 01:08:35,752 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-06 01:08:35,753 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-06 01:08:35,753 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-06 01:08:35,753 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-06 01:08:35,753 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-06 01:08:35,753 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-06 01:08:35,754 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-06 01:08:35,754 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=Craig_NestedInterpolation [2020-10-06 01:08:35,754 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-06 01:08:35,754 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-06 01:08:35,755 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-06 01:08:35,755 INFO L138 SettingsManager]: * Override the interpolant automaton setting of the refinement strategy=true [2020-10-06 01:08:35,755 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=VARIABLE_BASED_MOVER_CHECK [2020-10-06 01:08:35,755 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-06 01:08:35,755 INFO L138 SettingsManager]: * Interpolant automaton=MCR [2020-10-06 01:08:36,079 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-06 01:08:36,098 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-06 01:08:36,103 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-06 01:08:36,105 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-06 01:08:36,107 INFO L275 PluginConnector]: CDTParser initialized [2020-10-06 01:08:36,109 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe026_tso.opt.i [2020-10-06 01:08:36,182 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/be9d17ff3/87ffcc8198344cc5a6a52aeed2f2c4df/FLAG80bd3b8f5 [2020-10-06 01:08:36,737 INFO L306 CDTParser]: Found 1 translation units. [2020-10-06 01:08:36,738 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe026_tso.opt.i [2020-10-06 01:08:36,762 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/be9d17ff3/87ffcc8198344cc5a6a52aeed2f2c4df/FLAG80bd3b8f5 [2020-10-06 01:08:37,011 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/be9d17ff3/87ffcc8198344cc5a6a52aeed2f2c4df [2020-10-06 01:08:37,020 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-06 01:08:37,022 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2020-10-06 01:08:37,023 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-06 01:08:37,023 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-06 01:08:37,027 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-06 01:08:37,028 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.10 01:08:37" (1/1) ... [2020-10-06 01:08:37,031 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2f23de36 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.10 01:08:37, skipping insertion in model container [2020-10-06 01:08:37,031 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.10 01:08:37" (1/1) ... [2020-10-06 01:08:37,038 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-06 01:08:37,099 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-06 01:08:37,613 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-06 01:08:37,628 INFO L203 MainTranslator]: Completed pre-run [2020-10-06 01:08:37,688 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-06 01:08:37,774 INFO L208 MainTranslator]: Completed translation [2020-10-06 01:08:37,774 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.10 01:08:37 WrapperNode [2020-10-06 01:08:37,774 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-06 01:08:37,775 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-10-06 01:08:37,775 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-10-06 01:08:37,776 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-10-06 01:08:37,785 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.10 01:08:37" (1/1) ... [2020-10-06 01:08:37,801 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.10 01:08:37" (1/1) ... [2020-10-06 01:08:37,823 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-10-06 01:08:37,824 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-06 01:08:37,824 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-06 01:08:37,824 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-06 01:08:37,834 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.10 01:08:37" (1/1) ... [2020-10-06 01:08:37,834 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.10 01:08:37" (1/1) ... [2020-10-06 01:08:37,837 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.10 01:08:37" (1/1) ... [2020-10-06 01:08:37,838 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.10 01:08:37" (1/1) ... [2020-10-06 01:08:37,845 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.10 01:08:37" (1/1) ... [2020-10-06 01:08:37,847 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.10 01:08:37" (1/1) ... [2020-10-06 01:08:37,850 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.10 01:08:37" (1/1) ... [2020-10-06 01:08:37,854 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-06 01:08:37,854 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-06 01:08:37,855 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-06 01:08:37,855 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-06 01:08:37,856 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.10 01:08:37" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-06 01:08:37,928 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-06 01:08:37,928 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2020-10-06 01:08:37,928 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-06 01:08:37,928 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-06 01:08:37,929 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2020-10-06 01:08:37,929 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2020-10-06 01:08:37,930 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2020-10-06 01:08:37,930 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2020-10-06 01:08:37,931 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2020-10-06 01:08:37,931 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2020-10-06 01:08:37,931 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2020-10-06 01:08:37,932 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-06 01:08:37,932 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-06 01:08:37,934 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2020-10-06 01:08:38,284 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-06 01:08:38,284 INFO L298 CfgBuilder]: Removed 8 assume(true) statements. [2020-10-06 01:08:38,287 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.10 01:08:38 BoogieIcfgContainer [2020-10-06 01:08:38,287 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-06 01:08:38,289 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-06 01:08:38,289 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-06 01:08:38,292 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-06 01:08:38,292 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.10 01:08:37" (1/3) ... [2020-10-06 01:08:38,293 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@747715ff and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.10 01:08:38, skipping insertion in model container [2020-10-06 01:08:38,294 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.10 01:08:37" (2/3) ... [2020-10-06 01:08:38,294 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@747715ff and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.10 01:08:38, skipping insertion in model container [2020-10-06 01:08:38,294 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.10 01:08:38" (3/3) ... [2020-10-06 01:08:38,296 INFO L109 eAbstractionObserver]: Analyzing ICFG safe026_tso.opt.i [2020-10-06 01:08:38,307 WARN L146 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2020-10-06 01:08:38,308 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-06 01:08:38,315 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-06 01:08:38,316 INFO L340 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2020-10-06 01:08:38,365 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 01:08:38,365 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 01:08:38,366 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 01:08:38,366 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 01:08:38,367 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 01:08:38,367 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 01:08:38,368 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 01:08:38,368 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 01:08:38,368 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 01:08:38,369 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 01:08:38,369 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 01:08:38,369 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 01:08:38,370 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 01:08:38,370 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 01:08:38,371 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 01:08:38,371 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 01:08:38,371 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 01:08:38,372 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 01:08:38,375 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 01:08:38,376 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 01:08:38,376 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 01:08:38,376 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 01:08:38,383 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 01:08:38,384 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 01:08:38,384 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 01:08:38,384 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 01:08:38,387 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 01:08:38,387 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 01:08:38,387 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 01:08:38,388 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 01:08:38,404 INFO L251 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2020-10-06 01:08:38,426 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-10-06 01:08:38,426 INFO L376 AbstractCegarLoop]: Hoare is true [2020-10-06 01:08:38,426 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-06 01:08:38,426 INFO L378 AbstractCegarLoop]: Backedges is MCR [2020-10-06 01:08:38,426 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-06 01:08:38,427 INFO L380 AbstractCegarLoop]: Difference is false [2020-10-06 01:08:38,427 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-06 01:08:38,427 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-06 01:08:38,441 INFO L152 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 76 places, 68 transitions, 151 flow [2020-10-06 01:08:38,444 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 76 places, 68 transitions, 151 flow [2020-10-06 01:08:38,488 INFO L129 PetriNetUnfolder]: 2/65 cut-off events. [2020-10-06 01:08:38,488 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2020-10-06 01:08:38,499 INFO L80 FinitePrefix]: Finished finitePrefix Result has 75 conditions, 65 events. 2/65 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 48 event pairs, 0 based on Foata normal form. 0/62 useless extension candidates. Maximal degree in co-relation 54. Up to 2 conditions per place. [2020-10-06 01:08:38,503 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 76 places, 68 transitions, 151 flow [2020-10-06 01:08:38,527 INFO L129 PetriNetUnfolder]: 2/65 cut-off events. [2020-10-06 01:08:38,528 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2020-10-06 01:08:38,529 INFO L80 FinitePrefix]: Finished finitePrefix Result has 75 conditions, 65 events. 2/65 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 48 event pairs, 0 based on Foata normal form. 0/62 useless extension candidates. Maximal degree in co-relation 54. Up to 2 conditions per place. [2020-10-06 01:08:38,531 INFO L158 etLargeBlockEncoding]: Number of co-enabled transitions 1178 [2020-10-06 01:08:38,532 INFO L182 etLargeBlockEncoding]: Variable Check. [2020-10-06 01:08:39,802 INFO L206 etLargeBlockEncoding]: Checked pairs total: 2133 [2020-10-06 01:08:39,803 INFO L214 etLargeBlockEncoding]: Total number of compositions: 57 [2020-10-06 01:08:39,807 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 30 places, 20 transitions, 55 flow [2020-10-06 01:08:39,828 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 226 states. [2020-10-06 01:08:39,831 INFO L276 IsEmpty]: Start isEmpty. Operand 226 states. [2020-10-06 01:08:39,838 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2020-10-06 01:08:39,839 INFO L414 BasicCegarLoop]: Found error trace [2020-10-06 01:08:39,840 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2020-10-06 01:08:39,840 INFO L427 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-06 01:08:39,845 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-06 01:08:39,846 INFO L82 PathProgramCache]: Analyzing trace with hash -1225676630, now seen corresponding path program 1 times [2020-10-06 01:08:39,868 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-06 01:08:39,869 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [594905518] [2020-10-06 01:08:39,869 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-06 01:08:40,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-06 01:08:40,202 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-06 01:08:40,203 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [594905518] [2020-10-06 01:08:40,204 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-06 01:08:40,205 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2020-10-06 01:08:40,206 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1529522698] [2020-10-06 01:08:40,208 INFO L200 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-06 01:08:40,214 INFO L255 McrAutomatonBuilder]: Started intersection. [2020-10-06 01:08:40,231 INFO L258 McrAutomatonBuilder]: Finished intersection with 9 states and 8 transitions. [2020-10-06 01:08:40,231 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-06 01:08:40,239 INFO L313 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-10-06 01:08:40,240 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-06 01:08:40,240 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-06 01:08:40,256 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-06 01:08:40,257 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-06 01:08:40,260 INFO L87 Difference]: Start difference. First operand 226 states. Second operand 3 states. [2020-10-06 01:08:40,291 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-06 01:08:40,291 INFO L93 Difference]: Finished difference Result 214 states and 593 transitions. [2020-10-06 01:08:40,292 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-06 01:08:40,293 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 8 [2020-10-06 01:08:40,294 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-06 01:08:40,307 INFO L225 Difference]: With dead ends: 214 [2020-10-06 01:08:40,307 INFO L226 Difference]: Without dead ends: 166 [2020-10-06 01:08:40,309 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-06 01:08:40,331 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 166 states. [2020-10-06 01:08:40,362 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 166 to 166. [2020-10-06 01:08:40,363 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 166 states. [2020-10-06 01:08:40,367 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 166 states to 166 states and 441 transitions. [2020-10-06 01:08:40,368 INFO L78 Accepts]: Start accepts. Automaton has 166 states and 441 transitions. Word has length 8 [2020-10-06 01:08:40,369 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-06 01:08:40,370 INFO L479 AbstractCegarLoop]: Abstraction has 166 states and 441 transitions. [2020-10-06 01:08:40,370 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-06 01:08:40,370 INFO L276 IsEmpty]: Start isEmpty. Operand 166 states and 441 transitions. [2020-10-06 01:08:40,371 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-10-06 01:08:40,371 INFO L414 BasicCegarLoop]: Found error trace [2020-10-06 01:08:40,371 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-06 01:08:40,372 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-06 01:08:40,372 INFO L427 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-06 01:08:40,372 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-06 01:08:40,373 INFO L82 PathProgramCache]: Analyzing trace with hash 658710541, now seen corresponding path program 1 times [2020-10-06 01:08:40,378 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-06 01:08:40,378 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [736062191] [2020-10-06 01:08:40,378 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-06 01:08:40,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-06 01:08:40,434 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-06 01:08:40,434 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [736062191] [2020-10-06 01:08:40,434 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-06 01:08:40,435 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-06 01:08:40,435 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1200052817] [2020-10-06 01:08:40,435 INFO L200 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-06 01:08:40,436 INFO L255 McrAutomatonBuilder]: Started intersection. [2020-10-06 01:08:40,438 INFO L258 McrAutomatonBuilder]: Finished intersection with 11 states and 11 transitions. [2020-10-06 01:08:40,438 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-06 01:08:40,455 INFO L313 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-10-06 01:08:40,457 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-06 01:08:40,457 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-06 01:08:40,457 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-06 01:08:40,458 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-06 01:08:40,458 INFO L87 Difference]: Start difference. First operand 166 states and 441 transitions. Second operand 4 states. [2020-10-06 01:08:40,490 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-06 01:08:40,490 INFO L93 Difference]: Finished difference Result 220 states and 567 transitions. [2020-10-06 01:08:40,491 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-06 01:08:40,491 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 9 [2020-10-06 01:08:40,491 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-06 01:08:40,495 INFO L225 Difference]: With dead ends: 220 [2020-10-06 01:08:40,496 INFO L226 Difference]: Without dead ends: 148 [2020-10-06 01:08:40,497 INFO L675 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 [2020-10-06 01:08:40,501 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 148 states. [2020-10-06 01:08:40,514 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 148 to 148. [2020-10-06 01:08:40,514 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 148 states. [2020-10-06 01:08:40,517 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 148 states to 148 states and 377 transitions. [2020-10-06 01:08:40,517 INFO L78 Accepts]: Start accepts. Automaton has 148 states and 377 transitions. Word has length 9 [2020-10-06 01:08:40,517 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-06 01:08:40,518 INFO L479 AbstractCegarLoop]: Abstraction has 148 states and 377 transitions. [2020-10-06 01:08:40,518 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-06 01:08:40,518 INFO L276 IsEmpty]: Start isEmpty. Operand 148 states and 377 transitions. [2020-10-06 01:08:40,519 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-10-06 01:08:40,519 INFO L414 BasicCegarLoop]: Found error trace [2020-10-06 01:08:40,519 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-06 01:08:40,520 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-06 01:08:40,520 INFO L427 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-06 01:08:40,520 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-06 01:08:40,520 INFO L82 PathProgramCache]: Analyzing trace with hash -1054223531, now seen corresponding path program 1 times [2020-10-06 01:08:40,522 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-06 01:08:40,522 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1343329732] [2020-10-06 01:08:40,522 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-06 01:08:40,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-06 01:08:40,627 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-06 01:08:40,628 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1343329732] [2020-10-06 01:08:40,628 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-06 01:08:40,629 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-06 01:08:40,629 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [2122434655] [2020-10-06 01:08:40,629 INFO L200 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-06 01:08:40,630 INFO L255 McrAutomatonBuilder]: Started intersection. [2020-10-06 01:08:40,632 INFO L258 McrAutomatonBuilder]: Finished intersection with 15 states and 18 transitions. [2020-10-06 01:08:40,632 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-06 01:08:40,656 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-10-06 01:08:40,685 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-10-06 01:08:40,703 INFO L313 McrAutomatonBuilder]: Construction finished. MCR generated 1 new interpolants: [1606#(not (= 3 ~__unbuffered_cnt~0))] [2020-10-06 01:08:40,704 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-06 01:08:40,704 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-06 01:08:40,704 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-06 01:08:40,705 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-06 01:08:40,705 INFO L87 Difference]: Start difference. First operand 148 states and 377 transitions. Second operand 5 states. [2020-10-06 01:08:40,770 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-06 01:08:40,770 INFO L93 Difference]: Finished difference Result 135 states and 311 transitions. [2020-10-06 01:08:40,771 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-06 01:08:40,771 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 10 [2020-10-06 01:08:40,771 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-06 01:08:40,772 INFO L225 Difference]: With dead ends: 135 [2020-10-06 01:08:40,773 INFO L226 Difference]: Without dead ends: 93 [2020-10-06 01:08:40,773 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-10-06 01:08:40,774 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 93 states. [2020-10-06 01:08:40,779 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 93 to 93. [2020-10-06 01:08:40,780 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 93 states. [2020-10-06 01:08:40,781 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 93 states to 93 states and 192 transitions. [2020-10-06 01:08:40,781 INFO L78 Accepts]: Start accepts. Automaton has 93 states and 192 transitions. Word has length 10 [2020-10-06 01:08:40,781 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-06 01:08:40,781 INFO L479 AbstractCegarLoop]: Abstraction has 93 states and 192 transitions. [2020-10-06 01:08:40,781 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-06 01:08:40,781 INFO L276 IsEmpty]: Start isEmpty. Operand 93 states and 192 transitions. [2020-10-06 01:08:40,783 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-10-06 01:08:40,783 INFO L414 BasicCegarLoop]: Found error trace [2020-10-06 01:08:40,783 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-06 01:08:40,783 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-06 01:08:40,783 INFO L427 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-06 01:08:40,784 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-06 01:08:40,784 INFO L82 PathProgramCache]: Analyzing trace with hash -1269858217, now seen corresponding path program 1 times [2020-10-06 01:08:40,785 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-06 01:08:40,785 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1330408033] [2020-10-06 01:08:40,785 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-06 01:08:40,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-06 01:08:40,882 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-06 01:08:40,882 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1330408033] [2020-10-06 01:08:40,882 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-06 01:08:40,883 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-06 01:08:40,883 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1574241978] [2020-10-06 01:08:40,883 INFO L200 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-06 01:08:40,884 INFO L255 McrAutomatonBuilder]: Started intersection. [2020-10-06 01:08:40,887 INFO L258 McrAutomatonBuilder]: Finished intersection with 20 states and 25 transitions. [2020-10-06 01:08:40,887 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-06 01:08:40,925 INFO L313 McrAutomatonBuilder]: Construction finished. MCR generated 1 new interpolants: [1938#(<= ~__unbuffered_cnt~0 0)] [2020-10-06 01:08:40,925 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-06 01:08:40,926 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-06 01:08:40,926 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-06 01:08:40,926 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-10-06 01:08:40,926 INFO L87 Difference]: Start difference. First operand 93 states and 192 transitions. Second operand 7 states. [2020-10-06 01:08:40,975 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-06 01:08:40,975 INFO L93 Difference]: Finished difference Result 87 states and 178 transitions. [2020-10-06 01:08:40,976 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-06 01:08:40,976 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 13 [2020-10-06 01:08:40,976 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-06 01:08:40,977 INFO L225 Difference]: With dead ends: 87 [2020-10-06 01:08:40,977 INFO L226 Difference]: Without dead ends: 78 [2020-10-06 01:08:40,978 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=35, Unknown=0, NotChecked=0, Total=56 [2020-10-06 01:08:40,978 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 78 states. [2020-10-06 01:08:40,982 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 78 to 78. [2020-10-06 01:08:40,982 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 78 states. [2020-10-06 01:08:40,983 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 78 states to 78 states and 162 transitions. [2020-10-06 01:08:40,983 INFO L78 Accepts]: Start accepts. Automaton has 78 states and 162 transitions. Word has length 13 [2020-10-06 01:08:40,983 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-06 01:08:40,983 INFO L479 AbstractCegarLoop]: Abstraction has 78 states and 162 transitions. [2020-10-06 01:08:40,983 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-06 01:08:40,984 INFO L276 IsEmpty]: Start isEmpty. Operand 78 states and 162 transitions. [2020-10-06 01:08:40,985 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2020-10-06 01:08:40,985 INFO L414 BasicCegarLoop]: Found error trace [2020-10-06 01:08:40,985 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-06 01:08:40,985 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-06 01:08:40,985 INFO L427 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-06 01:08:40,986 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-06 01:08:40,986 INFO L82 PathProgramCache]: Analyzing trace with hash -1906464189, now seen corresponding path program 1 times [2020-10-06 01:08:40,987 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-06 01:08:40,987 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [559919875] [2020-10-06 01:08:40,988 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-06 01:08:41,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-06 01:08:41,025 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-06 01:08:41,025 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [559919875] [2020-10-06 01:08:41,026 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-06 01:08:41,026 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-06 01:08:41,026 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [478817152] [2020-10-06 01:08:41,026 INFO L200 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-06 01:08:41,028 INFO L255 McrAutomatonBuilder]: Started intersection. [2020-10-06 01:08:41,034 INFO L258 McrAutomatonBuilder]: Finished intersection with 41 states and 66 transitions. [2020-10-06 01:08:41,034 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-06 01:08:41,097 INFO L313 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-10-06 01:08:41,097 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-06 01:08:41,098 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-06 01:08:41,098 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-06 01:08:41,098 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-06 01:08:41,098 INFO L87 Difference]: Start difference. First operand 78 states and 162 transitions. Second operand 4 states. [2020-10-06 01:08:41,115 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-06 01:08:41,115 INFO L93 Difference]: Finished difference Result 91 states and 183 transitions. [2020-10-06 01:08:41,115 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-06 01:08:41,116 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 16 [2020-10-06 01:08:41,116 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-06 01:08:41,116 INFO L225 Difference]: With dead ends: 91 [2020-10-06 01:08:41,117 INFO L226 Difference]: Without dead ends: 33 [2020-10-06 01:08:41,117 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-06 01:08:41,118 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33 states. [2020-10-06 01:08:41,119 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33 to 33. [2020-10-06 01:08:41,119 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 33 states. [2020-10-06 01:08:41,120 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 33 states and 51 transitions. [2020-10-06 01:08:41,120 INFO L78 Accepts]: Start accepts. Automaton has 33 states and 51 transitions. Word has length 16 [2020-10-06 01:08:41,120 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-06 01:08:41,120 INFO L479 AbstractCegarLoop]: Abstraction has 33 states and 51 transitions. [2020-10-06 01:08:41,120 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-06 01:08:41,121 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 51 transitions. [2020-10-06 01:08:41,121 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2020-10-06 01:08:41,121 INFO L414 BasicCegarLoop]: Found error trace [2020-10-06 01:08:41,121 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-06 01:08:41,122 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-06 01:08:41,122 INFO L427 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-06 01:08:41,122 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-06 01:08:41,122 INFO L82 PathProgramCache]: Analyzing trace with hash -867586631, now seen corresponding path program 2 times [2020-10-06 01:08:41,124 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-06 01:08:41,124 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [441396338] [2020-10-06 01:08:41,125 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-06 01:08:41,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-06 01:08:41,153 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-06 01:08:41,154 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [441396338] [2020-10-06 01:08:41,154 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-06 01:08:41,154 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-06 01:08:41,154 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [688095000] [2020-10-06 01:08:41,155 INFO L200 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-06 01:08:41,180 INFO L255 McrAutomatonBuilder]: Started intersection. [2020-10-06 01:08:41,186 INFO L258 McrAutomatonBuilder]: Finished intersection with 25 states and 32 transitions. [2020-10-06 01:08:41,186 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-06 01:08:41,191 INFO L313 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-10-06 01:08:41,191 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-06 01:08:41,192 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-06 01:08:41,192 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-06 01:08:41,192 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-06 01:08:41,192 INFO L87 Difference]: Start difference. First operand 33 states and 51 transitions. Second operand 3 states. [2020-10-06 01:08:41,198 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-06 01:08:41,198 INFO L93 Difference]: Finished difference Result 32 states and 50 transitions. [2020-10-06 01:08:41,199 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-06 01:08:41,199 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 16 [2020-10-06 01:08:41,199 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-06 01:08:41,199 INFO L225 Difference]: With dead ends: 32 [2020-10-06 01:08:41,200 INFO L226 Difference]: Without dead ends: 0 [2020-10-06 01:08:41,200 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-06 01:08:41,200 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-10-06 01:08:41,200 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-10-06 01:08:41,201 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-10-06 01:08:41,201 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-10-06 01:08:41,201 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 16 [2020-10-06 01:08:41,201 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-06 01:08:41,201 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-06 01:08:41,201 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-06 01:08:41,202 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-10-06 01:08:41,202 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-10-06 01:08:41,202 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-06 01:08:41,206 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 06.10 01:08:41 BasicIcfg [2020-10-06 01:08:41,206 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-06 01:08:41,209 INFO L168 Benchmark]: Toolchain (without parser) took 4186.21 ms. Allocated memory was 145.8 MB in the beginning and 250.1 MB in the end (delta: 104.3 MB). Free memory was 100.5 MB in the beginning and 209.4 MB in the end (delta: -109.0 MB). There was no memory consumed. Max. memory is 7.1 GB. [2020-10-06 01:08:41,210 INFO L168 Benchmark]: CDTParser took 0.23 ms. Allocated memory is still 145.8 MB. Free memory was 120.4 MB in the beginning and 120.2 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2020-10-06 01:08:41,211 INFO L168 Benchmark]: CACSL2BoogieTranslator took 751.62 ms. Allocated memory was 145.8 MB in the beginning and 201.9 MB in the end (delta: 56.1 MB). Free memory was 100.2 MB in the beginning and 159.3 MB in the end (delta: -59.1 MB). Peak memory consumption was 23.3 MB. Max. memory is 7.1 GB. [2020-10-06 01:08:41,212 INFO L168 Benchmark]: Boogie Procedure Inliner took 48.46 ms. Allocated memory is still 201.9 MB. Free memory was 159.3 MB in the beginning and 157.3 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 7.1 GB. [2020-10-06 01:08:41,213 INFO L168 Benchmark]: Boogie Preprocessor took 30.10 ms. Allocated memory is still 201.9 MB. Free memory was 157.3 MB in the beginning and 156.0 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 7.1 GB. [2020-10-06 01:08:41,213 INFO L168 Benchmark]: RCFGBuilder took 432.89 ms. Allocated memory is still 201.9 MB. Free memory was 156.0 MB in the beginning and 133.7 MB in the end (delta: 22.2 MB). Peak memory consumption was 22.2 MB. Max. memory is 7.1 GB. [2020-10-06 01:08:41,214 INFO L168 Benchmark]: TraceAbstraction took 2917.83 ms. Allocated memory was 201.9 MB in the beginning and 250.1 MB in the end (delta: 48.2 MB). Free memory was 133.1 MB in the beginning and 209.4 MB in the end (delta: -76.4 MB). There was no memory consumed. Max. memory is 7.1 GB. [2020-10-06 01:08:41,218 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23 ms. Allocated memory is still 145.8 MB. Free memory was 120.4 MB in the beginning and 120.2 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 751.62 ms. Allocated memory was 145.8 MB in the beginning and 201.9 MB in the end (delta: 56.1 MB). Free memory was 100.2 MB in the beginning and 159.3 MB in the end (delta: -59.1 MB). Peak memory consumption was 23.3 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 48.46 ms. Allocated memory is still 201.9 MB. Free memory was 159.3 MB in the beginning and 157.3 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 30.10 ms. Allocated memory is still 201.9 MB. Free memory was 157.3 MB in the beginning and 156.0 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 7.1 GB. * RCFGBuilder took 432.89 ms. Allocated memory is still 201.9 MB. Free memory was 156.0 MB in the beginning and 133.7 MB in the end (delta: 22.2 MB). Peak memory consumption was 22.2 MB. Max. memory is 7.1 GB. * TraceAbstraction took 2917.83 ms. Allocated memory was 201.9 MB in the beginning and 250.1 MB in the end (delta: 48.2 MB). Free memory was 133.1 MB in the beginning and 209.4 MB in the end (delta: -76.4 MB). There was no memory consumed. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks LbeTime: 1.3s, 76 ProgramPointsBefore, 30 ProgramPointsAfterwards, 68 TransitionsBefore, 20 TransitionsAfterwards, 1178 CoEnabledTransitionPairs, 7 FixpointIterations, 13 TrivialSequentialCompositions, 40 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 4 ConcurrentYvCompositions, 2 ChoiceCompositions, 583 VarBasedMoverChecksPositive, 21 VarBasedMoverChecksNegative, 0 SemBasedMoverChecksPositive, 0 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.0s, 0 MoverChecksTotal, 2133 CheckedPairsTotal, 57 TotalNumberOfCompositions - PositiveResult [Line: 7]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 67 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 2.7s, OverallIterations: 6, TraceHistogramMax: 1, AutomataDifference: 0.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 1.4s, HoareTripleCheckerStatistics: 110 SDtfs, 115 SDslu, 142 SDs, 0 SdLazy, 73 SolverSat, 23 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 56 GetRequests, 35 SyntacticMatches, 2 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=226occurred 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, 0.3s InterpolantComputationTime, 72 NumberOfCodeBlocks, 72 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 66 ConstructedInterpolants, 0 QuantifiedInterpolants, 2130 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, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...