/usr/bin/java -Xmx16000000000 -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/VMCAI2021_PN.epf -i ../../../trunk/examples/svcomp/pthread-wmm/safe018_pso.opt.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-11af1e5 [2020-10-11 18:38:20,655 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-11 18:38:20,658 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-11 18:38:20,680 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-11 18:38:20,681 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-11 18:38:20,682 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-11 18:38:20,683 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-11 18:38:20,684 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-11 18:38:20,686 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-11 18:38:20,687 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-11 18:38:20,687 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-11 18:38:20,689 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-11 18:38:20,689 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-11 18:38:20,690 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-11 18:38:20,691 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-11 18:38:20,692 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-11 18:38:20,692 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-11 18:38:20,693 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-11 18:38:20,695 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-11 18:38:20,696 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-11 18:38:20,698 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-11 18:38:20,699 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-11 18:38:20,700 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-11 18:38:20,700 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-11 18:38:20,703 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-10-11 18:38:20,705 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-11 18:38:20,706 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-11 18:38:20,707 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-11 18:38:20,707 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-11 18:38:20,708 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-11 18:38:20,709 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-11 18:38:20,709 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-11 18:38:20,709 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-11 18:38:20,710 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-11 18:38:20,711 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-11 18:38:20,711 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-11 18:38:20,712 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/VMCAI2021_PN.epf [2020-10-11 18:38:20,733 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-11 18:38:20,733 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-11 18:38:20,734 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-11 18:38:20,734 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-11 18:38:20,735 INFO L138 SettingsManager]: * Use SBE=true [2020-10-11 18:38:20,735 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-11 18:38:20,735 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-11 18:38:20,735 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-11 18:38:20,735 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-11 18:38:20,736 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-11 18:38:20,736 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-11 18:38:20,736 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-11 18:38:20,736 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-11 18:38:20,736 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-11 18:38:20,737 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-11 18:38:20,737 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-11 18:38:20,737 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-11 18:38:20,737 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-11 18:38:20,737 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-11 18:38:20,738 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-11 18:38:20,738 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-11 18:38:20,738 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-11 18:38:20,738 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-11 18:38:20,738 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-11 18:38:20,739 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-11 18:38:20,739 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-11 18:38:20,739 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-11 18:38:20,739 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2020-10-11 18:38:20,739 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2020-10-11 18:38:20,740 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-10-11 18:38:21,028 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-11 18:38:21,043 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-11 18:38:21,046 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-11 18:38:21,047 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-11 18:38:21,048 INFO L275 PluginConnector]: CDTParser initialized [2020-10-11 18:38:21,048 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe018_pso.opt.i [2020-10-11 18:38:21,105 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/19e5fdad3/14e56a6c54c0497480998c7059d77a5c/FLAG595102b55 [2020-10-11 18:38:21,602 INFO L306 CDTParser]: Found 1 translation units. [2020-10-11 18:38:21,602 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe018_pso.opt.i [2020-10-11 18:38:21,616 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/19e5fdad3/14e56a6c54c0497480998c7059d77a5c/FLAG595102b55 [2020-10-11 18:38:21,907 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/19e5fdad3/14e56a6c54c0497480998c7059d77a5c [2020-10-11 18:38:21,915 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-11 18:38:21,916 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2020-10-11 18:38:21,917 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-11 18:38:21,918 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-11 18:38:21,921 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-11 18:38:21,922 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 06:38:21" (1/1) ... [2020-10-11 18:38:21,925 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2a54700b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 06:38:21, skipping insertion in model container [2020-10-11 18:38:21,925 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 06:38:21" (1/1) ... [2020-10-11 18:38:21,933 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-11 18:38:21,988 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-11 18:38:22,452 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-11 18:38:22,463 INFO L203 MainTranslator]: Completed pre-run [2020-10-11 18:38:22,504 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-11 18:38:22,587 INFO L208 MainTranslator]: Completed translation [2020-10-11 18:38:22,587 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 06:38:22 WrapperNode [2020-10-11 18:38:22,587 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-11 18:38:22,588 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-10-11 18:38:22,588 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-10-11 18:38:22,588 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-10-11 18:38:22,597 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 06:38:22" (1/1) ... [2020-10-11 18:38:22,612 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 06:38:22" (1/1) ... [2020-10-11 18:38:22,634 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-10-11 18:38:22,635 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-11 18:38:22,635 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-11 18:38:22,635 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-11 18:38:22,644 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 06:38:22" (1/1) ... [2020-10-11 18:38:22,644 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 06:38:22" (1/1) ... [2020-10-11 18:38:22,647 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 06:38:22" (1/1) ... [2020-10-11 18:38:22,647 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 06:38:22" (1/1) ... [2020-10-11 18:38:22,653 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 06:38:22" (1/1) ... [2020-10-11 18:38:22,655 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 06:38:22" (1/1) ... [2020-10-11 18:38:22,657 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 06:38:22" (1/1) ... [2020-10-11 18:38:22,660 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-11 18:38:22,661 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-11 18:38:22,661 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-11 18:38:22,661 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-11 18:38:22,662 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 06:38:22" (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 [2020-10-11 18:38:22,727 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-11 18:38:22,727 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2020-10-11 18:38:22,727 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-11 18:38:22,727 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-11 18:38:22,727 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2020-10-11 18:38:22,728 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2020-10-11 18:38:22,728 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2020-10-11 18:38:22,728 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2020-10-11 18:38:22,728 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2020-10-11 18:38:22,728 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2020-10-11 18:38:22,729 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2020-10-11 18:38:22,729 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-11 18:38:22,729 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-11 18:38:22,730 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2020-10-11 18:38:23,040 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-11 18:38:23,040 INFO L298 CfgBuilder]: Removed 8 assume(true) statements. [2020-10-11 18:38:23,042 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 06:38:23 BoogieIcfgContainer [2020-10-11 18:38:23,042 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-11 18:38:23,043 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-11 18:38:23,044 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-11 18:38:23,047 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-11 18:38:23,047 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 11.10 06:38:21" (1/3) ... [2020-10-11 18:38:23,048 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@9e13698 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.10 06:38:23, skipping insertion in model container [2020-10-11 18:38:23,048 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 06:38:22" (2/3) ... [2020-10-11 18:38:23,048 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@9e13698 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.10 06:38:23, skipping insertion in model container [2020-10-11 18:38:23,048 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 06:38:23" (3/3) ... [2020-10-11 18:38:23,050 INFO L111 eAbstractionObserver]: Analyzing ICFG safe018_pso.opt.i [2020-10-11 18:38:23,061 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-10-11 18:38:23,076 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-11 18:38:23,077 INFO L348 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2020-10-11 18:38:23,104 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:38:23,104 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:38:23,105 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:38:23,105 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:38:23,105 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:38:23,105 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:38:23,106 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:38:23,106 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:38:23,106 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:38:23,107 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:38:23,107 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:38:23,107 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:38:23,108 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:38:23,108 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:38:23,108 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:38:23,108 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:38:23,109 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:38:23,109 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:38:23,112 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:38:23,113 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:38:23,113 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:38:23,113 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:38:23,119 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:38:23,119 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:38:23,119 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:38:23,120 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:38:23,122 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:38:23,122 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:38:23,122 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:38:23,122 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:38:23,139 INFO L253 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2020-10-11 18:38:23,160 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-11 18:38:23,160 INFO L378 AbstractCegarLoop]: Hoare is false [2020-10-11 18:38:23,160 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-10-11 18:38:23,160 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-11 18:38:23,161 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-11 18:38:23,161 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-11 18:38:23,161 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-11 18:38:23,162 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-11 18:38:23,175 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 77 places, 69 transitions, 153 flow [2020-10-11 18:38:23,216 INFO L129 PetriNetUnfolder]: 2/66 cut-off events. [2020-10-11 18:38:23,216 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2020-10-11 18:38:23,221 INFO L80 FinitePrefix]: Finished finitePrefix Result has 76 conditions, 66 events. 2/66 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 45 event pairs, 0 based on Foata normal form. 0/63 useless extension candidates. Maximal degree in co-relation 54. Up to 2 conditions per place. [2020-10-11 18:38:23,221 INFO L82 GeneralOperation]: Start removeDead. Operand has 77 places, 69 transitions, 153 flow [2020-10-11 18:38:23,227 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 64 places, 55 transitions, 119 flow [2020-10-11 18:38:23,245 INFO L129 PetriNetUnfolder]: 1/54 cut-off events. [2020-10-11 18:38:23,246 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2020-10-11 18:38:23,246 INFO L247 CegarLoopForPetriNet]: Found error trace [2020-10-11 18:38:23,247 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-11 18:38:23,247 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-11 18:38:23,253 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-11 18:38:23,253 INFO L82 PathProgramCache]: Analyzing trace with hash 1246835585, now seen corresponding path program 1 times [2020-10-11 18:38:23,263 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-11 18:38:23,263 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [583755264] [2020-10-11 18:38:23,264 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-11 18:38:23,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-11 18:38:23,671 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-11 18:38:23,671 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [583755264] [2020-10-11 18:38:23,672 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-11 18:38:23,673 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-11 18:38:23,674 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1806202493] [2020-10-11 18:38:23,684 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-11 18:38:23,684 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-11 18:38:23,698 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-11 18:38:23,701 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-10-11 18:38:23,905 INFO L506 CegarLoopForPetriNet]: Number of universal loopers: 59 out of 69 [2020-10-11 18:38:23,907 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 64 places, 55 transitions, 119 flow. Second operand 6 states. [2020-10-11 18:38:23,908 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2020-10-11 18:38:23,908 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 59 of 69 [2020-10-11 18:38:23,909 INFO L71 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2020-10-11 18:38:24,067 INFO L129 PetriNetUnfolder]: 3/77 cut-off events. [2020-10-11 18:38:24,068 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2020-10-11 18:38:24,069 INFO L80 FinitePrefix]: Finished finitePrefix Result has 107 conditions, 77 events. 3/77 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 120 event pairs, 0 based on Foata normal form. 4/80 useless extension candidates. Maximal degree in co-relation 82. Up to 7 conditions per place. [2020-10-11 18:38:24,070 INFO L132 encePairwiseOnDemand]: 62/69 looper letters, 6 selfloop transitions, 2 changer transitions 11/64 dead transitions. [2020-10-11 18:38:24,070 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 72 places, 64 transitions, 173 flow [2020-10-11 18:38:24,071 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-11 18:38:24,074 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2020-10-11 18:38:24,083 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 553 transitions. [2020-10-11 18:38:24,087 INFO L551 CegarLoopForPetriNet]: DFA transition density 0.8904991948470209 [2020-10-11 18:38:24,088 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 553 transitions. [2020-10-11 18:38:24,088 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 553 transitions. [2020-10-11 18:38:24,094 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-10-11 18:38:24,097 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 553 transitions. [2020-10-11 18:38:24,102 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 10 states. [2020-10-11 18:38:24,111 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result 10 states. [2020-10-11 18:38:24,111 INFO L81 ComplementDD]: Finished complementDD. Result 10 states. [2020-10-11 18:38:24,113 INFO L185 Difference]: Start difference. First operand has 64 places, 55 transitions, 119 flow. Second operand 9 states and 553 transitions. [2020-10-11 18:38:24,114 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 72 places, 64 transitions, 173 flow [2020-10-11 18:38:24,118 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 69 places, 64 transitions, 170 flow, removed 0 selfloop flow, removed 3 redundant places. [2020-10-11 18:38:24,123 INFO L241 Difference]: Finished difference. Result has 76 places, 53 transitions, 132 flow [2020-10-11 18:38:24,125 INFO L325 CegarLoopForPetriNet]: {PETRI_ALPHABET=69, PETRI_DIFFERENCE_MINUEND_FLOW=114, PETRI_DIFFERENCE_MINUEND_PLACES=61, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=54, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=52, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=132, PETRI_PLACES=76, PETRI_TRANSITIONS=53} [2020-10-11 18:38:24,126 INFO L341 CegarLoopForPetriNet]: 64 programPoint places, 12 predicate places. [2020-10-11 18:38:24,126 INFO L481 AbstractCegarLoop]: Abstraction has has 76 places, 53 transitions, 132 flow [2020-10-11 18:38:24,127 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-11 18:38:24,127 INFO L247 CegarLoopForPetriNet]: Found error trace [2020-10-11 18:38:24,127 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-11 18:38:24,127 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-11 18:38:24,128 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-11 18:38:24,128 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-11 18:38:24,128 INFO L82 PathProgramCache]: Analyzing trace with hash -878880638, now seen corresponding path program 1 times [2020-10-11 18:38:24,128 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-11 18:38:24,128 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1503314698] [2020-10-11 18:38:24,129 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-11 18:38:24,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-11 18:38:24,448 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-11 18:38:24,449 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1503314698] [2020-10-11 18:38:24,449 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-11 18:38:24,449 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-11 18:38:24,449 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [642645172] [2020-10-11 18:38:24,451 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-11 18:38:24,452 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-11 18:38:24,452 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-11 18:38:24,452 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-10-11 18:38:24,600 INFO L506 CegarLoopForPetriNet]: Number of universal loopers: 59 out of 69 [2020-10-11 18:38:24,600 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 76 places, 53 transitions, 132 flow. Second operand 6 states. [2020-10-11 18:38:24,600 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2020-10-11 18:38:24,601 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 59 of 69 [2020-10-11 18:38:24,601 INFO L71 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2020-10-11 18:38:24,712 INFO L129 PetriNetUnfolder]: 3/76 cut-off events. [2020-10-11 18:38:24,712 INFO L130 PetriNetUnfolder]: For 16/16 co-relation queries the response was YES. [2020-10-11 18:38:24,713 INFO L80 FinitePrefix]: Finished finitePrefix Result has 130 conditions, 76 events. 3/76 cut-off events. For 16/16 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 117 event pairs, 0 based on Foata normal form. 2/78 useless extension candidates. Maximal degree in co-relation 115. Up to 7 conditions per place. [2020-10-11 18:38:24,713 INFO L132 encePairwiseOnDemand]: 63/69 looper letters, 6 selfloop transitions, 2 changer transitions 10/63 dead transitions. [2020-10-11 18:38:24,714 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 77 places, 63 transitions, 206 flow [2020-10-11 18:38:24,714 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-11 18:38:24,714 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2020-10-11 18:38:24,716 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 551 transitions. [2020-10-11 18:38:24,717 INFO L551 CegarLoopForPetriNet]: DFA transition density 0.8872785829307569 [2020-10-11 18:38:24,718 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 551 transitions. [2020-10-11 18:38:24,718 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 551 transitions. [2020-10-11 18:38:24,718 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-10-11 18:38:24,719 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 551 transitions. [2020-10-11 18:38:24,720 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 10 states. [2020-10-11 18:38:24,722 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result 10 states. [2020-10-11 18:38:24,723 INFO L81 ComplementDD]: Finished complementDD. Result 10 states. [2020-10-11 18:38:24,723 INFO L185 Difference]: Start difference. First operand has 76 places, 53 transitions, 132 flow. Second operand 9 states and 551 transitions. [2020-10-11 18:38:24,723 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 77 places, 63 transitions, 206 flow [2020-10-11 18:38:24,725 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 69 places, 63 transitions, 174 flow, removed 14 selfloop flow, removed 8 redundant places. [2020-10-11 18:38:24,728 INFO L241 Difference]: Finished difference. Result has 76 places, 53 transitions, 136 flow [2020-10-11 18:38:24,728 INFO L325 CegarLoopForPetriNet]: {PETRI_ALPHABET=69, PETRI_DIFFERENCE_MINUEND_FLOW=116, PETRI_DIFFERENCE_MINUEND_PLACES=61, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=53, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=51, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=136, PETRI_PLACES=76, PETRI_TRANSITIONS=53} [2020-10-11 18:38:24,729 INFO L341 CegarLoopForPetriNet]: 64 programPoint places, 12 predicate places. [2020-10-11 18:38:24,729 INFO L481 AbstractCegarLoop]: Abstraction has has 76 places, 53 transitions, 136 flow [2020-10-11 18:38:24,729 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-11 18:38:24,729 INFO L247 CegarLoopForPetriNet]: Found error trace [2020-10-11 18:38:24,729 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-11 18:38:24,730 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-11 18:38:24,730 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-11 18:38:24,730 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-11 18:38:24,730 INFO L82 PathProgramCache]: Analyzing trace with hash -1976890141, now seen corresponding path program 1 times [2020-10-11 18:38:24,731 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-11 18:38:24,731 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1808478306] [2020-10-11 18:38:24,731 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-11 18:38:24,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-11 18:38:24,840 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-11 18:38:24,840 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1808478306] [2020-10-11 18:38:24,840 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-11 18:38:24,841 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-10-11 18:38:24,841 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2142186938] [2020-10-11 18:38:24,841 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-11 18:38:24,841 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-11 18:38:24,842 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-11 18:38:24,842 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2020-10-11 18:38:25,100 INFO L506 CegarLoopForPetriNet]: Number of universal loopers: 57 out of 69 [2020-10-11 18:38:25,100 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 76 places, 53 transitions, 136 flow. Second operand 7 states. [2020-10-11 18:38:25,101 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2020-10-11 18:38:25,101 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 57 of 69 [2020-10-11 18:38:25,101 INFO L71 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2020-10-11 18:38:25,285 INFO L129 PetriNetUnfolder]: 4/74 cut-off events. [2020-10-11 18:38:25,285 INFO L130 PetriNetUnfolder]: For 23/30 co-relation queries the response was YES. [2020-10-11 18:38:25,286 INFO L80 FinitePrefix]: Finished finitePrefix Result has 141 conditions, 74 events. 4/74 cut-off events. For 23/30 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 126 event pairs, 0 based on Foata normal form. 2/76 useless extension candidates. Maximal degree in co-relation 125. Up to 7 conditions per place. [2020-10-11 18:38:25,288 INFO L132 encePairwiseOnDemand]: 61/69 looper letters, 6 selfloop transitions, 4 changer transitions 12/65 dead transitions. [2020-10-11 18:38:25,288 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 79 places, 65 transitions, 231 flow [2020-10-11 18:38:25,289 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-11 18:38:25,289 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2020-10-11 18:38:25,291 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 594 transitions. [2020-10-11 18:38:25,292 INFO L551 CegarLoopForPetriNet]: DFA transition density 0.8608695652173913 [2020-10-11 18:38:25,293 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 594 transitions. [2020-10-11 18:38:25,293 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 594 transitions. [2020-10-11 18:38:25,294 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-10-11 18:38:25,294 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 594 transitions. [2020-10-11 18:38:25,295 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 11 states. [2020-10-11 18:38:25,298 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result 11 states. [2020-10-11 18:38:25,298 INFO L81 ComplementDD]: Finished complementDD. Result 11 states. [2020-10-11 18:38:25,298 INFO L185 Difference]: Start difference. First operand has 76 places, 53 transitions, 136 flow. Second operand 10 states and 594 transitions. [2020-10-11 18:38:25,298 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 79 places, 65 transitions, 231 flow [2020-10-11 18:38:25,301 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 71 places, 65 transitions, 197 flow, removed 14 selfloop flow, removed 8 redundant places. [2020-10-11 18:38:25,304 INFO L241 Difference]: Finished difference. Result has 79 places, 53 transitions, 150 flow [2020-10-11 18:38:25,305 INFO L325 CegarLoopForPetriNet]: {PETRI_ALPHABET=69, PETRI_DIFFERENCE_MINUEND_FLOW=120, PETRI_DIFFERENCE_MINUEND_PLACES=62, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=53, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=49, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=150, PETRI_PLACES=79, PETRI_TRANSITIONS=53} [2020-10-11 18:38:25,305 INFO L341 CegarLoopForPetriNet]: 64 programPoint places, 15 predicate places. [2020-10-11 18:38:25,305 INFO L481 AbstractCegarLoop]: Abstraction has has 79 places, 53 transitions, 150 flow [2020-10-11 18:38:25,305 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-11 18:38:25,306 INFO L247 CegarLoopForPetriNet]: Found error trace [2020-10-11 18:38:25,306 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-11 18:38:25,306 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-11 18:38:25,307 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-11 18:38:25,307 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-11 18:38:25,307 INFO L82 PathProgramCache]: Analyzing trace with hash 521713636, now seen corresponding path program 1 times [2020-10-11 18:38:25,307 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-11 18:38:25,308 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [578292] [2020-10-11 18:38:25,308 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-11 18:38:25,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-11 18:38:25,497 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-11 18:38:25,498 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [578292] [2020-10-11 18:38:25,499 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-11 18:38:25,499 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-10-11 18:38:25,500 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1442329875] [2020-10-11 18:38:25,500 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-11 18:38:25,501 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-11 18:38:25,503 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-11 18:38:25,504 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2020-10-11 18:38:25,680 INFO L506 CegarLoopForPetriNet]: Number of universal loopers: 57 out of 69 [2020-10-11 18:38:25,681 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 79 places, 53 transitions, 150 flow. Second operand 7 states. [2020-10-11 18:38:25,681 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2020-10-11 18:38:25,681 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 57 of 69 [2020-10-11 18:38:25,682 INFO L71 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2020-10-11 18:38:25,858 INFO L129 PetriNetUnfolder]: 4/74 cut-off events. [2020-10-11 18:38:25,859 INFO L130 PetriNetUnfolder]: For 55/60 co-relation queries the response was YES. [2020-10-11 18:38:25,859 INFO L80 FinitePrefix]: Finished finitePrefix Result has 153 conditions, 74 events. 4/74 cut-off events. For 55/60 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 118 event pairs, 0 based on Foata normal form. 3/76 useless extension candidates. Maximal degree in co-relation 135. Up to 7 conditions per place. [2020-10-11 18:38:25,860 INFO L132 encePairwiseOnDemand]: 61/69 looper letters, 6 selfloop transitions, 4 changer transitions 12/65 dead transitions. [2020-10-11 18:38:25,860 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 82 places, 65 transitions, 251 flow [2020-10-11 18:38:25,861 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-11 18:38:25,861 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2020-10-11 18:38:25,863 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 594 transitions. [2020-10-11 18:38:25,864 INFO L551 CegarLoopForPetriNet]: DFA transition density 0.8608695652173913 [2020-10-11 18:38:25,864 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 594 transitions. [2020-10-11 18:38:25,864 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 594 transitions. [2020-10-11 18:38:25,865 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-10-11 18:38:25,865 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 594 transitions. [2020-10-11 18:38:25,867 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 11 states. [2020-10-11 18:38:25,869 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result 11 states. [2020-10-11 18:38:25,869 INFO L81 ComplementDD]: Finished complementDD. Result 11 states. [2020-10-11 18:38:25,870 INFO L185 Difference]: Start difference. First operand has 79 places, 53 transitions, 150 flow. Second operand 10 states and 594 transitions. [2020-10-11 18:38:25,872 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 82 places, 65 transitions, 251 flow [2020-10-11 18:38:25,875 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 72 places, 65 transitions, 201 flow, removed 20 selfloop flow, removed 10 redundant places. [2020-10-11 18:38:25,877 INFO L241 Difference]: Finished difference. Result has 80 places, 53 transitions, 154 flow [2020-10-11 18:38:25,878 INFO L325 CegarLoopForPetriNet]: {PETRI_ALPHABET=69, PETRI_DIFFERENCE_MINUEND_FLOW=124, PETRI_DIFFERENCE_MINUEND_PLACES=63, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=53, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=49, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=154, PETRI_PLACES=80, PETRI_TRANSITIONS=53} [2020-10-11 18:38:25,885 INFO L341 CegarLoopForPetriNet]: 64 programPoint places, 16 predicate places. [2020-10-11 18:38:25,885 INFO L481 AbstractCegarLoop]: Abstraction has has 80 places, 53 transitions, 154 flow [2020-10-11 18:38:25,886 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-11 18:38:25,886 INFO L247 CegarLoopForPetriNet]: Found error trace [2020-10-11 18:38:25,887 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-11 18:38:25,887 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-11 18:38:25,887 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-11 18:38:25,888 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-11 18:38:25,888 INFO L82 PathProgramCache]: Analyzing trace with hash -1579759487, now seen corresponding path program 1 times [2020-10-11 18:38:25,888 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-11 18:38:25,888 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [633967135] [2020-10-11 18:38:25,889 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-11 18:38:25,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-11 18:38:26,029 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-11 18:38:26,029 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [633967135] [2020-10-11 18:38:26,030 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-11 18:38:26,030 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-11 18:38:26,030 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1392948968] [2020-10-11 18:38:26,031 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-11 18:38:26,031 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-11 18:38:26,031 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-11 18:38:26,031 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-10-11 18:38:26,120 INFO L506 CegarLoopForPetriNet]: Number of universal loopers: 56 out of 69 [2020-10-11 18:38:26,121 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 80 places, 53 transitions, 154 flow. Second operand 6 states. [2020-10-11 18:38:26,121 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2020-10-11 18:38:26,121 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 56 of 69 [2020-10-11 18:38:26,121 INFO L71 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2020-10-11 18:38:26,291 INFO L129 PetriNetUnfolder]: 91/308 cut-off events. [2020-10-11 18:38:26,291 INFO L130 PetriNetUnfolder]: For 69/70 co-relation queries the response was YES. [2020-10-11 18:38:26,295 INFO L80 FinitePrefix]: Finished finitePrefix Result has 575 conditions, 308 events. 91/308 cut-off events. For 69/70 co-relation queries the response was YES. Maximal size of possible extension queue 40. Compared 1569 event pairs, 25 based on Foata normal form. 8/305 useless extension candidates. Maximal degree in co-relation 538. Up to 81 conditions per place. [2020-10-11 18:38:26,297 INFO L132 encePairwiseOnDemand]: 60/69 looper letters, 10 selfloop transitions, 6 changer transitions 19/78 dead transitions. [2020-10-11 18:38:26,298 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 82 places, 78 transitions, 274 flow [2020-10-11 18:38:26,298 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-11 18:38:26,298 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2020-10-11 18:38:26,300 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 541 transitions. [2020-10-11 18:38:26,300 INFO L551 CegarLoopForPetriNet]: DFA transition density 0.8711755233494364 [2020-10-11 18:38:26,300 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 541 transitions. [2020-10-11 18:38:26,301 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 541 transitions. [2020-10-11 18:38:26,301 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-10-11 18:38:26,301 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 541 transitions. [2020-10-11 18:38:26,303 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 10 states. [2020-10-11 18:38:26,304 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result 10 states. [2020-10-11 18:38:26,304 INFO L81 ComplementDD]: Finished complementDD. Result 10 states. [2020-10-11 18:38:26,304 INFO L185 Difference]: Start difference. First operand has 80 places, 53 transitions, 154 flow. Second operand 9 states and 541 transitions. [2020-10-11 18:38:26,305 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 82 places, 78 transitions, 274 flow [2020-10-11 18:38:26,312 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 71 places, 78 transitions, 244 flow, removed 9 selfloop flow, removed 11 redundant places. [2020-10-11 18:38:26,317 INFO L241 Difference]: Finished difference. Result has 77 places, 56 transitions, 180 flow [2020-10-11 18:38:26,317 INFO L325 CegarLoopForPetriNet]: {PETRI_ALPHABET=69, PETRI_DIFFERENCE_MINUEND_FLOW=124, PETRI_DIFFERENCE_MINUEND_PLACES=63, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=53, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=47, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=180, PETRI_PLACES=77, PETRI_TRANSITIONS=56} [2020-10-11 18:38:26,318 INFO L341 CegarLoopForPetriNet]: 64 programPoint places, 13 predicate places. [2020-10-11 18:38:26,318 INFO L481 AbstractCegarLoop]: Abstraction has has 77 places, 56 transitions, 180 flow [2020-10-11 18:38:26,318 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-11 18:38:26,318 INFO L247 CegarLoopForPetriNet]: Found error trace [2020-10-11 18:38:26,318 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-11 18:38:26,319 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-11 18:38:26,319 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-11 18:38:26,319 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-11 18:38:26,319 INFO L82 PathProgramCache]: Analyzing trace with hash -1084558201, now seen corresponding path program 1 times [2020-10-11 18:38:26,319 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-11 18:38:26,320 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1444312243] [2020-10-11 18:38:26,320 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-11 18:38:26,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-11 18:38:26,449 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-11 18:38:26,449 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1444312243] [2020-10-11 18:38:26,450 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-11 18:38:26,450 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-10-11 18:38:26,450 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1230393318] [2020-10-11 18:38:26,450 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-11 18:38:26,451 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-11 18:38:26,451 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-11 18:38:26,451 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2020-10-11 18:38:26,598 INFO L506 CegarLoopForPetriNet]: Number of universal loopers: 56 out of 69 [2020-10-11 18:38:26,599 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 77 places, 56 transitions, 180 flow. Second operand 7 states. [2020-10-11 18:38:26,599 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2020-10-11 18:38:26,599 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 56 of 69 [2020-10-11 18:38:26,599 INFO L71 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2020-10-11 18:38:26,791 INFO L129 PetriNetUnfolder]: 52/206 cut-off events. [2020-10-11 18:38:26,792 INFO L130 PetriNetUnfolder]: For 256/304 co-relation queries the response was YES. [2020-10-11 18:38:26,793 INFO L80 FinitePrefix]: Finished finitePrefix Result has 594 conditions, 206 events. 52/206 cut-off events. For 256/304 co-relation queries the response was YES. Maximal size of possible extension queue 24. Compared 853 event pairs, 0 based on Foata normal form. 14/216 useless extension candidates. Maximal degree in co-relation 560. Up to 75 conditions per place. [2020-10-11 18:38:26,794 INFO L132 encePairwiseOnDemand]: 60/69 looper letters, 10 selfloop transitions, 9 changer transitions 19/81 dead transitions. [2020-10-11 18:38:26,794 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 82 places, 81 transitions, 433 flow [2020-10-11 18:38:26,794 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-11 18:38:26,794 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2020-10-11 18:38:26,796 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 600 transitions. [2020-10-11 18:38:26,797 INFO L551 CegarLoopForPetriNet]: DFA transition density 0.8695652173913043 [2020-10-11 18:38:26,797 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 600 transitions. [2020-10-11 18:38:26,797 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 600 transitions. [2020-10-11 18:38:26,797 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-10-11 18:38:26,798 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 600 transitions. [2020-10-11 18:38:26,799 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 11 states. [2020-10-11 18:38:26,801 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result 11 states. [2020-10-11 18:38:26,801 INFO L81 ComplementDD]: Finished complementDD. Result 11 states. [2020-10-11 18:38:26,801 INFO L185 Difference]: Start difference. First operand has 77 places, 56 transitions, 180 flow. Second operand 10 states and 600 transitions. [2020-10-11 18:38:26,801 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 82 places, 81 transitions, 433 flow [2020-10-11 18:38:26,803 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 77 places, 81 transitions, 409 flow, removed 7 selfloop flow, removed 5 redundant places. [2020-10-11 18:38:26,805 INFO L241 Difference]: Finished difference. Result has 83 places, 59 transitions, 248 flow [2020-10-11 18:38:26,805 INFO L325 CegarLoopForPetriNet]: {PETRI_ALPHABET=69, PETRI_DIFFERENCE_MINUEND_FLOW=166, PETRI_DIFFERENCE_MINUEND_PLACES=68, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=56, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=47, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=248, PETRI_PLACES=83, PETRI_TRANSITIONS=59} [2020-10-11 18:38:26,805 INFO L341 CegarLoopForPetriNet]: 64 programPoint places, 19 predicate places. [2020-10-11 18:38:26,805 INFO L481 AbstractCegarLoop]: Abstraction has has 83 places, 59 transitions, 248 flow [2020-10-11 18:38:26,805 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-11 18:38:26,805 INFO L247 CegarLoopForPetriNet]: Found error trace [2020-10-11 18:38:26,806 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-11 18:38:26,806 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-11 18:38:26,806 INFO L429 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-11 18:38:26,806 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-11 18:38:26,806 INFO L82 PathProgramCache]: Analyzing trace with hash -690592727, now seen corresponding path program 1 times [2020-10-11 18:38:26,807 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-11 18:38:26,807 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1794517505] [2020-10-11 18:38:26,807 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-11 18:38:26,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-11 18:38:26,903 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-11 18:38:26,903 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1794517505] [2020-10-11 18:38:26,903 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-11 18:38:26,904 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-10-11 18:38:26,904 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2090764865] [2020-10-11 18:38:26,904 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-11 18:38:26,904 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-11 18:38:26,905 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-11 18:38:26,905 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2020-10-11 18:38:27,004 INFO L506 CegarLoopForPetriNet]: Number of universal loopers: 56 out of 69 [2020-10-11 18:38:27,005 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 83 places, 59 transitions, 248 flow. Second operand 8 states. [2020-10-11 18:38:27,005 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2020-10-11 18:38:27,005 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 56 of 69 [2020-10-11 18:38:27,005 INFO L71 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2020-10-11 18:38:27,177 INFO L129 PetriNetUnfolder]: 16/99 cut-off events. [2020-10-11 18:38:27,178 INFO L130 PetriNetUnfolder]: For 365/414 co-relation queries the response was YES. [2020-10-11 18:38:27,178 INFO L80 FinitePrefix]: Finished finitePrefix Result has 343 conditions, 99 events. 16/99 cut-off events. For 365/414 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 226 event pairs, 0 based on Foata normal form. 14/112 useless extension candidates. Maximal degree in co-relation 318. Up to 30 conditions per place. [2020-10-11 18:38:27,179 INFO L132 encePairwiseOnDemand]: 60/69 looper letters, 4 selfloop transitions, 12 changer transitions 13/72 dead transitions. [2020-10-11 18:38:27,179 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 89 places, 72 transitions, 432 flow [2020-10-11 18:38:27,180 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-11 18:38:27,180 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2020-10-11 18:38:27,182 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 647 transitions. [2020-10-11 18:38:27,182 INFO L551 CegarLoopForPetriNet]: DFA transition density 0.852437417654809 [2020-10-11 18:38:27,182 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 647 transitions. [2020-10-11 18:38:27,183 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 647 transitions. [2020-10-11 18:38:27,183 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-10-11 18:38:27,183 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 647 transitions. [2020-10-11 18:38:27,185 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 12 states. [2020-10-11 18:38:27,187 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result 12 states. [2020-10-11 18:38:27,187 INFO L81 ComplementDD]: Finished complementDD. Result 12 states. [2020-10-11 18:38:27,187 INFO L185 Difference]: Start difference. First operand has 83 places, 59 transitions, 248 flow. Second operand 11 states and 647 transitions. [2020-10-11 18:38:27,187 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 89 places, 72 transitions, 432 flow [2020-10-11 18:38:27,189 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 79 places, 72 transitions, 333 flow, removed 39 selfloop flow, removed 10 redundant places. [2020-10-11 18:38:27,191 INFO L241 Difference]: Finished difference. Result has 85 places, 59 transitions, 234 flow [2020-10-11 18:38:27,191 INFO L325 CegarLoopForPetriNet]: {PETRI_ALPHABET=69, PETRI_DIFFERENCE_MINUEND_FLOW=188, PETRI_DIFFERENCE_MINUEND_PLACES=69, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=59, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=12, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=47, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=234, PETRI_PLACES=85, PETRI_TRANSITIONS=59} [2020-10-11 18:38:27,191 INFO L341 CegarLoopForPetriNet]: 64 programPoint places, 21 predicate places. [2020-10-11 18:38:27,191 INFO L481 AbstractCegarLoop]: Abstraction has has 85 places, 59 transitions, 234 flow [2020-10-11 18:38:27,191 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-11 18:38:27,192 INFO L247 CegarLoopForPetriNet]: Found error trace [2020-10-11 18:38:27,192 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-11 18:38:27,192 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-11 18:38:27,192 INFO L429 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-11 18:38:27,192 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-11 18:38:27,192 INFO L82 PathProgramCache]: Analyzing trace with hash 821428126, now seen corresponding path program 1 times [2020-10-11 18:38:27,193 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-11 18:38:27,193 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2109275464] [2020-10-11 18:38:27,193 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-11 18:38:27,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-11 18:38:27,270 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-11 18:38:27,270 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2109275464] [2020-10-11 18:38:27,271 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-11 18:38:27,271 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-10-11 18:38:27,271 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [137492786] [2020-10-11 18:38:27,271 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-11 18:38:27,272 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-11 18:38:27,272 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-11 18:38:27,272 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2020-10-11 18:38:27,450 INFO L506 CegarLoopForPetriNet]: Number of universal loopers: 57 out of 69 [2020-10-11 18:38:27,450 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 85 places, 59 transitions, 234 flow. Second operand 7 states. [2020-10-11 18:38:27,451 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2020-10-11 18:38:27,451 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 57 of 69 [2020-10-11 18:38:27,451 INFO L71 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2020-10-11 18:38:27,517 INFO L129 PetriNetUnfolder]: 5/68 cut-off events. [2020-10-11 18:38:27,517 INFO L130 PetriNetUnfolder]: For 71/77 co-relation queries the response was YES. [2020-10-11 18:38:27,518 INFO L80 FinitePrefix]: Finished finitePrefix Result has 160 conditions, 68 events. 5/68 cut-off events. For 71/77 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 82 event pairs, 0 based on Foata normal form. 1/68 useless extension candidates. Maximal degree in co-relation 135. Up to 11 conditions per place. [2020-10-11 18:38:27,518 INFO L132 encePairwiseOnDemand]: 63/69 looper letters, 0 selfloop transitions, 0 changer transitions 57/57 dead transitions. [2020-10-11 18:38:27,518 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 85 places, 57 transitions, 248 flow [2020-10-11 18:38:27,518 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-11 18:38:27,518 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2020-10-11 18:38:27,520 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 409 transitions. [2020-10-11 18:38:27,520 INFO L551 CegarLoopForPetriNet]: DFA transition density 0.8467908902691511 [2020-10-11 18:38:27,520 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 409 transitions. [2020-10-11 18:38:27,520 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 409 transitions. [2020-10-11 18:38:27,521 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-10-11 18:38:27,521 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 409 transitions. [2020-10-11 18:38:27,522 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 8 states. [2020-10-11 18:38:27,523 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result 8 states. [2020-10-11 18:38:27,523 INFO L81 ComplementDD]: Finished complementDD. Result 8 states. [2020-10-11 18:38:27,523 INFO L185 Difference]: Start difference. First operand has 85 places, 59 transitions, 234 flow. Second operand 7 states and 409 transitions. [2020-10-11 18:38:27,524 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 85 places, 57 transitions, 248 flow [2020-10-11 18:38:27,525 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 70 places, 57 transitions, 166 flow, removed 22 selfloop flow, removed 15 redundant places. [2020-10-11 18:38:27,526 INFO L241 Difference]: Finished difference. Result has 70 places, 0 transitions, 0 flow [2020-10-11 18:38:27,526 INFO L325 CegarLoopForPetriNet]: {PETRI_ALPHABET=69, PETRI_DIFFERENCE_MINUEND_FLOW=148, PETRI_DIFFERENCE_MINUEND_PLACES=64, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=57, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=57, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=0, PETRI_PLACES=70, PETRI_TRANSITIONS=0} [2020-10-11 18:38:27,526 INFO L341 CegarLoopForPetriNet]: 64 programPoint places, 6 predicate places. [2020-10-11 18:38:27,527 INFO L481 AbstractCegarLoop]: Abstraction has has 70 places, 0 transitions, 0 flow [2020-10-11 18:38:27,527 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-11 18:38:27,527 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-11 18:38:27,533 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 11.10 06:38:27 BasicIcfg [2020-10-11 18:38:27,534 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-11 18:38:27,537 INFO L168 Benchmark]: Toolchain (without parser) took 5618.92 ms. Allocated memory was 251.7 MB in the beginning and 421.5 MB in the end (delta: 169.9 MB). Free memory was 207.4 MB in the beginning and 232.2 MB in the end (delta: -24.8 MB). Peak memory consumption was 145.1 MB. Max. memory is 14.2 GB. [2020-10-11 18:38:27,544 INFO L168 Benchmark]: CDTParser took 0.22 ms. Allocated memory is still 251.7 MB. Free memory was 229.7 MB in the beginning and 228.9 MB in the end (delta: 839.0 kB). Peak memory consumption was 839.0 kB. Max. memory is 14.2 GB. [2020-10-11 18:38:27,546 INFO L168 Benchmark]: CACSL2BoogieTranslator took 670.29 ms. Allocated memory was 251.7 MB in the beginning and 315.1 MB in the end (delta: 63.4 MB). Free memory was 207.4 MB in the beginning and 268.5 MB in the end (delta: -61.1 MB). Peak memory consumption was 27.2 MB. Max. memory is 14.2 GB. [2020-10-11 18:38:27,547 INFO L168 Benchmark]: Boogie Procedure Inliner took 46.46 ms. Allocated memory is still 315.1 MB. Free memory was 268.5 MB in the beginning and 266.8 MB in the end (delta: 1.8 MB). Peak memory consumption was 1.8 MB. Max. memory is 14.2 GB. [2020-10-11 18:38:27,547 INFO L168 Benchmark]: Boogie Preprocessor took 25.73 ms. Allocated memory is still 315.1 MB. Free memory was 266.8 MB in the beginning and 265.0 MB in the end (delta: 1.7 MB). Peak memory consumption was 1.7 MB. Max. memory is 14.2 GB. [2020-10-11 18:38:27,548 INFO L168 Benchmark]: RCFGBuilder took 381.64 ms. Allocated memory is still 315.1 MB. Free memory was 265.0 MB in the beginning and 241.8 MB in the end (delta: 23.2 MB). Peak memory consumption was 23.2 MB. Max. memory is 14.2 GB. [2020-10-11 18:38:27,555 INFO L168 Benchmark]: TraceAbstraction took 4490.18 ms. Allocated memory was 315.1 MB in the beginning and 421.5 MB in the end (delta: 106.4 MB). Free memory was 241.8 MB in the beginning and 232.2 MB in the end (delta: 9.7 MB). Peak memory consumption was 116.1 MB. Max. memory is 14.2 GB. [2020-10-11 18:38:27,563 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22 ms. Allocated memory is still 251.7 MB. Free memory was 229.7 MB in the beginning and 228.9 MB in the end (delta: 839.0 kB). Peak memory consumption was 839.0 kB. Max. memory is 14.2 GB. * CACSL2BoogieTranslator took 670.29 ms. Allocated memory was 251.7 MB in the beginning and 315.1 MB in the end (delta: 63.4 MB). Free memory was 207.4 MB in the beginning and 268.5 MB in the end (delta: -61.1 MB). Peak memory consumption was 27.2 MB. Max. memory is 14.2 GB. * Boogie Procedure Inliner took 46.46 ms. Allocated memory is still 315.1 MB. Free memory was 268.5 MB in the beginning and 266.8 MB in the end (delta: 1.8 MB). Peak memory consumption was 1.8 MB. Max. memory is 14.2 GB. * Boogie Preprocessor took 25.73 ms. Allocated memory is still 315.1 MB. Free memory was 266.8 MB in the beginning and 265.0 MB in the end (delta: 1.7 MB). Peak memory consumption was 1.7 MB. Max. memory is 14.2 GB. * RCFGBuilder took 381.64 ms. Allocated memory is still 315.1 MB. Free memory was 265.0 MB in the beginning and 241.8 MB in the end (delta: 23.2 MB). Peak memory consumption was 23.2 MB. Max. memory is 14.2 GB. * TraceAbstraction took 4490.18 ms. Allocated memory was 315.1 MB in the beginning and 421.5 MB in the end (delta: 106.4 MB). Free memory was 241.8 MB in the beginning and 232.2 MB in the end (delta: 9.7 MB). Peak memory consumption was 116.1 MB. Max. memory is 14.2 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - 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, 68 locations, 1 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: VerificationResult: SAFE, OverallTime: 4.3s, OverallIterations: 8, TraceHistogramMax: 1, AutomataDifference: 2.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 137 SDtfs, 219 SDslu, 492 SDs, 0 SdLazy, 531 SolverSat, 90 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.6s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 100 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 84 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 76 ImplicationChecksByTransitivity, 1.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=248occurred in iteration=6, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 1.0s InterpolantComputationTime, 335 NumberOfCodeBlocks, 335 NumberOfCodeBlocksAsserted, 8 NumberOfCheckSat, 327 ConstructedInterpolants, 0 QuantifiedInterpolants, 39679 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 8 InterpolantComputations, 8 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...