/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-SemanticLbe.epf --traceabstraction.use.on-demand.petri.net.difference true --traceabstraction.size.reduction.to.apply.after.petri.net.difference REMOVE_DEAD -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/goblint-regression/13-privatized_27-multiple-protecting2_true.i -------------------------------------------------------------------------------- This is Ultimate 0.2.2-wip.dk.repeated-lipton-a802222-m [2022-12-12 22:02:36,792 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-12 22:02:36,793 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-12 22:02:36,826 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-12 22:02:36,827 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-12 22:02:36,829 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-12 22:02:36,832 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-12 22:02:36,834 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-12 22:02:36,837 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-12 22:02:36,842 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-12 22:02:36,843 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-12 22:02:36,845 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-12 22:02:36,845 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-12 22:02:36,847 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-12 22:02:36,848 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-12 22:02:36,850 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-12 22:02:36,850 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-12 22:02:36,851 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-12 22:02:36,853 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-12 22:02:36,854 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-12 22:02:36,855 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-12 22:02:36,855 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-12 22:02:36,856 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-12 22:02:36,856 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-12 22:02:36,858 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-12 22:02:36,858 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-12 22:02:36,859 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-12 22:02:36,859 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-12 22:02:36,859 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-12 22:02:36,860 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... 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[2022-12-12 22:02:36,873 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-12 22:02:36,873 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-12 22:02:36,874 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-12 22:02:36,874 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-SemanticLbe.epf [2022-12-12 22:02:36,899 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-12 22:02:36,899 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-12 22:02:36,900 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-12 22:02:36,900 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-12 22:02:36,901 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-12-12 22:02:36,901 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-12-12 22:02:36,902 INFO L138 SettingsManager]: * Use SBE=true [2022-12-12 22:02:36,902 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-12 22:02:36,902 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-12 22:02:36,902 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-12 22:02:36,903 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-12 22:02:36,903 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-12 22:02:36,903 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-12 22:02:36,903 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-12 22:02:36,903 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-12 22:02:36,903 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-12 22:02:36,903 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-12 22:02:36,903 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-12 22:02:36,903 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-12 22:02:36,903 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-12 22:02:36,904 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-12-12 22:02:36,904 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-12-12 22:02:36,904 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-12 22:02:36,904 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-12 22:02:36,904 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-12 22:02:36,904 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-12 22:02:36,904 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-12 22:02:36,904 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-12 22:02:36,904 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-12-12 22:02:36,904 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-12-12 22:02:36,905 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use on-demand Petri net difference -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Size reduction to apply after Petri net difference -> REMOVE_DEAD [2022-12-12 22:02:37,148 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-12 22:02:37,161 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-12 22:02:37,163 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-12 22:02:37,164 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-12 22:02:37,164 INFO L275 PluginConnector]: CDTParser initialized [2022-12-12 22:02:37,165 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/goblint-regression/13-privatized_27-multiple-protecting2_true.i [2022-12-12 22:02:38,133 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-12 22:02:38,385 INFO L351 CDTParser]: Found 1 translation units. [2022-12-12 22:02:38,385 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/13-privatized_27-multiple-protecting2_true.i [2022-12-12 22:02:38,393 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ca6ab045b/a3b14d928103477f8bfe42e1cf39e16b/FLAGb246b0b60 [2022-12-12 22:02:38,404 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ca6ab045b/a3b14d928103477f8bfe42e1cf39e16b [2022-12-12 22:02:38,406 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-12 22:02:38,406 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-12-12 22:02:38,407 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-12 22:02:38,407 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-12 22:02:38,409 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-12 22:02:38,409 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.12 10:02:38" (1/1) ... [2022-12-12 22:02:38,410 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3c54aab3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 10:02:38, skipping insertion in model container [2022-12-12 22:02:38,410 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.12 10:02:38" (1/1) ... [2022-12-12 22:02:38,414 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-12 22:02:38,450 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-12 22:02:38,577 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/13-privatized_27-multiple-protecting2_true.i[1097,1110] [2022-12-12 22:02:38,709 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-12 22:02:38,721 INFO L203 MainTranslator]: Completed pre-run [2022-12-12 22:02:38,730 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/13-privatized_27-multiple-protecting2_true.i[1097,1110] [2022-12-12 22:02:38,768 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-12 22:02:38,799 INFO L208 MainTranslator]: Completed translation [2022-12-12 22:02:38,800 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 10:02:38 WrapperNode [2022-12-12 22:02:38,801 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-12 22:02:38,802 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-12 22:02:38,802 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-12 22:02:38,802 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-12 22:02:38,807 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 10:02:38" (1/1) ... [2022-12-12 22:02:38,830 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 10:02:38" (1/1) ... [2022-12-12 22:02:38,853 INFO L138 Inliner]: procedures = 163, calls = 52, calls flagged for inlining = 6, calls inlined = 6, statements flattened = 104 [2022-12-12 22:02:38,853 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-12 22:02:38,854 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-12 22:02:38,854 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-12 22:02:38,854 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-12 22:02:38,860 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 10:02:38" (1/1) ... [2022-12-12 22:02:38,860 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 10:02:38" (1/1) ... [2022-12-12 22:02:38,870 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 10:02:38" (1/1) ... [2022-12-12 22:02:38,871 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 10:02:38" (1/1) ... [2022-12-12 22:02:38,879 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 10:02:38" (1/1) ... [2022-12-12 22:02:38,880 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 10:02:38" (1/1) ... [2022-12-12 22:02:38,881 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 10:02:38" (1/1) ... [2022-12-12 22:02:38,882 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 10:02:38" (1/1) ... [2022-12-12 22:02:38,884 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-12 22:02:38,884 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-12 22:02:38,884 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-12 22:02:38,884 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-12 22:02:38,885 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 10:02:38" (1/1) ... [2022-12-12 22:02:38,888 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-12 22:02:38,900 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-12-12 22:02:38,909 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-12 22:02:38,912 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-12 22:02:38,934 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-12-12 22:02:38,934 INFO L130 BoogieDeclarations]: Found specification of procedure t2_fun [2022-12-12 22:02:38,934 INFO L138 BoogieDeclarations]: Found implementation of procedure t2_fun [2022-12-12 22:02:38,934 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-12-12 22:02:38,934 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2022-12-12 22:02:38,934 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-12 22:02:38,934 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-12-12 22:02:38,934 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2022-12-12 22:02:38,934 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2022-12-12 22:02:38,934 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-12-12 22:02:38,934 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-12 22:02:38,934 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-12 22:02:38,935 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-12 22:02:38,935 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2022-12-12 22:02:39,018 INFO L236 CfgBuilder]: Building ICFG [2022-12-12 22:02:39,019 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-12 22:02:39,230 INFO L277 CfgBuilder]: Performing block encoding [2022-12-12 22:02:39,236 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-12 22:02:39,236 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2022-12-12 22:02:39,238 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.12 10:02:39 BoogieIcfgContainer [2022-12-12 22:02:39,238 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-12 22:02:39,240 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-12 22:02:39,240 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-12 22:02:39,242 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-12 22:02:39,242 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.12 10:02:38" (1/3) ... [2022-12-12 22:02:39,242 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4dfac061 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.12 10:02:39, skipping insertion in model container [2022-12-12 22:02:39,242 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 10:02:38" (2/3) ... [2022-12-12 22:02:39,243 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4dfac061 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.12 10:02:39, skipping insertion in model container [2022-12-12 22:02:39,243 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.12 10:02:39" (3/3) ... [2022-12-12 22:02:39,243 INFO L112 eAbstractionObserver]: Analyzing ICFG 13-privatized_27-multiple-protecting2_true.i [2022-12-12 22:02:39,256 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-12 22:02:39,256 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 4 error locations. [2022-12-12 22:02:39,256 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-12-12 22:02:39,320 INFO L144 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2022-12-12 22:02:39,355 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 150 places, 147 transitions, 310 flow [2022-12-12 22:02:39,414 INFO L130 PetriNetUnfolder]: 4/145 cut-off events. [2022-12-12 22:02:39,414 INFO L131 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2022-12-12 22:02:39,419 INFO L83 FinitePrefix]: Finished finitePrefix Result has 154 conditions, 145 events. 4/145 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 136 event pairs, 0 based on Foata normal form. 0/137 useless extension candidates. Maximal degree in co-relation 97. Up to 2 conditions per place. [2022-12-12 22:02:39,419 INFO L82 GeneralOperation]: Start removeDead. Operand has 150 places, 147 transitions, 310 flow [2022-12-12 22:02:39,424 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 131 places, 127 transitions, 260 flow [2022-12-12 22:02:39,425 INFO L203 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-12-12 22:02:39,438 INFO L174 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 131 places, 127 transitions, 260 flow [2022-12-12 22:02:39,440 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 131 places, 127 transitions, 260 flow [2022-12-12 22:02:39,464 INFO L130 PetriNetUnfolder]: 3/127 cut-off events. [2022-12-12 22:02:39,464 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-12 22:02:39,465 INFO L83 FinitePrefix]: Finished finitePrefix Result has 134 conditions, 127 events. 3/127 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 129 event pairs, 0 based on Foata normal form. 0/121 useless extension candidates. Maximal degree in co-relation 91. Up to 2 conditions per place. [2022-12-12 22:02:39,469 INFO L222 LiptonReduction]: Starting Lipton reduction on Petri net that has 131 places, 127 transitions, 260 flow [2022-12-12 22:02:39,469 INFO L226 LiptonReduction]: Number of co-enabled transitions 4248 [2022-12-12 22:02:43,197 INFO L241 LiptonReduction]: Total number of compositions: 104 [2022-12-12 22:02:43,226 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-12 22:02:43,233 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=false, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@6379ea44, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, Conditionality=CONDITIONAL_DISJUNCTIVE, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-12-12 22:02:43,234 INFO L358 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2022-12-12 22:02:43,239 INFO L130 PetriNetUnfolder]: 0/27 cut-off events. [2022-12-12 22:02:43,239 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-12 22:02:43,239 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-12 22:02:43,240 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2022-12-12 22:02:43,240 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2022-12-12 22:02:43,243 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-12 22:02:43,244 INFO L85 PathProgramCache]: Analyzing trace with hash -2000737828, now seen corresponding path program 1 times [2022-12-12 22:02:43,250 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-12 22:02:43,250 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [152270967] [2022-12-12 22:02:43,250 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-12 22:02:43,251 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-12 22:02:43,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-12 22:02:43,386 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-12 22:02:43,387 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-12 22:02:43,387 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [152270967] [2022-12-12 22:02:43,387 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [152270967] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-12 22:02:43,387 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-12 22:02:43,387 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-12 22:02:43,388 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1015970216] [2022-12-12 22:02:43,389 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-12 22:02:43,393 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-12-12 22:02:43,394 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-12 22:02:43,406 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-12-12 22:02:43,406 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-12-12 22:02:43,407 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 13 out of 60 [2022-12-12 22:02:43,408 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 64 places, 60 transitions, 126 flow. Second operand has 2 states, 2 states have (on average 16.5) internal successors, (33), 2 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-12 22:02:43,408 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-12 22:02:43,408 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 13 of 60 [2022-12-12 22:02:43,409 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-12 22:02:43,947 INFO L130 PetriNetUnfolder]: 5260/8936 cut-off events. [2022-12-12 22:02:43,948 INFO L131 PetriNetUnfolder]: For 10/10 co-relation queries the response was YES. [2022-12-12 22:02:43,956 INFO L83 FinitePrefix]: Finished finitePrefix Result has 17180 conditions, 8936 events. 5260/8936 cut-off events. For 10/10 co-relation queries the response was YES. Maximal size of possible extension queue 334. Compared 60723 event pairs, 5260 based on Foata normal form. 0/5985 useless extension candidates. Maximal degree in co-relation 17170. Up to 8213 conditions per place. [2022-12-12 22:02:43,986 INFO L137 encePairwiseOnDemand]: 57/60 looper letters, 44 selfloop transitions, 0 changer transitions 0/57 dead transitions. [2022-12-12 22:02:43,986 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 65 places, 57 transitions, 208 flow [2022-12-12 22:02:43,987 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-12-12 22:02:43,988 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2022-12-12 22:02:43,992 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 73 transitions. [2022-12-12 22:02:43,993 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.6083333333333333 [2022-12-12 22:02:43,996 INFO L295 CegarLoopForPetriNet]: 64 programPoint places, 1 predicate places. [2022-12-12 22:02:43,996 INFO L82 GeneralOperation]: Start removeDead. Operand has 65 places, 57 transitions, 208 flow [2022-12-12 22:02:44,025 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 65 places, 57 transitions, 208 flow [2022-12-12 22:02:44,027 INFO L495 AbstractCegarLoop]: Abstraction has has 65 places, 57 transitions, 208 flow [2022-12-12 22:02:44,027 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 16.5) internal successors, (33), 2 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-12 22:02:44,027 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-12 22:02:44,027 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2022-12-12 22:02:44,027 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-12 22:02:44,028 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2022-12-12 22:02:44,028 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-12 22:02:44,028 INFO L85 PathProgramCache]: Analyzing trace with hash -2000748298, now seen corresponding path program 1 times [2022-12-12 22:02:44,028 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-12 22:02:44,028 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [182992789] [2022-12-12 22:02:44,028 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-12 22:02:44,028 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-12 22:02:44,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-12 22:02:44,134 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-12 22:02:44,134 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-12 22:02:44,135 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [182992789] [2022-12-12 22:02:44,135 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [182992789] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-12 22:02:44,135 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-12 22:02:44,135 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-12-12 22:02:44,135 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1332967326] [2022-12-12 22:02:44,135 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-12 22:02:44,136 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-12 22:02:44,136 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-12 22:02:44,136 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-12 22:02:44,136 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-12 22:02:44,136 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 12 out of 60 [2022-12-12 22:02:44,137 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 65 places, 57 transitions, 208 flow. Second operand has 3 states, 3 states have (on average 14.333333333333334) internal successors, (43), 3 states have internal predecessors, (43), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-12 22:02:44,137 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-12 22:02:44,137 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 12 of 60 [2022-12-12 22:02:44,137 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-12 22:02:44,682 INFO L130 PetriNetUnfolder]: 5202/8963 cut-off events. [2022-12-12 22:02:44,682 INFO L131 PetriNetUnfolder]: For 749/946 co-relation queries the response was YES. [2022-12-12 22:02:44,687 INFO L83 FinitePrefix]: Finished finitePrefix Result has 25128 conditions, 8963 events. 5202/8963 cut-off events. For 749/946 co-relation queries the response was YES. Maximal size of possible extension queue 354. Compared 65022 event pairs, 1809 based on Foata normal form. 75/6278 useless extension candidates. Maximal degree in co-relation 25115. Up to 7975 conditions per place. [2022-12-12 22:02:44,724 INFO L137 encePairwiseOnDemand]: 54/60 looper letters, 69 selfloop transitions, 3 changer transitions 0/84 dead transitions. [2022-12-12 22:02:44,725 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 67 places, 84 transitions, 463 flow [2022-12-12 22:02:44,729 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-12 22:02:44,729 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-12-12 22:02:44,731 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 111 transitions. [2022-12-12 22:02:44,732 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.6166666666666667 [2022-12-12 22:02:44,732 INFO L295 CegarLoopForPetriNet]: 64 programPoint places, 3 predicate places. [2022-12-12 22:02:44,733 INFO L82 GeneralOperation]: Start removeDead. Operand has 67 places, 84 transitions, 463 flow [2022-12-12 22:02:44,767 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 67 places, 84 transitions, 463 flow [2022-12-12 22:02:44,767 INFO L495 AbstractCegarLoop]: Abstraction has has 67 places, 84 transitions, 463 flow [2022-12-12 22:02:44,768 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 14.333333333333334) internal successors, (43), 3 states have internal predecessors, (43), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-12 22:02:44,768 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-12 22:02:44,768 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-12 22:02:44,768 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-12-12 22:02:44,768 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2022-12-12 22:02:44,769 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-12 22:02:44,769 INFO L85 PathProgramCache]: Analyzing trace with hash 96676387, now seen corresponding path program 1 times [2022-12-12 22:02:44,769 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-12 22:02:44,770 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [332389600] [2022-12-12 22:02:44,770 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-12 22:02:44,773 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-12 22:02:44,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-12 22:02:44,961 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-12 22:02:44,961 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-12 22:02:44,961 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [332389600] [2022-12-12 22:02:44,962 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [332389600] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-12 22:02:44,962 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-12 22:02:44,962 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-12 22:02:44,962 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [634281994] [2022-12-12 22:02:44,962 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-12 22:02:44,962 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-12 22:02:44,963 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-12 22:02:44,963 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-12 22:02:44,964 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-12-12 22:02:44,964 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 3 out of 60 [2022-12-12 22:02:44,964 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 67 places, 84 transitions, 463 flow. Second operand has 4 states, 4 states have (on average 5.25) internal successors, (21), 4 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-12 22:02:44,964 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-12 22:02:44,964 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 3 of 60 [2022-12-12 22:02:44,964 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-12 22:02:45,434 INFO L130 PetriNetUnfolder]: 3374/6438 cut-off events. [2022-12-12 22:02:45,434 INFO L131 PetriNetUnfolder]: For 2536/2536 co-relation queries the response was YES. [2022-12-12 22:02:45,439 INFO L83 FinitePrefix]: Finished finitePrefix Result has 23194 conditions, 6438 events. 3374/6438 cut-off events. For 2536/2536 co-relation queries the response was YES. Maximal size of possible extension queue 234. Compared 46872 event pairs, 504 based on Foata normal form. 468/5303 useless extension candidates. Maximal degree in co-relation 23178. Up to 5139 conditions per place. [2022-12-12 22:02:45,457 INFO L137 encePairwiseOnDemand]: 49/60 looper letters, 142 selfloop transitions, 14 changer transitions 0/159 dead transitions. [2022-12-12 22:02:45,458 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 70 places, 159 transitions, 1191 flow [2022-12-12 22:02:45,458 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-12 22:02:45,458 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2022-12-12 22:02:45,460 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 118 transitions. [2022-12-12 22:02:45,462 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.49166666666666664 [2022-12-12 22:02:45,462 INFO L295 CegarLoopForPetriNet]: 64 programPoint places, 6 predicate places. [2022-12-12 22:02:45,463 INFO L82 GeneralOperation]: Start removeDead. Operand has 70 places, 159 transitions, 1191 flow [2022-12-12 22:02:45,481 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 70 places, 159 transitions, 1191 flow [2022-12-12 22:02:45,481 INFO L495 AbstractCegarLoop]: Abstraction has has 70 places, 159 transitions, 1191 flow [2022-12-12 22:02:45,481 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 5.25) internal successors, (21), 4 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-12 22:02:45,481 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-12 22:02:45,481 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-12 22:02:45,482 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-12-12 22:02:45,482 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2022-12-12 22:02:45,482 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-12 22:02:45,482 INFO L85 PathProgramCache]: Analyzing trace with hash 1992084588, now seen corresponding path program 1 times [2022-12-12 22:02:45,483 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-12 22:02:45,483 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [347538163] [2022-12-12 22:02:45,483 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-12 22:02:45,483 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-12 22:02:45,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-12 22:02:45,556 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-12 22:02:45,556 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-12 22:02:45,556 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [347538163] [2022-12-12 22:02:45,556 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [347538163] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-12 22:02:45,556 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-12 22:02:45,556 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-12-12 22:02:45,556 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [927740723] [2022-12-12 22:02:45,557 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-12 22:02:45,557 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-12 22:02:45,557 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-12 22:02:45,557 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-12 22:02:45,557 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-12 22:02:45,557 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 13 out of 60 [2022-12-12 22:02:45,557 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 70 places, 159 transitions, 1191 flow. Second operand has 3 states, 3 states have (on average 17.0) internal successors, (51), 3 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-12 22:02:45,558 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-12 22:02:45,558 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 13 of 60 [2022-12-12 22:02:45,558 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-12 22:02:45,963 INFO L130 PetriNetUnfolder]: 3348/6386 cut-off events. [2022-12-12 22:02:45,964 INFO L131 PetriNetUnfolder]: For 3995/3995 co-relation queries the response was YES. [2022-12-12 22:02:45,970 INFO L83 FinitePrefix]: Finished finitePrefix Result has 28097 conditions, 6386 events. 3348/6386 cut-off events. For 3995/3995 co-relation queries the response was YES. Maximal size of possible extension queue 232. Compared 45380 event pairs, 486 based on Foata normal form. 0/4818 useless extension candidates. Maximal degree in co-relation 28078. Up to 5095 conditions per place. [2022-12-12 22:02:45,989 INFO L137 encePairwiseOnDemand]: 56/60 looper letters, 165 selfloop transitions, 9 changer transitions 0/197 dead transitions. [2022-12-12 22:02:45,989 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 72 places, 197 transitions, 1843 flow [2022-12-12 22:02:45,990 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-12 22:02:45,990 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-12-12 22:02:45,991 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 109 transitions. [2022-12-12 22:02:45,991 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.6055555555555555 [2022-12-12 22:02:45,992 INFO L295 CegarLoopForPetriNet]: 64 programPoint places, 8 predicate places. [2022-12-12 22:02:45,992 INFO L82 GeneralOperation]: Start removeDead. Operand has 72 places, 197 transitions, 1843 flow [2022-12-12 22:02:46,013 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 72 places, 197 transitions, 1843 flow [2022-12-12 22:02:46,013 INFO L495 AbstractCegarLoop]: Abstraction has has 72 places, 197 transitions, 1843 flow [2022-12-12 22:02:46,013 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 17.0) internal successors, (51), 3 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-12 22:02:46,013 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-12 22:02:46,013 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-12 22:02:46,013 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-12-12 22:02:46,014 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2022-12-12 22:02:46,014 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-12 22:02:46,014 INFO L85 PathProgramCache]: Analyzing trace with hash 879042060, now seen corresponding path program 1 times [2022-12-12 22:02:46,014 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-12 22:02:46,014 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [209138466] [2022-12-12 22:02:46,014 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-12 22:02:46,014 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-12 22:02:46,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-12 22:02:46,118 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-12 22:02:46,118 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-12 22:02:46,118 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [209138466] [2022-12-12 22:02:46,118 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [209138466] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-12 22:02:46,118 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-12 22:02:46,118 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-12 22:02:46,119 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1506047687] [2022-12-12 22:02:46,119 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-12 22:02:46,119 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-12 22:02:46,119 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-12 22:02:46,120 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-12 22:02:46,120 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-12-12 22:02:46,120 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 12 out of 60 [2022-12-12 22:02:46,120 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 72 places, 197 transitions, 1843 flow. Second operand has 5 states, 5 states have (on average 14.8) internal successors, (74), 5 states have internal predecessors, (74), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-12 22:02:46,120 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-12 22:02:46,121 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 12 of 60 [2022-12-12 22:02:46,121 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-12 22:02:46,684 INFO L130 PetriNetUnfolder]: 3096/6033 cut-off events. [2022-12-12 22:02:46,684 INFO L131 PetriNetUnfolder]: For 6432/6452 co-relation queries the response was YES. [2022-12-12 22:02:46,689 INFO L83 FinitePrefix]: Finished finitePrefix Result has 31199 conditions, 6033 events. 3096/6033 cut-off events. For 6432/6452 co-relation queries the response was YES. Maximal size of possible extension queue 217. Compared 43151 event pairs, 441 based on Foata normal form. 137/4782 useless extension candidates. Maximal degree in co-relation 31177. Up to 4751 conditions per place. [2022-12-12 22:02:46,703 INFO L137 encePairwiseOnDemand]: 51/60 looper letters, 238 selfloop transitions, 14 changer transitions 10/284 dead transitions. [2022-12-12 22:02:46,705 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 77 places, 284 transitions, 3246 flow [2022-12-12 22:02:46,705 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-12 22:02:46,706 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-12-12 22:02:46,707 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 204 transitions. [2022-12-12 22:02:46,707 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.5666666666666667 [2022-12-12 22:02:46,709 INFO L295 CegarLoopForPetriNet]: 64 programPoint places, 13 predicate places. [2022-12-12 22:02:46,709 INFO L82 GeneralOperation]: Start removeDead. Operand has 77 places, 284 transitions, 3246 flow [2022-12-12 22:02:46,724 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 77 places, 274 transitions, 3126 flow [2022-12-12 22:02:46,724 INFO L495 AbstractCegarLoop]: Abstraction has has 77 places, 274 transitions, 3126 flow [2022-12-12 22:02:46,724 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 14.8) internal successors, (74), 5 states have internal predecessors, (74), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-12 22:02:46,725 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-12 22:02:46,725 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-12 22:02:46,725 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-12-12 22:02:46,725 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2022-12-12 22:02:46,725 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-12 22:02:46,726 INFO L85 PathProgramCache]: Analyzing trace with hash 388949754, now seen corresponding path program 1 times [2022-12-12 22:02:46,726 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-12 22:02:46,729 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [942050749] [2022-12-12 22:02:46,729 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-12 22:02:46,729 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-12 22:02:46,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-12 22:02:46,823 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-12 22:02:46,824 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-12 22:02:46,824 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [942050749] [2022-12-12 22:02:46,824 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [942050749] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-12 22:02:46,824 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-12 22:02:46,824 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-12 22:02:46,824 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [464209666] [2022-12-12 22:02:46,824 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-12 22:02:46,824 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-12 22:02:46,825 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-12 22:02:46,825 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-12 22:02:46,825 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-12-12 22:02:46,825 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 3 out of 60 [2022-12-12 22:02:46,825 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 77 places, 274 transitions, 3126 flow. Second operand has 5 states, 5 states have (on average 6.4) internal successors, (32), 5 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-12 22:02:46,825 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-12 22:02:46,825 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 3 of 60 [2022-12-12 22:02:46,825 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-12 22:02:47,277 INFO L130 PetriNetUnfolder]: 1843/4606 cut-off events. [2022-12-12 22:02:47,277 INFO L131 PetriNetUnfolder]: For 6259/6259 co-relation queries the response was YES. [2022-12-12 22:02:47,280 INFO L83 FinitePrefix]: Finished finitePrefix Result has 28005 conditions, 4606 events. 1843/4606 cut-off events. For 6259/6259 co-relation queries the response was YES. Maximal size of possible extension queue 238. Compared 38066 event pairs, 20 based on Foata normal form. 938/4479 useless extension candidates. Maximal degree in co-relation 27980. Up to 3537 conditions per place. [2022-12-12 22:02:47,291 INFO L137 encePairwiseOnDemand]: 32/60 looper letters, 221 selfloop transitions, 119 changer transitions 46/389 dead transitions. [2022-12-12 22:02:47,291 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 80 places, 389 transitions, 5231 flow [2022-12-12 22:02:47,291 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-12 22:02:47,291 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2022-12-12 22:02:47,291 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 118 transitions. [2022-12-12 22:02:47,292 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.49166666666666664 [2022-12-12 22:02:47,292 INFO L295 CegarLoopForPetriNet]: 64 programPoint places, 16 predicate places. [2022-12-12 22:02:47,292 INFO L82 GeneralOperation]: Start removeDead. Operand has 80 places, 389 transitions, 5231 flow [2022-12-12 22:02:47,303 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 80 places, 343 transitions, 4589 flow [2022-12-12 22:02:47,304 INFO L495 AbstractCegarLoop]: Abstraction has has 80 places, 343 transitions, 4589 flow [2022-12-12 22:02:47,304 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 6.4) internal successors, (32), 5 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-12 22:02:47,304 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-12 22:02:47,304 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-12 22:02:47,304 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-12-12 22:02:47,304 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2022-12-12 22:02:47,305 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-12 22:02:47,305 INFO L85 PathProgramCache]: Analyzing trace with hash -1712217262, now seen corresponding path program 1 times [2022-12-12 22:02:47,305 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-12 22:02:47,305 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1852627366] [2022-12-12 22:02:47,305 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-12 22:02:47,305 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-12 22:02:47,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-12 22:02:47,493 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-12 22:02:47,493 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-12 22:02:47,493 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1852627366] [2022-12-12 22:02:47,494 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1852627366] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-12 22:02:47,494 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-12 22:02:47,494 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-12 22:02:47,494 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1817543960] [2022-12-12 22:02:47,494 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-12 22:02:47,494 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-12 22:02:47,494 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-12 22:02:47,495 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-12 22:02:47,495 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-12-12 22:02:47,496 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 3 out of 60 [2022-12-12 22:02:47,496 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 80 places, 343 transitions, 4589 flow. Second operand has 5 states, 5 states have (on average 6.4) internal successors, (32), 5 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-12 22:02:47,496 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-12 22:02:47,496 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 3 of 60 [2022-12-12 22:02:47,496 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-12 22:02:47,702 INFO L130 PetriNetUnfolder]: 399/1401 cut-off events. [2022-12-12 22:02:47,703 INFO L131 PetriNetUnfolder]: For 2358/2358 co-relation queries the response was YES. [2022-12-12 22:02:47,704 INFO L83 FinitePrefix]: Finished finitePrefix Result has 9903 conditions, 1401 events. 399/1401 cut-off events. For 2358/2358 co-relation queries the response was YES. Maximal size of possible extension queue 85. Compared 10385 event pairs, 2 based on Foata normal form. 165/1342 useless extension candidates. Maximal degree in co-relation 9875. Up to 1264 conditions per place. [2022-12-12 22:02:47,707 INFO L137 encePairwiseOnDemand]: 53/60 looper letters, 147 selfloop transitions, 26 changer transitions 73/247 dead transitions. [2022-12-12 22:02:47,707 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 80 places, 247 transitions, 3717 flow [2022-12-12 22:02:47,707 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-12 22:02:47,707 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2022-12-12 22:02:47,707 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 82 transitions. [2022-12-12 22:02:47,708 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.3416666666666667 [2022-12-12 22:02:47,708 INFO L295 CegarLoopForPetriNet]: 64 programPoint places, 16 predicate places. [2022-12-12 22:02:47,708 INFO L82 GeneralOperation]: Start removeDead. Operand has 80 places, 247 transitions, 3717 flow [2022-12-12 22:02:47,711 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 60 places, 174 transitions, 2653 flow [2022-12-12 22:02:47,712 INFO L495 AbstractCegarLoop]: Abstraction has has 60 places, 174 transitions, 2653 flow [2022-12-12 22:02:47,712 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 6.4) internal successors, (32), 5 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-12 22:02:47,712 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-12 22:02:47,712 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-12 22:02:47,712 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-12-12 22:02:47,712 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2022-12-12 22:02:47,713 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-12 22:02:47,713 INFO L85 PathProgramCache]: Analyzing trace with hash -2040045793, now seen corresponding path program 1 times [2022-12-12 22:02:47,713 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-12 22:02:47,713 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [583210743] [2022-12-12 22:02:47,713 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-12 22:02:47,713 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-12 22:02:47,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-12 22:02:47,845 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-12 22:02:47,845 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-12 22:02:47,845 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [583210743] [2022-12-12 22:02:47,845 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [583210743] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-12 22:02:47,845 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-12 22:02:47,845 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-12 22:02:47,845 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1918822531] [2022-12-12 22:02:47,846 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-12 22:02:47,846 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-12-12 22:02:47,846 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-12 22:02:47,846 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-12-12 22:02:47,846 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2022-12-12 22:02:47,846 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 3 out of 60 [2022-12-12 22:02:47,847 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 60 places, 174 transitions, 2653 flow. Second operand has 6 states, 6 states have (on average 6.0) internal successors, (36), 6 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-12 22:02:47,847 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-12 22:02:47,847 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 3 of 60 [2022-12-12 22:02:47,847 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-12 22:02:47,959 INFO L130 PetriNetUnfolder]: 178/720 cut-off events. [2022-12-12 22:02:47,959 INFO L131 PetriNetUnfolder]: For 1020/1020 co-relation queries the response was YES. [2022-12-12 22:02:47,960 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5931 conditions, 720 events. 178/720 cut-off events. For 1020/1020 co-relation queries the response was YES. Maximal size of possible extension queue 42. Compared 4572 event pairs, 0 based on Foata normal form. 48/725 useless extension candidates. Maximal degree in co-relation 5900. Up to 621 conditions per place. [2022-12-12 22:02:47,962 INFO L137 encePairwiseOnDemand]: 54/60 looper letters, 161 selfloop transitions, 33 changer transitions 6/201 dead transitions. [2022-12-12 22:02:47,962 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 63 places, 201 transitions, 3477 flow [2022-12-12 22:02:47,964 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-12 22:02:47,964 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2022-12-12 22:02:47,964 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 62 transitions. [2022-12-12 22:02:47,964 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.25833333333333336 [2022-12-12 22:02:47,966 INFO L295 CegarLoopForPetriNet]: 64 programPoint places, -1 predicate places. [2022-12-12 22:02:47,966 INFO L82 GeneralOperation]: Start removeDead. Operand has 63 places, 201 transitions, 3477 flow [2022-12-12 22:02:47,969 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 63 places, 195 transitions, 3369 flow [2022-12-12 22:02:47,969 INFO L495 AbstractCegarLoop]: Abstraction has has 63 places, 195 transitions, 3369 flow [2022-12-12 22:02:47,969 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 6.0) internal successors, (36), 6 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-12 22:02:47,969 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-12 22:02:47,969 INFO L214 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] [2022-12-12 22:02:47,969 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-12-12 22:02:47,970 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2022-12-12 22:02:47,970 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-12 22:02:47,970 INFO L85 PathProgramCache]: Analyzing trace with hash -832186859, now seen corresponding path program 1 times [2022-12-12 22:02:47,970 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-12 22:02:47,970 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1823364399] [2022-12-12 22:02:47,970 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-12 22:02:47,970 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-12 22:02:47,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-12 22:02:48,080 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-12 22:02:48,081 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-12 22:02:48,082 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1823364399] [2022-12-12 22:02:48,082 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1823364399] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-12 22:02:48,083 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-12 22:02:48,083 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-12 22:02:48,083 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [977811181] [2022-12-12 22:02:48,083 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-12 22:02:48,084 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-12 22:02:48,084 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-12 22:02:48,084 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-12 22:02:48,084 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-12 22:02:48,084 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 13 out of 60 [2022-12-12 22:02:48,085 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 63 places, 195 transitions, 3369 flow. Second operand has 4 states, 4 states have (on average 17.25) internal successors, (69), 4 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-12 22:02:48,085 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-12 22:02:48,085 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 13 of 60 [2022-12-12 22:02:48,085 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-12 22:02:48,168 INFO L130 PetriNetUnfolder]: 178/680 cut-off events. [2022-12-12 22:02:48,168 INFO L131 PetriNetUnfolder]: For 1445/1445 co-relation queries the response was YES. [2022-12-12 22:02:48,168 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6127 conditions, 680 events. 178/680 cut-off events. For 1445/1445 co-relation queries the response was YES. Maximal size of possible extension queue 39. Compared 4186 event pairs, 0 based on Foata normal form. 24/661 useless extension candidates. Maximal degree in co-relation 6093. Up to 581 conditions per place. [2022-12-12 22:02:48,169 INFO L137 encePairwiseOnDemand]: 56/60 looper letters, 0 selfloop transitions, 0 changer transitions 212/212 dead transitions. [2022-12-12 22:02:48,169 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 65 places, 212 transitions, 4059 flow [2022-12-12 22:02:48,170 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-12 22:02:48,170 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2022-12-12 22:02:48,170 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 91 transitions. [2022-12-12 22:02:48,171 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.37916666666666665 [2022-12-12 22:02:48,172 INFO L295 CegarLoopForPetriNet]: 64 programPoint places, 1 predicate places. [2022-12-12 22:02:48,172 INFO L82 GeneralOperation]: Start removeDead. Operand has 65 places, 212 transitions, 4059 flow [2022-12-12 22:02:48,172 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 0 places, 0 transitions, 0 flow [2022-12-12 22:02:48,172 INFO L495 AbstractCegarLoop]: Abstraction has has 0 places, 0 transitions, 0 flow [2022-12-12 22:02:48,172 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 17.25) internal successors, (69), 4 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-12 22:02:48,175 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (5 of 6 remaining) [2022-12-12 22:02:48,175 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (4 of 6 remaining) [2022-12-12 22:02:48,175 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (3 of 6 remaining) [2022-12-12 22:02:48,175 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION (2 of 6 remaining) [2022-12-12 22:02:48,175 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 6 remaining) [2022-12-12 22:02:48,175 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 6 remaining) [2022-12-12 22:02:48,175 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-12-12 22:02:48,176 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-12 22:02:48,178 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-12-12 22:02:48,178 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-12-12 22:02:48,180 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 12.12 10:02:48 BasicIcfg [2022-12-12 22:02:48,180 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-12-12 22:02:48,181 INFO L158 Benchmark]: Toolchain (without parser) took 9774.13ms. Allocated memory was 178.3MB in the beginning and 634.4MB in the end (delta: 456.1MB). Free memory was 153.1MB in the beginning and 435.8MB in the end (delta: -282.6MB). Peak memory consumption was 174.0MB. Max. memory is 8.0GB. [2022-12-12 22:02:48,181 INFO L158 Benchmark]: CDTParser took 0.11ms. Allocated memory is still 178.3MB. Free memory is still 154.9MB. There was no memory consumed. Max. memory is 8.0GB. [2022-12-12 22:02:48,181 INFO L158 Benchmark]: CACSL2BoogieTranslator took 393.80ms. Allocated memory is still 178.3MB. Free memory was 153.1MB in the beginning and 133.2MB in the end (delta: 19.9MB). Peak memory consumption was 19.9MB. Max. memory is 8.0GB. [2022-12-12 22:02:48,181 INFO L158 Benchmark]: Boogie Procedure Inliner took 51.53ms. Allocated memory is still 178.3MB. Free memory was 133.2MB in the beginning and 130.6MB in the end (delta: 2.6MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2022-12-12 22:02:48,181 INFO L158 Benchmark]: Boogie Preprocessor took 29.99ms. Allocated memory is still 178.3MB. Free memory was 130.6MB in the beginning and 129.0MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2022-12-12 22:02:48,182 INFO L158 Benchmark]: RCFGBuilder took 353.61ms. Allocated memory is still 178.3MB. Free memory was 129.0MB in the beginning and 112.2MB in the end (delta: 16.8MB). Peak memory consumption was 16.8MB. Max. memory is 8.0GB. [2022-12-12 22:02:48,183 INFO L158 Benchmark]: TraceAbstraction took 8940.63ms. Allocated memory was 178.3MB in the beginning and 634.4MB in the end (delta: 456.1MB). Free memory was 111.2MB in the beginning and 435.8MB in the end (delta: -324.6MB). Peak memory consumption was 132.1MB. Max. memory is 8.0GB. [2022-12-12 22:02:48,184 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.11ms. Allocated memory is still 178.3MB. Free memory is still 154.9MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 393.80ms. Allocated memory is still 178.3MB. Free memory was 153.1MB in the beginning and 133.2MB in the end (delta: 19.9MB). Peak memory consumption was 19.9MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 51.53ms. Allocated memory is still 178.3MB. Free memory was 133.2MB in the beginning and 130.6MB in the end (delta: 2.6MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 29.99ms. Allocated memory is still 178.3MB. Free memory was 130.6MB in the beginning and 129.0MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * RCFGBuilder took 353.61ms. Allocated memory is still 178.3MB. Free memory was 129.0MB in the beginning and 112.2MB in the end (delta: 16.8MB). Peak memory consumption was 16.8MB. Max. memory is 8.0GB. * TraceAbstraction took 8940.63ms. Allocated memory was 178.3MB in the beginning and 634.4MB in the end (delta: 456.1MB). Free memory was 111.2MB in the beginning and 435.8MB in the end (delta: -324.6MB). Peak memory consumption was 132.1MB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 3.7s, 131 PlacesBefore, 64 PlacesAfterwards, 127 TransitionsBefore, 60 TransitionsAfterwards, 4248 CoEnabledTransitionPairs, 3 FixpointIterations, 0 TrivialSequentialCompositions, 17 ConcurrentSequentialCompositions, 36 TrivialYvCompositions, 51 ConcurrentYvCompositions, 0 ChoiceCompositions, 104 TotalNumberOfCompositions, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 4856, independent: 4575, independent conditional: 4575, independent unconditional: 0, dependent: 281, dependent conditional: 281, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 4856, independent: 4575, independent conditional: 0, independent unconditional: 4575, dependent: 281, dependent conditional: 0, dependent unconditional: 281, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 4856, independent: 4575, independent conditional: 0, independent unconditional: 4575, dependent: 281, dependent conditional: 0, dependent unconditional: 281, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 4856, independent: 4575, independent conditional: 0, independent unconditional: 4575, dependent: 281, dependent conditional: 0, dependent unconditional: 281, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 3453, independent: 3341, independent conditional: 0, independent unconditional: 3341, dependent: 112, dependent conditional: 0, dependent unconditional: 112, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 3453, independent: 3030, independent conditional: 0, independent unconditional: 3030, dependent: 423, dependent conditional: 0, dependent unconditional: 423, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 423, independent: 311, independent conditional: 0, independent unconditional: 311, dependent: 112, dependent conditional: 0, dependent unconditional: 112, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 361, independent: 170, independent conditional: 0, independent unconditional: 170, dependent: 191, dependent conditional: 0, dependent unconditional: 191, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 4856, independent: 1234, independent conditional: 0, independent unconditional: 1234, dependent: 169, dependent conditional: 0, dependent unconditional: 169, unknown: 3453, unknown conditional: 0, unknown unconditional: 3453] , Statistics on independence cache: Total cache size (in pairs): 5789, Positive cache size: 5677, Positive conditional cache size: 0, Positive unconditional cache size: 5677, Negative cache size: 112, Negative conditional cache size: 0, Negative unconditional cache size: 112, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0, Eliminated conditions: 0, Maximal queried relation: -1 - PositiveResult [Line: 19]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 19]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 19]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 19]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 5 procedures, 184 locations, 6 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.1s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 8.8s, OverallIterations: 9, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 3.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 3.9s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 493 SdHoareTripleChecker+Valid, 0.6s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 493 mSDsluCounter, 5 SdHoareTripleChecker+Invalid, 0.5s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 171 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 982 IncrementalHoareTripleChecker+Invalid, 1153 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 171 mSolverCounterUnsat, 5 mSDtfsCounter, 982 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 36 GetRequests, 13 SyntacticMatches, 2 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=4589occurred in iteration=6, InterpolantAutomatonStates: 34, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 9 MinimizatonAttempts, 5993 StatesRemovedByMinimization, 9 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.9s InterpolantComputationTime, 128 NumberOfCodeBlocks, 128 NumberOfCodeBlocksAsserted, 9 NumberOfCheckSat, 119 ConstructedInterpolants, 0 QuantifiedInterpolants, 710 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 9 InterpolantComputations, 9 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 - AllSpecificationsHoldResult: All specifications hold 4 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2022-12-12 22:02:48,196 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request...