/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-RepeatedSemanticLbeWithPredicates.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/goblint-regression/13-privatized_31-traces-mine-vs-mutex_true.i -------------------------------------------------------------------------------- This is Ultimate 0.2.2-wip.dk.repeated-lipton-8d0d62b [2022-12-06 04:58:17,757 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-06 04:58:17,758 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-06 04:58:17,789 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-06 04:58:17,789 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-06 04:58:17,790 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-06 04:58:17,791 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-06 04:58:17,792 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-06 04:58:17,793 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-06 04:58:17,794 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-06 04:58:17,794 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-06 04:58:17,811 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-06 04:58:17,812 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-06 04:58:17,812 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-06 04:58:17,813 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-06 04:58:17,814 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-06 04:58:17,814 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-06 04:58:17,815 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-06 04:58:17,816 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-06 04:58:17,817 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-06 04:58:17,818 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-06 04:58:17,820 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-06 04:58:17,821 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-06 04:58:17,821 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-06 04:58:17,824 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-06 04:58:17,825 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-06 04:58:17,825 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-06 04:58:17,826 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-06 04:58:17,826 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-06 04:58:17,827 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-06 04:58:17,827 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-06 04:58:17,828 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-06 04:58:17,828 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-06 04:58:17,829 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-06 04:58:17,830 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-06 04:58:17,830 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-06 04:58:17,831 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-06 04:58:17,831 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-06 04:58:17,831 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-06 04:58:17,832 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-06 04:58:17,833 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-06 04:58:17,842 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-RepeatedSemanticLbeWithPredicates.epf [2022-12-06 04:58:17,877 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-06 04:58:17,878 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-06 04:58:17,879 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-12-06 04:58:17,880 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-12-06 04:58:17,880 INFO L138 SettingsManager]: * Use SBE=true [2022-12-06 04:58:17,881 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-06 04:58:17,881 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-06 04:58:17,881 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-06 04:58:17,881 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-06 04:58:17,881 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-06 04:58:17,882 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-06 04:58:17,882 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-06 04:58:17,882 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-06 04:58:17,883 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-06 04:58:17,883 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-06 04:58:17,883 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-06 04:58:17,883 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-06 04:58:17,883 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-06 04:58:17,883 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-12-06 04:58:17,884 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-12-06 04:58:17,884 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-06 04:58:17,884 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-06 04:58:17,884 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-06 04:58:17,885 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-06 04:58:17,885 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-06 04:58:17,885 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-12-06 04:58:17,885 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-06 04:58:17,885 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=REPEATED_LIPTON_PN [2022-12-06 04:58:17,885 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-12-06 04:58:18,192 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-06 04:58:18,224 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-06 04:58:18,226 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-06 04:58:18,227 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-06 04:58:18,227 INFO L275 PluginConnector]: CDTParser initialized [2022-12-06 04:58:18,228 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/goblint-regression/13-privatized_31-traces-mine-vs-mutex_true.i [2022-12-06 04:58:19,374 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-06 04:58:19,611 INFO L351 CDTParser]: Found 1 translation units. [2022-12-06 04:58:19,611 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/13-privatized_31-traces-mine-vs-mutex_true.i [2022-12-06 04:58:19,637 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/86463a208/f15332582dbc409b931d4cb1662d4e83/FLAGd229e6be2 [2022-12-06 04:58:19,651 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/86463a208/f15332582dbc409b931d4cb1662d4e83 [2022-12-06 04:58:19,653 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-06 04:58:19,654 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-12-06 04:58:19,655 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-06 04:58:19,655 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-06 04:58:19,657 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-06 04:58:19,657 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.12 04:58:19" (1/1) ... [2022-12-06 04:58:19,658 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6cb52525 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 04:58:19, skipping insertion in model container [2022-12-06 04:58:19,658 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.12 04:58:19" (1/1) ... [2022-12-06 04:58:19,663 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-06 04:58:19,704 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-06 04:58:19,795 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_31-traces-mine-vs-mutex_true.i[1097,1110] [2022-12-06 04:58:19,909 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-06 04:58:19,920 INFO L203 MainTranslator]: Completed pre-run [2022-12-06 04:58:19,930 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_31-traces-mine-vs-mutex_true.i[1097,1110] [2022-12-06 04:58:19,963 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-06 04:58:19,992 INFO L208 MainTranslator]: Completed translation [2022-12-06 04:58:19,993 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 04:58:19 WrapperNode [2022-12-06 04:58:19,993 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-06 04:58:19,994 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-06 04:58:19,994 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-06 04:58:19,995 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-06 04:58:19,999 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 04:58:19" (1/1) ... [2022-12-06 04:58:20,021 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 04:58:19" (1/1) ... [2022-12-06 04:58:20,039 INFO L138 Inliner]: procedures = 162, calls = 31, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 55 [2022-12-06 04:58:20,039 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-06 04:58:20,040 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-06 04:58:20,040 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-06 04:58:20,040 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-06 04:58:20,045 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 04:58:19" (1/1) ... [2022-12-06 04:58:20,045 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 04:58:19" (1/1) ... [2022-12-06 04:58:20,050 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 04:58:19" (1/1) ... [2022-12-06 04:58:20,050 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 04:58:19" (1/1) ... [2022-12-06 04:58:20,062 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 04:58:19" (1/1) ... [2022-12-06 04:58:20,063 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 04:58:19" (1/1) ... [2022-12-06 04:58:20,064 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 04:58:19" (1/1) ... [2022-12-06 04:58:20,064 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 04:58:19" (1/1) ... [2022-12-06 04:58:20,066 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-06 04:58:20,066 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-06 04:58:20,066 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-06 04:58:20,066 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-06 04:58:20,067 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 04:58:19" (1/1) ... [2022-12-06 04:58:20,070 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-06 04:58:20,079 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-12-06 04:58:20,090 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) [2022-12-06 04:58:20,096 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 [2022-12-06 04:58:20,123 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-12-06 04:58:20,124 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-12-06 04:58:20,124 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2022-12-06 04:58:20,125 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-06 04:58:20,125 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-12-06 04:58:20,125 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2022-12-06 04:58:20,126 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2022-12-06 04:58:20,126 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-12-06 04:58:20,126 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-06 04:58:20,126 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-06 04:58:20,126 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-06 04:58:20,127 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2022-12-06 04:58:20,248 INFO L236 CfgBuilder]: Building ICFG [2022-12-06 04:58:20,250 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-06 04:58:20,498 INFO L277 CfgBuilder]: Performing block encoding [2022-12-06 04:58:20,508 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-06 04:58:20,508 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2022-12-06 04:58:20,509 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 04:58:20 BoogieIcfgContainer [2022-12-06 04:58:20,510 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-06 04:58:20,511 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-06 04:58:20,511 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-06 04:58:20,513 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-06 04:58:20,513 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.12 04:58:19" (1/3) ... [2022-12-06 04:58:20,514 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@581e3120 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.12 04:58:20, skipping insertion in model container [2022-12-06 04:58:20,514 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 04:58:19" (2/3) ... [2022-12-06 04:58:20,514 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@581e3120 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.12 04:58:20, skipping insertion in model container [2022-12-06 04:58:20,514 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 04:58:20" (3/3) ... [2022-12-06 04:58:20,515 INFO L112 eAbstractionObserver]: Analyzing ICFG 13-privatized_31-traces-mine-vs-mutex_true.i [2022-12-06 04:58:20,529 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-06 04:58:20,529 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-12-06 04:58:20,529 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-12-06 04:58:20,577 INFO L144 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2022-12-06 04:58:20,604 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 78 places, 75 transitions, 158 flow [2022-12-06 04:58:20,647 INFO L130 PetriNetUnfolder]: 1/74 cut-off events. [2022-12-06 04:58:20,648 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2022-12-06 04:58:20,651 INFO L83 FinitePrefix]: Finished finitePrefix Result has 79 conditions, 74 events. 1/74 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 44 event pairs, 0 based on Foata normal form. 0/72 useless extension candidates. Maximal degree in co-relation 38. Up to 2 conditions per place. [2022-12-06 04:58:20,651 INFO L82 GeneralOperation]: Start removeDead. Operand has 78 places, 75 transitions, 158 flow [2022-12-06 04:58:20,653 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 65 places, 61 transitions, 125 flow [2022-12-06 04:58:20,654 INFO L195 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-12-06 04:58:20,671 INFO L167 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 65 places, 61 transitions, 125 flow [2022-12-06 04:58:20,674 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 65 places, 61 transitions, 125 flow [2022-12-06 04:58:20,688 INFO L130 PetriNetUnfolder]: 0/61 cut-off events. [2022-12-06 04:58:20,688 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-06 04:58:20,688 INFO L83 FinitePrefix]: Finished finitePrefix Result has 65 conditions, 61 events. 0/61 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 27 event pairs, 0 based on Foata normal form. 0/61 useless extension candidates. Maximal degree in co-relation 0. Up to 1 conditions per place. [2022-12-06 04:58:20,689 INFO L184 LiptonReduction]: Starting Lipton reduction on Petri net that has 65 places, 61 transitions, 125 flow [2022-12-06 04:58:20,689 INFO L188 LiptonReduction]: Number of co-enabled transitions 504 [2022-12-06 04:58:23,442 INFO L203 LiptonReduction]: Total number of compositions: 47 [2022-12-06 04:58:23,485 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-06 04:58:23,489 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=REPEATED_LIPTON_PN, 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;@28e5a22, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, Conditionality=CONDITIONAL_DISJUNCTIVE, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-12-06 04:58:23,490 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2022-12-06 04:58:23,496 INFO L130 PetriNetUnfolder]: 0/13 cut-off events. [2022-12-06 04:58:23,496 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-06 04:58:23,496 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-06 04:58:23,497 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2022-12-06 04:58:23,497 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2022-12-06 04:58:23,501 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-06 04:58:23,501 INFO L85 PathProgramCache]: Analyzing trace with hash 2076939218, now seen corresponding path program 1 times [2022-12-06 04:58:23,508 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-06 04:58:23,508 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1080135561] [2022-12-06 04:58:23,509 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-06 04:58:23,509 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-06 04:58:23,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-06 04:58:23,735 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-06 04:58:23,735 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-06 04:58:23,735 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1080135561] [2022-12-06 04:58:23,736 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1080135561] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-06 04:58:23,736 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-06 04:58:23,736 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-12-06 04:58:23,737 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [988834926] [2022-12-06 04:58:23,737 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-06 04:58:23,742 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-06 04:58:23,743 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-06 04:58:23,755 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-06 04:58:23,755 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-06 04:58:23,756 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 5 out of 17 [2022-12-06 04:58:23,757 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 21 places, 17 transitions, 37 flow. Second operand has 3 states, 3 states have (on average 6.666666666666667) internal successors, (20), 3 states have internal predecessors, (20), 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) [2022-12-06 04:58:23,757 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-06 04:58:23,757 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 5 of 17 [2022-12-06 04:58:23,757 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-06 04:58:23,814 INFO L130 PetriNetUnfolder]: 17/55 cut-off events. [2022-12-06 04:58:23,814 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-06 04:58:23,814 INFO L83 FinitePrefix]: Finished finitePrefix Result has 106 conditions, 55 events. 17/55 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 146 event pairs, 9 based on Foata normal form. 4/53 useless extension candidates. Maximal degree in co-relation 97. Up to 28 conditions per place. [2022-12-06 04:58:23,815 INFO L137 encePairwiseOnDemand]: 14/17 looper letters, 11 selfloop transitions, 2 changer transitions 2/19 dead transitions. [2022-12-06 04:58:23,815 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 23 places, 19 transitions, 69 flow [2022-12-06 04:58:23,816 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-06 04:58:23,818 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-12-06 04:58:23,822 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 30 transitions. [2022-12-06 04:58:23,823 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.5882352941176471 [2022-12-06 04:58:23,824 INFO L175 Difference]: Start difference. First operand has 21 places, 17 transitions, 37 flow. Second operand 3 states and 30 transitions. [2022-12-06 04:58:23,825 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 23 places, 19 transitions, 69 flow [2022-12-06 04:58:23,826 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 22 places, 19 transitions, 68 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-12-06 04:58:23,827 INFO L231 Difference]: Finished difference. Result has 23 places, 15 transitions, 40 flow [2022-12-06 04:58:23,828 INFO L276 CegarLoopForPetriNet]: {PETRI_ALPHABET=17, PETRI_DIFFERENCE_MINUEND_FLOW=36, PETRI_DIFFERENCE_MINUEND_PLACES=20, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=17, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=15, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=40, PETRI_PLACES=23, PETRI_TRANSITIONS=15} [2022-12-06 04:58:23,830 INFO L294 CegarLoopForPetriNet]: 21 programPoint places, 2 predicate places. [2022-12-06 04:58:23,831 WARN L163 eatedLiptonReduction]: Counterexample is not a run of mAbstraction. Replaying acceptance of the word... [2022-12-06 04:58:23,832 INFO L89 Accepts]: Start accepts. Operand has 23 places, 15 transitions, 40 flow [2022-12-06 04:58:23,834 INFO L95 Accepts]: Finished accepts. [2022-12-06 04:58:23,835 INFO L195 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-12-06 04:58:23,835 INFO L167 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 23 places, 15 transitions, 40 flow [2022-12-06 04:58:23,838 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 21 places, 15 transitions, 40 flow [2022-12-06 04:58:23,845 INFO L130 PetriNetUnfolder]: 0/15 cut-off events. [2022-12-06 04:58:23,845 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-06 04:58:23,845 INFO L83 FinitePrefix]: Finished finitePrefix Result has 24 conditions, 15 events. 0/15 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 12 event pairs, 0 based on Foata normal form. 0/15 useless extension candidates. Maximal degree in co-relation 0. Up to 3 conditions per place. [2022-12-06 04:58:23,846 INFO L184 LiptonReduction]: Starting Lipton reduction on Petri net that has 21 places, 15 transitions, 40 flow [2022-12-06 04:58:23,846 INFO L188 LiptonReduction]: Number of co-enabled transitions 74 [2022-12-06 04:58:23,922 INFO L203 LiptonReduction]: Total number of compositions: 1 [2022-12-06 04:58:23,924 INFO L143 eatedLiptonReduction]: Time needed for LBE in milliseconds: 93 [2022-12-06 04:58:23,927 INFO L495 AbstractCegarLoop]: Abstraction has has 20 places, 14 transitions, 38 flow [2022-12-06 04:58:23,927 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 6.666666666666667) internal successors, (20), 3 states have internal predecessors, (20), 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) [2022-12-06 04:58:23,927 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-06 04:58:23,927 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-06 04:58:23,927 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-06 04:58:23,928 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2022-12-06 04:58:23,928 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-06 04:58:23,928 INFO L85 PathProgramCache]: Analyzing trace with hash -1221234487, now seen corresponding path program 1 times [2022-12-06 04:58:23,928 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-06 04:58:23,928 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [974605714] [2022-12-06 04:58:23,928 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-06 04:58:23,928 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-06 04:58:23,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-06 04:58:24,083 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-06 04:58:24,084 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-06 04:58:24,084 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [974605714] [2022-12-06 04:58:24,084 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [974605714] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-06 04:58:24,084 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-06 04:58:24,084 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-06 04:58:24,085 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1421274393] [2022-12-06 04:58:24,085 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-06 04:58:24,086 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-06 04:58:24,086 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-06 04:58:24,087 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-06 04:58:24,087 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-12-06 04:58:24,087 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 0 out of 14 [2022-12-06 04:58:24,087 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 20 places, 14 transitions, 38 flow. Second operand has 4 states, 4 states have (on average 2.25) internal successors, (9), 3 states have internal predecessors, (9), 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) [2022-12-06 04:58:24,087 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-06 04:58:24,088 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 0 of 14 [2022-12-06 04:58:24,088 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-06 04:58:24,134 INFO L130 PetriNetUnfolder]: 14/44 cut-off events. [2022-12-06 04:58:24,134 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-06 04:58:24,135 INFO L83 FinitePrefix]: Finished finitePrefix Result has 102 conditions, 44 events. 14/44 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 70 event pairs, 2 based on Foata normal form. 8/52 useless extension candidates. Maximal degree in co-relation 91. Up to 35 conditions per place. [2022-12-06 04:58:24,135 INFO L137 encePairwiseOnDemand]: 10/14 looper letters, 12 selfloop transitions, 4 changer transitions 0/16 dead transitions. [2022-12-06 04:58:24,135 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 23 places, 16 transitions, 74 flow [2022-12-06 04:58:24,138 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-06 04:58:24,138 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2022-12-06 04:58:24,139 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 18 transitions. [2022-12-06 04:58:24,140 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.32142857142857145 [2022-12-06 04:58:24,140 INFO L175 Difference]: Start difference. First operand has 20 places, 14 transitions, 38 flow. Second operand 4 states and 18 transitions. [2022-12-06 04:58:24,140 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 23 places, 16 transitions, 74 flow [2022-12-06 04:58:24,141 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 21 places, 16 transitions, 70 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-12-06 04:58:24,141 INFO L231 Difference]: Finished difference. Result has 21 places, 14 transitions, 42 flow [2022-12-06 04:58:24,141 INFO L276 CegarLoopForPetriNet]: {PETRI_ALPHABET=14, PETRI_DIFFERENCE_MINUEND_FLOW=34, PETRI_DIFFERENCE_MINUEND_PLACES=18, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=14, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=10, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=42, PETRI_PLACES=21, PETRI_TRANSITIONS=14} [2022-12-06 04:58:24,142 INFO L294 CegarLoopForPetriNet]: 21 programPoint places, 0 predicate places. [2022-12-06 04:58:24,142 WARN L163 eatedLiptonReduction]: Counterexample is not a run of mAbstraction. Replaying acceptance of the word... [2022-12-06 04:58:24,142 INFO L89 Accepts]: Start accepts. Operand has 21 places, 14 transitions, 42 flow [2022-12-06 04:58:24,143 INFO L95 Accepts]: Finished accepts. [2022-12-06 04:58:24,143 INFO L195 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-12-06 04:58:24,143 INFO L167 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 21 places, 14 transitions, 42 flow [2022-12-06 04:58:24,144 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 21 places, 14 transitions, 42 flow [2022-12-06 04:58:24,147 INFO L130 PetriNetUnfolder]: 0/16 cut-off events. [2022-12-06 04:58:24,147 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-06 04:58:24,148 INFO L83 FinitePrefix]: Finished finitePrefix Result has 28 conditions, 16 events. 0/16 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 7 event pairs, 0 based on Foata normal form. 0/16 useless extension candidates. Maximal degree in co-relation 0. Up to 3 conditions per place. [2022-12-06 04:58:24,148 INFO L184 LiptonReduction]: Starting Lipton reduction on Petri net that has 21 places, 14 transitions, 42 flow [2022-12-06 04:58:24,148 INFO L188 LiptonReduction]: Number of co-enabled transitions 28 [2022-12-06 04:58:24,340 INFO L203 LiptonReduction]: Total number of compositions: 5 [2022-12-06 04:58:24,342 INFO L143 eatedLiptonReduction]: Time needed for LBE in milliseconds: 200 [2022-12-06 04:58:24,343 INFO L495 AbstractCegarLoop]: Abstraction has has 16 places, 9 transitions, 32 flow [2022-12-06 04:58:24,343 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 2.25) internal successors, (9), 3 states have internal predecessors, (9), 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) [2022-12-06 04:58:24,344 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-06 04:58:24,344 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-06 04:58:24,344 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-12-06 04:58:24,344 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2022-12-06 04:58:24,345 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-06 04:58:24,345 INFO L85 PathProgramCache]: Analyzing trace with hash 1858865379, now seen corresponding path program 1 times [2022-12-06 04:58:24,346 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-06 04:58:24,347 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [861500369] [2022-12-06 04:58:24,347 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-06 04:58:24,347 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-06 04:58:24,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-06 04:58:24,562 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-06 04:58:24,562 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-06 04:58:24,562 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [861500369] [2022-12-06 04:58:24,562 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [861500369] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-06 04:58:24,562 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-06 04:58:24,563 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-06 04:58:24,563 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [923787342] [2022-12-06 04:58:24,563 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-06 04:58:24,563 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-06 04:58:24,563 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-06 04:58:24,564 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-06 04:58:24,564 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-12-06 04:58:24,564 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 0 out of 9 [2022-12-06 04:58:24,564 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 16 places, 9 transitions, 32 flow. Second operand has 4 states, 4 states have (on average 2.25) internal successors, (9), 3 states have internal predecessors, (9), 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) [2022-12-06 04:58:24,564 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-06 04:58:24,565 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 0 of 9 [2022-12-06 04:58:24,565 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-06 04:58:24,582 INFO L130 PetriNetUnfolder]: 2/17 cut-off events. [2022-12-06 04:58:24,583 INFO L131 PetriNetUnfolder]: For 3/3 co-relation queries the response was YES. [2022-12-06 04:58:24,583 INFO L83 FinitePrefix]: Finished finitePrefix Result has 49 conditions, 17 events. 2/17 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 16 event pairs, 2 based on Foata normal form. 4/21 useless extension candidates. Maximal degree in co-relation 38. Up to 9 conditions per place. [2022-12-06 04:58:24,583 INFO L137 encePairwiseOnDemand]: 1/9 looper letters, 1 selfloop transitions, 8 changer transitions 0/9 dead transitions. [2022-12-06 04:58:24,583 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 19 places, 9 transitions, 50 flow [2022-12-06 04:58:24,584 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-06 04:58:24,584 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2022-12-06 04:58:24,584 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 12 transitions. [2022-12-06 04:58:24,584 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.3333333333333333 [2022-12-06 04:58:24,584 INFO L175 Difference]: Start difference. First operand has 16 places, 9 transitions, 32 flow. Second operand 4 states and 12 transitions. [2022-12-06 04:58:24,584 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 19 places, 9 transitions, 50 flow [2022-12-06 04:58:24,585 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 17 places, 9 transitions, 46 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-12-06 04:58:24,585 INFO L231 Difference]: Finished difference. Result has 17 places, 9 transitions, 44 flow [2022-12-06 04:58:24,585 INFO L276 CegarLoopForPetriNet]: {PETRI_ALPHABET=9, PETRI_DIFFERENCE_MINUEND_FLOW=28, PETRI_DIFFERENCE_MINUEND_PLACES=14, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=9, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=44, PETRI_PLACES=17, PETRI_TRANSITIONS=9} [2022-12-06 04:58:24,586 INFO L294 CegarLoopForPetriNet]: 21 programPoint places, -4 predicate places. [2022-12-06 04:58:24,586 WARN L163 eatedLiptonReduction]: Counterexample is not a run of mAbstraction. Replaying acceptance of the word... [2022-12-06 04:58:24,586 INFO L89 Accepts]: Start accepts. Operand has 17 places, 9 transitions, 44 flow [2022-12-06 04:58:24,586 INFO L95 Accepts]: Finished accepts. [2022-12-06 04:58:24,587 INFO L195 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-12-06 04:58:24,587 INFO L167 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 17 places, 9 transitions, 44 flow [2022-12-06 04:58:24,587 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 17 places, 9 transitions, 44 flow [2022-12-06 04:58:24,590 INFO L130 PetriNetUnfolder]: 2/17 cut-off events. [2022-12-06 04:58:24,590 INFO L131 PetriNetUnfolder]: For 3/3 co-relation queries the response was YES. [2022-12-06 04:58:24,590 INFO L83 FinitePrefix]: Finished finitePrefix Result has 44 conditions, 17 events. 2/17 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 16 event pairs, 2 based on Foata normal form. 0/17 useless extension candidates. Maximal degree in co-relation 35. Up to 8 conditions per place. [2022-12-06 04:58:24,591 INFO L184 LiptonReduction]: Starting Lipton reduction on Petri net that has 17 places, 9 transitions, 44 flow [2022-12-06 04:58:24,591 INFO L188 LiptonReduction]: Number of co-enabled transitions 0 [2022-12-06 04:58:24,684 INFO L203 LiptonReduction]: Total number of compositions: 3 [2022-12-06 04:58:24,685 INFO L143 eatedLiptonReduction]: Time needed for LBE in milliseconds: 99 [2022-12-06 04:58:24,686 INFO L495 AbstractCegarLoop]: Abstraction has has 14 places, 6 transitions, 32 flow [2022-12-06 04:58:24,686 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 2.25) internal successors, (9), 3 states have internal predecessors, (9), 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) [2022-12-06 04:58:24,686 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-06 04:58:24,686 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2022-12-06 04:58:24,686 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-12-06 04:58:24,686 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2022-12-06 04:58:24,687 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-06 04:58:24,687 INFO L85 PathProgramCache]: Analyzing trace with hash -1178987348, now seen corresponding path program 1 times [2022-12-06 04:58:24,687 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-06 04:58:24,687 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1242825521] [2022-12-06 04:58:24,687 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-06 04:58:24,687 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-06 04:58:24,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-06 04:58:24,827 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-06 04:58:24,828 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-06 04:58:24,828 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1242825521] [2022-12-06 04:58:24,828 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1242825521] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-06 04:58:24,828 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-06 04:58:24,828 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-06 04:58:24,828 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [748665728] [2022-12-06 04:58:24,829 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-06 04:58:24,829 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-06 04:58:24,829 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-06 04:58:24,831 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-06 04:58:24,831 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-06 04:58:24,831 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 0 out of 6 [2022-12-06 04:58:24,832 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 14 places, 6 transitions, 32 flow. Second operand has 4 states, 3 states have (on average 2.0) internal successors, (6), 3 states have internal predecessors, (6), 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) [2022-12-06 04:58:24,832 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-06 04:58:24,832 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 0 of 6 [2022-12-06 04:58:24,832 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-06 04:58:24,846 INFO L130 PetriNetUnfolder]: 2/9 cut-off events. [2022-12-06 04:58:24,846 INFO L131 PetriNetUnfolder]: For 3/3 co-relation queries the response was YES. [2022-12-06 04:58:24,847 INFO L83 FinitePrefix]: Finished finitePrefix Result has 37 conditions, 9 events. 2/9 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 6 event pairs, 1 based on Foata normal form. 1/10 useless extension candidates. Maximal degree in co-relation 25. Up to 8 conditions per place. [2022-12-06 04:58:24,847 INFO L137 encePairwiseOnDemand]: 2/6 looper letters, 0 selfloop transitions, 0 changer transitions 6/6 dead transitions. [2022-12-06 04:58:24,850 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 15 places, 6 transitions, 41 flow [2022-12-06 04:58:24,854 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-06 04:58:24,854 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2022-12-06 04:58:24,856 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 7 transitions. [2022-12-06 04:58:24,857 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.2916666666666667 [2022-12-06 04:58:24,857 INFO L175 Difference]: Start difference. First operand has 14 places, 6 transitions, 32 flow. Second operand 4 states and 7 transitions. [2022-12-06 04:58:24,857 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 15 places, 6 transitions, 41 flow [2022-12-06 04:58:24,857 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 12 places, 6 transitions, 35 flow, removed 0 selfloop flow, removed 3 redundant places. [2022-12-06 04:58:24,859 INFO L231 Difference]: Finished difference. Result has 12 places, 0 transitions, 0 flow [2022-12-06 04:58:24,859 INFO L276 CegarLoopForPetriNet]: {PETRI_ALPHABET=6, PETRI_DIFFERENCE_MINUEND_FLOW=19, PETRI_DIFFERENCE_MINUEND_PLACES=9, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=5, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=5, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=0, PETRI_PLACES=12, PETRI_TRANSITIONS=0} [2022-12-06 04:58:24,860 INFO L294 CegarLoopForPetriNet]: 21 programPoint places, -9 predicate places. [2022-12-06 04:58:24,860 INFO L195 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-12-06 04:58:24,860 INFO L167 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 12 places, 0 transitions, 0 flow [2022-12-06 04:58:24,861 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 0 places, 0 transitions, 0 flow [2022-12-06 04:58:24,861 INFO L130 PetriNetUnfolder]: 0/0 cut-off events. [2022-12-06 04:58:24,861 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-06 04:58:24,861 INFO L83 FinitePrefix]: Finished finitePrefix Result has 0 conditions, 0 events. 0/0 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 0. Compared 0 event pairs, 0 based on Foata normal form. 0/0 useless extension candidates. Maximal degree in co-relation 0. Up to 0 conditions per place. [2022-12-06 04:58:24,861 INFO L184 LiptonReduction]: Starting Lipton reduction on Petri net that has 0 places, 0 transitions, 0 flow [2022-12-06 04:58:24,862 INFO L188 LiptonReduction]: Number of co-enabled transitions 0 [2022-12-06 04:58:24,862 INFO L203 LiptonReduction]: Total number of compositions: 0 [2022-12-06 04:58:24,867 INFO L143 eatedLiptonReduction]: Time needed for LBE in milliseconds: 7 [2022-12-06 04:58:24,868 INFO L495 AbstractCegarLoop]: Abstraction has has 0 places, 0 transitions, 0 flow [2022-12-06 04:58:24,868 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 2.0) internal successors, (6), 3 states have internal predecessors, (6), 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) [2022-12-06 04:58:24,870 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (1 of 2 remaining) [2022-12-06 04:58:24,870 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 2 remaining) [2022-12-06 04:58:24,871 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-12-06 04:58:24,871 INFO L458 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2022-12-06 04:58:24,874 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-12-06 04:58:24,874 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-12-06 04:58:24,876 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 06.12 04:58:24 BasicIcfg [2022-12-06 04:58:24,876 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-12-06 04:58:24,877 INFO L158 Benchmark]: Toolchain (without parser) took 5222.64ms. Allocated memory was 189.8MB in the beginning and 263.2MB in the end (delta: 73.4MB). Free memory was 165.6MB in the beginning and 177.6MB in the end (delta: -12.1MB). Peak memory consumption was 62.4MB. Max. memory is 8.0GB. [2022-12-06 04:58:24,877 INFO L158 Benchmark]: CDTParser took 0.13ms. Allocated memory is still 189.8MB. Free memory was 166.8MB in the beginning and 166.7MB in the end (delta: 97.3kB). There was no memory consumed. Max. memory is 8.0GB. [2022-12-06 04:58:24,877 INFO L158 Benchmark]: CACSL2BoogieTranslator took 338.04ms. Allocated memory is still 189.8MB. Free memory was 165.0MB in the beginning and 146.0MB in the end (delta: 19.0MB). Peak memory consumption was 18.9MB. Max. memory is 8.0GB. [2022-12-06 04:58:24,878 INFO L158 Benchmark]: Boogie Procedure Inliner took 44.95ms. Allocated memory is still 189.8MB. Free memory was 146.0MB in the beginning and 144.1MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2022-12-06 04:58:24,878 INFO L158 Benchmark]: Boogie Preprocessor took 25.90ms. Allocated memory is still 189.8MB. Free memory was 144.1MB in the beginning and 142.5MB in the end (delta: 1.6MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2022-12-06 04:58:24,878 INFO L158 Benchmark]: RCFGBuilder took 443.40ms. Allocated memory is still 189.8MB. Free memory was 142.5MB in the beginning and 128.9MB in the end (delta: 13.6MB). Peak memory consumption was 13.6MB. Max. memory is 8.0GB. [2022-12-06 04:58:24,878 INFO L158 Benchmark]: TraceAbstraction took 4365.53ms. Allocated memory was 189.8MB in the beginning and 263.2MB in the end (delta: 73.4MB). Free memory was 127.8MB in the beginning and 177.6MB in the end (delta: -49.8MB). Peak memory consumption was 24.6MB. Max. memory is 8.0GB. [2022-12-06 04:58:24,881 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.13ms. Allocated memory is still 189.8MB. Free memory was 166.8MB in the beginning and 166.7MB in the end (delta: 97.3kB). There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 338.04ms. Allocated memory is still 189.8MB. Free memory was 165.0MB in the beginning and 146.0MB in the end (delta: 19.0MB). Peak memory consumption was 18.9MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 44.95ms. Allocated memory is still 189.8MB. Free memory was 146.0MB in the beginning and 144.1MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 25.90ms. Allocated memory is still 189.8MB. Free memory was 144.1MB in the beginning and 142.5MB in the end (delta: 1.6MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * RCFGBuilder took 443.40ms. Allocated memory is still 189.8MB. Free memory was 142.5MB in the beginning and 128.9MB in the end (delta: 13.6MB). Peak memory consumption was 13.6MB. Max. memory is 8.0GB. * TraceAbstraction took 4365.53ms. Allocated memory was 189.8MB in the beginning and 263.2MB in the end (delta: 73.4MB). Free memory was 127.8MB in the beginning and 177.6MB in the end (delta: -49.8MB). Peak memory consumption was 24.6MB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 2.8s, 65 PlacesBefore, 21 PlacesAfterwards, 61 TransitionsBefore, 17 TransitionsAfterwards, 504 CoEnabledTransitionPairs, 2 FixpointIterations, 0 TrivialSequentialCompositions, 1 ConcurrentSequentialCompositions, 27 TrivialYvCompositions, 19 ConcurrentYvCompositions, 0 ChoiceCompositions, 47 TotalNumberOfCompositions, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 379, independent: 326, independent conditional: 326, independent unconditional: 0, dependent: 53, dependent conditional: 53, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 379, independent: 326, independent conditional: 0, independent unconditional: 326, dependent: 53, dependent conditional: 0, dependent unconditional: 53, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 379, independent: 326, independent conditional: 0, independent unconditional: 326, dependent: 53, dependent conditional: 0, dependent unconditional: 53, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 379, independent: 326, independent conditional: 0, independent unconditional: 326, dependent: 53, dependent conditional: 0, dependent unconditional: 53, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 316, independent: 282, independent conditional: 0, independent unconditional: 282, dependent: 34, dependent conditional: 0, dependent unconditional: 34, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 316, independent: 266, independent conditional: 0, independent unconditional: 266, dependent: 50, dependent conditional: 0, dependent unconditional: 50, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 50, independent: 16, independent conditional: 0, independent unconditional: 16, dependent: 34, dependent conditional: 0, dependent unconditional: 34, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 84, independent: 21, independent conditional: 0, independent unconditional: 21, dependent: 63, dependent conditional: 0, dependent unconditional: 63, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 379, independent: 44, independent conditional: 0, independent unconditional: 44, dependent: 19, dependent conditional: 0, dependent unconditional: 19, unknown: 316, unknown conditional: 0, unknown unconditional: 316] , Statistics on independence cache: Total cache size (in pairs): 424, Positive cache size: 390, Positive conditional cache size: 0, Positive unconditional cache size: 390, Negative cache size: 34, Negative conditional cache size: 0, Negative unconditional cache size: 34, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0, Eliminated conditions: 0, Maximal queried relation: -1 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 0.1s, 21 PlacesBefore, 20 PlacesAfterwards, 15 TransitionsBefore, 14 TransitionsAfterwards, 74 CoEnabledTransitionPairs, 2 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 1 ConcurrentYvCompositions, 0 ChoiceCompositions, 1 TotalNumberOfCompositions, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 80, independent: 43, independent conditional: 43, independent unconditional: 0, dependent: 37, dependent conditional: 37, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 80, independent: 43, independent conditional: 8, independent unconditional: 35, dependent: 37, dependent conditional: 2, dependent unconditional: 35, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 80, independent: 43, independent conditional: 8, independent unconditional: 35, dependent: 37, dependent conditional: 2, dependent unconditional: 35, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 80, independent: 43, independent conditional: 8, independent unconditional: 35, dependent: 37, dependent conditional: 2, dependent unconditional: 35, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 41, independent: 24, independent conditional: 5, independent unconditional: 19, dependent: 17, dependent conditional: 1, dependent unconditional: 16, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 41, independent: 12, independent conditional: 0, independent unconditional: 12, dependent: 29, dependent conditional: 0, dependent unconditional: 29, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 29, independent: 12, independent conditional: 1, independent unconditional: 11, dependent: 17, dependent conditional: 1, dependent unconditional: 16, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 52, independent: 17, independent conditional: 2, independent unconditional: 16, dependent: 35, dependent conditional: 1, dependent unconditional: 34, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 80, independent: 19, independent conditional: 3, independent unconditional: 16, dependent: 20, dependent conditional: 1, dependent unconditional: 19, unknown: 41, unknown conditional: 6, unknown unconditional: 35] , Statistics on independence cache: Total cache size (in pairs): 41, Positive cache size: 24, Positive conditional cache size: 5, Positive unconditional cache size: 19, Negative cache size: 17, Negative conditional cache size: 1, Negative unconditional cache size: 16, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0, Eliminated conditions: 0, Maximal queried relation: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 0.2s, 21 PlacesBefore, 16 PlacesAfterwards, 14 TransitionsBefore, 9 TransitionsAfterwards, 28 CoEnabledTransitionPairs, 2 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 2 TrivialYvCompositions, 3 ConcurrentYvCompositions, 0 ChoiceCompositions, 5 TotalNumberOfCompositions, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 39, independent: 17, independent conditional: 17, independent unconditional: 0, dependent: 22, dependent conditional: 22, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 39, independent: 17, independent conditional: 9, independent unconditional: 8, dependent: 22, dependent conditional: 9, dependent unconditional: 13, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 39, independent: 17, independent conditional: 9, independent unconditional: 8, dependent: 22, dependent conditional: 9, dependent unconditional: 13, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 39, independent: 17, independent conditional: 9, independent unconditional: 8, dependent: 22, dependent conditional: 9, dependent unconditional: 13, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 11, independent: 5, independent conditional: 4, independent unconditional: 1, dependent: 6, dependent conditional: 3, dependent unconditional: 3, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 11, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 11, dependent conditional: 0, dependent unconditional: 11, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 11, independent: 5, independent conditional: 4, independent unconditional: 1, dependent: 6, dependent conditional: 3, dependent unconditional: 3, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 24, independent: 11, independent conditional: 10, independent unconditional: 1, dependent: 12, dependent conditional: 9, dependent unconditional: 3, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 39, independent: 12, independent conditional: 5, independent unconditional: 7, dependent: 16, dependent conditional: 6, dependent unconditional: 10, unknown: 11, unknown conditional: 7, unknown unconditional: 4] , Statistics on independence cache: Total cache size (in pairs): 55, Positive cache size: 32, Positive conditional cache size: 9, Positive unconditional cache size: 23, Negative cache size: 23, Negative conditional cache size: 4, Negative unconditional cache size: 19, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0, Eliminated conditions: 0, Maximal queried relation: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 0.1s, 17 PlacesBefore, 14 PlacesAfterwards, 9 TransitionsBefore, 6 TransitionsAfterwards, 0 CoEnabledTransitionPairs, 2 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 3 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 3 TotalNumberOfCompositions, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 59, Positive cache size: 36, Positive conditional cache size: 11, Positive unconditional cache size: 25, Negative cache size: 23, Negative conditional cache size: 4, Negative unconditional cache size: 19, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0, Eliminated conditions: 0, Maximal queried relation: -1 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 0.0s, 0 PlacesBefore, 0 PlacesAfterwards, 0 TransitionsBefore, 0 TransitionsAfterwards, 0 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 59, Positive cache size: 36, Positive conditional cache size: 11, Positive unconditional cache size: 25, Negative cache size: 23, Negative conditional cache size: 4, Negative unconditional cache size: 19, 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 - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 3 procedures, 95 locations, 2 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 4.3s, OverallIterations: 4, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 2.9s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 16 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 16 mSDsluCounter, 0 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 13 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 66 IncrementalHoareTripleChecker+Invalid, 79 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 13 mSolverCounterUnsat, 0 mSDtfsCounter, 66 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 11 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=44occurred in iteration=3, InterpolantAutomatonStates: 15, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.6s InterpolantComputationTime, 31 NumberOfCodeBlocks, 31 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 27 ConstructedInterpolants, 0 QuantifiedInterpolants, 108 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 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 1 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2022-12-06 04:58:24,923 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...