/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-RepeatedSemanticLbe.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-a802222-m [2022-12-13 01:15:15,779 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-13 01:15:15,781 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-13 01:15:15,808 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-13 01:15:15,808 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-13 01:15:15,809 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-13 01:15:15,810 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-13 01:15:15,811 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-13 01:15:15,812 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-13 01:15:15,813 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-13 01:15:15,813 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-13 01:15:15,814 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-13 01:15:15,814 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-13 01:15:15,815 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-13 01:15:15,816 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-13 01:15:15,816 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-13 01:15:15,817 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-13 01:15:15,832 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-13 01:15:15,833 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-13 01:15:15,835 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-13 01:15:15,835 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-13 01:15:15,836 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-13 01:15:15,837 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-13 01:15:15,837 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-13 01:15:15,840 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2022-12-13 01:15:15,845 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-13 01:15:15,845 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-13 01:15:15,846 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-13 01:15:15,847 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-RepeatedSemanticLbe.epf [2022-12-13 01:15:15,878 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-13 01:15:15,878 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-13 01:15:15,879 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-12-13 01:15:15,879 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-12-13 01:15:15,879 INFO L138 SettingsManager]: * Use SBE=true [2022-12-13 01:15:15,880 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-13 01:15:15,880 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-13 01:15:15,880 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-13 01:15:15,880 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-13 01:15:15,880 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-13 01:15:15,880 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-13 01:15:15,880 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-13 01:15:15,881 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-13 01:15:15,881 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-13 01:15:15,881 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-13 01:15:15,881 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-13 01:15:15,881 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-13 01:15:15,881 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-13 01:15:15,881 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-12-13 01:15:15,882 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-12-13 01:15:15,883 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-13 01:15:15,884 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 01:15:15,884 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-13 01:15:15,886 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-13 01:15:15,886 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-13 01:15:15,886 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-13 01:15:15,886 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-12-13 01:15:15,886 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=REPEATED_LIPTON_PN [2022-12-13 01:15:15,887 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-12-13 01:15:16,170 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-13 01:15:16,188 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-13 01:15:16,189 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-13 01:15:16,190 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-13 01:15:16,191 INFO L275 PluginConnector]: CDTParser initialized [2022-12-13 01:15:16,192 INFO L432 ainManager$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 [2022-12-13 01:15:17,218 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-13 01:15:17,454 INFO L351 CDTParser]: Found 1 translation units. [2022-12-13 01:15:17,454 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/13-privatized_31-traces-mine-vs-mutex_true.i [2022-12-13 01:15:17,465 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b29766a94/6d60304767964b66b2d017e49efadbdc/FLAG04e2aa8f9 [2022-12-13 01:15:17,475 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b29766a94/6d60304767964b66b2d017e49efadbdc [2022-12-13 01:15:17,477 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-13 01:15:17,478 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-12-13 01:15:17,478 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-13 01:15:17,478 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-13 01:15:17,480 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-13 01:15:17,481 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 01:15:17" (1/1) ... [2022-12-13 01:15:17,481 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@65ae1d3c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 01:15:17, skipping insertion in model container [2022-12-13 01:15:17,481 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 01:15:17" (1/1) ... [2022-12-13 01:15:17,486 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-13 01:15:17,519 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-13 01:15:17,646 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] [2022-12-13 01:15:17,768 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 01:15:17,779 INFO L203 MainTranslator]: Completed pre-run [2022-12-13 01:15:17,789 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] [2022-12-13 01:15:17,814 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 01:15:17,848 INFO L208 MainTranslator]: Completed translation [2022-12-13 01:15:17,848 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 01:15:17 WrapperNode [2022-12-13 01:15:17,848 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-13 01:15:17,849 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-13 01:15:17,849 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-13 01:15:17,850 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-13 01:15:17,855 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 01:15:17" (1/1) ... [2022-12-13 01:15:17,867 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 01:15:17" (1/1) ... [2022-12-13 01:15:17,880 INFO L138 Inliner]: procedures = 162, calls = 31, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 55 [2022-12-13 01:15:17,880 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-13 01:15:17,881 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-13 01:15:17,881 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-13 01:15:17,881 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-13 01:15:17,887 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 01:15:17" (1/1) ... [2022-12-13 01:15:17,887 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 01:15:17" (1/1) ... [2022-12-13 01:15:17,894 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 01:15:17" (1/1) ... [2022-12-13 01:15:17,894 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 01:15:17" (1/1) ... [2022-12-13 01:15:17,906 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 01:15:17" (1/1) ... [2022-12-13 01:15:17,907 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 01:15:17" (1/1) ... [2022-12-13 01:15:17,908 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 01:15:17" (1/1) ... [2022-12-13 01:15:17,909 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 01:15:17" (1/1) ... [2022-12-13 01:15:17,910 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-13 01:15:17,910 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-13 01:15:17,911 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-13 01:15:17,911 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-13 01:15:17,911 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 01:15:17" (1/1) ... [2022-12-13 01:15:17,915 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 01:15:17,929 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-12-13 01:15:17,952 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) [2022-12-13 01:15:17,978 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 [2022-12-13 01:15:17,992 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-12-13 01:15:17,992 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-12-13 01:15:17,994 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2022-12-13 01:15:17,994 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-13 01:15:17,994 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-12-13 01:15:17,994 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2022-12-13 01:15:17,994 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2022-12-13 01:15:17,994 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-12-13 01:15:17,995 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-13 01:15:17,995 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-13 01:15:17,995 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-13 01:15:17,996 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2022-12-13 01:15:18,144 INFO L236 CfgBuilder]: Building ICFG [2022-12-13 01:15:18,146 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-13 01:15:18,272 INFO L277 CfgBuilder]: Performing block encoding [2022-12-13 01:15:18,277 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-13 01:15:18,277 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2022-12-13 01:15:18,278 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 01:15:18 BoogieIcfgContainer [2022-12-13 01:15:18,279 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-13 01:15:18,280 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-13 01:15:18,280 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-13 01:15:18,282 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-13 01:15:18,282 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.12 01:15:17" (1/3) ... [2022-12-13 01:15:18,283 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4f0b45cf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 01:15:18, skipping insertion in model container [2022-12-13 01:15:18,283 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 01:15:17" (2/3) ... [2022-12-13 01:15:18,283 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4f0b45cf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 01:15:18, skipping insertion in model container [2022-12-13 01:15:18,283 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 01:15:18" (3/3) ... [2022-12-13 01:15:18,284 INFO L112 eAbstractionObserver]: Analyzing ICFG 13-privatized_31-traces-mine-vs-mutex_true.i [2022-12-13 01:15:18,301 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-13 01:15:18,302 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-12-13 01:15:18,302 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-12-13 01:15:18,361 INFO L144 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2022-12-13 01:15:18,390 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 78 places, 75 transitions, 158 flow [2022-12-13 01:15:18,434 INFO L130 PetriNetUnfolder]: 1/74 cut-off events. [2022-12-13 01:15:18,434 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2022-12-13 01:15:18,439 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. [2022-12-13 01:15:18,439 INFO L82 GeneralOperation]: Start removeDead. Operand has 78 places, 75 transitions, 158 flow [2022-12-13 01:15:18,444 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 65 places, 61 transitions, 125 flow [2022-12-13 01:15:18,445 INFO L203 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-12-13 01:15:18,465 INFO L174 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 65 places, 61 transitions, 125 flow [2022-12-13 01:15:18,470 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 65 places, 61 transitions, 125 flow [2022-12-13 01:15:18,501 INFO L130 PetriNetUnfolder]: 0/61 cut-off events. [2022-12-13 01:15:18,501 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-13 01:15:18,501 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. [2022-12-13 01:15:18,503 INFO L222 LiptonReduction]: Starting Lipton reduction on Petri net that has 65 places, 61 transitions, 125 flow [2022-12-13 01:15:18,503 INFO L226 LiptonReduction]: Number of co-enabled transitions 504 [2022-12-13 01:15:20,722 INFO L241 LiptonReduction]: Total number of compositions: 49 [2022-12-13 01:15:20,738 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-13 01:15:20,748 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;@6b503c71, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, Conditionality=CONDITIONAL_DISJUNCTIVE, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-12-13 01:15:20,748 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2022-12-13 01:15:20,751 INFO L130 PetriNetUnfolder]: 0/18 cut-off events. [2022-12-13 01:15:20,751 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-13 01:15:20,751 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-13 01:15:20,753 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2022-12-13 01:15:20,753 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2022-12-13 01:15:20,756 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 01:15:20,756 INFO L85 PathProgramCache]: Analyzing trace with hash 1331986650, now seen corresponding path program 1 times [2022-12-13 01:15:20,762 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 01:15:20,762 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [74030434] [2022-12-13 01:15:20,762 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 01:15:20,762 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 01:15:20,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 01:15:20,975 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 01:15:20,975 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 01:15:20,975 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [74030434] [2022-12-13 01:15:20,976 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [74030434] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 01:15:20,976 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 01:15:20,976 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-12-13 01:15:20,977 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2077619274] [2022-12-13 01:15:20,977 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 01:15:20,982 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-13 01:15:20,982 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 01:15:20,994 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-13 01:15:20,995 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 01:15:20,995 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 7 out of 25 [2022-12-13 01:15:20,996 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 29 places, 25 transitions, 53 flow. Second operand has 3 states, 3 states have (on average 8.666666666666666) internal successors, (26), 3 states have internal predecessors, (26), 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) [2022-12-13 01:15:20,996 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 01:15:20,997 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 7 of 25 [2022-12-13 01:15:20,997 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 01:15:21,039 INFO L130 PetriNetUnfolder]: 32/98 cut-off events. [2022-12-13 01:15:21,039 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-13 01:15:21,039 INFO L83 FinitePrefix]: Finished finitePrefix Result has 186 conditions, 98 events. 32/98 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 387 event pairs, 16 based on Foata normal form. 6/75 useless extension candidates. Maximal degree in co-relation 177. Up to 55 conditions per place. [2022-12-13 01:15:21,040 INFO L137 encePairwiseOnDemand]: 21/25 looper letters, 14 selfloop transitions, 3 changer transitions 4/27 dead transitions. [2022-12-13 01:15:21,040 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 31 places, 27 transitions, 97 flow [2022-12-13 01:15:21,041 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 01:15:21,043 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-12-13 01:15:21,047 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 42 transitions. [2022-12-13 01:15:21,048 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.56 [2022-12-13 01:15:21,049 INFO L175 Difference]: Start difference. First operand has 29 places, 25 transitions, 53 flow. Second operand 3 states and 42 transitions. [2022-12-13 01:15:21,049 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 31 places, 27 transitions, 97 flow [2022-12-13 01:15:21,050 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 30 places, 27 transitions, 96 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-12-13 01:15:21,052 INFO L231 Difference]: Finished difference. Result has 31 places, 21 transitions, 55 flow [2022-12-13 01:15:21,053 INFO L277 CegarLoopForPetriNet]: {PETRI_ALPHABET=25, PETRI_DIFFERENCE_MINUEND_FLOW=52, PETRI_DIFFERENCE_MINUEND_PLACES=28, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=25, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=22, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=55, PETRI_PLACES=31, PETRI_TRANSITIONS=21} [2022-12-13 01:15:21,055 INFO L295 CegarLoopForPetriNet]: 29 programPoint places, 2 predicate places. [2022-12-13 01:15:21,055 WARN L178 eatedLiptonReduction]: Counterexample is not a run of mAbstraction. Replaying acceptance of the word... [2022-12-13 01:15:21,055 INFO L89 Accepts]: Start accepts. Operand has 31 places, 21 transitions, 55 flow [2022-12-13 01:15:21,057 INFO L95 Accepts]: Finished accepts. [2022-12-13 01:15:21,057 INFO L203 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-12-13 01:15:21,057 INFO L174 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 31 places, 21 transitions, 55 flow [2022-12-13 01:15:21,058 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 27 places, 21 transitions, 55 flow [2022-12-13 01:15:21,060 INFO L130 PetriNetUnfolder]: 0/22 cut-off events. [2022-12-13 01:15:21,060 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-13 01:15:21,061 INFO L83 FinitePrefix]: Finished finitePrefix Result has 34 conditions, 22 events. 0/22 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 42 event pairs, 0 based on Foata normal form. 0/15 useless extension candidates. Maximal degree in co-relation 0. Up to 5 conditions per place. [2022-12-13 01:15:21,065 INFO L222 LiptonReduction]: Starting Lipton reduction on Petri net that has 27 places, 21 transitions, 55 flow [2022-12-13 01:15:21,065 INFO L226 LiptonReduction]: Number of co-enabled transitions 132 [2022-12-13 01:15:21,168 INFO L241 LiptonReduction]: Total number of compositions: 1 [2022-12-13 01:15:21,170 INFO L158 eatedLiptonReduction]: Time needed for LBE in milliseconds: 115 [2022-12-13 01:15:21,172 INFO L495 AbstractCegarLoop]: Abstraction has has 26 places, 20 transitions, 53 flow [2022-12-13 01:15:21,172 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 8.666666666666666) internal successors, (26), 3 states have internal predecessors, (26), 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) [2022-12-13 01:15:21,172 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-13 01:15:21,172 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 01:15:21,172 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-13 01:15:21,173 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2022-12-13 01:15:21,173 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 01:15:21,174 INFO L85 PathProgramCache]: Analyzing trace with hash 138882381, now seen corresponding path program 1 times [2022-12-13 01:15:21,174 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 01:15:21,174 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1661718539] [2022-12-13 01:15:21,174 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 01:15:21,174 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 01:15:21,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 01:15:21,328 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 01:15:21,328 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 01:15:21,329 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1661718539] [2022-12-13 01:15:21,329 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1661718539] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 01:15:21,329 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 01:15:21,329 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-13 01:15:21,329 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1614234736] [2022-12-13 01:15:21,330 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 01:15:21,331 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-13 01:15:21,333 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 01:15:21,333 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-13 01:15:21,333 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-12-13 01:15:21,333 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 0 out of 20 [2022-12-13 01:15:21,334 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 26 places, 20 transitions, 53 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) [2022-12-13 01:15:21,334 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 01:15:21,334 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 0 of 20 [2022-12-13 01:15:21,335 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 01:15:21,377 INFO L130 PetriNetUnfolder]: 26/80 cut-off events. [2022-12-13 01:15:21,378 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-13 01:15:21,378 INFO L83 FinitePrefix]: Finished finitePrefix Result has 182 conditions, 80 events. 26/80 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 210 event pairs, 6 based on Foata normal form. 12/74 useless extension candidates. Maximal degree in co-relation 171. Up to 61 conditions per place. [2022-12-13 01:15:21,378 INFO L137 encePairwiseOnDemand]: 14/20 looper letters, 12 selfloop transitions, 6 changer transitions 4/22 dead transitions. [2022-12-13 01:15:21,378 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 29 places, 22 transitions, 101 flow [2022-12-13 01:15:21,379 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-13 01:15:21,379 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2022-12-13 01:15:21,380 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 24 transitions. [2022-12-13 01:15:21,381 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.3 [2022-12-13 01:15:21,381 INFO L175 Difference]: Start difference. First operand has 26 places, 20 transitions, 53 flow. Second operand 4 states and 24 transitions. [2022-12-13 01:15:21,381 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 29 places, 22 transitions, 101 flow [2022-12-13 01:15:21,381 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 27 places, 22 transitions, 95 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-12-13 01:15:21,382 INFO L231 Difference]: Finished difference. Result has 27 places, 16 transitions, 50 flow [2022-12-13 01:15:21,382 INFO L277 CegarLoopForPetriNet]: {PETRI_ALPHABET=20, PETRI_DIFFERENCE_MINUEND_FLOW=47, PETRI_DIFFERENCE_MINUEND_PLACES=24, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=20, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=14, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=50, PETRI_PLACES=27, PETRI_TRANSITIONS=16} [2022-12-13 01:15:21,383 INFO L295 CegarLoopForPetriNet]: 29 programPoint places, -2 predicate places. [2022-12-13 01:15:21,383 WARN L178 eatedLiptonReduction]: Counterexample is not a run of mAbstraction. Replaying acceptance of the word... [2022-12-13 01:15:21,383 INFO L89 Accepts]: Start accepts. Operand has 27 places, 16 transitions, 50 flow [2022-12-13 01:15:21,383 INFO L95 Accepts]: Finished accepts. [2022-12-13 01:15:21,383 INFO L203 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-12-13 01:15:21,384 INFO L174 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 27 places, 16 transitions, 50 flow [2022-12-13 01:15:21,384 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 23 places, 16 transitions, 50 flow [2022-12-13 01:15:21,390 INFO L130 PetriNetUnfolder]: 0/24 cut-off events. [2022-12-13 01:15:21,390 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-13 01:15:21,390 INFO L83 FinitePrefix]: Finished finitePrefix Result has 42 conditions, 24 events. 0/24 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 28 event pairs, 0 based on Foata normal form. 0/22 useless extension candidates. Maximal degree in co-relation 0. Up to 5 conditions per place. [2022-12-13 01:15:21,390 INFO L222 LiptonReduction]: Starting Lipton reduction on Petri net that has 23 places, 16 transitions, 50 flow [2022-12-13 01:15:21,391 INFO L226 LiptonReduction]: Number of co-enabled transitions 36 [2022-12-13 01:15:21,655 INFO L241 LiptonReduction]: Total number of compositions: 5 [2022-12-13 01:15:21,656 INFO L158 eatedLiptonReduction]: Time needed for LBE in milliseconds: 273 [2022-12-13 01:15:21,656 INFO L495 AbstractCegarLoop]: Abstraction has has 18 places, 11 transitions, 40 flow [2022-12-13 01:15:21,656 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) [2022-12-13 01:15:21,656 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-13 01:15:21,657 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 01:15:21,657 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-12-13 01:15:21,657 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2022-12-13 01:15:21,657 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 01:15:21,657 INFO L85 PathProgramCache]: Analyzing trace with hash -875427353, now seen corresponding path program 1 times [2022-12-13 01:15:21,657 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 01:15:21,657 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1404650543] [2022-12-13 01:15:21,658 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 01:15:21,658 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 01:15:21,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 01:15:21,860 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 01:15:21,860 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 01:15:21,862 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1404650543] [2022-12-13 01:15:21,863 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1404650543] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 01:15:21,863 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 01:15:21,863 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-13 01:15:21,864 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1703195956] [2022-12-13 01:15:21,864 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 01:15:21,864 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-13 01:15:21,864 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 01:15:21,864 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-13 01:15:21,864 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-12-13 01:15:21,865 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 0 out of 11 [2022-12-13 01:15:21,865 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 18 places, 11 transitions, 40 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) [2022-12-13 01:15:21,865 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 01:15:21,865 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 0 of 11 [2022-12-13 01:15:21,865 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 01:15:21,892 INFO L130 PetriNetUnfolder]: 4/27 cut-off events. [2022-12-13 01:15:21,892 INFO L131 PetriNetUnfolder]: For 5/5 co-relation queries the response was YES. [2022-12-13 01:15:21,893 INFO L83 FinitePrefix]: Finished finitePrefix Result has 77 conditions, 27 events. 4/27 cut-off events. For 5/5 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 47 event pairs, 4 based on Foata normal form. 4/27 useless extension candidates. Maximal degree in co-relation 66. Up to 15 conditions per place. [2022-12-13 01:15:21,894 INFO L137 encePairwiseOnDemand]: 1/11 looper letters, 1 selfloop transitions, 10 changer transitions 0/11 dead transitions. [2022-12-13 01:15:21,894 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 21 places, 11 transitions, 62 flow [2022-12-13 01:15:21,894 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-13 01:15:21,894 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2022-12-13 01:15:21,895 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 14 transitions. [2022-12-13 01:15:21,895 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.3181818181818182 [2022-12-13 01:15:21,895 INFO L175 Difference]: Start difference. First operand has 18 places, 11 transitions, 40 flow. Second operand 4 states and 14 transitions. [2022-12-13 01:15:21,895 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 21 places, 11 transitions, 62 flow [2022-12-13 01:15:21,895 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 19 places, 11 transitions, 56 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-12-13 01:15:21,896 INFO L231 Difference]: Finished difference. Result has 19 places, 11 transitions, 54 flow [2022-12-13 01:15:21,896 INFO L277 CegarLoopForPetriNet]: {PETRI_ALPHABET=11, PETRI_DIFFERENCE_MINUEND_FLOW=34, PETRI_DIFFERENCE_MINUEND_PLACES=16, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=11, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=54, PETRI_PLACES=19, PETRI_TRANSITIONS=11} [2022-12-13 01:15:21,897 INFO L295 CegarLoopForPetriNet]: 29 programPoint places, -10 predicate places. [2022-12-13 01:15:21,897 WARN L178 eatedLiptonReduction]: Counterexample is not a run of mAbstraction. Replaying acceptance of the word... [2022-12-13 01:15:21,897 INFO L89 Accepts]: Start accepts. Operand has 19 places, 11 transitions, 54 flow [2022-12-13 01:15:21,897 INFO L95 Accepts]: Finished accepts. [2022-12-13 01:15:21,897 INFO L203 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-12-13 01:15:21,898 INFO L174 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 19 places, 11 transitions, 54 flow [2022-12-13 01:15:21,898 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 19 places, 11 transitions, 54 flow [2022-12-13 01:15:21,902 INFO L130 PetriNetUnfolder]: 4/27 cut-off events. [2022-12-13 01:15:21,902 INFO L131 PetriNetUnfolder]: For 5/5 co-relation queries the response was YES. [2022-12-13 01:15:21,903 INFO L83 FinitePrefix]: Finished finitePrefix Result has 70 conditions, 27 events. 4/27 cut-off events. For 5/5 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 47 event pairs, 4 based on Foata normal form. 0/23 useless extension candidates. Maximal degree in co-relation 61. Up to 14 conditions per place. [2022-12-13 01:15:21,903 INFO L222 LiptonReduction]: Starting Lipton reduction on Petri net that has 19 places, 11 transitions, 54 flow [2022-12-13 01:15:21,903 INFO L226 LiptonReduction]: Number of co-enabled transitions 0 [2022-12-13 01:15:22,068 INFO L241 LiptonReduction]: Total number of compositions: 3 [2022-12-13 01:15:22,069 INFO L158 eatedLiptonReduction]: Time needed for LBE in milliseconds: 172 [2022-12-13 01:15:22,069 INFO L495 AbstractCegarLoop]: Abstraction has has 16 places, 8 transitions, 42 flow [2022-12-13 01:15:22,069 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) [2022-12-13 01:15:22,069 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-13 01:15:22,069 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2022-12-13 01:15:22,069 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-12-13 01:15:22,069 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2022-12-13 01:15:22,070 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 01:15:22,070 INFO L85 PathProgramCache]: Analyzing trace with hash -1064284086, now seen corresponding path program 1 times [2022-12-13 01:15:22,070 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 01:15:22,070 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [398785866] [2022-12-13 01:15:22,070 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 01:15:22,070 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 01:15:22,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 01:15:22,147 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 01:15:22,147 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 01:15:22,147 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [398785866] [2022-12-13 01:15:22,148 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [398785866] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 01:15:22,148 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 01:15:22,148 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-13 01:15:22,148 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1698121489] [2022-12-13 01:15:22,148 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 01:15:22,148 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-13 01:15:22,148 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 01:15:22,149 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-13 01:15:22,150 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-13 01:15:22,150 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 0 out of 8 [2022-12-13 01:15:22,150 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 16 places, 8 transitions, 42 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) [2022-12-13 01:15:22,150 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 01:15:22,150 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 0 of 8 [2022-12-13 01:15:22,150 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 01:15:22,166 INFO L130 PetriNetUnfolder]: 4/15 cut-off events. [2022-12-13 01:15:22,166 INFO L131 PetriNetUnfolder]: For 5/5 co-relation queries the response was YES. [2022-12-13 01:15:22,166 INFO L83 FinitePrefix]: Finished finitePrefix Result has 59 conditions, 15 events. 4/15 cut-off events. For 5/5 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 22 event pairs, 3 based on Foata normal form. 3/14 useless extension candidates. Maximal degree in co-relation 47. Up to 14 conditions per place. [2022-12-13 01:15:22,166 INFO L137 encePairwiseOnDemand]: 2/8 looper letters, 0 selfloop transitions, 0 changer transitions 8/8 dead transitions. [2022-12-13 01:15:22,166 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 17 places, 8 transitions, 55 flow [2022-12-13 01:15:22,167 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-13 01:15:22,167 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2022-12-13 01:15:22,167 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 9 transitions. [2022-12-13 01:15:22,167 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.28125 [2022-12-13 01:15:22,167 INFO L175 Difference]: Start difference. First operand has 16 places, 8 transitions, 42 flow. Second operand 4 states and 9 transitions. [2022-12-13 01:15:22,167 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 17 places, 8 transitions, 55 flow [2022-12-13 01:15:22,167 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 14 places, 8 transitions, 47 flow, removed 0 selfloop flow, removed 3 redundant places. [2022-12-13 01:15:22,168 INFO L231 Difference]: Finished difference. Result has 14 places, 0 transitions, 0 flow [2022-12-13 01:15:22,168 INFO L277 CegarLoopForPetriNet]: {PETRI_ALPHABET=8, PETRI_DIFFERENCE_MINUEND_FLOW=27, PETRI_DIFFERENCE_MINUEND_PLACES=11, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=7, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=7, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=0, PETRI_PLACES=14, PETRI_TRANSITIONS=0} [2022-12-13 01:15:22,168 INFO L295 CegarLoopForPetriNet]: 29 programPoint places, -15 predicate places. [2022-12-13 01:15:22,168 INFO L203 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-12-13 01:15:22,168 INFO L174 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 14 places, 0 transitions, 0 flow [2022-12-13 01:15:22,169 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 0 places, 0 transitions, 0 flow [2022-12-13 01:15:22,169 INFO L130 PetriNetUnfolder]: 0/0 cut-off events. [2022-12-13 01:15:22,169 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-13 01:15:22,169 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. [2022-12-13 01:15:22,169 INFO L222 LiptonReduction]: Starting Lipton reduction on Petri net that has 0 places, 0 transitions, 0 flow [2022-12-13 01:15:22,169 INFO L226 LiptonReduction]: Number of co-enabled transitions 0 [2022-12-13 01:15:22,169 INFO L241 LiptonReduction]: Total number of compositions: 0 [2022-12-13 01:15:22,170 INFO L158 eatedLiptonReduction]: Time needed for LBE in milliseconds: 2 [2022-12-13 01:15:22,170 INFO L495 AbstractCegarLoop]: Abstraction has has 0 places, 0 transitions, 0 flow [2022-12-13 01:15:22,170 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) [2022-12-13 01:15:22,172 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (1 of 2 remaining) [2022-12-13 01:15:22,172 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 2 remaining) [2022-12-13 01:15:22,172 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-12-13 01:15:22,172 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2022-12-13 01:15:22,174 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-12-13 01:15:22,174 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-12-13 01:15:22,176 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.12 01:15:22 BasicIcfg [2022-12-13 01:15:22,176 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-12-13 01:15:22,177 INFO L158 Benchmark]: Toolchain (without parser) took 4698.97ms. Allocated memory was 194.0MB in the beginning and 252.7MB in the end (delta: 58.7MB). Free memory was 169.4MB in the beginning and 143.1MB in the end (delta: 26.3MB). Peak memory consumption was 86.1MB. Max. memory is 8.0GB. [2022-12-13 01:15:22,177 INFO L158 Benchmark]: CDTParser took 0.11ms. Allocated memory is still 194.0MB. Free memory was 171.1MB in the beginning and 171.0MB in the end (delta: 75.5kB). There was no memory consumed. Max. memory is 8.0GB. [2022-12-13 01:15:22,177 INFO L158 Benchmark]: CACSL2BoogieTranslator took 370.03ms. Allocated memory is still 194.0MB. Free memory was 169.4MB in the beginning and 150.1MB in the end (delta: 19.4MB). Peak memory consumption was 18.9MB. Max. memory is 8.0GB. [2022-12-13 01:15:22,177 INFO L158 Benchmark]: Boogie Procedure Inliner took 31.06ms. Allocated memory is still 194.0MB. Free memory was 150.1MB in the beginning and 148.0MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2022-12-13 01:15:22,177 INFO L158 Benchmark]: Boogie Preprocessor took 29.38ms. Allocated memory is still 194.0MB. Free memory was 148.0MB in the beginning and 146.9MB in the end (delta: 1.0MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2022-12-13 01:15:22,178 INFO L158 Benchmark]: RCFGBuilder took 368.23ms. Allocated memory is still 194.0MB. Free memory was 146.9MB in the beginning and 132.7MB in the end (delta: 14.2MB). Peak memory consumption was 14.7MB. Max. memory is 8.0GB. [2022-12-13 01:15:22,178 INFO L158 Benchmark]: TraceAbstraction took 3895.97ms. Allocated memory was 194.0MB in the beginning and 252.7MB in the end (delta: 58.7MB). Free memory was 131.7MB in the beginning and 143.1MB in the end (delta: -11.4MB). Peak memory consumption was 48.3MB. Max. memory is 8.0GB. [2022-12-13 01:15:22,179 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 194.0MB. Free memory was 171.1MB in the beginning and 171.0MB in the end (delta: 75.5kB). There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 370.03ms. Allocated memory is still 194.0MB. Free memory was 169.4MB in the beginning and 150.1MB in the end (delta: 19.4MB). Peak memory consumption was 18.9MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 31.06ms. Allocated memory is still 194.0MB. Free memory was 150.1MB in the beginning and 148.0MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 29.38ms. Allocated memory is still 194.0MB. Free memory was 148.0MB in the beginning and 146.9MB in the end (delta: 1.0MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * RCFGBuilder took 368.23ms. Allocated memory is still 194.0MB. Free memory was 146.9MB in the beginning and 132.7MB in the end (delta: 14.2MB). Peak memory consumption was 14.7MB. Max. memory is 8.0GB. * TraceAbstraction took 3895.97ms. Allocated memory was 194.0MB in the beginning and 252.7MB in the end (delta: 58.7MB). Free memory was 131.7MB in the beginning and 143.1MB in the end (delta: -11.4MB). Peak memory consumption was 48.3MB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 2.2s, 65 PlacesBefore, 29 PlacesAfterwards, 61 TransitionsBefore, 25 TransitionsAfterwards, 504 CoEnabledTransitionPairs, 2 FixpointIterations, 0 TrivialSequentialCompositions, 3 ConcurrentSequentialCompositions, 27 TrivialYvCompositions, 19 ConcurrentYvCompositions, 0 ChoiceCompositions, 49 TotalNumberOfCompositions, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 509, independent: 427, independent conditional: 427, independent unconditional: 0, dependent: 82, dependent conditional: 82, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 509, independent: 427, independent conditional: 0, independent unconditional: 427, dependent: 82, dependent conditional: 0, dependent unconditional: 82, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 509, independent: 427, independent conditional: 0, independent unconditional: 427, dependent: 82, dependent conditional: 0, dependent unconditional: 82, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 509, independent: 427, independent conditional: 0, independent unconditional: 427, dependent: 82, dependent conditional: 0, dependent unconditional: 82, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 391, independent: 350, independent conditional: 0, independent unconditional: 350, dependent: 41, dependent conditional: 0, dependent unconditional: 41, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 391, independent: 309, independent conditional: 0, independent unconditional: 309, dependent: 82, dependent conditional: 0, dependent unconditional: 82, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 82, independent: 41, independent conditional: 0, independent unconditional: 41, dependent: 41, dependent conditional: 0, dependent unconditional: 41, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 207, independent: 103, independent conditional: 0, independent unconditional: 103, dependent: 104, dependent conditional: 0, dependent unconditional: 104, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 509, independent: 77, independent conditional: 0, independent unconditional: 77, dependent: 41, dependent conditional: 0, dependent unconditional: 41, unknown: 391, unknown conditional: 0, unknown unconditional: 391] , Statistics on independence cache: Total cache size (in pairs): 554, Positive cache size: 513, Positive conditional cache size: 0, Positive unconditional cache size: 513, Negative cache size: 41, Negative conditional cache size: 0, Negative unconditional cache size: 41, 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, 27 PlacesBefore, 26 PlacesAfterwards, 21 TransitionsBefore, 20 TransitionsAfterwards, 132 CoEnabledTransitionPairs, 2 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 1 ConcurrentYvCompositions, 0 ChoiceCompositions, 1 TotalNumberOfCompositions, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 135, independent: 73, independent conditional: 73, independent unconditional: 0, dependent: 62, dependent conditional: 62, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 135, independent: 73, independent conditional: 14, independent unconditional: 59, dependent: 62, dependent conditional: 4, dependent unconditional: 58, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 135, independent: 73, independent conditional: 14, independent unconditional: 59, dependent: 62, dependent conditional: 4, dependent unconditional: 58, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 135, independent: 73, independent conditional: 14, independent unconditional: 59, dependent: 62, dependent conditional: 4, dependent unconditional: 58, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 56, independent: 33, independent conditional: 10, independent unconditional: 23, dependent: 23, dependent conditional: 2, dependent unconditional: 21, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 56, independent: 19, independent conditional: 0, independent unconditional: 19, dependent: 37, dependent conditional: 0, dependent unconditional: 37, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 37, independent: 14, independent conditional: 2, independent unconditional: 12, dependent: 23, dependent conditional: 2, dependent unconditional: 21, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 42, independent: 15, independent conditional: 2, independent unconditional: 13, dependent: 27, dependent conditional: 3, dependent unconditional: 24, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 135, independent: 40, independent conditional: 4, independent unconditional: 36, dependent: 39, dependent conditional: 2, dependent unconditional: 37, unknown: 56, unknown conditional: 12, unknown unconditional: 44] , Statistics on independence cache: Total cache size (in pairs): 56, Positive cache size: 33, Positive conditional cache size: 10, Positive unconditional cache size: 23, Negative cache size: 23, Negative conditional cache size: 2, Negative unconditional cache size: 21, 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: 0.3s, 23 PlacesBefore, 18 PlacesAfterwards, 16 TransitionsBefore, 11 TransitionsAfterwards, 36 CoEnabledTransitionPairs, 2 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 2 TrivialYvCompositions, 3 ConcurrentYvCompositions, 0 ChoiceCompositions, 5 TotalNumberOfCompositions, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 53, independent: 23, independent conditional: 23, independent unconditional: 0, dependent: 30, dependent conditional: 30, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 53, independent: 23, independent conditional: 10, independent unconditional: 13, dependent: 30, dependent conditional: 10, dependent unconditional: 20, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 53, independent: 23, independent conditional: 10, independent unconditional: 13, dependent: 30, dependent conditional: 10, dependent unconditional: 20, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 53, independent: 23, independent conditional: 10, independent unconditional: 13, dependent: 30, dependent conditional: 10, dependent unconditional: 20, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 17, independent: 11, independent conditional: 8, independent unconditional: 3, dependent: 6, dependent conditional: 4, dependent unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 17, independent: 2, independent conditional: 0, independent unconditional: 2, dependent: 15, dependent conditional: 0, dependent unconditional: 15, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 15, independent: 9, independent conditional: 8, independent unconditional: 1, dependent: 6, dependent conditional: 4, dependent unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 53, independent: 44, independent conditional: 10, independent unconditional: 33, dependent: 9, dependent conditional: 7, dependent unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 53, independent: 12, independent conditional: 2, independent unconditional: 10, dependent: 24, dependent conditional: 6, dependent unconditional: 18, unknown: 17, unknown conditional: 12, unknown unconditional: 5] , Statistics on independence cache: Total cache size (in pairs): 77, Positive cache size: 48, Positive conditional cache size: 18, Positive unconditional cache size: 30, Negative cache size: 29, Negative conditional cache size: 6, Negative unconditional cache size: 23, 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, 19 PlacesBefore, 16 PlacesAfterwards, 11 TransitionsBefore, 8 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): 83, Positive cache size: 54, Positive conditional cache size: 23, Positive unconditional cache size: 31, Negative cache size: 29, Negative conditional cache size: 6, Negative unconditional cache size: 23, 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): 83, Positive cache size: 54, Positive conditional cache size: 23, Positive unconditional cache size: 31, Negative cache size: 29, Negative conditional cache size: 6, Negative unconditional cache size: 23, 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: 3.8s, OverallIterations: 4, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 2.4s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 23 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 23 mSDsluCounter, 0 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 18 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 92 IncrementalHoareTripleChecker+Invalid, 110 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 18 mSolverCounterUnsat, 0 mSDtfsCounter, 92 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=55occurred in iteration=1, 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, 0.5s InterpolantComputationTime, 31 NumberOfCodeBlocks, 31 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 27 ConstructedInterpolants, 0 QuantifiedInterpolants, 104 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! [2022-12-13 01:15:22,192 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...